FAN1537MA datasheet(3/8 Pages) FAIRCHILD

부품명	FAN1537MA

상세설명	Dual 1A Adjustable/Fixed Low Dropout Linear Regulators

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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

2.500

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

1.275

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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