UPD16901GS datasheet(7/12 Pages) NEC

7 / 12 page

µPD16901

STANDARD CONNECTION DIAGRAM

VIN

CDLY

C1H

C1L

GND

C.S.

VSW

F/F

Reference

voltage circuit

Startup

circuit

Timer latch short-circuit

protection circuit

Charge pump

circuit

Overcurrent

detection circuit

Oscillation

circuit

4.5 V to 5.5 V

ON/OFF

CIN

33 F

0.1 F

68 k

Ω

0.3

Ω

RCS

COUT

33 H

15 F

Remark The circuit constants and circuit configuration in this connection diagram are shown for illustrative

purposes and not intended for volume production design.

ELECTRICAL SPECIFICATIONS

(as per standard connection diagram. TA = 25 ˚C, VIN = 5 V, IOUT = 140 mA unless specified otherwise)

Item

Symbol

Condition

MIN.

TYP.

MAX.

Unit

Output voltage

VOUT

4.5 V

≤ VIN ≤ 5.5 V

11.52

12.00

12.48

0 mA

≤ IO ≤ 140 mA

0 ˚C

≤TA ≤ 60 ˚C

Input stability

REGIN

4.5 V

≤ VIN < 5.5 V

0.5

%/V

Load stability

REGL

0 mA

≤ IO < 140 mA

0.004

%/mA

Conversion efficiency

Operating circuit current

ICC

IO = 0

3.0

Standby circuit current

ICC(OFF)

ON/OFF pin voltage = 0

100

µA

Startup voltage

VIN(start-up)

3.7

4.3

Remark These specifications are reference values confirmed with the standard connection diagram (without

taking account of variations) and are not intended to guarantee the characteristics of the product as a

DC/DC converter.

UPD16901GS Datasheet(PDF) 7 Page - NEC

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