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| SI9181 Datasheet, PDF (2/10 Pages) Vishay Siliconix – Micropower 350-mA CMOS LDO Regulator With Error Flag/Power-On-Reset | |||
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Si9181
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 V
SD Input Voltage, VSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.3 V to VIN
Output Current, IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . Short Circuit Protected
Output Voltage, VOUT . . . . . . . . . . . . . . . . . . . . . . . . â0.3 V to VO(nom) + 0.3 V
Maximum Junction Temperature, TJ(max) . . . . . . . . . . . . . . . . . . . . . . . 150_C
Storage Temperature, TSTG . . . . . . . . . . . . . . . . . . . . . . . . . . â55_C to 150_C
ESD (Human Body Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
Power Dissipation (Package)a
8-Pin TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 833 mW
Thermal Impedance (QJA)
8-Pin TSSOPb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120_C/W
Notes
a. Device mounted with all leads soldered or welded to PC board.
b. Derate 8.3 mW/_C above TA = 25_C
Stresses beyond those listed under âAbsolute Maximum Ratingsâ 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.
RECOMMENDED OPERATING RANGE
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V to 6 V
Output Voltage, VOUT (Adjustable Version) . . . . . . . . . . . . . . . . . . 1.5 V to 5 V
SD Input Voltage, VSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to VIN
Operating Ambient Temperature, TA . . . . . . . . . . . . . . . . . . . . â40_C to 85_C
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . â40_C to 125_C
CIN = 2.2 mF, COUT = 2.2 mF (ceramic, X5R or X7R type) , CNOISE = 0.1 mF (ceramic)
COUTRange = 1 mF to 10 mF ("10%, x5R or x7R type)
CIN w COUT
SPECIFICATIONS
Parameter
Symbol
Test Conditions
Unless Otherwise Specified
VIN = VOUT(nom) + 1 V, IOUT = 1 mA
CIN = 2.2 mF, COUT = 2.2 mF, VSD = 1.5 V
Limits
â40 to 85_C
Tempa Minb Typc Maxb
Unit
Output Voltage Range
Output Voltage Accuracy
(Fixed Versions)
VOUT
Adjustable Version
1 mA v IOUT v 350 mA
Feedback Voltage (ADJ Version)
VADJ
Line Regulation
(Except 5-V Version)
Line Regulation (5-V Version)
Line Regulation (ADJ Version)
Dropout Voltaged
(@VOUT w 2 V)
Dropout Voltaged
(@VOUT t 2 V, VIN w 2 V)
DVOUT 100
VIN VOUT(nom)
From VIN = VOUT(nom) + 1 V
to VOUT(nom) + 2 V
From VIN = 5.5 V to 6 V
VOUT = 1.5 V, From VIN = 2.5 V to 3.5 V
VOUT = 5 V, From VIN = 5.5 V to 6 V
IOUT = 10 mA
IOUT = 200 mA
VIN â VOUT
IOUT = 350 mA
IOUT = 200 mA
IOUT = 350 mA
IOUT = 0 mA
Ground Pin Current
IGND
IOUT = 200 mA
IOUT = 350 mA
www.vishay.com
2
Full
Room
Full
Room
Full
Full
Full
Full
Full
Room
Room
Room
Full
Room
Room
Full
Room
Room
Full
Room
Full
1.5
â1.5
â2.5
1.191
1.179
â0.18
â0.18
â0.18
â0.18
1.215
5
85
150
170
290
150
1000
1500
5
1.5
2.5
1.239
1.251
V
% VO(nom)
V
0.18
0.18
%/V
0.18
0.18
20
180
400
550
mV
250
425
575
1500
mA
2800
Document Number: 71119
S-40694âRev. D, 19-Apr-04
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