TPS62912

Name: TPS62912
Brand: TI
SKU: TPS62912
Price: 0.732 USD

現行

具有整合式鐵氧體磁珠濾波器補償的 17-VIN、2-A 低雜訊和低漣波降壓轉換器

立即訂購

產品規格表

document-pdfAcrobat TPS6291x 3-V to 17-V, 2-A/3-A Low Noise and Low Ripple Buck Converter with Integrated Ferrite Bead Filter Compensation datasheet (Rev. B) (英文) PDF | HTML

TPS62912

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

2

Vin (min) (V)

3

Vin (max) (V)

17

Switching frequency (min) (kHz)

900

Switching frequency (max) (kHz)

2420

Features

Enable, Frequency synchronization, Low Noise, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Spread Spectrum, Synchronous Rectification, UVLO Fixed

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

5.5

Iq (typ) (µA)

5000

Duty cycle (max) (%)

100

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

2

Vin (min) (V)

3

Vin (max) (V)

17

Switching frequency (min) (kHz)

900

Switching frequency (max) (kHz)

2420

Features

Enable, Frequency synchronization, Low Noise, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Spread Spectrum, Synchronous Rectification, UVLO Fixed

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

5.5

Iq (typ) (µA)

5000

Duty cycle (max) (%)

100

VQFN-HR (RPU)

10

4 mm² 2 x 2

Low output 1/f noise < 20 µV_RMS(100 Hz to 100 kHz)
Low output voltage ripple < 10 µV_RMS after ferrite bead
High PSRR of > 65 dB (up to 100 kHz)
2.2-MHz or 1-MHz fixed frequency peak current mode control
Synchronizable with external clock (optional)
Integrated loop compensation supports ferrite bead for second stage L-C filter with 30-dB attenuation (optional)
Spread spectrum modulation (optional)
3.0-V to 17-V input voltage range
0.8-V to 5.5-V output voltage range
57-mΩ/20-mΩ R_DSon
Output voltage accuracy of ±1%
Precise enable input allows
- User-defined undervoltage lockout
- Exact sequencing
Adjustable soft start
Power-good output
Output discharge (optional)
–40°C to 150°C junction temperature range
2.0-mm × 2.0-mm QFN with 0.5-mm pitch
Create a custom design using the TPS6291x with the WEBENCH Power Designer

Low output 1/f noise < 20 µV_RMS(100 Hz to 100 kHz)
Low output voltage ripple < 10 µV_RMS after ferrite bead
High PSRR of > 65 dB (up to 100 kHz)
2.2-MHz or 1-MHz fixed frequency peak current mode control
Synchronizable with external clock (optional)
Integrated loop compensation supports ferrite bead for second stage L-C filter with 30-dB attenuation (optional)
Spread spectrum modulation (optional)
3.0-V to 17-V input voltage range
0.8-V to 5.5-V output voltage range
57-mΩ/20-mΩ R_DSon
Output voltage accuracy of ±1%
Precise enable input allows
- User-defined undervoltage lockout
- Exact sequencing
Adjustable soft start
Power-good output
Output discharge (optional)
–40°C to 150°C junction temperature range
2.0-mm × 2.0-mm QFN with 0.5-mm pitch
Create a custom design using the TPS6291x with the WEBENCH Power Designer

The TPS6291x devices are a family of high-efficiency, low noise and low ripple current mode synchronous buck converters. The devices are ideal for noise sensitive applications that would normally use an LDO for post regulation such as high-speed ADCs, clock and jitter cleaner, serializer, de-serializer, and radar applications.

The devices operate at a fixed switching frequency of 2.2 MHz or 1 MHz, and can be synchronized to an external clock.

To further reduce the output voltage ripple, the device integrates loop compensation to operate with an optional second-stage ferrite bead L-C filter. This allows an output voltage ripple below 10 µV_RMS.

Low-frequency noise levels, similar to a low-noise LDO, are achieved by filtering the internal voltage reference with a capacitor connected to the NR/SS pin.

