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TPS62916

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17-VIN, 6-A low-noise low-ripple buck converter with integrated ferrite-bead filter

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Data sheet

TPS62916

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 150 Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 17 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2200 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 Iq (typ) (µA) 5000 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 150 Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 17 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2200 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 Iq (typ) (µA) 5000 Duty cycle (max) (%) 100
VQFN-HR (RPY) 14 7.5 mm² 2.5 x 3
  • Low output 1/f noise < 20µVRMS(100Hz to 100kHz)
  • Low output voltage ripple < 10µVRMS after ferrite bead
  • High PSRR of > 65dB (up to 100kHz)
  • 2.2MHz, 1.4MHz, or 1.0MHz fixed frequency peak current mode control
  • Synchronizable with external clock (optional)
  • Integrated loop compensation supports ferrite bead for second stage L-C filter with 30dB attenuation (optional)
  • Spread spectrum modulation (optional)
  • 3.0V to 17V input voltage range
  • 0.8V to 5.5V output voltage range
  • 25mΩ/7mΩ RDSon
  • Output voltage accuracy of ±1% over temperature
  • 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. mm × 3.0mm QFN with 0.5mm pitch
  • Create a custom design using the TPS6291x with the WEBENCH Power Designer
  • Low output 1/f noise < 20µVRMS(100Hz to 100kHz)
  • Low output voltage ripple < 10µVRMS after ferrite bead
  • High PSRR of > 65dB (up to 100kHz)
  • 2.2MHz, 1.4MHz, or 1.0MHz fixed frequency peak current mode control
  • Synchronizable with external clock (optional)
  • Integrated loop compensation supports ferrite bead for second stage L-C filter with 30dB attenuation (optional)
  • Spread spectrum modulation (optional)
  • 3.0V to 17V input voltage range
  • 0.8V to 5.5V output voltage range
  • 25mΩ/7mΩ RDSon
  • Output voltage accuracy of ±1% over temperature
  • 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. mm × 3.0mm QFN with 0.5mm 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 designed for noise sensitive applications that normally use an LDO for post regulation such as high-speed ADCs, clock and jitter cleaner, serializer, de-serializer, and radar applications.

To reduce the output voltage ripple, the device loop compensation is designed to operate with an optional second-stage ferrite bead L-C filter. Low-frequency noise levels, similar to a low-noise LDO, are further achieved by filtering the internal voltage reference with a capacitor connected to the NR/SS pin. Combined, these features allow for an output voltage ripple below 10µVRMS.

The device operates at a fixed switching frequency of 2.2MHz, 1.4MHz, or 1MHz, and can be synchronized to an external clock. An 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 designed for noise sensitive applications that normally use an LDO for post regulation such as high-speed ADCs, clock and jitter cleaner, serializer, de-serializer, and radar applications.

To reduce the output voltage ripple, the device loop compensation is designed to operate with an optional second-stage ferrite bead L-C filter. Low-frequency noise levels, similar to a low-noise LDO, are further achieved by filtering the internal voltage reference with a capacitor connected to the NR/SS pin. Combined, these features allow for an output voltage ripple below 10µVRMS.

The device operates at a fixed switching frequency of 2.2MHz, 1.4MHz, or 1MHz, and can be synchronized to an external clock. An 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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* Data sheet TPS6291x 3V to 17V, 4.5A/ 6A /8A Low Noise and Low Ripple Buck Converter With Integrated Ferrite Bead Filter Compensation datasheet (Rev. B) PDF | HTML 29 Apr 2024
EVM User's guide TPS62916 Step-Down Converter Evaluation Module User's Guide PDF | HTML 23 Oct 2023
Certificate TPS62916EVM EU Declaration of Conformity (DoC) 10 Oct 2023
More literature Low-Noise and Low-Ripple Techniques for a Supply Without an LDO (Rev. B) PDF | HTML 07 Dec 2021

Design & development

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Evaluation board

TPS62916EVM — TPS62916 evaluation module for 17-VIN, 6-A low-noise low-ripple buck converter

The TPS62916 evaluation module (EVM) (BSR265) facilitates the evaluation of the TPS62916, which is a low-noise (<20 μVRMS) and low-ripple (<10 μVRMS) buck power converter in a very thin quad flatpack no-lead HotRod™ (VQFN-HR) package. TPS62916EVM uses the 6-A TPS62916 to output a 1.2-V output (...)

User guide: PDF | HTML
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Simulation model

TPS62916 SIMPLIS Model

SLVME52.ZIP (503 KB) - SIMPLIS Model
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VQFN-HR (RPY) 14 View options
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