UPD16901GS 查看數據表（PDF） - NEC => Renesas Technology

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UPD16901GS

FLASH MEMORY VOLTAGE STEPUP DC/DC CONVERTER IC

NEC => Renesas Technology 

µPD16901

STANDARD CONNECTION DIAGRAM

4.5 V to 5.5 V

ON/OFF

+

CIN

33 µ F

CT 0.1 µ F

VIN

CDLY

0.1 µ F C1

C2

0.1 µ F

C1H C1L C2

L

33 µH

Reference

voltage circuit

Startup Timer latch short-circuit Charge pump

circuit protection circuit

circuit

β

FB

F/F

Oscillation

circuit

Overcurrent

detection circuit

RT

68 kΩ

SW

GND

D

VSW

C.S.

+ 15 µF

COUT

RCS

0.3 Ω

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

Output voltage

Input stability

Load stability

Conversion efficiency

Operating circuit current

Standby circuit current

Startup voltage

Symbol

VOUT

REGIN

REGL

η

ICC

ICC(OFF)

VIN(start-up)

Condition

4.5 V ≤ VIN ≤ 5.5 V

0 mA ≤ IO ≤ 140 mA

0 ˚C ≤TA ≤ 60 ˚C

4.5 V ≤ VIN < 5.5 V

0 mA ≤ IO < 140 mA

IO = 0

ON/OFF pin voltage = 0

MIN. TYP. MAX. Unit

11.52 12.00 12.48

V

0.5

%/V

0.004

%/mA

83

%

3.0

mA

100

µA

3.7

4.3

V

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.

7

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