AP6015

High Efficiency Step-Down Low Power DC-DC Converter

AP6015 Rev. 3

12 of 18

FEBRUARY 2009

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Enable

(EN)

When EN is on logic low, the AP6015 goes into shutdown mode. In shutdown, all other functions are turned

off. The supply current is reduced to 1uA (Typ.).

Soft Start

As the enable pin goes high, the soft-start function generates an internal voltage ramp. This causes the

start-up current to slowly raise preventing output voltage overshoot and high inrush currents. The soft-start

duration is typical 1mSec.

AP6015

START-UP

TIME

Under Voltage Lock Out

(UVLO)

0V

1.6V

3.6V

2.5V

0V

Vcc

Vout

UVLO

Application Information