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DC/DC 電源模組
電源模組 (整合式電感器)

LMZ14202

現行

採用有引腳 SMT-TO 封裝的 SIMPLE SWITCHER® 6V 至 42V、2A 電源模組

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
TPSM63602 現行 採用 4-mm x 6-mm x 1.8-mm 封裝的 3V 至 36V 輸入、1V 至 16V 輸出、2A 降壓模組 Smaller QFN packaging designed for low EMI.
TPSM63603 現行 高密度、3-V 至 36-V 輸入、1-V 至 16-V 輸出、3-A 電源模組 Smaller QFN packaging designed for low EMI.

LMZ14202

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Iout (max) (A) 2 Vin (min) (V) 6 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features EMI Tested, Enable, Tracking Control mode Constant on-time (COT) Duty cycle (max) (%) 92.5
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Iout (max) (A) 2 Vin (min) (V) 6 Vin (max) (V) 42 Vout (min) (V) 0.8 Vout (max) (V) 6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features EMI Tested, Enable, Tracking Control mode Constant on-time (COT) Duty cycle (max) (%) 92.5
TO-PMOD (NDW) 7 139.9032 mm² 10.16 x 13.77
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-Up Sequencing Using External Soft-
    Start and Precision Enable
  • Protection Against Inrush Currents and Faults
    Such as Input UVLO and Output Short Circuit
  • Junction Temperature Range: –40°C to 125°C
  • Single Exposed Pad and Standard Pinout for Easy
    Mounting and Manufacturing
  • Fast Transient Response for Powering FPGAs
    and ASICs
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible Family:
    • LMZ14203/2/1 (42 V Maximum; 3 A, 2 A,
      1 A)
    • LMZ12003/2/1 (20 V Maximum; 3 A, 2 A, 1 A)
  • Fully Enabled for WEBENCH Power Designer
  • Electrical Specifications
    • 12-W Maximum Total Output Power
    • Up to 2-A Output Current
    • Input Voltage Range: 6 V to 42 V
    • Output Voltage Range: 0.8 V to 6 V
    • Efficiency up to 90%
  • Performance Benefits
    • Operates at High Ambient Temperature With
      No Thermal Derating
    • High Efficiency Reduces System Heat Generation
    • Low Radiated Emissions (EMI) Tested With
      EN55022 Class B Standard
    • Low External Component Count
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-Up Sequencing Using External Soft-
    Start and Precision Enable
  • Protection Against Inrush Currents and Faults
    Such as Input UVLO and Output Short Circuit
  • Junction Temperature Range: –40°C to 125°C
  • Single Exposed Pad and Standard Pinout for Easy
    Mounting and Manufacturing
  • Fast Transient Response for Powering FPGAs
    and ASICs
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible Family:
    • LMZ14203/2/1 (42 V Maximum; 3 A, 2 A,
      1 A)
    • LMZ12003/2/1 (20 V Maximum; 3 A, 2 A, 1 A)
  • Fully Enabled for WEBENCH Power Designer
  • Electrical Specifications
    • 12-W Maximum Total Output Power
    • Up to 2-A Output Current
    • Input Voltage Range: 6 V to 42 V
    • Output Voltage Range: 0.8 V to 6 V
    • Efficiency up to 90%
  • Performance Benefits
    • Operates at High Ambient Temperature With
      No Thermal Derating
    • High Efficiency Reduces System Heat Generation
    • Low Radiated Emissions (EMI) Tested With
      EN55022 Class B Standard
    • Low External Component Count

The LMZ14202, SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC that can drive up to 2-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14202 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14202 can accept an input voltage rail between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14202 only requires three external resistors and four external capacitors to complete the power solution. The LMZ14202 is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, output current limit, and allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

The LMZ14202, SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC that can drive up to 2-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14202 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14202 can accept an input voltage rail between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14202 only requires three external resistors and four external capacitors to complete the power solution. The LMZ14202 is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, output current limit, and allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.
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技術文件

