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500mA MicroPowerTM LDO General Description
The AAT3239 MicroPowerTM Low Dropout Linear Regulator is ideally suited for portable applications where very fast transient response, extended battery life and small size are critical. The AAT3239 has been specifically designed for high speed turn on and turn off performance, fast transient response, good power supply rejection ratio (PSRR) and is reasonably low noise, making it ideal for powering sensitive circuits with fast switching requirements. Other features include low quiescent current, typically 70A, and low dropout voltage which is typically less than 400mV at 300mA. The device is output short circuit protected and has a thermal shutdown circuit for additional protection under extreme operating conditions. The AAT3239 also features a low-power shutdown mode for extended battery life. A reference bypass pin has been provided to improve PSRR performance and output noise, by connecting a small external capacitor from the AAT3239's reference output to ground. The AAT3239 is available in an 8-pin TSOPJW-8 package in factory programmed voltages.
AAT3239
Features
* * * * * * * * * * * * * * *
PowerLinearTM
500mA Output Current Low Dropout - 400mV at 300mA High accuracy 2.0% 70A Quiescent Current Fast line and load transient response High speed device turn-on and shutdown High Power Supply Rejection Ratio Low self noise Short circuit protection Over-Temperature protection Uses Low ESR ceramic capacitors Noise reduction bypass capacitor Shutdown mode for longer battery life Low temperature coefficient TSOPJW 8-pin package
Preliminary Information
Applications
* * * * * Cellular Phones Notebook Computers Portable Communication Devices Personal Portable Electronics Digital Cameras
Typical Application
VIN IN OUT VOUT
AAT3239
ON/OFF 1F EN GND 10nF 2.2F BYP
GND
GND
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500mA MicroPowerTM LDO Pin Descriptions
Pin #
1 2
AAT3239
Symbol
BYP EN
Function
Bypass capacitor connection - to improve AC ripple rejection, connect a 10nF capacitor to GND. This will also provide a soft start function. Enable pin - this pin should not be left floating. When pulled low the PMOS pass transistor turns off and all internal circuitry enters low-power mode, consuming less than 1A. Output pin - should be decoupled with 2.2F ceramic capacitor. Input voltage pin - should be decoupled with 1F or greater capacitor. Ground connection pin
3 4 5, 6, 7, 8
OUT IN GND
Pin Configuration
TSOPJW-8 (Top View) BYP EN OUT IN GND GND GND GND
1
8
2
7
3
6
4
9
2
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500mA MicroPowerTM LDO Absolute Maximum Ratings1
Symbol
VIN VENIN(MAX) IOUT TJ
AAT3239
Description
Input Voltage Maximum EN to Input Voltage DC Output Current Operating Junction Temperature Range
Value
6 0.3 PD/(VIN-VO) -40 to 150
Units
V V mA C
Note 1: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time.
Thermal Information
Symbol
JA PD
Description
Maximum Thermal Resistance Maximum Power Dissipation 2, 3 (TA = 25C)
2
Rating
90 1.11
Units
C/W W
Note 2: Mounted on a demo board. Note 3: Derate 11.1 mW/C above 25C.
Recommended Operating Conditions
Symbol
VIN T
Description
Input Voltage Ambient Temperature Range
4
Rating
(VOUT+VDO) to 5.5 -40 to +85
Units
V C
Note 4: To calculate minimum input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX) as long as VIN 2.5V.
