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SI91821DH-50-T1 датащи(PDF) 3 Page - Vishay Siliconix

номер детали SI91821DH-50-T1
подробное описание детали  Micropower 300-mA CMOS LDO Regulator With Error Flag
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производитель  VISHAY [Vishay Siliconix]
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Si91821
Vishay Siliconix
Document Number: 71614
S-51147–Rev. E, 20-Jun-05
www.vishay.com
3
SPECIFICATIONS
Limits
−40 to 85_C
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
Parameter
Unit
Maxb
Typc
Minb
Tempa
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
Symbol
Dynamic Line Regulation
DVO(line)
VIN : VOUT(nom) + 1 V to VOUT(nom) + 2 V
tr/tf = 5 ms, IOUT = 250 mA
Room
10
mV
Dynamic Load Regulation
DVO(load)
IOUT : 1 mA to 150 mA, tr/tf = 2 ms
Room
30
mV
Turn-on Overshoot
DVOOS
VIN followed by SD = High Event
CNOISE v 100 nF
Room
2.5
%
VOUT Turn-On-Time
tON
COUT = 10 mF, VOUT to 90% of final value,
VIN = 3.6 V
Room
350
mS
Thermal Shutdown
Thermal Shutdown Junction Temp
TJ(s/d)
Room
165
_C
Thermal Hysteresis
THYST
Room
20
_C
Short Circuit Current
ISC
VOUT = 0 V
Room
800
mA
Shutdown Input
SD Input Voltage
VIH
High = Regulator ON (Rising)
Full
1.5
VIN
V
SD Input Voltage
VIL
Low = Regulator OFF (Falling)
Full
0.4
V
SD Input Currente
IIH
VSD = 0 V, Regulator OFF
Room
0.01
mA
SD Input Currente
IIL
VSD = 6 V, Regulator ON
Room
1.0
mA
Shutdown Hysteresis
VHYST
Full
100
mV
Error Output
Output High Leakage
IOFF
ERROR = VOUT(nom)
Full
0.01
2
mA
Output Low Voltage
VOL
ISINK = 2 mA
Full
0.4
Power_Good Trip Threshold f, g
(Rising)
VTH
Full
0.93 x
VOUT
0.95 x
VOUT
0.97 x
VOUT
V
Hysteresisf
VHYST
Room
2% x
VOUT
Error Delay
tDELAY
CNOISE v 100 nF
Full
10
mS
Notes
a.
Room = 25_C, Full = −40 to 85_C.
b.
The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
c.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing and are measured at TA = 25_C.
d.
The dropout voltage is defined as VIN − VOUT when VOUT is 100 mV below the value of VOUT for VIN = VOUT + 2 V. This is applicable for voltages of 2.5 V or
higher.
e.
The device’s shutdown pin includes a typical 6-MW internal pull-down resistor connected to ground.
f.
VOUT is defined as the output voltage of the DUT at 1 mA.
g.
Typical only, from VOUT = 2.0 V to VOUT = 1.5 V.


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