Description：

The TPS56C230 is a high efficiency synchronousbuck converter with integrated FETs. Systemdesigners can use the device in a wide variety ofapplications since it draws low standby current andrequires few external components.The TPS56C230 employs D-CAP3 control thatprovides fast transient response and excellent lineand load regulation with internal compensation. It alsohas a proprietary circuit that enables the device tosupport low equivalent series resistance (ESR) outputcapacitors such as specialty polymer and ultra-lowESR ceramic capacitors.TPS56C230‘s MODE pin can be used to set Ecomode or FCCM mode for light-load operation. Ecomode maintains high efficiency during light loadoperation, and FCCM mode operations keeps outputripple small at light load. The device supports bothinternal and external soft-start time option. It has aninternal fixed soft-start time 1.2 ms, but if theapplication needs a longer soft-start time, the externalSS pin can be used to achieve it by connecting aexternal capacitor.The TPS56C230 integrates power good indicator andprovides output discharge function. It providescomplete protection including OVP, UVP, OCP, OTPand UVLO. The device is available in a 20-pin 3.0-mm x 3.0-mm HotRod package and the junctiontemperature is specified from –40°C to 125°C.

Features：

• Input voltage range: 4.5 V to 18 V

• Output voltage range: 0.6 V to 5.5 V

• Supports 12-A continuous output current

• D-CAP3™ architecture control for fast transientresponse

• ±1% feedback voltage accuracy (25°C)

• Integrated 17-mΩ and 5.9-mΩ FETs

• Selectable Eco-mode™ and Forced ContinuousConductive Mode (FCCM) by MODE pin

• 500-kHz switching frequency

• Adjustable soft-start time with default 1.2 ms

• Integrated Power Good indicator

• Built-in output discharge function

• Cycle-by-cycle over current protection

• Non-latched over-voltage, under-voltage, overtemperature and under voltage lock-outprotections

• -40°C to 125°C Operating Junction Temperature

• 20-pin 3.0-mm × 3.0-mm HotRod™ VQFNpackage

• Pin to pin compatible with 8-A TPS568230

• Create a Custom Design Using the TPS56C230With the WEBENCH® Power Designer

Applications：

• DTV and Set-top box

• PC and Industrial PC

• Wired networking

• Distributed power systems