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19-3121; Rev 0; 1/04
KIT ATION EVALU BLE AVAILA
Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN
General Description
The MAX8559 dual, low-noise, low-dropout (LDO) linear regulator operates from a 2.5V to 6.5V input voltage and delivers at least 300mA of continuous output current. It offers low output noise and low dropout of only 60mV at 100mA. Typical output noise for this device is 32VRMS, and PSRR is 70dB at 10kHz. Designed with an internal P-channel MOSFET pass transistor, the MAX8559 maintains a low 115A supply current per LDO, independent of the load current and dropout voltage. Other features include short-circuit protection and thermal-shutdown protection. The MAX8559 includes two independent logic-controlled shutdown inputs and is capable of operating without a bypass capacitor to further reduce total solution size. The MAX8559 is available in a miniature 8-bump UCSP (2mm x 1mm) or 8-pin TDFN (3mm x 3mm) package.
Features
Two Low-Dropout-Voltage Regulators Low 32VRMS Output Noise 300mA Output Current for Each LDO 70dB PSRR at 10kHz Independent Shutdown Controls Low 60mV Dropout at 100mA Load 115A Operating Supply Current per LDO 1.5V to 3.3V Factory-Preset Output Small Ceramic Output Capacitors
MAX8559
Output Current Limit Thermal-Overload and Short-Circuit Protection 1.95W Power-Dissipation Capability (TDFN) 2mm2 Footprint (UCSP)
Applications
Cellular and Cordless Phones PDAs and Palmtop Computers Notebook Computers Digital Cameras PCMCIA Cards Wireless LAN Cards Hand-Held Instruments
PART MAX8559EBAxy* MAX8559ETAxy*
Ordering Information
TEMP RANGE -40C to +85C -40C to +85C PIN-PACKAGE 8 UCSP (B8-1) 8 TDFN-EP**
*xy = Output voltage code (see the Output Voltage Selector Guide). **EP = Exposed pad. Future product--contact factory for availability.
Typical Operating Circuit
OUTA TOP VIEW
Pin Configurations
GND OUTB
INPUT 2.5V TO 6.5V 2.2F min
INA INB
OUTA
1.5V TO 3.3V 2.2F/150mA 4.7F/300mA 1.5V TO 3.3V 2.2F/150mA 4.7F/300mA
8
BP
7
6
5
MAX8559ETA
ON OFF ON OFF
SHDNA
MAX8559
OUTB
1 INA
2 SHDNA
3 SHDNB
4 INB
SHDNB GND BP 0.01F (OPTIONAL)
TDFN 3mm x 3mm
Pin Configurations continued at end of data sheet.
Output Voltage Selector Guide appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN MAX8559
ABSOLUTE MAXIMUM RATINGS
INA, INB, SHDNA, SHDNB, BP to GND ...................-0.3V to +7V INA to INB..............................................................-0.3V to +0.3V OUTA, OUTB to GND ..................................-0.3V to (VIN + 0.3V) Output Short-Circuit Duration.....................................Continuous Continuous Power Dissipation (TA = +70C) 8-Bump UCSP (derate 4.7mW/C above +70C)..........379mW 8-Pin TDFN (derate 24.4mW/C above +70C) ..........1951mW Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C 8-Pin TDFN Lead Temperature (soldering, 10s)..............+300C 8-Bump UCSP Solder Profile...........................................(Note 1)
Note 1: For UCSP solder profile information, please refer to the application note APP_1891 on the Maxim website, www.maxim-ic.com.
