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SC1452 датащи(PDF) 3 Page - Semtech Corporation

номер детали SC1452
подробное описание детали  DUAL 150mA LDO REGULATOR WITH PROGRAMMABLE RESET
PDF  7 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1452 датащи(HTML) 3 Page - Semtech Corporation

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SC1452
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
PRELIMINARY - August 7, 2000
3
DUAL 150mA LDO REGULATOR WITH
PROGRAMMABLE RESET
ELECTRICAL CHARACTERISTICS (Cont.)
Unless specified: T
A = 25°C, VIN = VOUT + 1V, IOUTA = IOUTB = 1mA, COUT = 1.0 µF, VENA = VENB = VIN. Values in bold apply over full operating
temperature range.
Parameter
Symbol
Condition
Min
Typ
Max
Units
OUTA, OUTB (Cont.)
Ripple Rejection
PSRR
f = 120Hz, C
BYP = 10nF
60
dB
Output Voltage Noise
e
n
f = 10Hz to 99kHz, I
OUT = 50mA,
C
BYP = 10nF, COUT = 2.2µF
50
µV
RMS
BYP
Start-up Rise Time
t
r
C
BYP = 10nF
1.5
ms
ENABLE (ENA, ENB)
Enable Input Threshold
V
IH
1.6
V
V
IL
0.4
Enable Input Current
I
EN
0.2
µA
RSTA, RSTB
Reset Threshold
V
TH
V
OUT falling
88
90
92
%V
OUT
V
OUT rising
90
92
94
Reset A Delay
t
RSTA
30
50
70
ms
Reset B Delay
t
RSTB
V
DLYB = 0V
90
150
210
ms
Reset A, B Output Voltage
(1)
V
OH
I
SOURCE = 0.5mA
80
%V
OUT
V
OL
I
SINK = 1.2mA
0.3
V
DLYB
Delay Voltage Threshold
V
DLYB
1.225 1.250 1.275
V
Delay Source Current
I
DLYB
V
OUTB < VTH
2.1
3.0
3.9
µA
OVER TEMPERATURE PROTECTION
High Trip Level
T
HI
150
°C
Hysteresis
T
HYST
20
°C
NOTE:
(1) V
OHA will be a percentage of VOUTA, and VOHB will be a percentage of VOUTB.



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