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DC/DC power modules
Power modules (integrated inductor)

LMZ31520

現行

採用 15x16x5.8mm QFN 封裝的 3V 至 14.5V、20A 降壓電源模組

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最新 TPSM843B22 現行 4-V 至 18-V 輸入、進階電流模式、20-A 同步 SWIFT™ 降壓電源模組 Higher switching frequency and external sync in a smaller, overmolded package
功能相似於所比較的產品
TPSM41625 現行 4-V 至 16-V、25-A 堆疊式電源模組 Smaller packaged module offering higher current rating and frequency synchronization.

LMZ31520

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 20 Vin (max) (V) 14.5 Vin (min) (V) 3 Vout (max) (V) 3.6 Vout (min) (V) 0.6 Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck, Synchronous Buck Features EMI Tested, Enable, Light Load Efficiency, Power good, Remote Sense Control mode D-CAP Switching frequency (max) (Hz) 850000 Switching frequency (min) (Hz) 300000
Iout (max) (A) 20 Vin (max) (V) 14.5 Vin (min) (V) 3 Vout (max) (V) 3.6 Vout (min) (V) 0.6 Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck, Synchronous Buck Features EMI Tested, Enable, Light Load Efficiency, Power good, Remote Sense Control mode D-CAP Switching frequency (max) (Hz) 850000 Switching frequency (min) (Hz) 300000
B4QFN (RLG) 72 240 mm² 16 x 15
  • Complete Integrated Power Solution;
    Smaller than a Discrete Design
  • 15 mm × 16 mm × 5.8 mm Package Size
    - Pin Compatible with LMZ31530
  • Ultra-Fast Load Step Response
  • Efficiencies Up To 96%
  • Wide-Output Voltage Adjust
    0.6 V to 3.6 V, with 1% Reference Accuracy
  • Optional Split Power Rails Allows
    Input Voltage Down to 3 V
  • Selectable Switching Frequency
    (300 kHz to 850 kHz)
  • Selectable Slow-Start
  • Adjustable Overcurrent Limit
  • Power Good Output
  • Output Voltage Sequencing
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 8.6°C/W
  • Meets EN55022 Class A Emissions
    - Integrated Shielded Inductor
  • Create a Custom Design Using the LMZ31520 With the WEBENCH® Power Designer
  • Complete Integrated Power Solution;
    Smaller than a Discrete Design
  • 15 mm × 16 mm × 5.8 mm Package Size
    - Pin Compatible with LMZ31530
  • Ultra-Fast Load Step Response
  • Efficiencies Up To 96%
  • Wide-Output Voltage Adjust
    0.6 V to 3.6 V, with 1% Reference Accuracy
  • Optional Split Power Rails Allows
    Input Voltage Down to 3 V
  • Selectable Switching Frequency
    (300 kHz to 850 kHz)
  • Selectable Slow-Start
  • Adjustable Overcurrent Limit
  • Power Good Output
  • Output Voltage Sequencing
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 8.6°C/W
  • Meets EN55022 Class A Emissions
    - Integrated Shielded Inductor
  • Create a Custom Design Using the LMZ31520 With the WEBENCH® Power Designer

The LMZ31520 power module is an easy-to-use integrated power solution that combines a 20-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.

The 15×16×5.8 mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. Achieves greater than 95% efficiency, has ultra-fast load step response and excellent power dissipation capability with a thermal impedance of 8.6°C/W. The LMZ31520 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering a wide range of ICs and systems. Advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.

The LMZ31520 power module is an easy-to-use integrated power solution that combines a 20-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.

The 15×16×5.8 mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. Achieves greater than 95% efficiency, has ultra-fast load step response and excellent power dissipation capability with a thermal impedance of 8.6°C/W. The LMZ31520 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering a wide range of ICs and systems. Advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.
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功能相同，但引腳輸出與所比較的產品不同
最新 TPSM8287A12 現行 具 I2C 和整合式電感器的 6-V 輸入、12-A 可堆疊 DC-DC 降壓模組 Alternative, scalable solution with smaller BOM size, frequency synch and I2C option; lower input voltage range

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類型 標題 日期
* Data sheet LMZ31520 20-A Power Module With 3-V to 14.5-V Input in QFN Package datasheet (Rev. E) PDF | HTML 2018年 9月 4日
Application note Soldering Considerations for Power Modules (Rev. C) PDF | HTML 2024年 3月 14日
User guide LMZ315x0 Power Module Evaluation Module User's Guide (Rev. B) PDF | HTML 2021年 12月 14日
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) 2021年 10月 14日
Application note Soldering Requirements for BQFN Packages (Rev. C) 2020年 3月 5日
White paper Simplify low EMI design with power modules 2017年 11月 20日
Technical article FPGA power made simple: rail requirements PDF | HTML 2017年 11月 6日
Application note Working With QFN Power Modules (Rev. A) 2017年 6月 8日
Application note Powering LMZ3 SIMPLE SWITCHER Power Modules From 3.3 V 2013年 7月 2日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LMZ31520EVM-001 — LMZ31520 3V 至 14.5V、20A 降壓式電源模組評估板

The LMZ31520 EVM is designed to help the user easily evaluate and test the operation and functionality of the LMZ31520 buck module. The EVM convert a 3-V to 14.5-V input voltage to a regulated 0.6-V to 3.6-V output voltage that delivers up to 20 A in a 16-mm x 15-mm QFN package. The output (...)

使用指南: PDF | HTML
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模擬型號

LMZ31520 PSpice Transient Model

SLVMA59.ZIP (96 KB) - PSpice Model
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模擬型號

LMZ31520 Unencrypted PSpice Transient Model

SLVMAS0.ZIP (8 KB) - PSpice Model
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參考設計

PMP10613 — Xilinx Zynq 7000 系列 (XC7Z045) 20W 參考設計

The PMP10613 reference design provides all the power supply rails necessary to power Xilinx® Zynq® 7000 series (XC7Z045)  FPGA.   This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  It (...)
Test report: PDF
電路圖: PDF
參考設計

PMP9365 — Altera® Stratix® V FPGA 電源解決方案

The PMP9365 reference design provides all the power supply rails necessary to power Altera's Stratix V family of FPGAs.  This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  It also features two (...)
Test report: PDF
電路圖: PDF
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