Data Sheet
340kHz, 3A Synchronous DC-DC Buck Converter
AP3503F
Functional Block Diagram
2
IN
SHUTDOWN
COMPARATOR
1.5V
VA
INTERNAL
REGULATOR
VB
CURRENT
SENSE
AMPLIFIER
SLOP
COMP
VA
+
0.3V
OSCILLATOR
90k/340k
SCP
1
BS
M1
CLK
S
R
Q
Q
3
4
LOCK
COMPARATOR
SW
PWM
7
EN
SS
COMPARATOR
M2
2.5V
VB
1.3V
GND
6
A
8
EA
5
6
0. 925V
FB
COMP
Figure 3. Functional Block Diagram of AP3503F
Ordering Information
AP3503F
-
Circuit Type
G1: Green
Package
MP: PSOP-8
TR: Tape & Reel
Blank: Tube
Temperature
Package
Range
Part Number
Marking ID
Packing Type
AP3503FMP-G1
3503FMP-G1
3503FMP-G1
Tube
PSOP-8
-40 to 85°C
AP3503FMPTR-G1
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant
and green.
Oct. 2012 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
3
DIODES [ DIODES INCORPORATED ]
