L4957AD18 STMICROELECTRONICS [STMicroelectronics], L4957AD18 Datasheet - Page 3

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

THERMAL DATA
ELECTRICAL CHARACTERISTICS (T
Figure 1: Line Regulation vs. Junction
= Specifications referred to T
Symbol
4.5
3.5
2.5
1.5
0.5
R
Symbol
R
R
5
4
3
2
1
0
V
DSON
V
-40
I
I
th j-case
th j-amb
O
Q
IN
O
-20
Temperature
Operating Supply Voltage
Output Voltage
Drain-Source ON
Resistance
Current Limiting
Quiescent Current
Ripple Rejection
0
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
Thermal Shutdown
Thermal Hysteresis
20
Parameter
40
Tj [ C]
3V < Vin < 6.5V
Iout = 10mA
60
80
J
from 0 C to +125 C.
100 120 140 160
3.15V < V
V
V
V
V
V
V
V
V
V
V
V
3V < V
f = 120Hz, I
V
Parameter
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
j
= 25 C, V
= 3.3V 5%; 0.1A < I
= 3.3V 5% I
= 5V 5%
= 3.3V 5% (0.1A < I
= 5V 5%
= 3.3V 5% I
= 5V 5%
= 3.3V 5% (0.1A < I
= 5V 5%
= 5V 5%
= 5V 5%
= 5V
IN
Test Condition
< 14V
IN
V
O
< 5.25V; I
IN
= 1A
IN
= 2V
= 5V, unless otherwise specified).
0.1A < I
0.1A < I
I
0.1A < I
O
O
O
PP
= 0.1A
= 0.1A
= 0.1A
Figure 2: Load Regulation
O
-1
-2
-3
-4
-5
= 0.1A
O
5
4
3
2
1
0
O
O
O
O
O
< 5A
0
< 2.2A)
< 5A
< 5A
< 45A)
< 5A
Typ.
Max.
Typ.
Max.
1
(Pulsed technique has been used)
1.485
1.782
1.764
2.475
3.267
3.234
Min.
1.47
2.45
5.1
60
TO220
3
2.5
50
2
Iout [A]
Vout = 1.5V
Vin = 5V
Tj = 25 C
Typ.
150
1.5
1.5
1.8
1.8
2.5
2.5
3.3
3.3
6.3
0.6
20
75
3
D2PAK
60
3
1.515
1.818
1.836
2.525
3.333
3.366
Max.
1.53
2.55
300
7.5
14
2
4
L4957A
Unit
Unit
C/W
C/W
m
mA
dB
V
V
V
V
V
V
V
V
V
A
C
C
3/7
5