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500mA MicroPowerTM LDO Electrical Characteristics3
(VIN=VOUT(NOM)+1.2V for VOUT options greater than 1.5V. VIN= 2.5 for VOUT1.5V. CIN=1f, TA= -40 to 85C unless otherwise noted. Typical values are TA=25C) Symbol
VOUT IOUT VDO ISC IQ ISD VOUT/ VOUT*VIN VOUT(line) VOUT(load) tENDLY VEN(L) VEN(H) IEN PSRR TSD THYS eN TC
AAT3239
IOUT=1mA, COUT=2.2F, Units
%
Description
Output Voltage Tolerance
Conditions
IOUT = 1mA to 300mA IOUT = 1mA to 500mA TA=25C TA=-40 to 85C TA=25C TA=-40 to 85C
Min Typ Max
-1.5 -2.5 -2.0 -3.5 500 1.5 2.5 2.0 3.5 400 600 0.8 1.2 600 70 125 1 0.09 2.5 100 120 15 0.6 1.5
Output Current Dropout Voltage 1, 2 Short Circuit Current Ground Current Shutdown Current Line Regulation Dynamic Line Regulation Dynamic Load Regulation Enable Delay Time Enable Threshold Low Enable Threshold High Leakage Current on Enable Pin Power Supply Rejection Ratio
VOUT > 1.2V IOUT = 300mA IOUT = 500mA VOUT < 0.4V VIN = 5V, No load, EN = VIN VIN = 5V, EN = 0V VIN = VOUT + 1 to 5.0V VIN = VOUT+1V to VOUT+2V, IOUT=500mA, TR/TF =2s IOUT = 1mA to 300mA, TR<5s IOUT = 1mA to 500mA, TR<5s BYP = open
mA mV V mA A A %/V mV mV s V V A dB C C Vrms/rtHz ppm/C
VEN = 5V 1 kHz IOUT=10mA, CBYP=10nF 10kHz 1MHz 67 47 45 145 12 50 22
1
Over Temp Shutdown Threshold Over Temp Shutdown Hysteresis Output Noise Noise Power BW = 300Hz-50kHz Output Voltage Temp. Coeff.
Notes: 1. VDO is defined as VIN - VOUT when VOUT is 98% of nominal. 2. For VOUT < 2.1V, VDO = 2.5V - VOUT. 3. The AAT 3239 is guaranteed to meet performance over the -40 to 85C operating temperature range and are assured by design, characterization and correlation with statistical process controls.
4
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500mA MicroPowerTM LDO Typical Characteristics
AAT3239
(Unless otherwise noted, VIN = 5V, TA = 25C) Dropout Voltage vs. Temperature
900 840 780 720 660 600 540 480 420 360 300 240 180 120 60 0 3.20
Dropout Characteristics
3.00 2.80
Dropout Voltage (mV)
IL = 500mA
IL = 400mA IL = 300mA
IOUT = 0mA
2.60
V OUT (V)
2.40 2.20 2.00 1.80 1.60
IOUT = 150mA IOUT = 100mA IOUT = 50mA IOUT = 10mA
2.80 2.90 3.00 3.10 3.20 3.30 3.40
IOUT = 500mA IOUT = 300mA
IL = 150mA
IL = 100mA
IL = 50mA
-40 -30 -20 -10 0
10 20 30 40
50 60 70 80 90 100 110 120
1.40 2.70 3.50 3.60 3.70
Temperature (C)
VIN (V)
Dropout Voltage vs. Output Current
900 800
90 80 70 60
Ground Current vs. Input Voltage
Dropout Voltage (mV)
700
IGND (A)
600 500 400 300 200 100 0 0 50 100 150 200 250 300 350 400 450 500
85C 25C -40C
50 40 30 20 10 0 2 2.5 3 3.5
IOUT=500mA IOUT=0mA IOUT=10mA IOUT=50mA
4 4.5 5
IOUT=300mA IOUT=150mA
Output Current (mA)
VIN (V)
Quiescent Current vs. Temperature
100
Output Voltage vs. Temperature
1.203 1.202
Quiescent Current (A)
90
Output Voltage (V)
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
80 70 60 50 40 30 20 10 0
1.201 1.200 1.199 1.198 1.197 1.196 -40 -30 -20 -10
0
10 20
30
40
50 60
70 80
90 100
Temperature (C)
Temperature (C)
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500mA MicroPowerTM LDO Typical Characteristics
AAT3239
(Unless otherwise noted, VIN = 5V, TA = 25C) Initial Power Up Response Time CBYP=10nF
VEN (5V/div)
Turn-ON Time From Enable (VIN present) CBYP = 10nF
VEN = 5V/div
VOUT (1V/div)
400s/div
VOUT = 1V/div 5 s/div
VIN = 4V
Turn-ON Time From Enable (VIN present) CBYP = 10nF
VEN = 5V/div
Line Transient Response
6 5 4 3 2 3.04 3.03 3.02 3.01 3.00
VIN
V IN (V)
VOUT VOUT = 1V/div 5 s/div VIN = 4V
1 0 2.99 2.98
100s/div
Load Transient Response 100mA
1.90 300 2.00 1.90 1.80
Load Transient Response 300mA
750
VOUT
1.85 200
VOUT
600 450
I OUT (mA)
VOUT (V)
IOUT (mA)
VOUT (V)
1.80
100
1.70 1.60 1.50
300
1.75
0
IOUT
