XC9503 datasheet(2/32 Pages) TOREX

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XC9503 Series

PIN NUMBER

PIN NAME

FUNCTIONS

EXT 1

Channel 1: External Transistor Drive Pin <Connected to P-ch Power MOSFET Gate>

VDD

Supply Voltage

FB1

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.>

PWM1

Channel 1: PWM/PFM Switching Pin <Control Output 1. PWM control when connected to

VDD, PWM / PFM auto switching when connected to Ground. >

EN1

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 high when in stand-by mode.>

EN2

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.>

PWM2

Channel 2: PWM/PFM Switching Pin <Control Output 2. PWM control when connected to

VDD, PWM / PFM auto switching when connected to Ground.>

FB2

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.>

GND

Ground

EXT2

Channel 2: External Transistor Drive Pin <Connected to P-ch Power MOSFET Gate>

DESIGNATOR

DESCRIPTION

SYMBOL

DESCRIPTION

①

Type of DC/DC Controller

: Standard type (10 Pin)

②

③

Output Voltage

: FB products→②=0, ③=9 fixed

: 180kHz (custom)

: 300kHz

④

Oscillation Frequency

: 500kHz (custom)

: MSOP-10

⑤

Package

: USP-10

: Embossed tape, standard feed

⑥

Device Orientation

: Embossed tape, reverse feed

■

PIN CONFIGURATION

■

PIN ASSIGNMENT

MSOP-10

(TOP VIEW)

USP-10

(BOTTOM VIEW)

■

PRODUCT CLASSIFICATION

●

Ordering Information

XC9503①②③④⑤⑥

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