HT1117-33 Ver la hoja de datos (PDF) - Holtek Semiconductor

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componentes Descripción

Fabricante

HT1117-33

1A General Purpose LDO

Holtek Semiconductor 

HT1117 Series

Application Circuits

Basic Circuits

· Variable voltage type

V IN

C1

10mF

V IN

VO UT

H T 1 1 1 7 -A D J

ADJ

V REF

V OUT

R1

C2

125W

10mF

C om m on

IA D J

R2

1kW

S in g le p o in t G N D

C om m on

R2

VOUT = VREF ( 1 + R1 ) + IADJ R2

Note:

C1 is required if the needed if the device is located far from filter capacitors, the recommended value is 10mF.

C2 is required for stability, the recommended value is 10mF.

R1 is required for regulation, the recommended value is 125W.

· Fixed voltage type

V IN

V IN

H T1117

VO UT

V OUT

S e r ie s

C1

GND

C2

10mF

10mF

C om m on

S in g le p o in t G N D

C om m on

Note: C1 is required if the needed if the device is located far from filter capacitors, the recommended value is 10mF.

C2 is required for stability, the recommended value is 10mF.

Typical Application Circuits

· 1.25V~10.5V regulator

2 .7 5 £ V IN £ 1 2 V

C1

10mF

C om m on

V IN

VO UT

H T 1 1 1 7 -A D J

ADJ

V REF

R1

125W

IA D J

R2

1kW

S in g le p o in t G N D

V OUT

C2

10mF

C om m on

Rev. 1.00

4

August 7, 2007

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