TPS566231

Name: TPS566231
Brand: TI
SKU: TPS566231
Price: 0.28 USD

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3-V to 18-V input, 6-A synchronous step-down voltage regulator with pulse skip mode

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Data sheet

document-pdfAcrobat TPS56623x 3-V to 18-V Input, 6-A Synchronous Step-Down Voltage Regulator datasheet (Rev. B) PDF | HTML

TPS566231

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Data sheet

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Product details

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

6

Vin (min) (V)

3

Vin (max) (V)

18

Switching frequency (min) (kHz)

600

Switching frequency (max) (kHz)

600

Features

Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Synchronous Rectification

Control mode

D-CAP3

Vout (min) (V)

0.6

Vout (max) (V)

7

Iq (typ) (µA)

50

Duty cycle (max) (%)

98

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

6

Vin (min) (V)

3

Vin (max) (V)

18

Switching frequency (min) (kHz)

600

Switching frequency (max) (kHz)

600

Features

Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Synchronous Rectification

Control mode

D-CAP3

Vout (min) (V)

0.6

Vout (max) (V)

7

Iq (typ) (µA)

50

Duty cycle (max) (%)

98

VQFN-HR (RQF)

9

3 mm² 2 x 1.5

Configured for rugged applications
- 3-V to 18-V input voltage range
- 0.6-V to 7-V output voltage range
- 6-A continuous output current
- 0.6-V ±1% reference voltage (25°C)
- 98% maximum duty cycle
- 600-kHz switching frequency
- Non-latched for OC, OV, UV, and OT protections
- Built-in output discharge function
Numerous pin-compatible options
- TPS566231 and TPS566238 with SS pin for adjustable soft-start time
- TPS566231P and TPS566238P with PG pin for power-good indicator
- TPS566231 and TPS566231P for auto-skip mode
- TPS566238 and TPS566238P for continuous current mode
Mandarin data sheet available
Small design size and ease of use
- Integrated power MOSFET with RDS(on) 20.8 mΩ and 10.6 mΩ
- D-CAP3™ control mode for fast transient response and internal compensation
- 1.5-mm × 2.0-mm HotRod™ QFN package
- Create a custom design with the WEBENCH Power Designer

Configured for rugged applications
- 3-V to 18-V input voltage range
- 0.6-V to 7-V output voltage range
- 6-A continuous output current
- 0.6-V ±1% reference voltage (25°C)
- 98% maximum duty cycle
- 600-kHz switching frequency
- Non-latched for OC, OV, UV, and OT protections
- Built-in output discharge function
Numerous pin-compatible options
- TPS566231 and TPS566238 with SS pin for adjustable soft-start time
- TPS566231P and TPS566238P with PG pin for power-good indicator
- TPS566231 and TPS566231P for auto-skip mode
- TPS566238 and TPS566238P for continuous current mode
Mandarin data sheet available
Small design size and ease of use
- Integrated power MOSFET with RDS(on) 20.8 mΩ and 10.6 mΩ
- D-CAP3™ control mode for fast transient response and internal compensation
- 1.5-mm × 2.0-mm HotRod™ QFN package
- Create a custom design with the WEBENCH Power Designer

The TPS56623x are simple, easy-to-use, high-efficiency, 6-A synchronous buck converters in a QFN 9-pin 1.5-mm × 2.0-mm package.

The devices operate with wider supply input voltage ranging from 3 V to 18 V. The D-CAP3 control mode is adopted to provide a fast transient response, good line and load regulation, no requirement for external compensation, and support to low-ESR output capacitors.

The TPS566231 and TPS566231P operate in Eco-mode for high efficiency during light load operation. The devices are designed as the ULQ™ DC/DC converter, achieving 50-µA quiescent current to enable long battery life in low-power applications. The TPS566238 and TPS566238P operate in continuous current mode, which maintains lower output ripple during all load conditions.

The TPS566231 and TPS566238 soft-start time can be adjusted through the SS pin. The TPS566231P and TPS566238P indicate power good through the PG pin.

The TPS56623x can support up to 98% duty cycle operation, and integrate complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup. The devices are each available in a 9-pin 1.5-mm × 2.0-mm HotRod package. The junction temperature is specified from –40°C to 125°C.

The TPS56623x are simple, easy-to-use, high-efficiency, 6-A synchronous buck converters in a QFN 9-pin 1.5-mm × 2.0-mm package.

The devices operate with wider supply input voltage ranging from 3 V to 18 V. The D-CAP3 control mode is adopted to provide a fast transient response, good line and load regulation, no requirement for external compensation, and support to low-ESR output capacitors.

The TPS566231 and TPS566231P operate in Eco-mode for high efficiency during light load operation. The devices are designed as the ULQ™ DC/DC converter, achieving 50-µA quiescent current to enable long battery life in low-power applications. The TPS566238 and TPS566238P operate in continuous current mode, which maintains lower output ripple during all load conditions.

The TPS566231 and TPS566238 soft-start time can be adjusted through the SS pin. The TPS566231P and TPS566238P indicate power good through the PG pin.

The TPS56623x can support up to 98% duty cycle operation, and integrate complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup. The devices are each available in a 9-pin 1.5-mm × 2.0-mm HotRod package. The junction temperature is specified from –40°C to 125°C.

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TPS566238

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3-V to 18-V input, 6-A synchronous step-down regulator with forced continuous conduction mode Offers FCCM capabilities.

Technical documentation

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	Type	Title		Date
*	Data sheet	TPS56623x 3-V to 18-V Input, 6-A Synchronous Step-Down Voltage Regulator datasheet (Rev. B)	PDF \| HTML	11 Dec 2023
	Application note	Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network	PDF \| HTML	27 Feb 2024
	Application note	6-A DC/DC Buck Converter Selection Guide of Mid-range VIN	PDF \| HTML	18 Apr 2023
	Application note	Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 2	PDF \| HTML	02 Aug 2021
	Technical article	Which pinout is best? How individual, multifunctional and trimmed pinouts help add	PDF \| HTML	28 Jun 2021
	Application note	Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 1	PDF \| HTML	09 Jun 2021
	EVM User's guide	TPS566231P and TPS566238P Step-Down Converter Evaluation Module User's Guide (Rev. A)	PDF \| HTML	28 Apr 2021
	EVM User's guide	TPS566231 Step-Down Converter Evaluation Module User's Guide (Rev. B)	PDF \| HTML	27 Apr 2021
	Certificate	TPS566231EVM EU Declaration of Conformity (DoC)		26 May 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS566231EVM — 3-V to 18-V VIN, 6-A synchronous step-down converter evaluation module

The TPS566231EVM evaluation module (EVM) is used to evaluate the TPS566231 device. The TPS566231 is a cost effective, high-voltage input, synchronous buck converter with integrated FETs. One of the key features of the TPS566231 is its ULQ (ultra low quiescent) to enable low-bias current. This (...)

User guide: PDF | HTML

Not available on TI.com

Evaluation board

TPS566231PEVM — TPS566231P 6-A synchronous step-down converter with PGOOD evaluation module

The TPS566231PEVM is used to evaluate the TPS566231P device, a high-voltage input, synchronous buck converter with integrated FETs. One of the key features of the TPS566231P is its ULQ (ultra low quiescent) to enable low-bias current. This feature is extremely beneficial for long (...)

User guide: PDF | HTML