UPC317 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPC317

3-TERMINAL POSITIVE ADJUSTABLE REGULATOR

NEC => Renesas Technology 

TYPICAL CONNECTION

D2

INPUT

VIN

µPC317

CIN

0.1 µF

+

CADJ

10 µF

ADJ

R2

µPC317

OUTPUT

R1

240 Ω

VO

D1

+

CO

1 µF

Remark R1, R2 : Resistor to set the output voltage.

VO = (1 +

R2

R1

) • VREF

+

IADJ

•

R2

.=.

(1

+

R2

R1

)

•

VREF

VO (V)

1.25

2.5

5.0

12

24

30

R2 (Ω : TYP.)

0

240

720

2064

4368

5520

CIN :

CO :

CADJ :

D1 :

D2 :

Need to stop the oscillation for the long input wiring length.

Need to stop the oscillation for the long output wiring length.

Improve the transient stability of the output voltage when the lord current is suddently changed.

Improve the ripple rejection and the oscillate rejection.

Protect against CADJ from output short.

Need for VIN < VO.

Data Sheet G12826EJ3V0DS00

3

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