LR1125G-SM1-R datasheet(4/7 Pages) UTC

4 / 7 page

LR1125

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 7

www.unisonic.com.tw

QW-R502-416.A

ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER-OK

POK Output Low Voltage

VOL

Sinking 2mA

Operating Voltage Range for Valid POK

Output

Sinking 100µA

1.0

5.5

Output High Leakage Current

VPOK=5.5V

100

Threshold

Rising edge, referred to VOUT

THERMAL PROTECTION

Thermal-Shutdown Temperature

TSHDN

170

°C

Thermal-Shutdown Hysteresis

∆TSHDN

°C

Ta=-40°C~85°C(Note 2)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Voltage

VIN

2.25

5.50

Input Under Voltage Lockout

VUVLO

Rising, 40mV hysteresis

1.85

2.15

Output Voltage Accuracy (Preset Mode)

VOUT

IOUT=1mA~500mA

-4

Adjustable Output Voltage

VOUT(ADJ)

0.8

4.5

SET Voltage Threshold (Adjustable Mode)

VSET

IOUT=1mA~500mA

766

834

Maximum Output Current

IOUT

500

Short-Circuit Current Limit

ILIM

VOUT=0V

600

2500

SET Dual Mode Threshold

125

SET Input Bias Current

ISET

VSET=0.8V

-100

+100

Ground-Pin Current

IOUT=1mA

400

µA

SHUTDOWN

Shutdown Supply Current

IOFF

SHDN=GND, VIN=5.5V

µA

VIH

2.5V < VIN < 5.5V

1.6

SHDN Input Threshold

VIL

2.5V < VIN < 5.5V

0.6

SHDN Input Bias Current

I SHDN

SHDN=GND or IN

100

POWER-OK

POK Output Low Voltage

VOL

Sinking 2mA

Operating Voltage Range for Valid

POK Output

Sinking 100µA

1.0

5.5

Output High Leakage Current

VPOK=5.5V

100

Threshold

Rising edge, referred to VOUT

Note 1. Dropout voltage is :VIN - VOUT. For 2.25V ≤ VOUT ≤ 4V, dropout voltage limits are linearly interpolated from the

values listed. For VOUT < 4V, dropout voltage limit is equal to the value for VOUT = 4V.

2. Specifications to -40°C are guaranteed by design, not production tested.

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