UC3656

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 7

www.unisonic.com.tw

QW-R502-469.b

ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Power Supply Voltage

-0.3 ~ +6.0

V

Input Pin Voltage

RUN,FB

V

SW

V

P-Channel Switch Source Current (DC)

1000

mA

N-Channel Switch Sink Current (DC)

1000

mA

Peak SW Sink and Source Current

1.5

A

Junction Temperature

+150

°C

Operating Temperature

-20 ~ +85

°C

Storage Temperature

-55 ~ +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

165

°C/W

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

Input Supply Range

2.5

5.5

V

Quiescent Current (Note)

300

µA

Current In Standby Mode

0.5

1

µA

Feedback Voltage

0.588

0.6

0.612

V

Feedback Voltage Line-Regulation

0.1

0.5

%

Feedback Variation with Temperature

0.5

1.0

%

Feedback Current

±200

nA

Peak Inductor Current (Note)

1.10

1.25

1.50

A

Maximum Output Current (Note)

800

mA

Oscillator Frequency

FB=0.8V

0.8

1.0

1.2

FB=0V

200

0.4

0.5

Ω

0.35

0.45

Ω

SW Leakage Current

±0.1

±1

µA

RUN Threshold

0.3

1.0

1.5

V

RUN Leakage Current

±0.1

±1

µA

Note:

L

t

)

V

V

(

I

I

I

I

ON

OUT

IN

O

O

PK

×

×

−

+

=

Δ

+

=

2

2