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TPS62912

ACTIVO

Detalles del producto

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 EMI & noise features Low Noise 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 EMI & noise features Low Noise 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 mm × 2 mm)
  • 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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 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 23/03/2021
Nota sobre la aplicación Using Low-Noise Buck TPS6291X to Power CMOS Sensor PDF | HTML 17/06/2026
Informe Simplifying Power Architectures With Low-Noise Power Devices (Rev. A) PDF | HTML 4/11/2024
Artículo técnico How to enhance power and signal integrity with low noise and low ripple design techniques PDF | HTML 25/09/2024
Informe Simplifying Power Conversion in High-Voltage Systems PDF | HTML 9/11/2023
Application brief Solving power design challenges in oscilloscope applications PDF | HTML 31/10/2023
Nota sobre la aplicación Powering Noise Sensitive LIDAR ADC Designs With TPS62913 Buck Converter PDF | HTML 28/02/2022
Guía de diseño Multichannel RF Transceiver Low-Noise Clocking Ref. Des. for Radar and EW Applic PDF | HTML 16/12/2021
Nota sobre la aplicación Powering the AFE7920 with the TPS62913 Low-Ripple and Low-Noise Buck Converter (Rev. A) PDF | HTML 13/12/2021
Nota sobre la aplicación Point-of-Load Solutions for Network Interface Cards (NIC) PDF | HTML 8/09/2021
Application brief Multi-Function Pins for Easy Designing PDF | HTML 7/07/2021
Analog Design Journal Clutter‐free power supplies for RF converters in radar applications (Part 1)  18/03/2021
Artículo técnico Powering medical imaging applications with DC/DC buck converters PDF | HTML 24/11/2020
Artículo técnico Minimize noise and ripple with a low-noise buck converter PDF | HTML 21/10/2020
Nota sobre la aplicación Powering Sensitive Noise ADC Designs with the TPS62913 Low-Noise Buck Converter PDF | HTML 30/09/2020
Certificado TPS62912EVM-077 EU Declaration of Conformity (DoC) 20/07/2020
Artículo técnico Understanding and managing buck regulator output ripple PDF | HTML 18/06/2020
Nota sobre la aplicación Output Ripple Voltage for Buck Switching Regulator (Rev. A) 13/10/2014

Diseño y desarrollo

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Placa de evaluación

TPS62912EVM-077 — EVM de convertidor reductor de bajo ruido, bajo rizado, 17 V y 2 A con compensación de filtro de mic

El módulo de evaluación (EVM) TPS62912EVM-077 (BSR077-002) facilita la evaluación del convertidor buck de bajo ruido y baja ondulación de 2 A TPS62912 con compensación de filtro de núcleo de ferrita integrada en un pequeño encapsulado QFN de 2 mm por 2 mm. El EVM emite una tensión de salida de (...)
Guía del usuario: PDF | HTML
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Modelo de simulación

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Modelo de simulación

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