KA317HV 参数 Datasheet PDF下载

KA317HV

Typical Application

V

I

Input

Ci

0. 1µF

µ

VI

KA317HV

KA317

Vadj

Vo

Output

R

1

I

adj

R

2

I

adj

Co

1µF

µ

V

O

= 1.25V (1+ R

2

/ R

1

)+I

adj

R

2

Figure 5. Programmable Regulator

C

i

is required when regulator is located an appreciable distance from power supply filter.

C

o

is not needed for stability, however, it does improve transient response.

Since I

ADJ

is controlled to less than 100µA, the error associated with this term is negligible in most applications.

4