AP2007

Features:

- Single 4.5V to 20V Supply Application
- 0.8V + 2.0% Voltage Reference
- Virtual Frequency ControlTM
- Fast Transient Response
- Synchronous Operation for High Efficiency (93%)
- Short Circuit Protect
- Small Size with Minimum External Components
- Soft Start and Enable Functions
- Under Voltage Lockout Function
- SOP-8L Pb-Free Package


Application

- Microprocessor Core Supply
- Low Cost Synchronous Applications
- Voltage Regulator Modules (VRM)
- Networking Power Supplies
- Sequenced Power Supplies
- Telecommunication Power Supplies.


Specifications

Symbol		Max.	Unit
VIN	VCC, BSTL to GND	-1 to 22	V
VPHASE	PHASE to GND	-1 to 22	V
VDRVP	DRVP to GND	-1 to 22	V
VDRVN	DRVN to GND	-1 to 22	V
JC	Thermal Resistance Junction to Case	90	oC/W
JA	Thermal Resistance Junction to Ambient	250	oC/W
TOP	Operating Temperature Range	-40 to +85	oC
TST	Storage Temperature Range	-65 to +150	oC
TLEAD	Lead Temperature (Soldering) 10 Sec.	300	oC

Description

The AP2007 is a low-cost, full featured, synchronous voltage-mode controller designed for use in single ended power supply applications where efficiency is of primary concern. Synchronous operation allows for the elimination of heat sinks in many applications. The AP2007 is ideal for implementing DC/DC converters needed to power advanced microprocessors in low cost systems or in distributed power applications where efficiency is important. High-side drive circuitry, and preset shoot-thru control, allows the use of inexpensive 1P+1N-channel power switches.

AP2007's features include temperature compensated voltage reference, Virtual Frequency ControlTM method to reduce external component count, an internal 200KHz virtual frequency oscillator, under-voltage lockout protection, soft-start, shutdown