參數資料
型號： SI91822DH-20-T1
廠商： VISHAY SILICONIX
元件分類： 固定正電壓單路輸出LDO穩(wěn)壓器
英文描述： 2 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8
封裝： MSOP-8
文件頁數： 3/10頁
文件大?。?/td> 126K
代理商： SI91822DH-20-T1
Si91822
Vishay Siliconix
www.vishay.com
2
Document Number: 71671
S-41221—Rev. D, 28-Jun-04
ABSOLUTE MAXIMUM RATINGS
Input Voltage, VIN
6.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SD Input Voltage, VSD
0.3 V to VIN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Current, IOUT
300 mA Continuous, Short Circuit Protected
. . . . . . . .
Output Voltage, VOUT
0.3 V to VO(nom) + 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature, TJ(max)
150_C
. . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature, TSTG
55_C to 150_C
. . . . . . . . . . . . . . . . . . . . . . . . . .
ESD (Human Body Model)
2 kV
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (Package)b
8-Pin MSOP
846 mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Impedance (QJA)
8-Pin MSOPa
130_C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes
a.
Device mounted with all leads soldered or welded to PC board.
b.
Derate 7.7 mW/_C above TA = 25_C
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.
RECOMMENDED OPERATING RANGE
Input Voltage, VIN
2 V to 6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage, VOUT (Adjustable Version)
1.215 V to 5 V
. . . . . . . . . . . . . . .
SD Input Voltage, VSD
0 V to VIN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature, TA
40_C to 85_C
. . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature, TJ
40_C to 135_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
Test Conditions
Unless Otherwise Specified
V
1 V I
1 A
Limits
40 to 85_C
Parameter
Symbol
VIN = VOUT(nom) + 1 V, IOUT = 1 mA
CIN = 2.2 mF, COUT = 2.2 mF, VSD = 1.5 V
Tempa
Minb
Typc
Maxb
Unit
Output Voltage Range
Adjustable Version
Full
1.215
5
V
Output Voltage Accuracy
VOUT
1 mA v IOUT v 300 mA
Room
1.5
% VO(
)
Output Voltage Accuracy
(Fixed Versions)
OUT
1 mA v IOUT v 300 mA
Full
2.5
% VO(nom)
Feedback Voltage (ADJ Version)
VADJ
Room
1.191
1.215
1.239
V
Feedback Voltage (ADJ Version)
VADJ
Full
1.179
1.251
V
Line Regulation (VADJ v VOUT v 4 V)
DVOUT 100
From VIN = VOUT + 1 V to VOUT + 2 V
Full
0.18
%/V
Line Regulation (4 V v VOUT v 5 V)
OUT
VIN VOUT
From VIN = 5.5 V to 6 V
Full
0.18
%/V
IOUT = 10 mA
Room
5
20
Dropout Voltaged
IOUT = 200 mA
Room
85
180
Dropout Voltaged
(@VOUT(nom) w 2 V)
IOUT = 300 mA
Room
150
350
()
VIN VOUT
IOUT = 300 mA
Full
500
mV
Dt V lt
d
VIN VOUT
IOUT = 200 mA
Room
170
250
mV
Dropout Voltaged
(@VOUT(nom) t 2 V, VIN w 2 V)
IOUT = 300 mA
Room
290
375
(@VOUT(nom) t 2 V, VIN w 2 V)
IOUT = 300 mA
Full
525
IOUT = 0 mA
Room
150
IOUT = 200 mA
Room
1000
Ground Pin Current
IGND
IOUT = 200 mA
Full
1500
mA
GND
IOUT = 300 mA
Room
1500
m
IOUT = 300 mA
Full
2800
Shutdown Supply Current
IIN(off)
VSD = 0 V
Room
0.1
1
mA
ADJ Pin Current
IADJ
ADJ = 1.2 V
Room
5
100
nA
Peak Output Current
IO(peak)
VOUT w 0.95 x VOUT(nom), tpw = 2 ms
Room
600
mA
Output Noise Voltage
eN
BW = 50 Hz to 100
w/o CNOISE
Room
200
mV (rms)
Output Noise Voltage
eN
BW = 50 Hz to 100
kHz IOUT = 150 mA
CNOISE = 0.1 mF
Room
100
mV (rms)
f = 1 kHz
Room
60
Ripple Rejection
DVOUT/DVIN
IOUT = 150 mA
f = 10 kHz
Room
60
dB
pp
j
OUT
IN
OUT
f = 100 kHz
Room
40
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