FAN1537 Fairchild Semiconductor, FAN1537 Datasheet - Page 3

• Manufacturer Part Number: FAN1537
• Description: Dual 1A Adjustable/Fixed Low Dropout Linear Regulators
• Manufacturer: Fairchild Semiconductor

PRODUCT SPECIFICATION
Electrical Characteristics
The • denotes specifications which apply over the specified operating temperature range of 0°C to 125°C junction temperature.
Notes:
1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are
2. Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will
3. ESR = 0.2 .
4. For adjust only, V
REV. 1.1.1 3/20/02
Parameter
Output Voltages
Output Voltage
Time to Output Voltages Valid
Reference Voltage, V
Line Regulation
(both outputs)
Load Regulation
(both outputs)
Dropout Voltage
(3.3V output)
Current Limit
(both outputs)
Minimum Load Current
(both outputs)
Quiescent Current
Ripple Rejection
(both outputs)
Long-Term Stability
RMS Output Noise (% of V
Thermal Resistance, Junction to
Case
Thermal Shutdown
Thermal Shutdown Hysteresis
measured at a constant junction temperature by low duty cycle pulse testing.
not be available over the full input/output voltage range.
1,2
1,2
3
OUT
REF
= V
REF
OUT
(1 + R1/R2)
) T
10mA
4.75V
3.3V Output, V
From V
10mA
4.75V
4.75V
V
V
4.75V
V
f = 120Hz, C
V
T
SO-8
TO-252 DPAK
SPAK
Conditions
Junction Temperature
V
A
A
IN
IN
IN
IN
OUT
= 125°C, 1000 hrs.
= 25°C, 10Hz
(Operating Conditions: V
= 4.75V, 10mA
= 5V
= 7V
= 5V, I
IN
= 1%, I
I
V
I
V
V
V
OUT
OUT
IN
IN
IN
IN
OUT
4.75V
OUT
7V
7V
7V, I
7V
IN
OUT
= 1A
1A
1A
= 4.5V, I
= 22µF Tantalum,
OUT
f
= 1A
I
OUT
10kHz
= 10mA
OUT
IN
1A
= 1A
7V, T
J
=25°C unless otherwise specified.)
•
•
•
•
•
•
•
•
•
•
•
1.764
1.742
2.450
2.420
3.234
3.200
1.225
1.210
10
Min.
3.2
1.3
60
2.500
2.500
3.300
3.300
1.250
1.250
0.005
1.100
0.003
Typ.
0.05
0.03
1.8
1.8
155
1.5
50
10
3
6
2
1.836
1.858
2.550
2.580
3.366
3.400
1.275
1.290
1.300
Max.
0.5
0.5
15
1.0
5
FAN1537
msec
°C/W
°C/W
°C/W
Units
mA
mA
dB
°C
°C
%
%
%
%
V
V
V
V
A
3