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN = 3.8V, SHDNA = SHDNB = IN_, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER Input Voltage Undervoltage-Lockout Threshold SYMBOL VIN VUVLO VIN rising, hysteresis is 40mV (typ) TA = +25C, IOUTA = IOUTB = 1mA Output Voltage Accuracy TA = -40C to +85C, IOUTA = IOUTB = 1mA TA = -40C to +85C, IOUTA or IOUTB = 0.1mA to 300mA Maximum Output Current Output Current Limit Ground Current Dropout Voltage (Note 2) Line Regulation IOUT_ ILIM_ No load IQ VOUT_ VIN_ VLNR No load, one LDO shutdown IOUTA = IOUTB = 100mA IOUT_ = 1mA IOUT_ = 100mA VIN_ = (VOUT_ + 0.1V) to 6.5V, IOUT_ = 1mA 100Hz to 100kHz, COUT_ = 10F, IOUT_ = 1mA, CBP = 0.01F 100Hz to 100kHz, COUT_ = 10F, IOUT_ = 1mA, CBP = not installed VIN_ = VOUT_ + 1V, 10kHz CBP = 0.01F, COUT_ = 2.2F, 100kHz IOUT_ = 50mA -0.15 CONDITIONS MIN 2.5 2.15 -1 -2 -3 300 310 550 180 115 220 0.6 60 0 32 VRMS 254 70 dB 54 120 +0.15 mV %/ V 920 290 A 2.35 TYP MAX 6.5 2.45 +1 +2 +3 mA mA % UNITS V V
Output Voltage Noise
Power-Supply Ripple Rejection
PSRR
SHUTDOWN Shutdown Supply Current SHDN Input Threshold ISHDN VIH VIL SHDN_ = 0V Input high voltage Input low voltage TA = +25C TA = -40C to +85C 1.6 0.4 0.01 0.1 1 A V
2
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Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 3.8V, SHDNA = SHDNB = IN_, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER SHDN Input Bias Current VOUT_ Discharge Resistance in Shutdown THERMAL PROTECTION Thermal-Shutdown Temperature Thermal-Shutdown Hysteresis TSHDN TSHDN TJ rising +160 10 C C SYMBOL ISHDN SHDN_ = IN or GND SHDN_ = GND CONDITIONS TA = +25C TA = -40C to +85C MIN TYP 10 100 385 MAX 100 UNITS nA
MAX8559
Note 1: All units are 100% production tested at TA = +25C. Limits over the operating temperature range are guaranteed by design. Note 2: The dropout voltage is defined as VIN - VOUT when VOUT is 100mV below the nominal value of VOUT. Specification only applies when VOUT 2.5V.
Typical Operating Characteristics
(VOUTA = VOUTB = 2.85V, VINA = VINB = 3.8V, COUT = 2.2F (or 4.7F for 300mA), CBP = 0.01F, and CIN = 2.2F (or 4.7F for 300mA), unless otherwise noted.)
GROUND CURRENT vs. SUPPLY VOLTAGE
MAX8559 toc01
GROUND CURRENT vs. LOAD CURRENT
MAX8559 toc02
GROUND CURRENT vs. TEMPERATURE
225 200 GROUND CURRENT (A) 175 150 125 100 75 50 25 0 NO LOAD, BOTH OUTPUTS 100mA LOAD, BOTH OUTPUTS
MAX8559 toc03
300 250 GROUND CURRENT (A) 200 150 100 50 NO LOAD, BOTH OUTPUTS 100mA LOAD, BOTH OUTPUTS
225 200 GROUND CURRENT (A) 175 150 125 100 75 50 25 BOTH OUTPUTS LOADED
250
0 0 1 2 3 4 5 6 SUPPLY VOLTAGE (V)
0 0 50 100 150 200 250 300 LOAD CURRENT (mA)
-40
-15
10
35
60
85
TEMPERATURE (C)
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3
Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN MAX8559
Typical Operating Characteristics (continued)
(VOUTA = VOUTB = 2.85V, VINA = VINB = 3.8V, COUT = 2.2F (or 4.7F for 300mA), CBP = 0.01F, and CIN = 2.2F (or 4.7F for 300mA), unless otherwise noted.)