150 0
IOUT
1.70 -100
1.40
100s/div
100 s/div
6
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500mA MicroPowerTM LDO Typical Characteristics
AAT3239
(Unless otherwise noted, VIN = 5V, TA = 25C) Load Transient Response 500mA
2.1 2 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 1000 900 800 700 600 500 400 300 200 100 0
AAT3239 Self Noise COUT = 10F (ceramic)
Noise Amplitude (V/rtHz)
10
VOUT
I OUT (mA)
VOUT (V)
1 0.1 Band Power: 300Hz to 50kHz = 44.6Vrms/rtHz 100Hz to 100kHz = 56.3Vrms/rtHz 0.1 1 10 100 1000 10000
IOUT
0.01 0.001 0.01
100s/div
Frequency (kHz)
Over Current Protection
1200 1000 800 1.250 1.225 1.200 1.175 1.150 1.125 1.100 1.075 1.050 2.5 3.0
VIH and V IL vs. VIN
IOUT (mA)
600 400 200 0 -200
VIH
VIL
Time (20 ms/div)
3.5
4.0
4.5
5.0
5.5
VIN (V)
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500mA MicroPowerTM LDO Functional Block Diagram
AAT3239
IN
Active Feedback Control Over-Current Protection OverTemperature Protection + Error Amplifier -
OUT
EN
Fast Start Control
Voltage Reference
BYP
GND
Functional Description
The AAT3239 is intended for LDO regulator applications where output current load requirements range from no load to 500mA. Refer to the Thermal Considerations discussion in this section for details on maximum power dissipation. The advanced circuit design of the AAT3239 has been specifically optimized for very fast start-up and shutdown timing. This CMOS LDO has been tailored for superior transient response characteristics, a trait which is particularly important for applications that require fast power supply timing, such as GSM cellular telephone handsets. The high-speed turn-on capability of the AAT3239 is enabled through the implementation of a fast start control circuit, which accelerates the power up behavior of fundamental control and feedback circuits within the LDO regulator. Fast turn-off time response is achieved by an active output pull down circuit, which is enabled when the LDO regulator is placed in the shutdown mode. This active fast shutdown circuit has no adverse effect on normal device operation. The AAT3239 has very fast transient response characteristics, which is an important feature for 8
applications where fast line and load transient response is required. This rapid transient response behavior is accomplished through the implementation of an active error amplifier feedback control. This proprietary circuit design is unique to this MicroPowerTM LDO regulator. The LDO regulator output has been specifically optimized to function with low cost, low ESR ceramic capacitors. However, the design will allow for operation over a wide range of capacitor types. A bypass pin has been provided to allow the addition of an optional voltage reference bypass capacitor to reduce output self noise and increase power supply ripple rejection. Device self noise and PSRR will be improved by the addition of a small ceramic capacitor in this pin. However, increased values of CBYPASS may slow down the LDO regulator turn-on time. This LDO regulator has complete short circuit and thermal protection. The integral combination of these two internal protection circuits give the AAT3239 a comprehensive safety system to guard against extreme adverse operating conditions. Device power dissipation is limited to the package type and thermal dissipation properties. Refer to the thermal considerations discussion in the section for details on device operation at maximum output current loads.
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500mA MicroPowerTM LDO Applications Information
To assure the maximum possible performance is obtained from the AAT3239, please refer to the following application recommendations.
