Product details

Vin (Min) (V) 3 Vin (Max) (V) 17 Vout (Min) (V) 0.8 Vout (Max) (V) 5.5 Iout (Max) (A) 3 Iq (Typ) (uA) 5000 Switching frequency (Min) (kHz) 900 Switching frequency (Max) (kHz) 2400 Features Enable, Frequency Synchronization, Output Discharge, Over Current Protection, Power Good, Soft Start Adjustable, Spread Spectrum, Synchronous Rectification, UVLO Fixed Rating Catalog Regulated outputs (#) 1 Control mode Current Mode Duty cycle (Max) (%) 100
Vin (Min) (V) 3 Vin (Max) (V) 17 Vout (Min) (V) 0.8 Vout (Max) (V) 5.5 Iout (Max) (A) 3 Iq (Typ) (uA) 5000 Switching frequency (Min) (kHz) 900 Switching frequency (Max) (kHz) 2400 Features Enable, Frequency Synchronization, Output Discharge, Over Current Protection, Power Good, Soft Start Adjustable, Spread Spectrum, Synchronous Rectification, UVLO Fixed Rating Catalog Regulated outputs (#) 1 Control mode Current Mode Duty cycle (Max) (%) 100
VQFN-HR (RPU) 10 4 mm² 2 x 2
  • Low output 1/f noise < 20 µVRMS(100 Hz to 100 kHz)
  • Low output voltage ripple < 10 µVRMS 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 RDSon
  • 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 µVRMS(100 Hz to 100 kHz)
  • Low output voltage ripple < 10 µVRMS 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 RDSon
  • 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 µVRMS.

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 µVRMS.

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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Technical documentation

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Type Title Date
* 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 Mar 2021
More literature Low-Noise and Low-Ripple Techniques for a Supply Without an LDO (Rev. A) PDF | HTML 11 Apr 2022
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 Dec 2021
Application note Powering the AFE7920 with the TPS62913 Low-Ripple and Low-Noise Buck Converter (Rev. A) PDF | HTML 13 Dec 2021
More literature Low-noise and low-ripple techniques for a supply without an LDO PPT 02 Dec 2021
Application note Demystifying and Mitigating Power Supply Ripple and Noise Implication on AFE8092 (Rev. B) PDF | HTML 16 Nov 2021
Application note 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 Mar 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 24 Nov 2020
Technical article Minimize noise and ripple with a low-noise buck converter 21 Oct 2020
Application note Powering Sensitive Noise ADC Designs with the TPS62913 Low-Noise Buck Converter PDF | HTML 30 Sep 2020
Certificate TPS62913EVM-077 EU Declaration of Conformity (DoC) 20 Jul 2020
Technical article Understanding and managing buck regulator output ripple 18 Jun 2020
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Application note Output Ripple Voltage for Buck Switching Regulator (Rev. A) 13 Oct 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

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The LMK5B33414 evaluation module (EVM) is a platform for device evaluation, compliance testing, and system prototyping for the LMK5B33414 network clock generator and synchronizer.

LMK5B33414 integrates three analog phase-locked loops (APLLs) and three digital PLLs (DPLLs) with programmable-loop (...)

User guide: PDF | HTML
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Evaluation board

LP-AM263 — AM263x Arm®-based MCU general-purpose LaunchPad™ development kit

LP-AM263 is a cost-optimized development board for Sitara™ high-performance microcontrollers (MCUs) from the AM263x series. This board is ideal for initial evaluation and prototyping as it provides a standardized and easy-to-use platform to develop your next application.

LP-AM263 is equipped with a (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS62913-IBB-EVM — TPS62913 evaluation module 17-V, low-noise, low-ripple, inverting buck-boost configuration converter

The TPS62913-IBB-EVM (BSR161A) evaluation module (EVM) facilitates the evaluation of the TPS62912 2-A and TPS62913 3-A pin-to-pin compatible low-noise (< 20 μVRMS) and low ripple (< 10 μVRMS) buck converters in small 2-mm by 2-mm QFN packages when used in an inverting (...)
Not available on TI.com
Evaluation board

TPS62913EVM-077 — 17-V, 3-A low noise/low ripple buck converter with integrated ferrite bead filter compensation EVM

The TPS62913EVM-077 (BSR077-003) evaluation module (EVM) facilitates the evaluation of the TPS62913 3-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 1.2-V output voltage from input voltages between 3 (...)
Not available on TI.com
Simulation model

TPS62913 PSpice Transient Model

SLVMDF8.ZIP (300 KB) - PSpice Model
Simulation model

TPS62913 SIMPLIS Transient and Average Model (Rev. A)

SLVMDI9A.ZIP (993 KB) - SIMPLIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Gerber file

BSR077B Gerbers

SLVC818.ZIP (509 KB)
Reference designs

TIDA-010230 — Multi-channel RF transceiver, low-noise clocking reference design for radar and EW applications

In modern radar and electronic warfare (EW) systems, active electronically-scanned array (AESA) antenna systems are often used with high speed multi-channel RF transceivers. These systems require very low noise clocking capable of precise channel-to-channel skew adjustment to achieve the optimal (...)
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