DROPOUT VOLTAGE vs. LOAD CURRENT
MAX8559 toc04
OUTPUT VOLTAGE ACCURACY vs. LOAD CURRENT
MAX8559 toc05
200 180 160 DROPOUT VOLTAGE (mV) 140 120 100 80 60 40 20 0 0 50 100 150 200 250
0 OUTPUT VOLTAGE ACCURACY (%) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7
300
0
50
100
150
200
250
300
LOAD CURRENT (mA)
LOAD CURRENT (mA)
OUTPUT VOLTAGE ACCURACY vs. TEMPERATURE
0.3 OUTPUT VOLTAGE ACCURACY (%) 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -40 -15 10 35 60 85 TEMPERATURE (C) 100mA LOAD, BOTH OUTPUTS PSRR (dB) 50 40 30 20 10 100mA LOAD, BOTH OUTPUTS
MAX8559 toc06
PSRR vs. FREQUENCY
70 60
MAX8559 toc07
0.4
80
IOUTA = 50mA 0 0.01 0.1 1 10 100 1000 FREQUENCY (kHz)
CHANNEL-TO-CHANNEL ISOLATION vs. FREQUENCY
MAX8559 toc08
OUTPUT-NOISE SPECTRAL DENSITY vs. FREQUENCY
RLOAD = 100 NOISE DENSITY (nV/Hz)
MAX8559 toc09
100 CHANNEL-TO-CHANNEL ISOLATION (dB) 90 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 IOUTA = 10mA
10,000
1000
100
10 1000 0.01 0.1 1 FREQUENCY (kHz) 10 100 FREQUENCY (kHz)
4
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Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN MAX8559
Typical Operating Characteristics (continued)
(VOUTA = VOUTB = 2.85V, VINA = VINB = 3.8V, COUT = 2.2F (or 4.7F for 300mA), CBP = 0.01F, and CIN = 2.2F (or 4.7F for 300mA), unless otherwise noted.)
OUTPUT NOISE (10Hz to 100kHz)
MAX8559 toc10
LINE TRANSIENT
MAX8559 toc11
VINA
4.5V 3.5V 1V/div
VOUT_
500V/div VOUTA 10mV/div AC-COUPLED
IOUTA = 100mA 1ms/div 40s/div
LOAD TRANSIENT
MAX8559 toc12
LOAD TRANSIENT NEAR DROPOUT
MAX8559 toc13
VOUTA
20mV/div AC-COUPLED
VOUTA
20mV/div AC-COUPLED
IOUTA
100mA/div 0
IOUTA
100mA/div 0
10s/div
10s/div
SHUTDOWN RESPONSE
MAX8559 toc14
VOUTA 1V/div
0
VSHDNA
1V/div 0
1ms/div
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5
Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN MAX8559
Pin Description
PIN TDFN 1 UCSP A1 INA LDO A Regulator Input. Connect to INB. Input voltage can range from 2.5V to 6.5V. Bypass INA with a ceramic capacitor to GND (see the Capacitor Selection and Regulator Stability section). Shutdown A Input. A logic-low on SHDNA shuts down regulator A. If SHDNA and SHDNB are both low, both regulators and the internal reference are off and the supply current is reduced to 10nA (typ). If either SHDNA or SHDNB is a logic high, the internal reference is on. Connect SHDNA to INA for always-on operation of regulator A. Shutdown B Input. A logic-low on SHDNB shuts down regulator B. If SHDNA and SHDNB are both low, both regulators and the internal reference are off and the supply current is reduced to 10nA (typ). If either SHDNA or SHDNB is a logic high, the internal reference is on. Connect SHDNB to INB for always-on operation of regulator B. LDO B Regulator Input. Connect to INA. Input voltage can range from 2.5V to 6.5V. Bypass INB with a ceramic capacitor to GND (see the Capacitor Selection and Regulator Stability section). Regulator B Output. OUTB can source up to 300mA continuous current. Bypass OUTB with a ceramic capacitor to GND (see the Capacitor Selection and Regulator Stability section). During shutdown, OUTB is internally discharged to GND through a 385 resistor. Ground Reference Noise Bypass. Bypass BP with a low-leakage 0.01F ceramic capacitor for reduced noise at both outputs. Regulator A Output. OUTA can source up to 300mA continuous current. Bypass OUTA with a ceramic capacitor to GND (see the Capacitor Selection and Regulator Stability section). During shutdown, OUTB is internally discharged to GND through a 385 resistor. Connect to ground plane. EP also functions as a heatsink. Solder to the circuit-board ground plane to maximize thermal dissipation. NAME FUNCTION
2
A2
SHDNA
3
A3
SHDNB
4
A4
INB
5 6 7
B4 B3 B2
OUTB GND BP
8
B1
OUTA Exposed Paddle
EP
--
Detailed Description
The MAX8559 is a dual, low-noise, low-dropout, low-quiescent-current linear regulator designed primarily for battery-powered applications. The regulators are available with preset 1.5V to 3.3V output voltages. These outputs can supply loads up to 300mA with a 4.7F output capacitor, or up to 150mA with a 2.2F output capacitor. As illustrated in the Functional Diagram, the MAX8559 consists of a 1.25V reference, error amplifiers, P-channel pass transistors, internal feedback voltage-dividers, and autodischarge circuitry.
