L4972 STMicroelectronics, L4972 Datasheet - Page 2

• Manufacturer Part Number: L4972
• Description: 2A SWITCHINGREGULATOR
• Manufacturer: STMicroelectronics

ABSOLUTE MAXIMUM RATINGS
(*) SO-20
L4972A-L4972AD
PIN CONNECTION (top view)
THERMAL DATA
2/23
V
2
Symb ol
, V
R
R
Symbo l
T
V
th j-pins
th j-amb
J
7
V
V
V
4
P
I
V
, T
, V
V
I
I
I
I
20
, V
11
11
20
3
2
7
8
tot
3
I
stg
9
8
, V
10
Thermal Resistance Junction-Pins
Thermal Resistance Junction-ambient
Input Voltage
Input Operating Voltage
Output DC Voltage
Output Peak Voltage at t = 0.1 s f = 200khz
Maximum Output Current
Boostrap Voltage
Boostrap Operating Voltage
Input Voltage at Pins 4, 12
Reset Output Voltage
Reset Output Sink Current
Input Voltage at Pin 2, 7, 9, 10
Reset Delay Sink Current
Error Amplifier Output Sink Current
Soft Start Sink Current
Total Power Dissipation at T
Junction and Storage Temperature
Parameter
at T
Parameter
amb
PINS
= 70 C (No copper area on PCB)
90 C
max
max
Po werdip
12 C/W
60 C/W
Internally Limited
-40 to 150
5 / 3.75(*)
V
1.3/1 (*)
Valu e
11
55
50
65
12
50
50
30
30
-1
-5
7
1
+ 15
16 C/W
80 C/W
SO- 20
Unit
mA
mA
mA
W
W
V
V
V
V
V
V
V
V
V
A
C