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RT7264E

Richtek
Part Number RT7264E
Manufacturer Richtek
Description Synchronous Step-Down Converter
Published Sep 20, 2013
Detailed Description ® RT7264E 4A, 21V, 500kHz Synchronous Step-Down Converter General Description The RT7264E is a synchronous step-down re...
Datasheet PDF File RT7264E PDF File

RT7264E
RT7264E

Overview
® RT7264E 4A, 21V, 500kHz Synchronous Step-Down Converter General Description The RT7264E is a synchronous step-down regulator with an internal power MOSFET.
It achieves 4A of continuous output current over a wide input supply range with excellent load and line regulation.
Current mode operation provides fast transient response and eases loop stabilization.
Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
An adjustable soft-start reduces the stress on the input source at startup.
The RT7264E requires a minimal number of readily available external components, providing a compact solution.
Features z z z z z z z z z z z Wide Input Range : 4.
5V to 21V Adjustable Output from 0.
808V to 15V 4A Output Current 120mΩ/40mΩ Internal Power MOSFET Switch Internal Compensation Minimizes External Parts 500kHz Fixed Switching Frequency Synchronized External Clock from 300kHz to 2MHz Adjustable Soft-Start Cycle-by-Cycle Over Current Limit Thermal Shutdown Protection Available in SOP-8 (Exposed Pad) and 14-Lead WDFN Packages RoHS Compliant and Halogen Free Ordering Information RT7264E Package Type QW : WDFN-14L 4x3 (W-Type) SP : SOP-8 (Exposed Pad-Option 2) Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) Note : Richtek products are : ` z Applications z z z z Distributive Power Systems Battery Charger DSL Modems Pre-Regulator for Linear Regulators RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
` Simplified Application Circuit VIN CIN Chip Enable BOOT RT7264E SW EN/SYNC VCC CC GND FB RT R1 R2 COUT CBOOT L VOUT VIN Copyright © 2012 Richtek Technology Corporation.
All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7264E-00 November 2012 www.
richtek.
com 1 Free Datasheet http://www.
datasheet4u.
com/ RT7264E Marking Information RT7264EZQW 03 : Product Code YMDNN : Date Code Pin...


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