DIO1280B datasheet(4/10 Pages) DIOO

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DIO1280B

www.dioo.com

DIO1280B• 2.4

Electrical Characteristics

TA=-40

℃ to 85℃, unless otherwise specified. Typical values are V

IN=5.0V, IIN≤3A, CIN=0.1µF and TA=25

℃.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

VIN_CLAMP

Input Clamping Voltage

IIN=10mA

Input Quiescent Current

VIN=5V, #EN=0V

110

IIN_Q

OVLO Supply Current

VOVLO=3V, VIN=5V. VOUT=0V

VUVLO

Under Voltage Trip Level

VIN Rising

2.25

2.4

VIN Falling

1.95

2.1

VIN_OVLO

Internal Over-Voltage Trip Level

VIN Rising, OVLO=GND

6.6

6.8

7.0

VIN Falling

6.2

VOVLO_TH

OVLO Set Threshold

VIN=2.5V to VOVLO

1.18

1.20

1.22

VOVLO_RNG

Adjustable OVLO Threshold Range

VIN=2.5V to VOVLO

VOVLO_SELECT

External OVLO Select Threshold

0.28

0.30

0.32

RON

Resistance from VIN to VOUT

VIN=5V, IOUT=1A, TA=25

℃

mΩ

COUT

OUT Load Capacitance

VIN=5V

1000

µF

IOLVO

OVLO Input Leakage Current

VOVLO=VOVLO_TH

-100

100

TSDN

Thermal Shutdown

130

℃

TSDN_HYS

Thermal Shutdown Hysteresis

℃

Digital Signals

VOL

#ACOK Output Low Voltage

ISINK=1mA

0.4

VIH_#EN

Enable HIGH Voltage

VIN=2.5V to VOVLO

1.2

VIL_#EN

Enable LOW Voltage

VIN=2.5V to VOVLO

0.5

IACOK_LEAK

#ACOK Leakage Current

VACOK=3V, #ACOK Deasserted

-0.5

0.5

#EN_Leak

#EN Leakage Current

VIN=5.0V, VOUT=Float

-1.0

1.0

Timing Characteristics

tDEB

Debounce Time

Time from 2.5V<VIN<VIN_OVLO to

VOUT=0.1 x VIN

tSTART

Soft-Start Time

Time from VIN=VIN_min to 0.2 x

#ACOK, VIO=1.8V with 10kΩ

Pull-up Resistor

tON

Switch Turn-On Time (Note 1)

RL=100Ω, CL=22µF, VOUT from

0.1 x VIN to 0.9 x VIN

1.5

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