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XC9252 - Low Power Consumption Step-down DC/DC Controller

Description

The XC9252 series is a 30V operation step-down DC/DC controller IC.

The external P-ch driver transistor is used to achieve a stable operation under low input voltage.

Low ESR capacitors such as ceramic capacitors can be used for the load capacitor (CL).

Features

  • Input Voltage Range FB Voltage Supply Current Oscillation Frequency External Clocking Synchronous Control Method Soft-Start Protection Circuits Output Capacitor Operating Ambient Temperature Packages Environmentally Friendly : 3.0V~30V (Absolute MAX. Rating: 36V) : 0.8V (±2%) : 30μA (@300kHz) : 280kHz~550kHz (External Resistor) :±25% of the internal clock : PWM control (MODE:H) PWM/PFM (MODE:L) : External set (External C) : Over current limit (External Resistor) Automatic Return (XC9252A/B) Int.

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XC9252 Series Low Power Consumption Step-down DC/DC Controller IC ETR05038-004 ■GENERAL DESCRIPTION The XC9252 series is a 30V operation step-down DC/DC controller IC. The external P-ch driver transistor is used to achieve a stable operation under low input voltage. Low ESR capacitors such as ceramic capacitors can be used for the load capacitor (CL). A 0.8V reference voltage source is incorporated, and the output voltage can be set freely from 1.5V using external resistors (RFB1, RFB2). 280kHz to 550kHz can be selected for the switching frequency by connecting an external resistor to the ROSC pin. The generation of unneeded noise can be reduced by this synchronization with an external CLK within ±25% of the internal clock using the MODE/SYNC pin.
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