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XC9215

Torex Semiconductor
Part Number XC9215
Manufacturer Torex Semiconductor
Description (XC9215 - XC9217) 500mA Synchronous Step-Down DC/DC Converters
Published May 24, 2008
Detailed Description GO-Compatible Synchronous Step-Down DC/DC High Efficiency :92% Low Ripple Voltage :10mV Output Current :500mA (VIN=3.0V...
Datasheet PDF File XC9215 PDF File

XC9215
XC9215

Overview
GO-Compatible Synchronous Step-Down DC/DC High Efficiency :92% Low Ripple Voltage :10mV Output Current :500mA (VIN=3.
0V, VOUT=1.
8V)* Oscillation Frequency :600kHz, 1.
2MHz www.
DataSheet4U.
com PWM Fixed Control :(XC9215 series) PWM/PFM Automatic Switching Control :(XC9216 series) Manual Selection of Switching Control :(XC9217 series) Maximum Duty Ratio :100% Ceramic Capacitor Compatible Ultra Small Packages :SOT-25, USP-6B APPLICATIONS Mobile phones (PDC, GSM, CDMA, IMT200 etc.
) Bluetooth equipment PDAs Portable communication modem Portable games Cameras Digital cameras Cordless phones Notebook computers FEATURES P-ch Driver Tr.
Built-in :ON resistance 0.
6 N-ch Synchronous Driver Tr.
Built-in :ON resistance 0.
7 Input Voltage Range :2.
0 ~ 6.
0V Output Voltage Range :0.
9V~4.
0V (100mV increments) High Efficiency :92% (TYP.
) (VIN=3.
0V, VOUT=1.
8V, IOUT=100mA)* Output current :500mA (VIN=3.
0V, VOUT=1.
8V)* Oscillation Frequency :600kHz, 1.
2MHz (Fixed frequency accuracy 15%) Ultra Small Packages :SOT-25 USP-6B Soft-start circuit built-in Current limiter circuit built-in (constant current & latching) Low ESR ceramic capacitor compatible * Performance depends on external components and wiring on the PCB.
GENERAL DESCRIPTION The XC9215/9216/9217 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.
6 P-channel driver transistor and 0.
7 N-channel switching transistor, designed to allow the use of ceramic capacitors.
The ICs enable a high efficiency, stable power supply with an output current of 500mA to be configured using only a coil and two capacitors connected externally.
Minimum operating voltage is 2.
0V.
Output voltage is internally programmable in a range from 0.
9V to 4.
0V in increments of 100mV (accuracy: 2.
0%).
With the built-in oscillator, oscillation frequency is selectable from 600kHz and 1.
2MHz to make available the frequency best suited to your particular application.
As for operation mode, the XC9215 series is PWM control, the XC9...


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