TPSM82912

Name: TPSM82912
Brand: TI
SKU: TPSM82912
Price: 1.9 USD

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17-V, 2-A low-noise and low-ripple buck module with integrated ferrite bead filter compensation

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Data sheet

document-pdfAcrobat TPSM8291x 3-V to 17-V, 2-A/3-A Low-Noise and Low-Ripple Buck Power Module with Integrated Ferrite Bead Filter Compensation datasheet (Rev. C) PDF | HTML

TPSM82912

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Data sheet

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Product details

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck, Synchronous Buck

Type

Module

Iout (max) (A)

2

Vin (min) (V)

3

Vin (max) (V)

17

Vout (min) (V)

0.8

Vout (max) (V)

5.5

Switching frequency (min) (kHz)

1000

Switching frequency (max) (kHz)

2200

Features

Enable, Frequency synchronization, Low Noise, Output discharge, Overcurrent protection, Power good, Remote Sense, Spread Spectrum

Control mode

current mode

Duty cycle (max) (%)

100

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck, Synchronous Buck

Type

Module

Iout (max) (A)

2

Vin (min) (V)

3

Vin (max) (V)

17

Vout (min) (V)

0.8

Vout (max) (V)

5.5

Switching frequency (min) (kHz)

1000

Switching frequency (max) (kHz)

2200

Features

Enable, Frequency synchronization, Low Noise, Output discharge, Overcurrent protection, Power good, Remote Sense, Spread Spectrum

Control mode

current mode

Duty cycle (max) (%)

100

B0QFN (RDU)

28

24.75 mm² 5.5 x 4.5

Low output 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 125°C junction temperature range
- –55°C to 125°C for -ET versions
Create a custom design using the TPSM8291x with the WEBENCH Power Designer

Low output 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 125°C junction temperature range
- –55°C to 125°C for -ET versions
Create a custom design using the TPSM8291x with the WEBENCH Power Designer

The TPSM8291x devices are a family of high-efficiency, low-noise and low-ripple current mode synchronous buck power modules. 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 feature 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 an integrated capacitor on the NR/SS pin. An external capacitor can be added to the module for additional filtering.

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

The TPSM8291x devices are a family of high-efficiency, low-noise and low-ripple current mode synchronous buck power modules. 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 feature 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 an integrated capacitor on the NR/SS pin. An external capacitor can be added to the module for additional filtering.

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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TPSM82913

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17-V VIN, 3-A low-noise and low-ripple buck module with integrated ferrite bead filter compensation Higher current module

Technical documentation

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	Type	Title		Date
*	Data sheet	TPSM8291x 3-V to 17-V, 2-A/3-A Low-Noise and Low-Ripple Buck Power Module with Integrated Ferrite Bead Filter Compensation datasheet (Rev. C)	PDF \| HTML	18 Jul 2023
	Application brief	Solving Power Design Challenges in Semiconductor Test and ATE Applications	PDF \| HTML	02 Aug 2024
	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 Oct 2023
	Application brief	Solving Power Design Challenges in Medical Imaging Applications	PDF \| HTML	12 Jul 2023
	EVM User's guide	TPSM8291x Step-Down Power Module Evaluation Module User's Guide	PDF \| HTML	05 Oct 2022
	Certificate	TPSM82912EVM EU Declaration of Conformity (DoC)		27 Sep 2022

Design & development

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Evaluation board

TPSM82912EVM — TPSM82912 evaluation module for 2-A low-noise and low-ripple buck module

The TPSM82912 evaluation module (EVM) (BSR213) facilitates the evaluation of the TPSM82912. TPSM82912 and TPSM82913 are pin-to-pin compatible low-noise ( < 20 μVRMS) and low-ripple ( < 10 μVRMS) buck power modules in small 4.5 mm by 5.5 mm QFN packages. The BSR213-001 uses the 3 A TPSM82913 to (...)

User guide: PDF | HTML