TPS54328

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

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具有 Eco-mode™ 的 4.5V 至 18V 输入，3A 同步降压转换器

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数据表

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

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采用 SOT583 封装且具有 1% 精度、PG/SS 和 PFM/强制 PWM 的 4.2V 至 18V、3A 同步降压转换器 Upgrade with improved performance, pricing and smaller package.

TPS54328

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数据表

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产品详情

Iout (max) (A)

3

Vin (min) (V)

4.5

Vin (max) (V)

18

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

Iout (max) (A)

3

Vin (min) (V)

4.5

Vin (max) (V)

18

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

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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	类型	标题		下载最新的英语版本	日期
*	数据表	TPS54328 4.5-V to 18-V Input, 3-A Synchronous Step-Down Converter With Eco-Mode™ 数据表 (Rev. D)	PDF \| HTML		2016年 8月 17日
	用户指南	TPS54328 Step-Down Converter Evaluation Module User's Guide (Rev. A)	PDF \| HTML		2021年 10月 11日
	选择指南	电源管理指南 2018 (Rev. K)			2018年 7月 31日
	选择指南	电源管理指南 2018 (Rev. R)			2018年 6月 25日
	应用手册	Optimize Output Filter on D-CAP2 for Stability Improvement			2017年 6月 13日
	应用手册	TPS54X28 应用指导			2015年 9月 2日
	应用手册	基于带有纹波注入谷底检测定导通时间频域分析的D-CAP2™频率响应模型		英语版	2015年 9月 2日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

TPS54328EVM-686 — 用于 TPS54328 3A 同步降压转换器（具有 Eco-Mode）的评估模块

TPS54328EVM-686 是一款组装完备且经过测试的电路，用于评估 TPS54328 同步降压转换器。TPS54328EVM-686 在 4.5V 至 18V 输入电压范围内运行，在高达 3A 的负载下提供 1.05V 的输出电压。TPS54328 的主控制环路采用 D-CAP2™ 控制模式，无需在相位补偿中使用外部组件即可实现超快的瞬态响应。

用户指南: PDF | HTML