UD05201

Advance

CMOS IC

UNISONIC TECHNOLOGIES CO., LTD

4 of 5

www.unisonic.com.tw

QW-R115-003.c



ABSOLUTE MAXIMUM RATING (T

A=25°C, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

PVIN, SVIN Pin Voltage

VIN

VSS -0.3 to VSS+ 6

V

Feedback Pin Voltage

VFB

VSS -0.3 to VIN+ 0.3

V

EN Pin Voltage

VEN

VSS -0.3 to VIN+ 0.3

V

Switch Pin Voltage

VLX

VSS -0.3 to VIN+ 0.3

V

Power Dissipation

PD

700

mW

Junction Temperature

TJ

+125

°C

Operating 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

RATING

UNIT

Junction to Ambient

θJA

143

°C/W

Junction to Case

θJC

45

°C/W

Note:

θJA is measured with the PCB copper area of approximately 1 in

2(Multi-layer). That need connect to LX pin or

Exposed pad of the UTC UD05201.



ELECTRICAL CHARACTERISTICS (V

IN=VEN=3.6V, TA=25°C, unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Supply Voltage Range

VIN

2.6

5.5

V

Feedback Voltage

VFB

TA=+25°C

0.5880 0.6000 0.6120

V

TA=0°C ≤TA≤85°C

0.5865 0.6000 0.6135

V

TA=-40°C ≤TA ≤85°C

0.5820 0.6000 0.6180

V

Feedback Bias Current

IFB

VFB=0.65V

±30

nA

Quiescent Current

ICCQ

VFB=0.8V

250

400

uA

Shutdown Supply Current

ISD

VEN=0V

0.1

1

uA

Switching Current Limit

ILIMIT

2.2

2.5

A

Line Regulation

△ VOUT / VOUT VIN=2.6V~5.5V

0.04

0.4

%/V

Load Regulation

△ VOUT / VOUT IOUT= 0.01~2A

0.5

1

%

Oscillation Frequency

FOSC

LX pin

1

1.2

1.4

MHz

RDS(ON) of P-CH MOSFET

RDSON

VFB=0V,IOUT=1A

0.15

0.25

Ω

RDS(ON) of N-CH MOSFET

RDSON

Guaranteed by design

0.11

0.20

Ω

EN Pin Logic Input

Threshold Voltage

VENL

0.4

V

VENH

1.5

EN Pin Input Current

IEN

±0.1

±1

uA

Efficiency

EFFI

VIN=5V, VOUT=3.3V,IOUT=1.5A

91

%

Thermal Shutdown

TSD

140

°C

Thermal Shutdown Hysteresis

TSH

30

°C