L4957AD18 STMICROELECTRONICS [STMicroelectronics], L4957AD18 Datasheet - Page 2

• Manufacturer Part Number: L4957AD18
• Description: UP TO 5A ULDO LINEAR REGULATOR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

L4957A
ABSOLUTE MAXIMUM RATINGS
PINS CONNECTION
BLOCK DIAGRAM
PIN FUNCTIONS
2/7
Pin N
V
1
2
3
IN
Symbol
10 F
T
V
T
stg
IN
i
Name
GND
OUT
IN
IN
Supply Input Voltage
Junction Temperature
Storage Temperature
Unregulated input voltage; this pin must be bypassed with a capacitor larger than 10 F.
To connect to Ground to get 1.5V, 1.8V, 2.5V or 3.3V output.
Regulated output voltage. A minimum bypass capacitor of 22 F is required to insure stability.
1
Versawatt (TO220)
REGULATOR
3
2
1
PRE
V
REF
D98IN838B
Parameter
+
-
E/A
CURRENT
OUT
GND
IN
LIMIT
Function
BUFFER
SHUTDOWN
THERMAL
CHARGE
PUMP
GND
3
2
1
2
D2PAK
POWER
200m
-40 to +150
-40 to +150
DMOS
R
R
X
Y
Value
16
GND
3
D00IN1108A
OUT
D98IN933A
OUT
IN
22 F
V
Unit
OUT
V
C
C