The optional spread spectrum modulation scheme spreads the DC/DC switching frequency over a wider span, which lowers the mixing spurs.

The TPS6291x devices are a family of high-efficiency, low noise and low ripple current mode synchronous buck converters. The devices are ideal for noise sensitive applications that would normally use an LDO for post regulation such as high-speed ADCs, clock and jitter cleaner, serializer, de-serializer, and radar applications.

The devices operate at a fixed switching frequency of 2.2 MHz or 1 MHz, and can be synchronized to an external clock.

To further reduce the output voltage ripple, the device integrates loop compensation to operate with an optional second-stage ferrite bead L-C filter. This allows an output voltage ripple below 10 µV_RMS.

Low-frequency noise levels, similar to a low-noise LDO, are achieved by filtering the internal voltage reference with a capacitor connected to the NR/SS pin.

The optional spread spectrum modulation scheme spreads the DC/DC switching frequency over a wider span, which lowers the mixing spurs.

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現行

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	類型	標題		日期
*	Data sheet	TPS6291x 3-V to 17-V, 2-A/3-A Low Noise and Low Ripple Buck Converter with Integrated Ferrite Bead Filter Compensation datasheet (Rev. B)	PDF \| HTML	2021年 3月 23日
	White paper	以低雜訊電源裝置簡化電源架構 (Rev. A)	PDF \| HTML	2024年 11月 5日
	Technical article	如何以低雜訊和低漣波設計技術強化電源與訊號完整性	PDF \| HTML	2024年 10月 4日
	Application brief	Solving power design challenges in oscilloscope applications	PDF \| HTML	2023年 10月 31日
	Application note	Powering Noise Sensitive LIDAR ADC Designs With TPS62913 Buck Converter	PDF \| HTML	2022年 2月 28日
	Design guide	Multichannel RF Transceiver Low-Noise Clocking Ref. Des. for Radar and EW Applic	PDF \| HTML	2021年 12月 16日
	Application note	Powering the AFE7920 with the TPS62913 Low-Ripple and Low-Noise Buck Converter (Rev. A)	PDF \| HTML	2021年 12月 13日
	Application brief	Multi-Function Pins for Easy Designing	PDF \| HTML	2021年 7月 7日
	EVM User's guide	TPS62913 Inverting Buck Boost EVM User Guide	PDF \| HTML	2021年 7月 2日
	Analog Design Journal	Clutter‐free power supplies for RF converters in radar applications (Part 1)		2021年 3月 18日
	EVM User's guide	TPS6291xEVM-077 User's Guide (Rev. A)	PDF \| HTML	2021年 1月 13日
	Technical article	Powering medical imaging applications with DC/DC buck converters	PDF \| HTML	2020年 11月 24日
	Technical article	Minimize noise and ripple with a low-noise buck converter	PDF \| HTML	2020年 10月 21日
	Application note	Powering Sensitive Noise ADC Designs with the TPS62913 Low-Noise Buck Converter	PDF \| HTML	2020年 9月 30日
	Certificate	TPS62912EVM-077 EU Declaration of Conformity (DoC)		2020年 7月 20日
	Technical article	Understanding and managing buck regulator output ripple	PDF \| HTML	2020年 6月 18日
	Application note	Output Ripple Voltage for Buck Switching Regulator (Rev. A)		2014年 10月 13日

設計與開發

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開發板

TPS62912EVM-077 — 具有整合式鐵氧體磁珠濾波器補償的 17-V、2-A 低雜訊/低漣波降壓轉換器 EVM

The TPS62912EVM-077 (BSR077-002) evaluation module (EVM) facilitates the evaluation of the TPS62912 2-A low noise and low ripple buck converter with integrated ferrite bead filter compensation in a small 2-mm by 2-mm QFN package. The EVM outputs a 3.3-V output voltage from input voltages up to 17 (...)

使用指南: PDF | HTML