AP1530

PWM CONTROL 3A STEP-DOWN CONVERTER

AP1530 Rev. 1

6 of 8

MARCH 2007

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Typical Performance Characteristics

(Continued)

AP1530 Vout Ripple

(Vin=12V; Vout=3.3V; Iout=0.1A)

AP1530 Vout Ripple

(Vin=12V; Vout=3.3V; Iout=3A)

Test Circuit

A

FB

VCC

VSS

EN

open

open

FB

VCC

VSS

EN

+

-

OUTPUT

OUTPUT

A

FB

VCC

VSS

EN

+

-

+

-

V

OUTPUT

OCSET

OCSET

OCSET

Enable function test

Feedback function test

Operation function test

1K~3K

1K~3K

1K~3K

Note:

3. For the Rocset selection, please refer to the formula in Function Description.