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XC9247

Torex Semiconductor
Part Number XC9247
Manufacturer Torex Semiconductor
Description 16V Driver Transistor Built-In Step-Down DC/DC Converters
Published Feb 14, 2013
Detailed Description XC9246/XC9247 Series ETR05024-006 16V Driver Transistor Built-In Step-Down DC/DC Converters ■GENERAL DESCRIPTION ☆Gr...
Datasheet PDF File XC9247 PDF File

XC9247
XC9247

Overview
XC9246/XC9247 Series ETR05024-006 16V Driver Transistor Built-In Step-Down DC/DC Converters ■GENERAL DESCRIPTION ☆GreenOperation-compatible XC9246/XC9247 series is a 16V step-down DC/DC converter with a built-in driver transistor.
The series provides high efficiency, and a stable power supply with output currents up to 1A.
The series is designed for use with small ceramic capacitors.
The series has a 1.
0V reference voltage, and using externally connected resistors, the output voltage can be set freely.
With an internal switching frequency of 1.
2MHz, small external components can be used.
The soft-start time is internally set to 1.
5ms (TYP.
), but can be adjusted to set a longer time using an external resistor and capacitor.
As for operation mode, the XC9246 series is PWM control and the XC9247 series is automatic PWM/PFM switching control.
In PWM/PFM switching control mode, provides fast response, low ripple and high efficiency over the full range of loads (from light load to heavy load).
With the UVLO (Under Voltage Lock Out) function, the internal driver transistor is forced OFF when input voltage becomes lower than detect voltage.
The series includes current limit, thermal shutdown, and short-circuit protection.
Two types of package SOT-26W and USP-6C are available.
■APPLICATIONS ●LCD-TVs ●BD/HDD recorders ●Set top box ●Home video game consoles ●Multifunction printers ■FEATURES Input Voltage Output Voltage Range Output Current Efficiency Oscillation Frequency Maximum Duty Cycle Soft-start Time Control Methods Protection Circuits UVLO Output Capacitor Operating Ambient Temperature Packages Environmentally Friendly : 4.
5V～16V (The VIN range depends on the product) : 1.
2V～5.
6V (VFB=1.
0V) (The VOUT range depends on the product) : 1A (VIN≧6V and VOUT/VIN≦50%) 1A (VIN＜6V and VOUT/VIN≦40%) : 90%(VIN=12V, VOUT=5V, IOUT=200mA) : 1.
2MHz : 80% : Internally fixed 1.
5ms Adjustable by RC : PWM Control (XC9246) PWM/PFM Automatic switching control (XC9247) : Curr...


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