UD05124

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LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 9

www.unisonic.com.tw

QW-R115-038.c



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

VIN to GND

-0.3V ~ +6.5V

V

LX to GND

-0.3V to (VIN +0.3V)

V

Dynamic LX Voltage in 20ns Duration

-4.5V ~ +7.5V

V

EN, FB to GND

-0.3V to VIN

V

Junction Temperature

TJ

+150

°C

Storage Temperature

TSTG

-65 ~ +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.



RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage (VIN)

VIN

+2.5 ~ +6

V

Operation Temperature Range

TOPR

-40 ~ +85

°C



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

θJA

250

°C/W

Junction to Case

θJC

130

°C/W



ELECTRICAL CHARACTERISTICS (VIN=5V, VOUT=2.5V, TA=25°C, unless otherwise specified.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Supply Voltage

VIN

2.5

6.0

V

Input Over Voltage Protection

VIN OVP

6.3

V

Shutdown Current

ISHDN

EN=0V

0.1

1

μA

Quiescent Current

Iq

VFB=0.65V, IOUT=0A

30

50

μA

Reference Voltage

VREF

0.588

0.6

0.612

V

FB Input Leakage Current

IFB

VFB=VIN

0.01

1

µA

On-Resistance (Note)

RDS(ON)

P-Channel MOSFET

340

mΩ

N-Channel MOSFET

210

mΩ

P-Channel Current Limit (Note)

ILIM

1.5

A

EN High-Level Input Voltage

VEN(H)

1.5

V

EN Low-Level Input Voltage

VEN(L)

0.4

V

EN Input Current

IEN

2.5

µA

Under Voltage Lockout Voltage

UVLO

2.4

V

UVLO Hysteresis

VHYS

0.3

V

Oscillation Frequency

FOSC

IOUT=200mA

1.2

1.5

1.8

MHz

Minimum On Time

50

ns

Maximum Duty Cycle

100

%

Internal Soft Start Time

TSS

1

ms

LX Discharge Resistance

100

Ω

Thermal Shutdown Temperature (Note)

TSD

150

°C

Note: Guarantee by design.