Ap6015, Application information – Diodes AP6015 User Manual
Page 12
AP6015
High Efficiency Step-Down Low Power DC-DC Converter
AP6015 Rev. 3
12 of 18
FEBRUARY 2009
www.diodes.com
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Diodes Incorporated
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)
The UVLO prevents the converter from turning on when the voltage on V
CC
is less than typically 1.6V.
0V
1.6V
3.6V
2.5V
0V
Vcc
Vout
UVLO
Application Information