TPS62870

Name: TPS62870
Brand: TI
SKU: TPS62870
Price: 1.28 USD

現行

6-V、6-A 可並聯同步降壓轉換器；頻率同步選項、快速暫態響應

立即訂購

產品規格表

document-pdfAcrobat TPS6287x 2.7V to 6V Input, 6A, 9A, 12A, 15A, Stackable, Synchronous Step-Down Converters With Fast Transient Response datasheet (Rev. B) (英文) PDF | HTML

TPS62870

現行

產品規格表

立即訂購

產品詳細資料

Rating

Automotive

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

6

Vin (min) (V)

2.7

Vin (max) (V)

6

Switching frequency (min) (kHz)

1500

Switching frequency (max) (kHz)

3000

Features

Adaptive/Dynamic Voltage Scaling, Differential Remote Sense, Enable, Fixed Output, Forced PWM, Frequency synchronization, I2C, I2C bus interface, I2C control, I2C interface, I2C/PMBus, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package

Control mode

Constant on-time (COT), DCS-Control

Vout (min) (V)

0.4

Vout (max) (V)

3.35

Duty cycle (max) (%)

70

Rating

Automotive

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

6

Vin (min) (V)

2.7

Vin (max) (V)

6

Switching frequency (min) (kHz)

1500

Switching frequency (max) (kHz)

3000

Features

Adaptive/Dynamic Voltage Scaling, Differential Remote Sense, Enable, Fixed Output, Forced PWM, Frequency synchronization, I2C, I2C bus interface, I2C control, I2C interface, I2C/PMBus, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package

Control mode

Constant on-time (COT), DCS-Control

Vout (min) (V)

0.4

Vout (max) (V)

3.35

Duty cycle (max) (%)

70

VQFN-FCRLF (RXS)

16

9.0525 mm² 2.55 x 3.55

Functional Safety-Capable
- Documentation available to aid functional safety system design
2.7V to 6V input voltage range
6A, 9A, 12A, and 15A family of pin-to-pin compatible device
Four output voltage ranges:
- 0.4V to 0.71875V in 1.25mV steps
- 0.4V to 1.0375V in 2.5mV steps
- 0.4V to 1.675V in 5mV steps
- 0.8V to 3.35V in 10mV steps
Output voltage accuracy ±1%
7mΩ and 4.5mΩ internal power MOSFETs
Adjustable external compensation
Resistor-selectable start-up output voltage
Resistor-selectable switching frequency
Power-save or forced-PWM operation
I2C-compatible interface up to 1MHz
Differential remote sensing
Optional stacked operation for increased output current capability
Thermal warning and thermal shutdown
Precise enable input
Active output discharge
Optional spread-spectrum clocking
Power-good output with a window comparator
Available in 2.55mm × 3.55mm × 1mm VQFN package with wettable flanks
–40°C to 125°C junction temperature, TJ

Functional Safety-Capable
- Documentation available to aid functional safety system design
2.7V to 6V input voltage range
6A, 9A, 12A, and 15A family of pin-to-pin compatible device
Four output voltage ranges:
- 0.4V to 0.71875V in 1.25mV steps
- 0.4V to 1.0375V in 2.5mV steps
- 0.4V to 1.675V in 5mV steps
- 0.8V to 3.35V in 10mV steps
Output voltage accuracy ±1%
7mΩ and 4.5mΩ internal power MOSFETs
Adjustable external compensation
Resistor-selectable start-up output voltage
Resistor-selectable switching frequency
Power-save or forced-PWM operation
I2C-compatible interface up to 1MHz
Differential remote sensing
Optional stacked operation for increased output current capability
Thermal warning and thermal shutdown
Precise enable input
Active output discharge
Optional spread-spectrum clocking
Power-good output with a window comparator
Available in 2.55mm × 3.55mm × 1mm VQFN package with wettable flanks
–40°C to 125°C junction temperature, TJ

The TPS6287x is a family of pin-to-pin 6A, 9A, 12A, and 15A synchronous step-down DC/DC converters with differential remote sensing. For each current rating, there are full-featured device variants with I2C interface and limited-featured device variants without I2C interface. All devices offer high efficiency and ease of use. Low-resistance power switches allow up to 15A continuous output current at high ambient temperatures.

The devices can operate in stacked mode to deliver higher output currents or to spread the power dissipation across multiple devices.

The TPS6287x family implements an enhanced DCS-control scheme that supports fast transients with fixed-frequency operation. Devices can operate in power save mode for maximum efficiency, or forced-PWM mode for the best transient performance and lowest output voltage ripple.

An optional remote sensing feature maximizes voltage regulation at the point-of-load, and the device achieves better than ±1% DC voltage accuracy under all operating conditions.

The switching frequency is resistor-selectable through the FSEL pin. The switching frequency can be set to 1.5MHz, 2.25MHz, 2.5MHz, or 3.0MHz, or synchronized to an external clock in the same frequency range.

The I2C-compatible interface offers several control, monitoring, and warning features, such as voltage monitoring and temperature-related warnings. The output voltage can be quickly adjusted to adapt the power consumption of the load to the performance needs of the application through the I2C-compatible interface. The default start-up voltage is resistor-selectable through the VSEL pin.

