PWM CONTROL 5A STEP-DOWN CONVERTER
FSP3132
ABSOLUTE MAXIMUM RATINGS(NOTE)
Parameter
VCC Pin Voltage, V
CC
Feedback Pin Voltage, V
FB
EN Pin Voltage, V
EN
Switch Pin Voltage, V
OUTPUT
Power Dissipation, P
D
Operating Temperature Range, T
OPR
Storage Temperature Range, T
STG
Value
V
SS
-0.3 to V
SS
+25
V
SS
-0.3 to V
CC
V
SS
-0.3 to V
IN
+ 0.3
V
SS
-0.3 to V
IN
+ 0.3
Internally limited
-20 to +125
-40 to +150
Unit
V
V
V
V
mW
°C
°C
Note: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions
for long periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
IN
= 12V, T
A
= 25°C, unless otherwise specified.)
Parameter
Symbol
Input Voltage
Feedback Voltage
Feedback Bias Current
Switch Current
Current Consumption During
Power Off
Line Regulation
Load Regulation
Oscillation Frequency
Frequency of Current Limit or
Short Circuit Protect
Enable Pin Input Voltage
Enable Pin Input Leakage
Current
OCSET Pin Bias Current
Soft-Start Time
Internal MOSFET Rdson
Efficiency
Thermal Resistance
Junction to Ambient
V
IN
V
FB
I
FB
I
SW
I
SSS
I
IOUT
= 0.1A
I
IOUT
= 0.1A
V
EN
= 0
Test Conditions
Min.
3.6
0.784
5.5
10
1
0.5
300
2
1.0
360
0.8
0.1
Typ.
Max.
23
0.816
0.5
Unit
V
V
µA
A
µA
%
%
KHz
KHz
V
µA
105
5
100
70
µA
ms
mΩ
%
°C/W
V
IN
=5V~23V
ΔV
OUT
/V
OUT
I
IOUT
= 0.1A~2A
ΔV
OUT
/V
OUT
Measure waveform at SW pin
fosc
fosc1
V
SH
V
SL
I
SH
I
SL
I
OCSET
T
SS
R
dson
EFFI
θ
JA
V
IN
=5V, V
FB
= 0
V
IN
=12V, V
FB
= 0
V
IN
=12V, V
OUT
=5V,
I
IOUT
= 2A
Measure waveform at SW pin
Evaluate oscillation at SW pin
Evaluate oscillation stop at
SW pin
240
10
2.0
0.8
20
-10
90
2
70
50
92
50
75
0.3
2/6
2007-6-6
FOSLINK [ FOSLINK SEMICONDUCTOR CO.,LTD ]
