TPS566235RJNT

1 Features

· Input voltage range:4.5Vto 18V

· Output voltage range:0.6Vto 7V

· ±1% reference voltage at room temperature

· Supports 6-A continuous output current

· D-CAP3TM architecture control for fast transient response

· Integrated 25-mQ and 12-mQ Ros(on) power FETs

·108-uA low quiescent current

· Selectable Eco-Mode M, Out-Of-Audio TM and FCCM by MODE pin

· Out-Of-Audio Tw light-load operation with switching frequency over 25kHz

· Supports pre-biased start up function

· 600-kHz switching frequency

· Internal 1-ms soft start

· Supports ceramic output capacitors

· Power good indicator

· Cycle-by-cycle valley over current protection

· Non-latched for OC, OV, UV, OT and UVLO protections

·3.0-mm ×2.0-mm HotRod TM VQFN package

· Create a Custom Design Using the TPS566235 With the WEBENCHO Power Designer

2 Applications

· DTV and STB

· Switcher and router

· Server and enterprise SSD

· Surveillance and single board computer

· Distributed power systems

3 Description 

The TPS566235 is a cost effective, high-voltage input, high efficiency synchronous Buck converter with integrated FETs. It enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution.

The TPS566235 employs the D-CAP3TM mode control that provides a fast transient response and good line/load regulation with no external compensation components. It also has a proprietary circuit that enables the device to support low equivalent series resistance(ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors. The control topology supports seamless transition between CCM mode at heavy load conditions and DCM operation at light load conditions. There are three operation modes can be configured by MODE pin at light load: Eco-ModeTM, Out-Of-AudioTM (OOA) and Forced Continuous Conduction Mode (FCCM). The OOA mode is a unique control feature that keeps the switching frequency above audible frequency with minimum reduction in efficiency.

The TPS566235 supports pre-biased start up and power good indicator. It provides complete protection including OVP. UVP. OCP. OTP and UVLO. The device is available in 3.0-mm x 2.0-mm HotRodTM package and the junction temperature is specified from-40℃ to 125℃.

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