Diodes AP3435 - Manual (Page 3)

Preliminary Datasheet
1.0MHz, 3.5A, Synchronous Step Down DC-DC Converter AP3435
Dec. 2012 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
3
Functional Block Diagram
Over-Current
Comparator
Bias
Generator
Saw-Tooth
Generator
Oscillator
Soft
Start
Bandgap
Reference
Current
Sensing
Control
Logic
Buffer &
Dead Time
Control
Logic
+
Reverse Inductor
Current Comparator Over Voltage
Comparator
Modulator
Error
Amplifier
_
+
+
+
+
PGND
EN
FB
SW
5
VIN
8
7
6
4
VCC
1
GND
3
_
_
_
Figure 3. Functional Block Diagram of AP3435
Ordering Information
AP3435 -
Circuit Type
Package
MP: PSOP-8
BCD Semiconductor's Pb-free products, as designated with "G1" in the part number, are RoHS compliant and
green.
Package
Temperature
Range
Part Number Marking ID Packing Type
PSOP-8 -40 to 80°C AP3435MPTR-G1 3435MP-G1 Tape & Reel
G1: Green
TR: Tape & Reel