lower, allowing more current to pass to the output and increasing the output voltage. If the feedback voltage is too high, the pass-transistor gate is pulled up, allowing less current to pass to the output. The output voltage is fed back through an internal resistor voltage-divider connected to OUT_.
Internal P-Channel Pass Transistor
The MAX8559 features two 0.6 P-channel MOSFET pass transistors. A P-channel MOSFET provides several advantages over similar designs using PNP pass transistors, including longer battery life. It requires no base drive, reducing quiescent current considerably. PNP-based regulators waste considerable current in dropout when the pass transistor saturates, and they also use high base-drive currents under large loads. The MAX8559 does not suffer from these problems, and with both outputs on it only consumes 180A of
Feedback Control Loop
The 1.25V bandgap reference is connected to the error amplifier's inverting input. The error amplifier compares this reference with the feedback voltage and amplifies the difference. If the feedback voltage is lower than the reference voltage, the pass-transistor gate is pulled
6
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Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN
quiescent current at no load and 220A with 100mA load current on both outputs (see the Typical Operating Characteristics). A PNP-based regulator has a high dropout voltage that is independent of the load. A Pchannel MOSFET's dropout voltage is proportional to load current, providing for low dropout voltage at heavy loads and extremely low dropout at lighter loads. The maximum power dissipation allowed is: PMAX = (TJ - TA) / (RJB + RBA) where TJ - TA is the temperature difference between the MAX8559 die junction and the surrounding air, RJB (RJC) is the thermal resistance of the package, and RBA is the thermal resistance through the printed circuit board, copper traces, and other materials to the surrounding air. The exposed paddle of the TDFN package performs the function of channeling heat away. Connect the exposed paddle to the board ground plane.
MAX8559
Current Limit
The MAX8559 contains two independent current limiters, one for each regulator output, monitoring and controlling the pass transistor's gate voltage and limiting the output current to 310mA (min). The outputs can be shorted to ground continuously without damaging the part.
Applications Information
Capacitor Selection and Regulator Stability
For load currents up to 150mA, use a single 2.2F capacitor to bypass both inputs of the MAX8559 and a 2.2F capacitor to bypass each output. Larger inputcapacitor values and lower ESRs provide better supplynoise rejection and line-transient response. To reduce output noise and improve load-transient voltage dips, use larger output capacitors up to 10F. For stable operation over the full temperature range with load currents up to 300mA, input and output capacitors should be a minimum of 4.7F. Note that some ceramic dielectrics exhibit large capacitance and ESR variation with temperature. With dielectrics such as Z5U and Y5V, it may be necessary to use 4.7F or more for up to 150mA load current to ensure stability at temperatures below -10C. With X7R or X5R dielectrics, 2.2F is sufficient at all operating temperatures. These regulators are optimized for ceramic capacitors. Tantalum capacitors are not recommended. Use a 0.01F bypass capacitor at BP for low-output voltage noise. Increasing the capacitance slightly decreases the output noise, but increases the startup time.