The TPS6287x is a family of pin-to-pin 6A, 9A, 12A, and 15A synchronous step-down DC/DC converters with differential remote sensing. For each current rating, there are full-featured device variants with I2C interface and limited-featured device variants without I2C interface. All devices offer high efficiency and ease of use. Low-resistance power switches allow up to 15A continuous output current at high ambient temperatures.

The devices can operate in stacked mode to deliver higher output currents or to spread the power dissipation across multiple devices.

The TPS6287x family implements an enhanced DCS-control scheme that supports fast transients with fixed-frequency operation. Devices can operate in power save mode for maximum efficiency, or forced-PWM mode for the best transient performance and lowest output voltage ripple.

An optional remote sensing feature maximizes voltage regulation at the point-of-load, and the device achieves better than ±1% DC voltage accuracy under all operating conditions.

The switching frequency is resistor-selectable through the FSEL pin. The switching frequency can be set to 1.5MHz, 2.25MHz, 2.5MHz, or 3.0MHz, or synchronized to an external clock in the same frequency range.

The I2C-compatible interface offers several control, monitoring, and warning features, such as voltage monitoring and temperature-related warnings. The output voltage can be quickly adjusted to adapt the power consumption of the load to the performance needs of the application through the I2C-compatible interface. The default start-up voltage is resistor-selectable through the VSEL pin.

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	類型	標題		日期
*	Data sheet	TPS6287x 2.7V to 6V Input, 6A, 9A, 12A, 15A, Stackable, Synchronous Step-Down Converters With Fast Transient Response datasheet (Rev. B)	PDF \| HTML	2024年 5月 31日
	Functional safety information	TPS6287x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA	PDF \| HTML	2024年 1月 23日
	Application note	QFN and SON PCB Attachment (Rev. C)	PDF \| HTML	2023年 12月 6日
	Application note	Benefiting from Step-Down Converters with an I2C Communication Interface (Rev. B)	PDF \| HTML	2023年 11月 29日
	Application note	AM68x Processor Power Solutions Using LP87334E PMIC for Industrial Applications	PDF \| HTML	2023年 3月 14日
	Application note	Using the Filters with the DC/DC Step-Down Converter	PDF \| HTML	2023年 2月 2日
	Application note	Operating TPS6287X-Q1 Devices in a Stacked Configuration	PDF \| HTML	2023年 1月 30日
	Application note	Adjusting the Output Voltage of a Fixed Output Voltage DC-DC Converter	PDF \| HTML	2022年 12月 22日
	EVM User's guide	TPS62873 Dual Buck Converter Evaluation Module (Rev. A)	PDF \| HTML	2022年 11月 4日
	Application note	Understanding SOA Curves to Operate at High Output Currents and Temperature	PDF \| HTML	2022年 5月 5日
	Application note	How to Measure Impedance of a Power Distribution Network of a DC-DC Converter	PDF \| HTML	2022年 1月 20日
	Application note	Loop Gain Reconstruction of a Step-Down Converter from Output Impedance	PDF \| HTML	2022年 1月 20日
	White paper	Enabling Higher Data Rates for Optical Modules With Small and Efficient Power		2021年 3月 22日
	White paper	Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies		2019年 10月 14日
	Analog Design Journal	Methods of output-voltage adjustment for DC/DC converters		2019年 6月 14日
	Analog Design Journal	Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold		2017年 10月 24日
	Analog Design Journal	Understanding frequency variation in the DCS-Control(TM) topology		2015年 10月 30日
	Application note	Basic Calculation of a Buck Converter's Power Stage (Rev. B)		2015年 8月 17日
	Analog Design Journal	Five steps to a great PCB layout for a step-down converter		2015年 1月 29日
	Analog Design Journal	High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions		2013年 7月 25日
	Application note	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)		2012年 1月 13日
	Application note	Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs		2011年 9月 19日

設計與開發

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開發板

TPS62873EVM-143 — TPS62873-Q1 評估模組 2.7-V 至 6-V 輸入降壓轉換器

TPS62873EVM-143 評估模組 (EVM) 的設計目的在於評估和測試 TPS62873-Q1 降壓轉換器的運作和功能性。亦可用於評估 TPS62870-Q1、TPS62871-Q1 及 TPS62872-Q1 裝置。EVM 可將 2.7-V 至 6.0-V 輸入電壓轉換為調節的 0.75-V 輸出電壓。對於 TPS62873EVM-143，輸出電流最高可達 15 A。

使用指南: PDF | HTML

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開發板

TPS62873EVM-144 — TPS62873-Q1 30-A 降壓轉換器評估模組

TPS62873EVM-144 評估模組 (EVM) 是一款針對小型解決方案尺寸和高效率進行最佳化的高頻同步降壓轉換器。EVM 的設計旨在幫助使用者輕鬆評估及測試兩個 TPS62873 降壓轉換器的疊堆配置運作及功能性。其亦可用於評估此配置中的 TPS62870-Q1、TPS62871-Q1 及 TPS62872-Q1 裝置。EVM 可將 2.7-V 至 6.0-V 輸入電壓轉換為調節的 0.75-V 輸出電壓。此 EVM 的輸出電流最高可達 30-A。

使用指南: PDF | HTML