TPS62912

Name: TPS62912
Brand: TI
SKU: TPS62912
Price: 0.926 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

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

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.005

Duty cycle (max) (%)

100

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

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.005

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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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	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 Architectures With Low-Noise Power Devices (Rev. A)	PDF \| HTML	04 Nov 2024
	Technical article	How to enhance power and signal integrity with low noise and low ripple design techniques	PDF \| HTML	25 Sep 2024
	White paper	Simplifying Power Conversion in High-Voltage Systems	PDF \| HTML	09 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
	Analog Design Journal	Clutter‐free power supplies for RF converters in radar applications (Part 1)		18 Mär 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

Das Evaluierungsmodul (EVM) TPS62912EVM-077 (BSR077-002) erleichtert die Evaluierung des rauscharmen 2-A-Abwärtswandlers TPS62912 mit geringer Welligkeit und integrierter Ferrit-Perlenfilterkompensation in einem kleinen 2 mm x 2 mm QFN-Gehäuse. Das EVM liefert eine 3,3-V-Ausgangsspannung aus (...)

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