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類型 標題 日期
* Data sheet LMZ14202 SIMPLE SWITCHER® 6V to 42V, 2A Power Module in Leaded SMT-TO Package datasheet (Rev. J) PDF | HTML 2015年 9月 3日
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) 2021年 10月 14日
Application note Practical Thermal Design With DC/DC Power Modules (Rev. A) 2019年 11月 20日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
White paper Simplify low EMI design with power modules 2017年 11月 20日
White paper Benefits and trade-offs of various power-module package options 2017年 8月 2日
White paper Comparing the Merits of Integrated Power Modules versus Discrete Regulators (Rev. B) 2016年 9月 15日
Application note Design Summary LMZ1xxx and LMZ2xxx Power Module Family (Rev. B) 2016年 1月 20日
Application note AN-2027 Inverting Application for the LMZ14203 SIMPLE SWITCHER Power Module (Rev. A) 2013年 5月 6日
EVM User's guide AN-2024 LMZ1420x / LMZ1200x Evaluation Board (Rev. E) 2013年 4月 24日
Application note AN-2026 Effect of PCB Design on Thermal Performance of SIMPLE SWITCHER Modules (Rev. A) 2013年 4月 23日
Application note AN-2052 Texas Instruments SIMPLE SWITCHER Power Modules and EMI (Rev. C) 2013年 4月 23日
Application note AN-2078 PCB Layout for Texas Instruments SIMPLE SWITCHER Power Modules (Rev. A) 2013年 4月 23日
More literature SIMPLE SWITCHER® Power Modules for Broadcast Video 2012年 4月 2日
More literature SIMPLE SWITCHER® Power Modules for Communications Infrastructure 2012年 4月 2日
More literature SIMPLE SWITCHER® Power Modules for Factory Automation 2012年 4月 2日
More literature SIMPLE SWITCHER® Power Modules for Medical 2012年 4月 2日
More literature SIMPLE SWITCHER® Power Modules for Military 2012年 4月 2日
More literature SIMPLE SWITCHER® Power Modules for Test and Measurement 2012年 4月 2日
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005年 7月 12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

LMZ14202EVAL — Simple Switcher ® 電源模組 42Vin、2A 評估板

The SIMPLE SWITCHER power module evaluation board is optimized for peak performance and increased flexibility. By incorporating additional ceramic and an aluminum filter capacitor, the power module EVAL board demonstrates the low output ripple, fast transient response, and low conducted and (...)

使用指南: PDF
TI.com 無法提供
模擬型號

LMZ14202 Unencrypted PSpice Transient Model

SNVM765.ZIP (3 KB) - PSpice Model
下載
模擬型號

LMZ14202 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM140A.ZIP (196 KB) - PSpice Model
下載
計算工具

LMZ1X-LMZXEXTDESIGN-CALC — LMZ1x/EXT 熱電阻估計

下載
參考設計

TIDA-01056 — 最小化 EMI 的同時最佳化電源供應效率的 20 位元 1MSPS DAQ 參考設計

This reference design for high performance data acquisition (DAQ) systems optimizes power stage in order to reduce power consumption and minimize the effect of EMI from switching regulator by using LMS3635-Q1 buck converter.  This reference designs yields 7.2% efficiency improvement at most (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01054 — 用於消除高效能 DAQ 系統中的 EMI 影響的多軌電源參考設計

The TIDA-01054 reference design helps eliminate the performance degrading effects of EMI on Data Acquisition (DAQ) systems greater than 16 bits with the help of the LM53635 buck converter. The buck converter enables the designer to place power solutions close to the signal path without the (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-010055 — 非隔離電源架構，具有用於保護繼電器模組的診斷參考設計

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01055 — 適用於高效能 DAQ 系統的 ADC 電壓參考緩衝器最佳化參考設計

The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01057 — 將真正 10Vpp 差分輸入的訊號動態範圍最大化至 20 位元 ADC 的參考設計

This reference design is designed for high performance data acquisition(DAQ) systems to improve the dynamic range of 20 bit differential input ADCs. Many DAQ systems require the measurement capability at a wide FSR (Full Scale Range) in order to obtain sufficient signal dynamic range. Many earlier (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01050 — 適用於 18 位元 SAR 資料轉換器的最佳化類比前端 DAQ 系統參考設計

The TIDA-01050 reference design aims to improve the integration, power consumption, performance, and clocking issues typically associated with automatic test equipment. This design is applicable to any ATE system but most applicable to systems requiring a large number of input channels.
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01052 — 使用負電源輸入改進全幅 THD 的 ADC 驅動器參考設計

The TIDA-01052 reference design aims to highlight system performance increases seen using a negative voltage rail on the analog front end driver amplifiers rather than ground. This concept is relative to all analog front ends, however this design is aimed specifically at automatic test equipment.
Design guide: PDF
電路圖: PDF
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