XC9503B093AR-G

• Product Introduction

XC9503B093AR-G dual-channel step-down DC/DC controller

The XC9502 series is a PWM-controlled, PWM/PFM auto-switching, general-purpose, dual-channel buck-boost/buck DC/DC conversion controller IC. Through the internal 0.9V (±2%) standard reference voltage, the output 1 voltage (boost controller) can be freely set in the range of 1.5V~30V using external devices; Output 2 voltage (step-down controller) can be freely set in the range of 0.9V~6.0V. , switching frequency up to 180kHz, and small peripheral devices can be used. Customer-specific products with 300kHz and 500kHz switching frequencies are also available. The control mode of the XC9502 series can be selected between PWM control and PWM/PFM automatic switching control via external signals. When automatic switching control is selected, it can automatically switch from PWM to PFM at light loads, resulting in high efficiency over the entire load range. In the PWM mode at a fixed frequency, the output noise can be easily reduced. The XC9502 series offers a choice of control modes to suit the application. The soft-start time is internally set to 10 milliseconds (output 1) to prevent inrush current and overshoot voltage when the power is turned on.

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