AP450
2 Channel Linear Controller with Enable Function


This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 1.1 Sep 7, 2004
1/6

„ Features

- 2 Channel Linear Control Circuitries
- Operating voltage can be up to 20V
- Under voltage Lockout (UVLO) Protection
- Current Limit
- Over Voltage Protection
- Power Good Function
- 1.25V/0.8V internal voltage reference
- 8-pin PDIP and SOP Pb-Free packages

„ Applications

- Backlight inverter
- LCD Monitor
- XDROM, XDSL Product

„ General Description

The AP450 series integrates two channel linear
controllers into a single chip, mainly designs for
power-supply regulator. All the functions included
an on-chip 1.25V/0.8V reference output, error
amplifier, UVLO, current limit. During low VCC
situation, the UVLO makes sure that the outputs
are off until the internal circuit is operational
normally.




„ Pin Assignment

SOP-8L/PDIP-8L
1
2
3
45
6
7
8
(Top View)
EN1/2
FB1
AP450
OUT1
FB2
OUT2
V
REF
GND Vcc


„ Pin Descriptions

Pin
Name
Pin
No.
Description
GND 1 Signal Ground
EN1/2 2 Channel 1/2 Enable Pin
OUT1 3 Linear Controller CH1output
FB1, 2 4, 5 Voltage Feedback
OUT2 6 Linear Controller CH2 output
V
REF
7 1.25V/0.8V Output
Vcc 8 Supply Voltage




„ Ordering Information
AP450 X X X
Package Packing
N: PDIP-8L
S: SOP-8L
Blank: Tube
A : Taping
Bandgap Version
A: 1.25V
BG
B: 0.8V
BG