AAT3239
Bypass Capacitor and Low Noise Applications
A bypass capacitor pin is provided to enhance the low noise characteristics of the AAT3239 LDO regulator. The bypass capacitor is not necessary for operation of the AAT3239. However, for best device performance, a small ceramic capacitor should be placed between the Bypass pin (BYP) and the device ground pin (GND). The value of CBYP may range from 470pF to 10nF. For lowest noise and best possible power supply ripple rejection performance a 10nF capacitor should be used. To practically realize the highest power supply ripple rejection and lowest output noise performance, it is critical that the capacitor connection between the BYP pin and GND pin be direct and PCB traces should be as short as possible. Refer to the PCB Layout Recommendations section of this document for examples. There is a relationship between the bypass capacitor value and the LDO regulator turn on time and turn off time. In applications where fast device turn on time and turn off time is desired, the value of CBYP should be reduced. In applications where low noise performance and/ or ripple rejection are less of a concern, the bypass capacitor may be omitted. The fastest device turn on time will be realized when no bypass capacitor is used. DC leakage on this pin can affect the LDO regulator output noise and voltage regulation performance. For this reason, the use of a low leakage, high quality ceramic (NPO or COG type) or film capacitor is highly recommended.
Input Capacitor
Typically a 1F or larger capacitor is recommended for CIN in most applications. A CIN capacitor is not required for basic LDO regulator operation. However, if the AAT3239 is physically located more than 3 centimeters from an input power source, a CIN capacitor will be needed for stable operation. CIN should be located as close to the device VIN pin as practically possible. CIN values greater than 1F will offer superior input line transient response and will assist in maximizing the highest possible power supply ripple rejection. Ceramic, tantalum or aluminum electrolytic capacitors may be selected for CIN. There is no specific capacitor ESR requirement for CIN. However, for 500mA LDO regulator output operation, ceramic capacitors are recommended for CIN due to their inherent capability over tantalum capacitors to withstand input current surges from low impedance sources such as batteries in portable devices.
Output Capacitor
For proper load voltage regulation and operational stability, a capacitor is required between pins VOUT and GND. The COUT capacitor connection to the LDO regulator ground pin should be made as direct as practically possible for maximum device performance. The AAT3239 has been specifically designed to function with very low ESR ceramic capacitors. For best performance, ceramic capacitors are recommended. Typical output capacitor values for maximum output current conditions range from 1F to 10F. Applications utilizing the exceptionally low output noise and optimum power supply ripple rejection characteristics of the AAT3239 should use 2.2F or greater for COUT. If desired, COUT may be increased without limit. In low output current applications where output load is less then 10mA, the minimum value for COUT can be as low as 0.47F.
Capacitor Characteristics
Ceramic composition capacitors are highly recommended over all other types of capacitors for use with the AAT3239. Ceramic capacitors offer many advantages over their tantalum and aluminum electrolytic counterparts. A ceramic capacitor typically has very low ESR, is lower cost, has a smaller PCB footprint and is non-polarized. Line and load transient response of the LDO regulator is improved by using low ESR ceramic capacitors. Since ceramic capacitors are non-polarized, they are not prone to incorrect connection damage.
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500mA MicroPowerTM LDO Applications Information
Equivalent Series Resistance (ESR): ESR is a very important characteristic to consider when selecting a capacitor. ESR is the internal series resistance associated with a capacitor, which includes lead resistance, internal connections, size and area, material composition and ambient temperature. Typically capacitor ESR is measured in milliohms for ceramic capacitors and can range to more than several ohms for tantalum or aluminum electrolytic capacitors. Ceramic Capacitor Materials: Ceramic capacitors less than 0.1F are typically made from NPO or COG materials. NPO and COG materials are typically tight tolerance very stable over temperature. Larger capacitor values are typically composed of X7R, X5R, Z5U and Y5V dielectric materials. Large ceramic capacitors, typically greater then 2.2F are often available in the low cost Y5V and Z5U dielectrics. These two material types are not recommended for use with LDO regulators since the capacitor tolerance can vary more than 50% over the operating temperature range of the device. A 2.2F Y5V capacitor could be reduced to 1F over temperature, this could cause problems for circuit operation. X7R and X5R dielectrics are much more desirable. The temperature tolerance of X7R dielectric is better than 15%. Capacitor area is another contributor to ESR. Capacitors which are physically large in size will have a lower ESR when compared to a smaller sized capacitor of an equivalent material and capacitance value. These larger devices can improve circuit transient response when compared to an equal value capacitor in a smaller package size. Consult capacitor vendor data sheets carefully when selecting capacitors for LDO regulators. When the LDO regulator is in the shutdown mode, an internal 1.5k resistor is connected between VOUT and GND. This is intended to discharge COUT when the LDO regulator is disabled. The internal 1.5k has no adverse effect on device turn on time.
