ISSUED DATE :2006/03/09
REVISED DATE :2006/05/17B
Pin Function
Pin Name
V
IN
Output
Ground
Feedback(FB)
ON/OFF(SD)
Pin#
1
2
3
4
5
Function
This is the positive input supply for the IC switching regulator. A suitable input bypass capacitor
must be present at this pin to minimize voltage transients and to supply the switching current
needed by regulator.
Internal switch. The voltage at this pin switches between (+V
IN
- V
SAT
) and approximately -0.5V,
with a duty cycle of approximately V
OUT
/V
IN
. To minimize coupling to sensitive circuitry, the PC
board copper area connected to this pin should be keep to a minimum.
Circuit ground
Senses the regulated output voltage to complete the feedback loop
.
Allows the switching regulator circuit to be shutdown using logic level signals. Thus drop the total
input supply current to approximately 150 A. Pulling this pin below a threshold voltage of
approximately 1.3V turns the regulator on, and pulling this pin above 1.3V (up to a maximum of
18V) shuts the regulator down. If this shutdown feature is not needed, ON/OFF pin can be wired to
the ground pin.
Absolute Maximum Ratings
Parameter
Supply Voltage
ON/OFF Pin Input Voltage
Feedback Pin Voltage
Output Voltage to ground
Power Dissipation
Storage Temperature
Operating temperature
Operating Voltage
Symbol
V
CC
V
SD
V
FB
V
OUT
P
D
T
ST
T
OP
V
OP
Ratings
24
-0.3 ~ +18
-0.3 ~ +18
-1
Internally Limited
-65 ~ +150
-40 ~ +125
+4.5 ~ +22
Unit
V
V
V
V
W
:
:
V
G5J2596M Electrical Characteristics
Specifications in
boldface type
are for
full operating temperature range.
The other type are for T
J
=25 : .
Parameter
Output Feedback
Efficiency
Symbol
V
FB
Conditions
5 V
IN
22V, 0.2A
I
LOAD
3A
V
OUT
=3V
V
IN
=12V,
I
LOAD
=3A, V
OUT
=3V
Min
1.180/1.168
Typ
1.230
74
Max
1.280/1.292
Unit
V
%
G5J2596M-33 Electrical Characteristics
Specifications in
boldface type
are for
full operating temperature range.
The other type are for T
J
=25 : .
Parameter
Output Feedback
Efficiency
Symbol
V
FB
Conditions
5.5V V
IN
22V
0.2A
I
LOAD
3A
V
IN
=12V,
I
LOAD
=3A
Min
3.168/3.135
Typ
3.3
75
Max
3.432/3.465
Unit
V
%
G5J2596M-50 Electrical Characteristics
Specifications in
boldface type
are for
full operating temperature range.
The other type are for T
J
=25 : .
Parameter
Output Feedback
Efficiency
Symbol
V
FB
Conditions
8V V
IN
22V
0.2A
I
LOAD
3A
V
IN
=12V,
I
LOAD
=3A
Min
4.80/4.75
Typ
5.0
80
Max
5.20/5.25
Unit
V
%
G5J2596M-12 Electrical Characteristics
Specifications in
boldface type
are for
full operating temperature range.
The other type are for T
J
=25 : .
Parameter
Output Feedback
Efficiency
G5J2596M
Symbol
V
FB
Conditions
15V V
IN
22V
0.2A
I
LOAD
3A
V
IN
=16V,
I
LOAD
=3A
Min
11.52/11.40
Typ
12
89
Max
12.48/12.60
Unit
V
%
Page: 2/6
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