Update: 29 September, 2023
The XC9502 series is a PWM controlled, PWM/PFM automatic switching controlled, multi-functional, 2 channel step-up and down DC/DC controller ICs. It has a standard voltage supply internal of 0.9V, and the output 1 voltage (step-up DC/DC controller) can be set freely within a range of 1.5V to 30V using externally connected components. The output 2 (step-down DC/DC controller) has a built-in 0.9V reference voltage (accuracy ± 2%), and can be set from 0.9V to 6.0V using external components. With a switching frequency of 180kHz, the size of the external components can be reduced. Switching frequencies of 300kHz and 500kHz are also available as custom-designed products. The control of the XC9502 series can be switched between PWM control and PWM/PFM automatic switching control using external signals. When automatic switching is selected, the control switches from PWM to PFM during light loads, and the series is highly efficient from light loads through to large output currents. Noise is easily reduced with PWM control as the frequency is fixed. The series provides freedom of control selection so that control suited to the application can be selected. The soft-start time is internally set to 10msec (Output1) and offers protection against in-rush currents when the power is switched, preventing voltage overshoot.
File format: PDF
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MD5 Checksum: 6C60D750E9A2CFBBBBBFDC68C8CD3AA1
Publication date: 19 March, 2012
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PDF Link: Torex XC9502Series 2ch.Step-Up/Down DC/DC Controller ICs Manual PDF