Diodes AP3422 - Manual (Page 3)

Preliminary Datasheet
Dual 1.1MHz, 800mA Synchronous DC-DC Buck Converter AP3422
Feb. 2013 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
3
Functional Block Diagram
Shutdown
Control
Slope
Compensation
Oscillator
V
REF
with
Soft-start
PWM
Comparator
Control
Logic
Current Limit
Detector
Current
Sense
Driver
Over
Temperature
Detector
Error
Amplifier
0.6V
EN1, EN2 VIN1, VIN2
SW1,
SW2
GND1, GND2
FB1,
FB2
1, 6
8, 3
2, 7
10,5
9, 4
Figure 3. Functional Block Diagram of AP3422 (Diagram represents ½ of the AP3422)
Ordering Information
AP3422 -
Circuit Type
Package
DN: DFN-3 × 3-10
Package
Temperature
Range
Part Number Marking ID Packing Type
DFN-3×3-10 -40 to 85 ºC AP3422DNTR-G1 BDC Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS
compliant and green.
G1: Green
TR: Tape & Reel