l4955 STMicroelectronics, l4955 Datasheet - Page 2

• Manufacturer Part Number: l4955
• Description: 5a Uldo Linear Regulators Family
• Manufacturer: STMicroelectronics

L4955
ABSOLUTE MAXIMUM RATINGS
PIN CONNECTIONS (Top views)
BLOCK DIAGRAM
2/14
V
IN
10 F
Symbol
T
P
V
tab connected to pin 4
st
TOT
, T
IN
INH
IN
i
1.26V
1(1)
3
PIN x = HEPTAWATT
PIN (x) = VERSAWATT
HEPTAWATT
ACTIVE HIGH
Supply Input Voltage
ADJ and CL pins
PG and INH pins
Power Dissipation @ T
Power Dissipation @ T
Storage Temperature
REGULATOR
INHIBIT
PRE
V
1.26V
V
REF
REF
=
7
6
5
4
3
2
1
+
+
-
-
(1/4W, 1%)
E/A
R
CL
PROGRAM.
amb
case
D96IN367
FIXED
2
C.L.
C.L.
Parameter
= 50 C
= 90 C
CL
OUT
PG
ADJ
GND
INH
CL
IN
FOLDBACK
0.9V
REF
4(2)
GND
+
-
BUFFER
SHUTDOWN
THERMAL
CHARGE
PUMP
6
PG
VERSAWATT
3
1
(TO220)
POWER
150m
DMOS
-40 to +150
D96IN366
-0.3 to 4
0 to V
7(3)
Value
5
24
15
2
IN
OUT
ADJ
R1
R2
D96IN369
22 F
Unit
OUT
GND
IN
W
W
V
V
V
V
C
OUT