AAT3239
Short Circuit Protection
The AAT3239 contains an internal short circuit protection circuit that will trigger when the output load current exceeds the internal threshold limit. Under short circuit conditions the output of the LDO regulator will be current limited until the short circuit condition is removed from the output or LDO regulator package power dissipation exceeds the device thermal limit.
Thermal Protection
The AAT3239 has an internal thermal protection circuit which will turn on when the device die temperature exceeds 145C. The internal thermal protection circuit will actively turn off the LDO regulator output pass device to prevent the possibility of over temperature damage. The LDO regulator output will remain in a shutdown state until the internal die temperature falls back below the 145C trip point. The combination and interaction between the short circuit and thermal protection systems allow the LDO regulator to withstand indefinite short circuit conditions without sustaining permanent damage.
No-Load Stability
The AAT3239 is designed to maintain output voltage regulation and stability under operational no-load conditions. This is an important characteristic for applications where the output current may drop to zero.
Enable Function
The AAT3239 features an LDO regulator enable/ disable function. This pin (EN) is active high and is compatible with CMOS logic. To assure the LDO regulator will switch on, the EN turn on control level must be greater than 1.5 volts. The LDO regulator will go into the disable shutdown mode when the voltage on the EN pin falls below 0.6 volts. If the enable function is not needed in a specific application, it may be tied to VIN to keep the LDO regulator in a continuously on state. 10
Reverse Output to Input Voltage Conditions and Protection
Under normal operating conditions a parasitic diode exists between the output and input of the LDO regulator. The input voltage should always remain greater than the output load voltage maintaining a reverse bias on the internal parasitic diode. Conditions where VOUT might exceed VIN should be avoided since this would forward bias the internal parasitic diode and allow excessive current flow into the VOUT pin possibly damaging the LDO regulator.
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500mA MicroPowerTM LDO Applications Information
In applications where there is a possibility of VOUT exceeding VIN for brief amounts of time during normal operation, the use of a larger value CIN capacitor is highly recommended. A larger value of CIN with respect to COUT will effect a slower CIN decay rate during shutdown, thus preventing VOUT from exceeding VIN. In applications where there is a greater danger of VOUT exceeding VIN for extended periods of time, it is recommended to place a Schottky diode across VIN to VOUT (connecting the cathode to VIN and anode to VOUT). The Schottky diode forward voltage should be less than 0.45 volts. Constants for the AAT3239 are TJ(MAX), the maximum junction temperature for the device which is 125C and TJA = 90C/W, the package thermal resistance. Typically, maximum conditions are calculated at the maximum operating temperature of TA = 85C and under normal ambient conditions where TA = 25C. Given TA = 85C, the maximum package power dissipation is 444mW. At TA = 25C, the maximum package power dissipation is 1.11W. The maximum continuous output current for the AAT3239 is a function of the package power dissipation and the input to output voltage drop across the LDO regulator. Refer to the following simple equation: PD(MAX) VIN - VOUT
AAT3239
Thermal Considerations and High Output Current Applications
The AAT3239 is designed to deliver a continuous output load current of 500mA under normal operations. The short circuit current limit is greater than 500mA, typically active at 600mA.. The limiting characteristics for the maximum output load current safe operating area is essentially package power dissipation, the internal preset thermal limit of the device, and the input-to-output voltage drop across the AAT3239. In order to obtain high operating currents, careful device layout and circuit operating conditions need to be taken into account. The following discussions will assume the LDO regulator is mounted on a printed circuit board utilizing the minimum recommended footprint as stated in the layout considerations section of the document. At any given ambient temperature (TA) the maximum package power dissipation can be determined by the following equation: TJ(MAX) - TA JA
