Datasheet

I
2
I
1
I
2
I
1
S2 S4S1 S3
1.2V
Ref.
1.7 MHz Osc.
OCL
OCL = Over-
Current Limit
V
IN
V
OUT
C- C+
Soft-
start
SD
LM2750
GND
FB**
Ra*
Rb*
* LM2750-5.0 only
** LM2750-ADJ only
R1**
R2**
LM2750
www.ti.com SNVS180L –APRIL 2002–REVISED MAY 2013
Electrical Characteristics
(1) (2)
(continued)
Typical values and limits in standard typeface apply for T
J
= 25ºC. Limits in boldface type apply over the operating junction
temperature range. Unless otherwise specified: 2.9V ≤ V
IN
≤ 5.6V, V
OUT
= 5.0V (LM2750-ADJ), V(SD) = V
IN
, C
FLY
= 1µF, C
IN
=
2 x 1µF, C
OUT
= 2 x 1µF
(3)
.
Symbol Parameter Conditions Min Typ Max Units
Capacitor Requirements
I
OUT
≤ 60mA 1.0 µF
C
IN
Required Input Capacitance
(7)
60mA ≤ I
OUT
≤ 120mA 2.0
C
OUT
Required Output Capacitance
(7)
I
OUT
≤ 60mA 1.0 µF
60mA ≤ I
OUT
≤ 120mA 2.0
(7) Limit is the minimum required output capacitance to ensure proper operation. This electrical specification is specified by design.
BLOCK DIAGRAM
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