SC1534 查看數據表（PDF） - Semtech Corporation

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SC1534

400mA SmartLDO ™

Semtech Corporation 

400mA SmartLDOTM

SC1534

PRELIMINARY - July 26, 2000

ELECTRICAL CHARACTERISTICS

Unless specified, TA = 25°C, VIN = 5V, VAUX = 3.3V, IO = 400mA, CO = 10µF. Values in bold apply over full operating temperature range.

Parameter

Symbol

Test Conditions

MIN TYP MAX Units

VIN

Supply Voltage

VIN

VAUX = 0V

4.35 5.00 5.50 V

Quiescent Current

IQ

VIN = 5V, VAUX = 0V, IO = 0mA

8.0 11.0 mA

13.0

VIN = 5V, VAUX = 3.3V, IO = 0mA

10.0 14.0 mA

15.0

Reverse Leakage From VAUX

IVIN

VAUX = 3.6V, VIN = 0V, IO = 0mA

-1.5 -3.0 mA

-4.0

VAUX

Supply Voltage

VAUX

3.0 3.3 3.6 V

Quiescent Current

IQ(AUX)

VAUX = 3.3V, VIN = 0V, IO = 0mA

8.0 11.0 mA

13.0

VAUX = 3.3V, VIN = 5V, IO = 0mA

1.5 2.5 mA

3.0

Reverse Leakage From VIN

5V Detect(1)(2)(3)

IVAUX

VIN = 5.5V, VAUX = 0V, IO = 0mA

-5.0 -50.0 µA

-100.0

Low Threshold Voltage

VTH(LO)

VIN Falling, IO = 20mA

3.92 4.05 4.18 V

3.90

4.20

Hysteresis

VHYST

90 170

mV

80

High Threshold Voltage

VO

VTH(HI)

VIN Rising, IO = 20mA

4.35 V

LDO Output Voltage

Output Current

Line Regulation

VO

IO = 20mA

3.267 3.300 3.333 V

4.35V ≤ VIN ≤ 5.5V, 0mA ≤ IO ≤ 400mA 3.234

3.366

IO

400 mA

REG(LINE)

VIN = 4.35V to 5.5V

0.20 0.60 %

0.80

Load Regulation

REG(LOAD)

IO = 20mA to 400mA

0.20 0.80 %

1.00

© 2000 SEMTECH CORP.

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652 MITCHELL ROAD NEWBURY PARK CA 91320

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