IOUT(MAX) <
For example, if VIN = 4.2V, VOUT = 1.8V and TA = 25C, IOUT(MAX) < 463mA. If the output load current were to exceed 463mA or if the ambient temperature were to increase, the internal die temperature will increase. If the condition remained constant, the LDO regulator thermal protection circuit will activate. To figure what the maximum output current would be for a given output voltage, refer to the following equation. This calculation accounts for the total power dissipation of the LDO Regulator, including that caused by ground current. PD(MAX) = (VIN - VOUT)IOUT + (VIN x IGND)
This formula can be solved for Iout to determine the maximum output current. PD(MAX) - (VIN x IGND) VIN - VOUT
PD(MAX) =
IOUT =
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500mA MicroPowerTM LDO
The following is an example for an AAT3239 set for a 1.5 volt output: From the discussion above, PD(MAX) was determined to equal 1.11W at TA = 25C. VOUT = 1.5V VIN = 4.2V IGND = 125A IOUT = 1.11W - (4.2V x 125A) 4.2 - 1.5 continuous input level for VOUT = 1.5V at 500mA for TA = 25C. To maintain this high input voltage and output current level, the LDO regulator must be operated in a duty cycled mode. Refer to the following calculation for duty cycle operation: PD(MAX) is assumed to be 1.1W IGND = 125A IOUT = 500mA VIN = 4.2V VOUT = 1.5V %DC = Thus, the AAT3239 can sustain a constant 1.5V output at a 411mA load current at an ambient temperature of 25C. Higher input to output voltage differentials can be obtained with the AAT3239, while maintaining device functions within the thermal safe operating area. To accomplish this, the device thermal resistance must be reduced by increasing the heat sink area or by operating the LDO regulator in a duty cycled mode. For example, an application requires VIN = 4.2V while VOUT = 1.5V at a 500mA load and TA = 25C. VIN is greater than 3.7V, which is the maximum safe Device Duty Cycle vs. VDROP VOUT = 1.5V @ 25C
3.5 3.5
AAT3239
IOUT(MAX) = 411mA
100(PD(MAX)) (VIN - VOUT)IOUT + VIN x IGND 100(1.11W) (4.2V - 1.5V)500mA + 4.2V x 125A
%DC =
%DC = 82% For a 500mA output current and a 2.7 volt drop across the AAT3239 at an ambient temperature of 25C, the maximum on time duty cycle for the device would be 82%. The following family of curves show the safe operating area for duty cycled operation from ambient room temperature to the maximum operating level. Device Duty Cycle vs. VDROP VOUT = 1.5V @ 85C
Voltage Drop (V)
2.5 2 1.5 1 0.5 0 0 10 20 30
700mA 600mA 500mA 400mA
Voltage Drop (V)
3
3 2.5 2 1.5 1 0.5 0 0 10 20 30 40 50
450mA 400mA 350mA 300mA
60 70 80 90 100
40
50
60
70
80
90
100
Duty Cycle (%)
Duty Cycle (%)
12
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500mA MicroPowerTM LDO
Evaluation Board Layout
The AAT3239 evaluation layout follows the recommend printed circuit board layout procedures and can be used as an example for good application layouts. Note: Board layout shown is not to scale.
AAT3239
Figure 3: Evaluation board component side layout
Figure 4: Evaluation board solder side layout
Figure 5: Evaluation board top side silk screen layout / assembly drawing
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500mA MicroPowerTM LDO Ordering Information
Output Voltage 1.5V 1.85V 3.3V
Note 1: XYY = assembly and date code.
AAT3239
Package TSOPJW-8 TSOPJW-8 TSOPJW-8
Marking1 JVXYY JWXYY MAXYY
Part Number (Tape and Reel) AAT3239ITS-1.5-T1 AAT3239ITS-1.85-T1 AAT3239ITS-3.3-T1
Package Information
TSOPJW-8
0.325 0.075
2.40 0.10
0.65 BSC 0.65 BSC 0.65 BSC
2.85 0.20
7 3.025 0.075
0.9625 0.0375 1.0175 0.0925
0.04 REF
0.055 0.045
0.010
0.15 0.05
0.45 0.15 2.75 0.25
All dimensions in millimeters.
AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. AnalogicTech warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with AnalogicTech's standard warranty. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed.
Advanced Analogic Technologies, Inc.
830 E. Arques Avenue, Sunnyvale, CA 94085 Phone (408) 737-4600 Fax (408) 737-4611 14
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