Low-Noise Operation
An external 0.01F bypass capacitor at BP in conjunction with an internal resistor creates a lowpass filter. The MAX8559 exhibits less than 32VRMS of output voltage noise with CBP = 0.01F and COUT = 10F. The Typical Operating Characteristics show a graph of Output-Noise Spectral Density with these values. If output noise is not critical, the BP capacitor can be removed to reduce total solution size and cost.
Shutdown
The MAX8559 has independent shutdown control inputs (SHDNA and SHDNB). Drive SHDNA low to shut down OUTA. Drive SHNDB low to shut down OUTB. Drive both SHDNA and SHDNB low to shut down the entire chip, reducing supply current to 0.01A. Connect SHDNA or SHDNB to a logic high or IN_ for always-on operation of the corresponding LDO. Each LDO output is internally discharged to ground through a 385 resistor in shutdown mode.
Thermal-Overload Protection
Thermal-overload protection limits total power dissipation in the MAX8559. Each regulator has its own independent thermal detector. When one of the regulators' junction temperature exceeds TJ = +160C, that regulator's pass transistor is turned off allowing the IC to cool. The thermal sensor turns the pass transistor on again after the IC's junction temperature cools by 10C. This results in a pulsed output during continuous thermal-overload conditions.
PSRR and Operation from Sources Other than Batteries
The MAX8559 is designed to deliver low-dropout voltages and low quiescent currents in battery-powered systems. Power-supply rejection ratio is 70dB at 10kHz (see Power-Supply Rejection Ratio vs. Frequency in the Typical Operating Characteristics). When operating from sources other than batteries, improved supply-noise rejection and transient response is achieved by increasing the values of the input and output bypass capacitors and through passive RC or CRC filtering techniques.
Operating Region and Power Dissipation
The MAX8559 maximum power dissipation depends on the thermal resistance of the case and the circuit board, the temperature difference between the die junction and ambient air, and the rate of airflow. The power dissipation across the device is P = IOUT x (VIN - VOUT).
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7
Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN MAX8559
Load-Transient Considerations
The MAX8559 load-transient response graphs (see the Typical Operating Characteristics) show two components of the output response: a DC shift in the output voltage due to the different load currents and the transient response. Typical overshoot for step changes in the load current from 10A to 100mA is 15mV. Increase the output capacitor's value and decrease its ESR to attenuate transient spikes. where: VIN(MAX) = maximum input voltage PMAX = maximum power dissipation of the package (379mW for the UCSP and 1951mW for the TDFN) VOUTA = output voltage of OUTA VOUTB = output voltage of OUTB IOUTA = maximum output current of OUTA IOUTB = maximum output current of OUTB P should be less than PMAX. If P is greater than PMAX, consider the TDFN.
Dropout Voltage
A regulator's minimum input-output voltage differential (or dropout voltage) determines the lowest usable supply voltage. In battery-powered systems, this determines the useful end-of-life battery voltage. Because the MAX8559 uses an internal P-channel MOSFET pass transistor, its dropout voltage is a function of the drainto-source on-resistance (RDS(ON)) multiplied by the load current (see the Typical Operating Characteristics).
Layout Guidelines
Due to the low output noise and tight output voltage accuracy required by most applications, careful PC board layout is required. An evaluation kit (MAX8559EVKIT) is available to speed design. Follow these guidelines for good PC board layout: * Keep the input and output paths short and wide if possible, especially at the ground terminals. * Use thick copper PC boards (2oz vs. 1oz) to enhance thermal capabilities. * Place output, input, and bypass capacitors as close as possible to the IC. * Ensure traces to BP and the BP capacitor are away from noisy sources to ensure low output voltage noise.
