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SEAWARD ELECTRONICS
150mA CMOS LDO Regulator (Preliminary)
Features
SE5166
Description
The SE5166 series of fixed output low dropout linear regulators are designed for portable battery powered applications, which require low dropout voltage and low ground current. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, and resistors for setting output voltage, and current limit and temperature limit protection circuits. The SE5166 has been designed to be used with low cost capacitors and requires a minimum output capacitor of 1.0F. Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0, and 3.3V.
Typical Low Dropout Voltage of 203mV at 75mA. Guaranteed 150mA output over the full operating temperature range. Excellent Line and Load Regulation. High Accuracy Output Voltage of 2%. Typical Low Ground Current at 1mA Current Limiting and Thermal Protection. Standard SOT-23-3L, TO-92, and SOT-323-3L Package.
Applications
Cellphones. Wireless LAN's. Hand-Held Instrumentation. Portable Video Game Devices. Digital Cameras. Marking Information SE5166AHN YYWW SE5166BHN YYWW SE5166CHN YYWW SE5166DHN YYWW SE5166EHN YYWW SE5166FHN YYWW SE5166AHG YYWW SE5166BHG YYWW SE5166CHG YYWW SE5166DHG YYWW SE5166EHG YYWW SE5166FHG YYWW
Ordering/Marking Information
Package Ordering Information 3.3V 2.8V 2.5V 1.8V 1.5V 3.0V 3.3V 2.8V 2.5V 1.8V 1.5V 3.0V SE5166AHN SE5166BHN SE5166CHN SE5166DHN SE5166EHN SE5166FHN SE5166AHG SE5166BHG SE5166CHG SE5166DHG SE5166EHG SE5166FHG
YY: year code WW: week code.
Preliminary and all contents are subject to change without prior notice. (c) Seaward Electronics, Inc., 2004. * www.seawardinc.com * Page 1
SEAWARD ELECTRONICS
150mA CMOS LDO Regulator (Preliminary)
SE5166
Ordering/Marking Information (Continued)
Package Ordering Information 3.3V 2.8V 2.5V 1.8V 1.5V 3.0V 3.3V 2.8V 2.5V 1.8V 1.5V 3.0V 3.3V 2.8V 2.5V 1.8V 1.5V 3.0V 3.3V 2.8V 2.5V 1.8V 1.5V 3.0V SE5166ALN SE5166BLN SE5166CLN SE5166DLN SE5166ELN SE5166FLN SE5166ALG SE5166BLG SE5166CLG SE5166DLG SE5166ELG SE5166FLG SE5166APN SE5166BPN SE5166CPN SE5166DPN SE5166EPN SE5166FPN SE5166APG SE5166BPG SE5166CPG SE5166DPG SE5166EPG SE5166FPG 166AN_ 166BN_ 166CN_ 166DN_ 166EN_ 166FN_ 166AG_ 166BG_ 166CG_ 166DG_ 166EG_ 166FG_ 166AN_ 166BN_ 166CN_ 166DN_ 166EN_ 166FN_ 166AG_ 166BG_ 166CG_ 166DG_ 166EG_ 166FG_
Starting with 1, a bar on top of 1 is for production year 2001, and underlined 1 is for year 2002. The next character is marked on top for 2003, and underlined for 2004. The naming pattern continues with consecutive characters for later years. The last character is the week code. (A-Z:
Marking Information
1-26, a-z: 27-52)
Preliminary and all contents are subject to change without prior notice. (c) Seaward Electronics, Inc., 2004. * www.seawardinc.com * Page 2
SEAWARD ELECTRONICS
150mA CMOS LDO Regulator (Preliminary)
Operating Ratings(2)
SE5166
Absolute Maximum Ratings(1)
Supply Input Voltage (VIN) .................. 0.7V to +6V Power Dissipation (PD) ........... Internally Limited
(3)
Supply Input Voltage (VIN) ............ +2.0V to +5.5V Junction Temperature (TJ) ............ 0C to +125C Package Thermal Resistance 160C/W (TO-92) 230C/W (SOT-23-3L) 250C/W (SOT-323-3L)
Junction Temperature (TJ) ........... ...0C to +125C Lead Temperature (soldering, 5 sec.) ........... 260C Storage Temperature (TS) ........... -40C to +150C
Electrical Characteristics
VIN = 5V; CIN = 2.2F; COUT = 2.2F; IOUT = 10mA; TJ = 25C; unless otherwise noted
Symbol
Parameter
Conditions SE5166 - 1.5V SE5166 - 1.8V SE5166 - 2.5V SE5166 - 2.8V SE5166 - 3.0V SE5166 - 3.3V VIN = VOUT + 1V to 5.5V, IOUT = 10mA VIN = 5V; IOUT = 10mA to 150mA Note 4
Min 1.470 1.764 2.450 2.744 2.940 3.234 ---
Typ 1.5 1.8 2.5 2.8 3.0 3.3 1 1
Max 1.530 1.836 2.550 2.856 3.060 3.366 ---
Unit V V V V V % %
VOUT
Output Voltage Accuracy
VOUT VOUT VOUT/T
Line Regulation Load Regulation (5) Output Voltage Temperature Coefficient
--
0.79
--
mV/C
IOUT = 10mA VIN - VOUT Dropout Voltage
(6)
-------300
20 203 500 150 20 51 1 --
------2 -C dB mA mA mV
IOUT = 75mA IOUT = 150mA Thermal Protection Temperature Protection Hysterisys f = 120 Hz IOUT = 10mA
TPROTECTION PSRR IQ ILIMIT
