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參數(shù)資料
| 型號： | SC1452 |
| 廠商： | Semtech Corporation |
| 英文描述： | DUAL 150mA LDO REGULATOR WITH PROGRAMMABLE RESET |
| 中文描述： | 150mA雙路LDO具有可編程復(fù)位 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 116K |
| 代理商： | SC1452 |
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, V
IN
= V
OUT
+ 1V, I
OUTA
= I
OUTB
= 1mA, C
OUT
= 1.0 μF, V
ENA
= V
ENB
= V
IN
. 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
f = 10Hz to 99kHz, I
OUT
= 50mA,
C
BYP
= 10nF, C
OUT
60
dB
Output Voltage Noise
e
n
50
μV
RMS
BYP
Start-up Rise Time
t
r
C
BYP
= 10nF
1.5
ms
ENABLE (ENA, ENB)
Enable Input Threshold
V
IH
V
IL
I
EN
1.6
V
0.4
Enable Input Current
0.2
μA
RSTA, RSTB
Reset Threshold
V
TH
V
OUT
falling
V
OUT
rising
88
90
92
%V
OUT
90
92
94
Reset A Delay
t
RSTA
t
RSTB
V
OH
V
OL
30
50
70
ms
Reset B Delay
Reset A, B Output Voltage
(1)
V
DLYB
= 0V
I
SOURCE
= 0.5mA
I
SINK
= 1.2mA
90
150
210
ms
80
%V
OUT
V
0.3
DLYB
Delay Voltage Threshold
V
DLYB
I
DLYB
1.225
1.250
1.275
V
Delay Source Current
V
OUTB
< V
TH
2.1
3.0
3.9
μA
OVER TEMPERATURE PROTECTION
High Trip Level
T
HI
T
HYST
150
°
C
°
C
Hysteresis
20
NOTE:
(1) V
OHA
will be a percentage of V
OUTA
, and V
OHB
will be a percentage of V
OUTB
.
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