UD05123

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 4

www.unisonic.com.tw

QW-R115-021.E



ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

VIN Pin Voltage

VIN

6

V

Feedback Pin Voltage

VFB

VCC

V

EN Pin Voltage

VEN

VCC

V

Switch Pin Voltage

VSW

VCC

V

Junction Temperature

TJ

+125

°C

Operation Temperature Range

TOPR

-40 ~ +85

°C

Storage Temperature Range

TSTG

-40 ~ +150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

θJA

280

°C/W



ELECTRICAL CHARACTERISTICS (VIN=VEN=3.6V, TA=25°C, unless otherwise specified) (Note 1)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Voltage Range (Note 2)

VIN

2.5

5.5

V

Feedback Voltage

VFB

VFB=0.6V

0.5880 0.6000 0.6120

V

Feedback Bias Current

IFB

VFB=0.65V

-30

+30

nA

Quiescent Current

ICC

VFB=1V

50

90

μA

Shutdown Supply Current

ISD

VEN=0V

0.1

1

μA

Switching Current Limit

ILIMIT

VIN=5V

1.8

A

Oscillation Frequency

FOSC

SW pin

2.25

MHz

RDS(ON) of P-CH MOSFET

RDSON

IOUT=1.0A

0.26

0.33

Ω

RDS(ON) of N-CH MOSFET

RDSON

IOUT=1.0A

0.26

0.33

Ω

EN Pin Logic Input Threshold Voltage

VENL

0.6

V

VENH

1.3

V

EN Pin Input Current

IEN

±0.1

±1

µA

Note: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and

characterization.