DIO6971

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© 2018 DIOO MICROCIRCUITS CO., LTD

DIO6971• V1.1

 

Electrical Characteristics

VIN = 12V, VOUT = 1.2V, L = 2.2μH, COUT = 47μF, TA = 25°C, IOUT=1A unless otherwise specified.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

VIN

Input Voltage Range

4.5

24

V

IQ

Quiescent Current

IOUT=0, VFB=VREF⋅105%

140

µA

ISHDN

Shutdown Current

EN=0

5

10

µA

VREF

Feedback Reference Voltage

0.788

0.8

0.812

V

IFB

FB Input Current

VFB=3.3V

-50

50

nA

RDS(ON)

Top FET RON

80

mΩ

RDS(ON)

Bottom FET RON

40

mΩ

ILIM

Low side power FET current limit

3.0

4.0

A

VENH

EN Rising Threshold

1.5

V

VENL

EN Falling Threshold

0.4

V

VUVLO

VIN Under-Voltage Unlock

Threshold, Rising

4.45

V

fSW

Switching Frequency

500

kHz

Min ON Time

40

ns

Min OFF Time

180

ns

TSS

Soft Start Time

1

ms

TSD

Thermal Shutdown Temperature

148

°C

THYS

Thermal Shutdown Hysteresis

20

°C

Specifications subject to change without notice.