TPS62912

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

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Rauscharmer 2-A-Abwärtswandler mit 17 VIN und geringer Welligkeit und integrierter Ferrit-Perlenfilt

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Datenblatt

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) (Englisch) PDF | HTML

TPS62912

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Iout (max) (A)

2

Vin (min) (V)

3

Vin (max) (V)

17

Topology

Buck

Type

Converter

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

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.005

Iout (max) (A)

2

Vin (min) (V)

3

Vin (max) (V)

17

Topology

Buck

Type

Converter

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

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.005

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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	Typ	Titel		Datum
*	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	23 Mär 2021
	White paper	Simplifying Power Conversion in High-Voltage Systems	PDF \| HTML	09 Nov 2023
	White paper	Simplifying Power Architectures With Low-Noise Power Devices	PDF \| HTML	07 Nov 2023
	Application brief	Solving power design challenges in oscilloscope applications	PDF \| HTML	31 Okt 2023
	Application note	Powering Noise Sensitive LIDAR ADC Designs With TPS62913 Buck Converter	PDF \| HTML	28 Feb 2022
	Design guide	Multichannel RF Transceiver Low-Noise Clocking Ref. Des. for Radar and EW Applic	PDF \| HTML	16 Dez 2021
	Application note	Powering the AFE7920 with the TPS62913 Low-Ripple and Low-Noise Buck Converter (Rev. A)	PDF \| HTML	13 Dez 2021
	Application brief	Multi-Function Pins for Easy Designing	PDF \| HTML	07 Jul 2021
	EVM User's guide	TPS62913 Inverting Buck Boost EVM User Guide	PDF \| HTML	02 Jul 2021
	Analog Design Journal	Clutter‐free power supplies for RF converters in radar applications (Part 1)		18 Mär 2021
	EVM User's guide	TPS6291xEVM-077 User's Guide (Rev. A)	PDF \| HTML	13 Jan 2021
	Technical article	Powering medical imaging applications with DC/DC buck converters	PDF \| HTML	24 Nov 2020
	Technical article	Minimize noise and ripple with a low-noise buck converter	PDF \| HTML	21 Okt 2020
	Application note	Powering Sensitive Noise ADC Designs with the TPS62913 Low-Noise Buck Converter	PDF \| HTML	30 Sep 2020
	Certificate	TPS62912EVM-077 EU Declaration of Conformity (DoC)		20 Jul 2020
	Technical article	Understanding and managing buck regulator output ripple	PDF \| HTML	18 Jun 2020
	Application note	Output Ripple Voltage for Buck Switching Regulator (Rev. A)		13 Okt 2014

Design und Entwicklung

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Evaluierungsplatine

TPS62912EVM-077 — 17-V, 2-A-Abwärtswandler, rauscharm, geringe Welligkeit, mit integrierter Ferrit-Perlenfilter-Kompen

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 (...)

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