XC9502 Series
2ch. Step-up / down DC/DC Controller ICs
!
Pin Configuration
1 EXT1
2 VDD
3 FB1
4 PWM1
5 EN1
EXT2 10
GND 9
FB2 8
PWM2 7
EN2 6
MSOP-10
(TOP VIEW)
!
Pin Assignment
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
PIN NAME
EXT 1
V
DD
FB1
PWM1
EN1
EN2
PWM2
FB2
GND
EXT2/
FUNCTIONS
Channel 1: External Transistor Drive Pin <Connected to Nch Power MOSFET Gate>
Supply Voltage
Channel 1 : Output Voltage Monitor Feedback Pin <Threshold value : 0.9V. Output voltage
can be set freely by connecting split resistors between VOUT1 and Ground.>
Channel 1 : PWM/PFM Switching Pin <Control Output 1. PWM control when connected to
V
DD
, PWM / PFM auto switching when connected to Ground. >
Channel 1 : Enable Pin <Connected to Ground when Output 1 is in stand-by mode.
Connected to VDD when Output 1 is active. EXT1 is low when in stand-by mode.>
Channel 2 : Enable Pin <Connected to Ground when Output 2 is in stand-by mode.
Connected to VDD when Output 2 is active. EXT2/ is high when in stand-by mode.>
Channel 2 : PWM/PFM Switching Pin <Control Output 2. PWM control when connected to
VDD, PWM / PFM auto switching when connected to Ground.>
Channel 2 : Output Voltage Monitor Feedback Pin <Threshold value : 0.9V. Output voltage
can be set freely by connecting split resistors between VOUT2 and Ground.>
Ground
Channel 2 : External Transistor Drive Pin <Connected to Pch Power MOSFET Gate>
!
Ordering Information
XC9502
123456
DESIGNATOR
SYMBOL
DESCRIPTION
Standard (10 Pin)
FB Voltage
0.9V
Switching Frequency
180kHz
300kHz (custom)
500kHz (custom)
Package
Embossed Tape
Embossed Tape
MSOP-10
Standard Feed
Reverse Feed
1
2
3
4
5
6
B
0
9
2
3
5
A
R
L
2
TOREX [ TOREX SEMICONDUCTOR ]
