AP6015

High Efficiency Step-Down Low Power DC-DC Converter

AP6015 Rev.

2

3 of 18

AUGUST 2008

www.diodes.com

Block Diagram

+

-

PWM-COM

-

BANDGAP

Osc

Vramp

Current

Protection

-

+

ER-AMP

Buffer

-

+

PG_COM

UVLO

Open drain

TS

Bias

LX

FB

FB

PG

PG

CE

EN

CC

CC

PVCC

PGND

VCC

PGND

GND

PVCC

Vref=0.8V

Notes:

3. The adjustable output voltage version does not use the internal feedback resistor divider.

The FB pin is directly connected to the error amplifier.

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

ESD HBM

Human Body Model ESD Protection

2.5

KV

ESD MM

Machine Model ESD Protection

300

V

PVCC, VCC

Supply Voltage

-0.3 to +5.5

V

Voltages on pins EN, CC, PG, FB, LX

V

Maximum Junction Temperature Range

+150

Storage temperature range

-65 to +150

Operating Junction Temperature Range

-40 to +125

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device.

These are stress ratings only and functional

operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.

Exposure to

absolute-maximum-rated conditions for extended periods ma affect device reliability.