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PRODUCT SPECIFICATION
FAN1581
3
P
Absolute Maximum Ratings
Electrical Characteristics
T
J
=25°C, V
OUT
= V
S
The denotes specifications which apply over the specified operating temperature range.
, V
ADJ
= 0V unless otherwise specified.
Notes:
1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are
measured at a constant junction temperature by low duty cycle pulse testing.
2. Line and load regulation are guaranteed up to the maximum power dissipation (18W). Power dissipation is determined by
input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/
output voltage range.
3. FAN1581 only.
4. FAN1581-1.5 only.
5. FAN1581-2.5 only.
Parameter
V
IN
V
CNTL
Operating Junction Temperature Range
Lead Temperature (Soldering, 10 sec.)
Storage Temperature Range
Min.
Max.
7
13.2
125
300
150
Unit
V
V
°C
°C
°C
0
-65
Parameter
Conditions
CNTL
= 2.75V,
Min.
1.243
Typ.
1.250
Max.
1.257
Units
V
Reference Voltage
3
V
I
OUT
2.05V
2.7V
10mA
3V
10mA
3V
5.1V
1.75V
I
OUT
V
IN
10mA
V
IN
V
CNTL
I
OUT
V
CNTL
I
OUT
V
IN
V
IN
I
OUT
V
IN
V
IN
V
IN
C
OUT
IN
= 2.0V, V
= 10mA
≤
V
≤
V
≤
I
≤
V
IN
≤
I
≤
V
IN
≤
V
≤
V
= 10mA
= 2.1V, V
≤
I
= 2.05V,
= 2.75V,
= 5A
= 2.75V,
= 5A
= 2.05V, V
= 2.05V, V
= 10mA
= 2.05V, V
= 3.3V, V
= 3.75V, V
= 22μF Tantalum, I
Reference Voltage
3
IN
≤
5.5V,
≤
12V,
≤
5A
7V (function of Vout),
OUT
≤
5A
≤
7V, 10mA
IN
≤
7V, 10mA
IN
≤
5.5V, 2.5V
CNTL
OUT
≤
1.237
1.250
1.263
V
Adjustable Output Voltage
Vref
1.5
5.7
V
Output Voltage
Output Voltage
Line Regulation
4
≤
I
OUT
≤
I
≤
V
≤
5A
≤
1.47
2.474
1.5
2.5
1
1.53
2.526
3
V
V
5
OUT
CNTL
5A
≤
12V,
1,2
mV
Load Regulation
1,2
CNTL
≤
5A
V
= 2.75V,
OUT
1
5
mV
Dropout Voltage Minimum V
Dropout Voltage Minimum V
CNTL
IN
REF
V
= 1%, I
REF
= 1%,
OUT
= 5A
1.05
0.4
1.18
0.5
V
V
Dropout Voltage Minimum V
IN
V
REF
= 1%,
0.5
0.6
V
Current Limit
Control Pin Current
CNTL
CNTL
= 2.75V
= 2.75V,
5.2
A
μA
30
120
Adjust Pin Current
Minimum Load Current
Ripple Rejection
3
CNTL
CNTL
CNTL
= 2.75V
= 5V
= 3.75V, f = 120Hz,
OUT
= 2.5A
50
5.0
80
120
10
mA
mA
dB
60
Thermal Resistance, Junction to
Case
Thermal Regulation
Thermal Shutdown
3
°C/W
T
A
= 25°C, 30ms pulse
0.002
150
0.02
%/W
°C