TPS54328

Name: TPS54328
Brand: TI
SKU: TPS54328
Price: 0.522 USD

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Synchroner Abwärtswandler, 4,5 bis 18 V Eingangsspannung, 3 A, mit Eco-Mode™

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Datenblatt

document-pdfAcrobat TPS54328 4.5-V to 18-V Input, 3-A Synchronous Step-Down Converter With Eco-Mode™ datasheet (Rev. D) (Englisch) PDF | HTML

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TPS54328

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Datenblatt

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Produktdetails

Iout (max) (A)

3

Vin (min) (V)

4.5

Vin (max) (V)

18

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

700

Switching frequency (max) (kHz)

700

Features

Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification

Control mode

D-CAP2

Vout (min) (V)

0.76

Vout (max) (V)

7

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.0008

Iout (max) (A)

3

Vin (min) (V)

4.5

Vin (max) (V)

18

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

700

Switching frequency (max) (kHz)

700

Features

Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification

Control mode

D-CAP2

Vout (min) (V)

0.76

Vout (max) (V)

7

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.0008

HSOIC (DDA)

8

29.4 mm² 4.9 x 6

VSON (DRC)

10

9 mm² 3 x 3

D-CAP2™ Mode Enables Fast Transient Response
Low Output Ripple and Allows Ceramic Output Capacitor
Wide Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76 V to 7 V
Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications
- 100 mΩ (High-Side) and 70 mΩ (Low-Side)
High Efficiency, Less Than 10 µA at Shutdown
High Initial Bandgap Reference Accuracy
Adjustable Soft Start
Pre-Biased Soft Start
700-kHz Switching Frequency (f_SW)
Cycle-By-Cycle Overcurrent Limit
Auto-Skip Eco-Mode™ for High Efficiency at Light Load

D-CAP2™ Mode Enables Fast Transient Response
Low Output Ripple and Allows Ceramic Output Capacitor
Wide Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76 V to 7 V
Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications
- 100 mΩ (High-Side) and 70 mΩ (Low-Side)
High Efficiency, Less Than 10 µA at Shutdown
High Initial Bandgap Reference Accuracy
Adjustable Soft Start
Pre-Biased Soft Start
700-kHz Switching Frequency (f_SW)
Cycle-By-Cycle Overcurrent Limit
Auto-Skip Eco-Mode™ for High Efficiency at Light Load

The TPS54328 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54328 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 main control loop for the TPS54328 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components.

The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode operation at light loads. Eco-mode allows the TPS54328 to maintain high efficiency during lighter load conditions. The TPS54328 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V input (V_IN).

The output voltage can be programmed from 0.76 V to 7 V. The device also features an adjustable soft start time. The TPS54328 is available in 8-pin DDA and 10-pin DRC packages, and is designed to operate over the ambient temperature range of –40°C to 85°C.

The TPS54328 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54328 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 main control loop for the TPS54328 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components.

The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode operation at light loads. Eco-mode allows the TPS54328 to maintain high efficiency during lighter load conditions. The TPS54328 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V input (V_IN).

The output voltage can be programmed from 0.76 V to 7 V. The device also features an adjustable soft start time. The TPS54328 is available in 8-pin DDA and 10-pin DRC packages, and is designed to operate over the ambient temperature range of –40°C to 85°C.

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Alle anzeigen 5

	Typ	Titel		Datum
*	Data sheet	TPS54328 4.5-V to 18-V Input, 3-A Synchronous Step-Down Converter With Eco-Mode™ datasheet (Rev. D)	PDF \| HTML	17 Aug 2016
	User guide	TPS54328 Step-Down Converter Evaluation Module User's Guide (Rev. A)	PDF \| HTML	11 Okt 2021
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	Application note	Optimize Output Filter on D-CAP2 for Stability Improvement		13 Jun 2017
	Application note	D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On-		02 Jan 2013

Design und Entwicklung

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Evaluierungsplatine

TPS54328EVM-686 — Evaluierungsmodul für TPS54328 3-A-Synchron-Abwärtswandler mit Eco-Mode

The TPS54328EVM-686 is a fully assembled and tested circuit for evaluating the TPS54328 synchronous step-down converter. The TPS54328EVM-686 operates from a 4.5-V to 18-V input and provides a 1.05-V output up to 3-A load. The main control loop of TPS54328 uses D-CAP2™ control mode, which (...)

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