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FAN1537 Datasheet(PDF) 3 Page - Fairchild Semiconductor

No. de pieza FAN1537
Descripción Electrónicos  Dual 1A Adjustable/Fixed Low Dropout Linear Regulators
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN1537 Datasheet(HTML) 3 Page - Fairchild Semiconductor

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PRODUCT SPECIFICATION
FAN1537
REV. 1.1.1 3/20/02
3
Electrical Characteristics (Operating Conditions: VIN ≤ 7V, TJ=25°C unless otherwise specified.)
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
measured at a constant junction temperature by low duty cycle pulse testing.
2. 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. ESR = 0.2
Ω.
4. For adjust only, VOUT = VREF (1 + R1/R2)
Parameter
Conditions
Min.
Typ.
Max.
Units
Output Voltages
10mA
≤ IOUT ≤ 1A
4.75V
≤ VIN ≤ 7V
1.764
1.742
2.450
2.420
3.234
3.200
1.8
1.8
2.500
2.500
3.300
3.300
1.836
1.858
2.550
2.580
3.366
3.400
V
Output Voltage
3.3V Output, VIN = 4.5V, IOUT = 1A
3.2
V
Time to Output Voltages Valid
From VIN
≥ 4.75V
5
msec
Reference Voltage, VREF
10mA
≤ IOUT ≤ 1A
4.75V
≤ VIN ≤ 7V
1.225
1.210
1.250
1.250
1.275
1.290
V
Line Regulation1,2
(both outputs)
4.75V
≤ VIN ≤ 7V, IOUT = 10mA
0.005
0.5
%
Load Regulation1,2
(both outputs)
VIN = 4.75V, 10mA
≤ IOUT ≤ 1A
0.05
0.5
%
Dropout Voltage
(3.3V output)
∆VOUT = 1%, IOUT = 1A
1.100
1.300
V
Current Limit
(both outputs)
VIN = 5V
1.3
1.5
A
Minimum Load Current
(both outputs)
4.75V
≤ VIN ≤ 7V
10
mA
Quiescent Current
VIN = 7V
615
mA
Ripple Rejection3
(both outputs)
f = 120Hz, COUT = 22µF Tantalum,
VIN = 5V, IOUT = 1A
60
dB
Long-Term Stability
TA = 125°C, 1000 hrs.
0.03
1.0
%
RMS Output Noise (% of VOUT)TA = 25°C, 10Hz
≤ f ≤ 10kHz
0.003
%
Thermal Resistance, Junction to
Case
SO-8
50
°C/W
TO-252 DPAK
3
°C/W
SPAK
2
°C/W
Thermal Shutdown
155
°C
Thermal Shutdown Hysteresis
Junction Temperature
10
°C


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