Datasheet4U Logo Datasheet4U.com

XC9511 Datasheet Synchronous Step-down DC/dc Converter

Manufacturer: Torex Semiconductor

Overview: .. XC9511 Series Synchronous Step-Down DC/DC Converter with built-in LDO Regulator in parallel plus Voltage Detector Preliminary ! Synchronous step-down DC/DC converter with built-in LDO regulator plus voltage detector February 2, 2004 V5 ! Step-down DC/DC converter's output connected in parallel with LDO regulator ! ! ! ! SOP-8 package for high current Small-footprint Output Current (DC/DC : 800mA, VR : 400mA) Ceramic capacitor patible (Low ESR capacitors) ! APPLICATIONS " CD-R / RW, DVD " HDD " PDAs, portable munication modem " Cellular phones " Palmtop puters " Cameras, video recorders !

General Description

The XC9511 series consists of a step-down DC/DC converter and a high-speed LDO regulator connected in parallel with the DC/DC converter's output.

A voltage detector is also built-in.

Since the input for the LDO voltage regulator block es from the input power supply, it is suited for use with various applications.

Key Features

  • Input Voltage Range : Load Capacitors : 2.4V ~ 6.0V Ceramic Capacitor Compatible (Low ESR Capacitors) VD Function : Detects output voltage from the VDOUT pin while sensing either VDD, DCOUT, or VROUT internally. Nch Open Drain Output Output Voltage Range : 0.9V ~ 4.0V (Accuracy ±2%) Output Current : Controls : 800mA PWM Control PWM, PWM / PFM Automatic Switching External Oscillation Frequency : 300kHz, 600kHz, 1.2MHz Output Voltage Range : 0.9V ~ 4.0V (Accuracy ±.

XC9511 Distributor