LM2575 & LM2576
POWER MANAGEMENT
Electrical Characteristics (Cont.)
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 Leakage C urrent
(2)
Output = 0V
Output = -1V
Qui escent C urrent
(2)
Sy mbol
Test C onditions
Min
Ty p
Max
U nits
I
L
V
IN
= V
IN
Rated
7.5
2
30
10
12
mA
I
Q
5
mA
Standby Qui escent C urrent
(On/Off Pi n = 5V)
On/Off Pi n Logi c Input Level
I
STBY
50
500
µA
V
IH
2.2
2.4
1.4
V
V
IL
1.2
1.0
0.8
V
On/Off Pi n Input C urrent
I
IH
I
IL
V
ON/OFF
= 5V (Off)
V
ON/OFF
= 0V (On)
12
0
30
10
µA
Notes:
(1) Output sourcing current, resistive load, no inductor or capacitor.
(2) Feedback = V
O
+ 1.0V.
(3) Feedback = 0V.
ã
2001 Semtech Corp.
4
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