L4957 查看數據表（PDF） - STMicroelectronics
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L4957 Datasheet PDF : 7 Pages
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L4957
ABSOLUTE MAXIMUM RATINGS
Symbol
VIN
Ti
Tstg
Supply Input Voltage
Junction Temperature
Storage Temperature
Parameter
PINS CONNECTION
Value
7
-40 to +150
-40 to +150
Unit
V
°C
°C
3
OUT
2
GND
1
IN
D98IN838B
Versawatt (TO220)
3
OUT
2
GND
1
IN
D98IN933A
D2PAK
BLOCK DIAGRAM
VIN
10µF
IN
1
PRE
REGULATOR
VREF
CURRENT
LIMIT
WITH
FOLDBACK
+
E/A
-
CHARGE
PUMP
BUFFER
THERMAL
SHUTDOWN
POWER
DMOS
150mΩ
3
RX
OUT
VOUT
22µF
RY
2
GND
D98IN839C
2/7
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