Thermal Protection Ripple Rejection Quiescent Current Current Limit
Preliminary and all contents are subject to change without prior notice. (c) Seaward Electronics, Inc., 2004. * www.seawardinc.com * Page 3
SEAWARD ELECTRONICS
150mA CMOS LDO Regulator (Preliminary)
SE5166
Note 1: Exceeding the absolute maximum rating may damage the device. Note 2: The device is not guaranteed to function outside its operating rating. Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) = (TJ(MAX) - TA)/JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. See "Thermal Consideration" section for details Note 4: Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range. Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 0.1mA to 150mA. covered by the thermal regulation specification. Note 6: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. Changes in output voltage due to heating effects are
Typical Application
Preliminary and all contents are subject to change without prior notice. (c) Seaward Electronics, Inc., 2004. * www.seawardinc.com * Page 4
SEAWARD ELECTRONICS
150mA CMOS LDO Regulator (Preliminary)
Thermal Considerations
SE5166
Application Hints
Like any low dropout regulator, SE5166 requires external capacitors to ensure stability. ensure performance. The external capacitors must be carefully selected to
It is important that the thermal limit of the package is not exceeded. protection. to ground. The SE5166 has built-in thermal When the thermal limit is exceeded, The power dissipation for a given
the IC will enter protection, and VOUT will be pulled application can be calculated as following: The power dissipation (PD) is PD = IOUT * [VIN - VOUT] The thermal limit of the package is then limited to PD(MAX) = [TJ - TA]/JA where TJ is the junction temperature, TA is the ambient temperature, and JA is around 250C/W for SE5166. SE5166 is designed to enter thermal protection at 150C. For example, if TA is 25C then the maximum PD is limited to about 0.5W. In other words, if IOUT(MAX) = 150mA, then [VIN - VOUT] cannot exceed 3.33V.
Input Capacitor
An input capacitor of at least 2.2F is required. Ceramic or Tantalum can be used. The value can be increase without upper limit.
Output Capacitor
An output capacitor is required for stability. It must be placed no more than 1 cm away from the VOUT pin, and connected directly between VOUT and GND pins. The minimum value is 2.2F but may be increase without limit.
Preliminary and all contents are subject to change without prior notice. (c) Seaward Electronics, Inc., 2004. * www.seawardinc.com * Page 5
SEAWARD ELECTRONICS
150mA CMOS LDO Regulator (Preliminary)
SE5166
OUTLINE DRAWING SOT-23-3L (SC-59)
C J B H
DIM A B C D E F G H J K L
N
DIMENSIONS INCHES MM MIN MAX MIN MAX
0.110 0.047 0.083 0.035 0.070 0.018 0.015 0.0005 0.034 0.003 0.120 0.055 0.104 0.040 0.080 0.024 0.020 0.004 0.040 0.007 0.027 2.80 1.20 2.10 0.89 1.78 0.45 0.37 0.013 0.887 0.085 3.04 1.40 2.64 1.03 2.05 0.60 0.51 0.10 1.02 0.18 0.69
D A E
F
G
K
L
OUTLINE DRAWING TO-92
A
B D
DIM A B E F G H J K
N
DIMENSIONS INCHES MM MIN MAX MIN MAX
0.175 0.170 0.500 0.016 0.045 0.095 0.080 0.125 0.205 0.210 0.610 0.021 0.055 0.105 0.105 0.165 4.445 4.318 12.70 0.407 1.143 2.413 2.032 3.175 5.207 5.334 15.50 0.533 1.397 2.667 2.667 4.191
E
G F H K
J
Preliminary and all contents are subject to change without prior notice. (c) Seaward Electronics, Inc., 2004. * www.seawardinc.com * Page 6
SEAWARD ELECTRONICS
150mA CMOS LDO Regulator (Preliminary)
SE5166
OUTLINE DRAWING SOT-323-3L
Customer Support
Seaward Electronics Incorporated - China Rm 1605, Building 1, International Pioneering Park, #1 Shangdi Xinxi Rd Haidian District, Beijing 100085, China Tel: 86-10-8289-5700/01/05 Fax: 86-10-8289-5706 Seaward Electronics Corporation - Taiwan 2F, #181, Sec. 3, Minquan East Rd, Taipei, Taiwan R.O.C Tel: 886-2-2712-0307 Fax: 886-2-2712-0191 Seaward Electronics Incorporated - North America 49 Showers Dr. J126 Mountain View, CA 94040, USA Tel: 1-408-821-6600 Last Updated - 3/9/2005
Preliminary and all contents are subject to change without prior notice. (c) Seaward Electronics, Inc., 2004. * www.seawardinc.com * Page 7

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