DatasheetsPDF.com

RT8251

Richtek
Part Number RT8251
Manufacturer Richtek
Description 570kHz Step-Down Converter
Published Mar 30, 2015
Detailed Description ® RT8251 5A, 24V, 570kHz Step-Down Converter General Description The RT8251 is a monolithic step-down switch mode conv...
Datasheet PDF File RT8251 PDF File

RT8251
RT8251

Overview
® RT8251 5A, 24V, 570kHz Step-Down Converter General Description The RT8251 is a monolithic step-down switch mode converter with a built-in internal power MOSFET.
It achieves 5A 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.
The RT8251 provides protection functions such as cycle-by-cycle current limiting and thermal shutdown.
In shutdown mode, the regulator draws 25μA of supply current.
Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup.
The RT8251 requires a minimum number of external components.
The RT8251 is available in WQFN-16L 3x3 and SOP-8 (Exposed Pad) packages.
Pin Configurations (TOP VIEW) Features z Wide Operating Input Voltage Range : 4.
75V to 24V z Adjustable Output Voltage Range : 0.
8V to 15V z Output Current up to 5A z 25μA Low Shutdown Current z Internal Power MOSFET : 70mΩ z High Efficiency up to 95% z 570kHz Fixed Switching Frequency z Stable with Low ESR Output Ceramic Capacitors z Thermal Shutdown Protection z Cycle-By-Cycle Over Current Protection z RoHS Compliant and Halogen Free Applications z Distributed Power Systems z Battery Charger z DSL Modems z Pre-regulator for Linear Regulators FB VIN COMP VIN EN SW SS SW 16 15 14 13 VIN VIN VIN GND 1 2 3 4 GND 17 12 SW 11 SW 10 SW 9 BOOT 5678 WQFN-16L 3x3 BOOT VIN SW GND 8 27 GND 36 9 45 SS EN COMP FB SOP-8 (Exposed Pad) Ordering Information RT8251 Package Type QW : WQFN-16L 3x3 (W-Type) SP : SOP-8 (Exposed Pad-Option 1) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Richtek products are : ` RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Copyright ©2013 Richtek Technology Corporation.
All rights reserved.
DS8251-04 February 2013 is a registered trademark of Richtek Technology...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)