TPS62912

Name: TPS62912
Brand: TI
SKU: TPS62912
Price: 0.842 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

Topology

Buck

Iout (max) (A)

2

Vin (max) (V)

17

Vin (min) (V)

3

Vout (max) (V)

5.5

Vout (min) (V)

0.8

Features

Enable, Frequency synchronization, Low Noise, Output discharge, Overcurrent protection, Power good, Soft-start adjustable, Spread-Spectrum Clock (SSC) Generation, Synchronous rectification, UVLO Fixed

Control mode

current mode

Switching frequency (min) (kHz)

900

Switching frequency (max) (kHz)

2420

Operating temperature range (°C)

-40 to 150

Iq (typ) (µA)

5000

Duty cycle (max) (%)

100

Type

Converter

Rating

Catalog

Topology

Buck

Iout (max) (A)

2

Vin (max) (V)

17

Vin (min) (V)

3

Vout (max) (V)

5.5

Vout (min) (V)

0.8

Features

Enable, Frequency synchronization, Low Noise, Output discharge, Overcurrent protection, Power good, Soft-start adjustable, Spread-Spectrum Clock (SSC) Generation, Synchronous rectification, UVLO Fixed

Control mode

current mode

Switching frequency (min) (kHz)

900

Switching frequency (max) (kHz)

2420

Operating temperature range (°C)

-40 to 150

Iq (typ) (µA)

5000

Duty cycle (max) (%)

100

Type

Converter

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

具有整合式鐵氧體磁珠濾波器補償的 17-VIN、3-A 低雜訊和低漣波降壓轉換器 3-A pin-to-pin compatible product offering higher current.

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具有整合式鐵氧體磁珠濾波器補償的 17-V、2-A 低雜訊和低漣波降壓模組 Module version with integrated inductor for ease of design

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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 19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
	Analog Design Journal	Clutter‐free power supplies for RF converters in radar applications (Part 1)		2021年 3月 18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

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

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

TPS62912EVM-077 (BSR077-002) 評估模組 (EVM) 有助於評估採用 2 mm x 2 mm QFN 小型封裝，具有整合式鐵氧體磁珠濾波器補償的 TPS62912 2-A 低雜訊和低漣波降壓轉換器。EVM 使用高達 17 V 的輸入電壓輸出 3.3-V 輸出電壓。由於雜訊極低，TPS62912 是對雜訊敏感電路中的低壓降 (LDO) 線性穩壓器的高效率替代方案，如資料轉換器、以及時鐘、電信基礎架構、醫療、測試與量測以及航太與國防應用中的放大器。

使用指南: PDF | HTML