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TPS566235

ACTIVE

4.5-V to 18-V, 6-A synchronous buck converter in 2-mm x 3-mm QFN

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPS566231 ACTIVE 3-V to 18-V input, 6-A synchronous step-down voltage regulator with pulse skip mode Upgraded 6-A eco-mode converter product offering more efficiency in a smaller package.

Product details

Vin (min) (V) 4.5 Vin (max) (V) 18 Vout (min) (V) 0.6 Vout (max) (V) 7 Iout (max) (A) 6 Iq (typ) (mA) 0.11 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP3 Duty cycle (max) (%) 88 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 18 Vout (min) (V) 0.6 Vout (max) (V) 7 Iout (max) (A) 6 Iq (typ) (mA) 0.11 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP3 Duty cycle (max) (%) 88 Type Converter
VQFN-HR (RJN) 13 6 mm² 3 x 2
  • Input voltage range: 4.5 V to 18 V
  • Output voltage range: 0.6 V to 7 V
  • ±1% reference voltage at room temperature
  • Supports 6-A continuous output current
  • D-CAP3™ architecture control for fast transient response
  • Integrated 25-mΩ and 12-mΩ RDS(on) power FETs
  • 108-µA low quiescent current
  • Selectable Eco-Mode™, Out-Of-Audio™ and FCCM by MODE pin
  • Out-Of-Audio™ light-load operation with switching frequency over 25 kHz
  • 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™ VQFN package
  • Create a Custom Design Using the TPS566235 With the WEBENCH® Power Designer
  • Input voltage range: 4.5 V to 18 V
  • Output voltage range: 0.6 V to 7 V
  • ±1% reference voltage at room temperature
  • Supports 6-A continuous output current
  • D-CAP3™ architecture control for fast transient response
  • Integrated 25-mΩ and 12-mΩ RDS(on) power FETs
  • 108-µA low quiescent current
  • Selectable Eco-Mode™, Out-Of-Audio™ and FCCM by MODE pin
  • Out-Of-Audio™ light-load operation with switching frequency over 25 kHz
  • 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™ VQFN package
  • Create a Custom Design Using the TPS566235 With the WEBENCH® Power Designer

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-CAP3™ 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-Mode™, Out-Of-Audio™ (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 HotRod™ package and the junction temperature is specified from –40°C to 125°C.

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-CAP3™ 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-Mode™, Out-Of-Audio™ (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 HotRod™ package and the junction temperature is specified from –40°C to 125°C.

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Technical documentation

Design & development

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Evaluation board

TPS566235EVM — 6-A buck converter evaluation module

TPS566235 is a cost effective, high performance, synchronous buck converter with integrated FETs. The TPS566235 evaluation module (EVM) is a fully assembled and tested circuit for evaluating TPS566235 device. It operates with supply input voltage ranging from 4.5 V to 18 V. TPS566235 uses DCAP3 (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS566235 PSPICE Transient Model

SLVMD18.ZIP (114 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN-HR (RJN) 13 View options

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