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TPS62914

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具有整合式鐵氧體磁珠濾波器補償的 17V VIN、4.5A 低雜訊低漣波降壓轉換器

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TPS62914

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產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 150 Type Converter Iout (max) (A) 4 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) 4 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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類型 標題 日期
* 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 2024年 4月 29日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日

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開發板

TPS62916EVM — 適用於 17-VIN、6-A 低雜訊低漣波降壓轉換器的 TPS62916 評估模組

TPS62916 評估模組 (EVM) (BSR265) 便利對 TPS62916 進行評估，其採用超薄四方扁平封裝無引線 HotRod™ (VQFN-HR) 封裝，是一款低雜訊 (<20 μVRMS) 與低漣波 (<10 μVRMS) 降壓電源轉換器。TPS62916EVM 使用 6-A TPS62916 從介於 3 V 到 17 V 之間的輸入電壓輸出 1.2-V 輸出電壓

使用指南: PDF | HTML
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  • 進行中可靠性監測
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