LM2575 & LM2576
POWER MANAGEMENT
Absolute Maximum Ratings
Parameter
Input Voltage
On/Off Pi n Input Voltage
Output Voltage to C ommon (Steady State)
Power D i ssi pati on
Thermal Resi stance Juncti on to Ambi ent
TO-220
TO-263
Thermal Resi stance Juncti on to C ase
TO-220
TO-263
Operati ng Juncti on Temperature Range
Storage Temperature Range
Lead Temperature (Solderi ng) 10 Sec.
ESD Rati ng (Human Body Model)
P
D
q
JA
Sy mbol
V
IN
V
ON/OFF
Maximum
45
-0.3
£
V
ON/OFF
£
V
IN
-1
Internally Li mi ted
55
60
2.0
2.0
-40 to +125
-65 to +150
300
2
U nits
V
V
V
W
°C /W
q
JC
T
J
T
STG
T
LEAD
V
ESD
°C /W
°C
°C
°C
kV
Electrical Characteristics
Unless otherwise specified: V
IN
= 12V for 3.3V, 5V and ADJ options and 25V for 12V option; V
OUT
= 5V for ADJ option; T
A
= 25ºC; V
IN
rated = 40V;
I
O
= 0.5 to 3A (LM2576), 0.2 to 1A (LM2575). Values in
bold
apply over full operating temperature range.
Parameter
Output Voltage
LM2576-3.3
Sy mbol
V
O
Test C onditions
I
O
= 0.5A
8V to V
IN
Rated
Min
3.23
3.20
3.14
Ty p
3.30
Max
3.37
3.40
3.47
U nits
V
Output Voltage
LM2576-5
V
O
I
O
= 0.5A
8V to V
IN
Rated
4.90
4.85
4.75
5.00
5.10
5.15
5.25
V
Output Voltage
LM2576-12
V
O
I
O
= 0.5A
15V to V
IN
Rated
11.76
11.52
11.40
12.00
12.24
12.48
12.60
V
Feedback Voltage
LM2576-AD J, V
O
= 5V
V
FB
I
O
= 0.5A
8V to V
IN
Rated
1.217
1.193
1.180
1.230
1.243
1.267
1.280
V
Feedback Bi as C urrent
LM2576-AD J
ã
2001 Semtech Corp.
I
B
V
IN
= 12V, I
O
= 0.5A
50
100
500
nA
2
www.semtech.com
SEMTECH [ SEMTECH CORPORATION ]