Calculating the Maximum Output Power in UCSP
The maximum output power of the MAX8559 is limited by the maximum power dissipation of the package. By calculating the power dissipation of the package as a function of the input voltage, output voltages, and output currents, the maximum input voltage can be obtained. The maximum power dissipation should not exceed the package's maximum power rating. P = (VIN(MAX) - VOUTA) x IOUTA + (VIN(MAX) - VOUTB) x IOUTB
8
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Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN
Functional Diagram
MAX8559
INA
MAX8559
SHDNA SHDNB SHUTDOWN AND POWER-ON CONTROL ERROR AMP MOS DRIVER WITH ILIMIT P
OUTA
THERMAL SENSOR
1.25V REF
LDOA SHDNA
GND BP
INB LDOB OUTB
_______________________________________________________________________________________
9
Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN MAX8559
Output Voltage Selector Guide
PART MAX8559EBA8A MAX8559EBA2G MAX8559EBAP2 MAX8559EBAK2 MAX8559EBAJJ MAX8559EBAJG MAX8559EBAII MAX8559EBAG2 MAX8559EBAGJ MAX8559EBAGG MAX8559ETA8A MAX8559ETA2G MAX8559ETAP2 MAX8559ETAK2 MAX8559ETAKG MAX8559ETAJ2 MAX8559ETAJJ MAX8559ETAJG MAX8559ETAII MAX8559ETAG2 MAX8559ETAGG VOUTA (x) 1.50 1.80 2.50 2.80 2.85 2.85 2.90 3.00 3.00 3.00 1.50 1.80 2.50 2.80 2.80 2.85 2.85 2.85 2.90 3.00 3.00 VOUTB (y) 3.30 3.00 1.80 1.80 2.85 3.00 2.90 1.80 2.85 3.00 3.30 3.00 1.80 1.80 3.00 1.80 2.85 3.00 2.90 1.80 3.00 TOP MARK AAE AAG AAH AAC AAI AAB AAJ
OUTA B1 A1 A2 A3 A4 INA
Pin Configurations (continued)
TOP VIEW SHDNA SHDNB INB B4 OUTB
AAF
MAX8559EBA
B2 BP B3 GND
AAD AAA AIM ALK ALL ALM AIN ALD AIG ALN AIF ALO AIE
UCSP (2.06mm x 1.03mm)
Chip Information
TRANSISTOR COUNT: 634 PROCESS: BiCMOS
Note: Standard voltage options, shown in bold, are available. Contact the factory for other output voltages between 1.5V and 3.3V. Minimum order quantity is 15,000 units.
10
______________________________________________________________________________________
Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.)
UCSP 4x2.EPS
MAX8559
PACKAGE OUTLINE, 4x2 UCSP 21-0156 A
1 1
______________________________________________________________________________________
11
Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN MAX8559
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.)
6, 8, &10L, DFN THIN.EPS
1 2
L D A A2
PIN 1 ID
D2
1
N
1
b
PIN 1 INDEX AREA
C0.35 [(N/2)-1] x e REF. e
E
DETAIL A
E2
A1
k
C L
C L
L e A e
L
SEMICONDUCTOR
PROPRIETARY INFORMATION TITLE:
DALLAS
PACKAGE OUTLINE, 6, 8 & 10L, TDFN, EXPOSED PAD, 3x3x0.80 mm
NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY
APPROVAL DOCUMENT CONTROL NO. REV.
21-0137
D
COMMON DIMENSIONS SYMBOL A D E A1 L k A2 MIN. 0.70 2.90 2.90 0.00 0.20 MAX. 0.80 3.10 3.10 0.05 0.40
0.25 MIN. 0.20 REF.
PACKAGE VARIATIONS PKG. CODE T633-1 T833-1 T1033-1 N 6 8 10 D2 1.500.10 1.500.10 1.500.10 E2 2.300.10 2.300.10 2.300.10 e 0.95 BSC 0.65 BSC 0.50 BSC JEDEC SPEC MO229 / WEEA MO229 / WEEC MO229 / WEED-3 b 0.400.05 0.300.05 0.250.05 [(N/2)-1] x e 1.90 REF 1.95 REF 2.00 REF
SEMICONDUCTOR
PROPRIETARY INFORMATION TITLE:
DALLAS
PACKAGE OUTLINE, 6, 8 & 10L, TDFN, EXPOSED PAD, 3x3x0.80 mm
APPROVAL DOCUMENT CONTROL NO. REV.
21-0137
D
2 2
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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