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XC9303 Datasheet(PDF) 2 Page - Torex Semiconductor

Part # XC9303
Description  High Efficiency, Synchronous Step-Up & Down DC / DC Controller ICs
PDF  20 Pages
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC9303 Datasheet(HTML) 2 Page - Torex Semiconductor

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XC9303 Series
■
PIN CONFIGURATION
■
PIN ASSIGNMENT
■
PRODUCT CLASSIFICATION
●
Ordering Information
1 EXT1
2 VDD
3 PWM
FB 6
GND 7
EXT2 8
4 CE
NC 5
MSOP-8A
(TOP VIEW)
PIN NUMBER
PIN NAME
FUNCTIONS
1
EXT 1 /
External Transistor Drive Pin <Connected to High Side of P-ch Power MOSFET Gate>
2
VDD
Supply Voltage
3
PWM
PWM/PFM Switching Pin <PWM control when connected to VDD, PWM / PFM auto
switching when connected to Ground. >
4
CE
Chip Enable Pin <Connected to Ground when output is stand-by mode. Connected to
VDD when output is active. EXT/1 is high and EXT2/ is low when in stand-by mode. >
5
NC
No Connection
6
FB
Output Voltage Monitor Feedback Pin <Threshold value: 0.9V. Output voltage can be set
freely by connecting split resistors between VOUT and Ground. >
7
GND
Ground
8
EXT2
External Transistor Drive Pin <Connected to Low side of N-ch Power MOSFET Gate>
XC9303 ①②③④⑤⑥
DESIGNATOR
DESCRIPTION
SYMBOL
DESCRIPTION
①
Type of DC/DC Controller
B
: Standard type
② ③
Output Voltage
09
: FB Voltage: 0.9V
④
Oscillation Frequency
3
: 300kHz
⑤
Package
K
: MSOP-8A
R
: Embossed tape, standard feed
⑥
Devise Orientation
L
: Embossed tape, reverse feed



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