TPS54292

Name: TPS54292
Brand: TI
SKU: TPS54292
Price: 2.112 USD

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4.5V 至 18V 输入、1.2MHz、1.5/2.5A 双通道同步降压转换器

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数据表

document-pdfAcrobat TPS5429x 1.5-A and 2.5-A Dual, Fully-Synchronous Buck Converter With Integrated MOSFET 数据表 (Rev. A) (英语) PDF | HTML

TPS54292

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数据表

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产品详情

Rating

Catalog

Operating temperature range (°C)

-40 to 145

Topology

Buck

Type

Converter

Iout (max) (A)

2.5

Vin (min) (V)

4.5

Vin (max) (V)

18

Switching frequency (min) (kHz)

1200

Switching frequency (max) (kHz)

1200

Features

Enable, Phase Interleaving, Synchronous Rectification

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

14

Iq (typ) (µA)

1800

Duty cycle (max) (%)

78

Rating

Catalog

Operating temperature range (°C)

-40 to 145

Topology

Buck

Type

Converter

Iout (max) (A)

2.5

Vin (min) (V)

4.5

Vin (max) (V)

18

Switching frequency (min) (kHz)

1200

Switching frequency (max) (kHz)

1200

Features

Enable, Phase Interleaving, Synchronous Rectification

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

14

Iq (typ) (µA)

1800

Duty cycle (max) (%)

78

HTSSOP (PWP)

16

32 mm² 5 x 6.4

4.5-V to 18-V Input Range
Output Voltage Range 0.8 V to D_MAX × V_IN
Fully Integrated Dual Buck: 1.5 A and 2.5 A
Three Fixed Switching Frequency Versions:
- TPS54290: 300 kHz
- TPS54291: 600 kHz
- TPS54292: 1.2 MHz
Integrated UVLO
0.8 V_REF With 1% Accuracy (0°C to 85°C)
Internal Soft Start:
- TPS54290: 5.2 ms
- TPS54291: 2.6 ms
- TPS54292: 1.3 ms
Dual PWM Outputs 180° Out-of-Phase
Dedicated Enable for Each Channel
Current Mode Control for Simplified Compensation
External Compensation
Pulse-by-Pulse Overcurrent Protection, 2.2-A and 3.8-A Overcurrent Limit
Integrated Bootstrap Switch
Thermal Shutdown Protection at 145°C
16-Pin PowerPAD™ HTSSOP Package
APPLICATIONS
- Set-Top Boxes
- Digital TVs
- Power for DSP
- Consumer Electronics

All other trademarks are the property of their respective owners

4.5-V to 18-V Input Range
Output Voltage Range 0.8 V to D_MAX × V_IN
Fully Integrated Dual Buck: 1.5 A and 2.5 A
Three Fixed Switching Frequency Versions:
- TPS54290: 300 kHz
- TPS54291: 600 kHz
- TPS54292: 1.2 MHz
Integrated UVLO
0.8 V_REF With 1% Accuracy (0°C to 85°C)
Internal Soft Start:
- TPS54290: 5.2 ms
- TPS54291: 2.6 ms
- TPS54292: 1.3 ms
Dual PWM Outputs 180° Out-of-Phase
Dedicated Enable for Each Channel
Current Mode Control for Simplified Compensation
External Compensation
Pulse-by-Pulse Overcurrent Protection, 2.2-A and 3.8-A Overcurrent Limit
Integrated Bootstrap Switch
Thermal Shutdown Protection at 145°C
16-Pin PowerPAD™ HTSSOP Package
APPLICATIONS
- Set-Top Boxes
- Digital TVs
- Power for DSP
- Consumer Electronics

All other trademarks are the property of their respective owners

The TPS54290, TPS54291, and TPS54292 devices are dual-output, fully synchronous buck converters capable of supporting applications with a minimal number of external components. It operates from a 4.5-V to 18-V input supply voltage, and supports output voltages as low as 0.8 V and as high as 90% of the input voltage.

Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. Channel 1 can provide up to 1.5 A of continuous current. Meanwhile, Channel 2 supports up to 2.5 A.

Current mode control simplifies the compensation. The external compensation adds flexibility for the user to choose different type of output capacitors.

180° out-of-phase operation reduces the ripple current through the input capacitor, providing the benefit of reducing input capacitance, alleviating EMI and increasing capacitor life.

The TPS54290, TPS54291, and TPS54292 devices are dual-output, fully synchronous buck converters capable of supporting applications with a minimal number of external components. It operates from a 4.5-V to 18-V input supply voltage, and supports output voltages as low as 0.8 V and as high as 90% of the input voltage.

Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. Channel 1 can provide up to 1.5 A of continuous current. Meanwhile, Channel 2 supports up to 2.5 A.

Current mode control simplifies the compensation. The external compensation adds flexibility for the user to choose different type of output capacitors.

180° out-of-phase operation reduces the ripple current through the input capacitor, providing the benefit of reducing input capacitance, alleviating EMI and increasing capacitor life.

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	类型	标题		日期
*	数据表	TPS5429x 1.5-A and 2.5-A Dual, Fully-Synchronous Buck Converter With Integrated MOSFET 数据表 (Rev. A)	PDF \| HTML	2016年 12月 29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	Understanding Thermal Dissipation and Design of a Heatsink		2011年 5月 4日

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TPS54291EVM-431 — 12V 输入、3.3V 1.5A 和 1.2V 以及 2.5A 双路同步降压转换器评估模块

TPS54291EVM-431 评估模块 (EVM) 是双路同步降压转换器，可从 12V 总线提供 3.3V 和 1.2V 固定输出，电流分别高达 1.5A 和 2.5A。该 EVM 设计成从单电源启动，因此无需额外偏置电压即可启动。该模块使用具有集成 MOSET 的 TPS54291 600kHz 双路同步降压转换器。TPS54291EVM-431 设计成使用 12V (+10% /–20%) 稳压总线来产生两个稳压电压轨（在 1.5A 时为 3.3V 并且在 2.5A 时为 1.2V）。TPS54291EVM-431 旨在演示 TPS54291 在典型的 12V (...)

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