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電源模組 (整合式電感器)

LMZ10503

現行

採用引腳表面安裝 TO 封裝的 5.5V、3A 電源模組

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產品規格表

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TPSM82823 現行 具整合式電感器、採用 2.0-mm × 2.5-mm × 1.1-mm uSiP 封裝的 5.5-V 輸入、3-A 降壓模組 Next-generation module with higher accuracy and smaller BOM size.
TPSM82823A 現行 採用 µSiP 封裝，且具有整合式電感器和強制 PWM 模式的 5.5-V 輸入、3-A 降壓轉換器 Low-noise DC/DC module family with 1 A to 3 A and 23-mm² total BOM size.
最新 TPSM828303 現行 採用 QFN 封裝，且具整合式電感器的 2.25-V 至 5.5-V、3-A 低雜訊降壓模組 Smaller total BOM size and improved accuracy

LMZ10503

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, Synchronous Buck Type Module Iout (max) (A) 3 Vin (min) (V) 2.95 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 5 Switching frequency (min) (kHz) 750 Switching frequency (max) (kHz) 1160 Features EMI Tested, Enable, Tracking Control mode Voltage mode Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 3 Vin (min) (V) 2.95 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 5 Switching frequency (min) (kHz) 750 Switching frequency (max) (kHz) 1160 Features EMI Tested, Enable, Tracking Control mode Voltage mode Duty cycle (max) (%) 100
TO-PMOD (NDW) 7 139.9032 mm² 10.16 x 13.77
  • Integrated Shielded Inductor
  • Flexible Start-up Sequencing Using External Soft Start, Tracking, and Precision Enable
  • Protection Against In-Rush Currents and Faults Such as Input UVLO and Output Short Circuit
  • Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
  • Pin-to-Pin Compatible With
    • LMZ10504 (4 A / 20 W Maximum)
    • LMZ10505 (5 A / 25 W Maximum)
  • Electrical Specifications
    • 15-W Maximum Total Output Power
    • Up to 3-A Output Current
    • Input Voltage Range 2.95 V to 5.5 V
    • Output Voltage Range 0.8 V to 5 V
    • ±1.63% Feedback Voltage Accuracy Over Temperature
  • Performance Benefits
    • Operates at High Ambient Temperatures
    • High Efficiency up to 96% Reduces System Heat Generation
    • Low Radiated Emissions (EMI) Tested to EN55022 Class B Standard (EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See Table 9 and layout information for more regarding device under test.)
    • Fast Transient Response for Powering FPGAs and ASICs
  • Create a Custom Design Using the LMZ10503 With the WEBENCH® Power Designer
  • Integrated Shielded Inductor
  • Flexible Start-up Sequencing Using External Soft Start, Tracking, and Precision Enable
  • Protection Against In-Rush Currents and Faults Such as Input UVLO and Output Short Circuit
  • Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
  • Pin-to-Pin Compatible With
    • LMZ10504 (4 A / 20 W Maximum)
    • LMZ10505 (5 A / 25 W Maximum)
  • Electrical Specifications
    • 15-W Maximum Total Output Power
    • Up to 3-A Output Current
    • Input Voltage Range 2.95 V to 5.5 V
    • Output Voltage Range 0.8 V to 5 V
    • ±1.63% Feedback Voltage Accuracy Over Temperature
  • Performance Benefits
    • Operates at High Ambient Temperatures
    • High Efficiency up to 96% Reduces System Heat Generation
    • Low Radiated Emissions (EMI) Tested to EN55022 Class B Standard (EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See Table 9 and layout information for more regarding device under test.)
    • Fast Transient Response for Powering FPGAs and ASICs
  • Create a Custom Design Using the LMZ10503 With the WEBENCH® Power Designer

The LMZ10503 power module is a complete, easy-to-use DC-DC solution capable of driving up to a 3-A load with exceptional power conversion efficiency, output voltage accuracy, line and load regulation. The LMZ10503 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ10503 can accept an input voltage rail between 2.95 V and 5.5 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. One megahertz fixed-frequency PWM switching provides a predictable EMI characteristic. Two external compensation components can be adjusted to set the fastest response time, while allowing the option to use ceramic and/or electrolytic output capacitors. Externally programmable soft-start capacitor facilitates controlled startup. The LMZ10503 is a reliable and robust solution with the following features: lossless cycle-by-cycle peak current limit to protect for over current or short-circuit fault, thermal shutdown, input undervoltage lockout, and prebiased start-up.

The LMZ10503 power module is a complete, easy-to-use DC-DC solution capable of driving up to a 3-A load with exceptional power conversion efficiency, output voltage accuracy, line and load regulation. The LMZ10503 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ10503 can accept an input voltage rail between 2.95 V and 5.5 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. One megahertz fixed-frequency PWM switching provides a predictable EMI characteristic. Two external compensation components can be adjusted to set the fastest response time, while allowing the option to use ceramic and/or electrolytic output capacitors. Externally programmable soft-start capacitor facilitates controlled startup. The LMZ10503 is a reliable and robust solution with the following features: lossless cycle-by-cycle peak current limit to protect for over current or short-circuit fault, thermal shutdown, input undervoltage lockout, and prebiased start-up.
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類型 標題 日期
* Data sheet LMZ10503 3-A Power Module With 5.5-V Maximum Input Voltage datasheet (Rev. L) PDF | HTML 2019年 4月 15日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note AN-2013 LMZ1050x/LMZ1050xEXT SIMPLE SWITCHER Power Module (Rev. E) 2017年 2月 2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-2022 LMZ1050x Evaluation Board (Rev. D) 2013年 4月 24日
User guide LMZ10503/04 Demo Board SIMPLE SWITCHER Power Module Quick Start Guide (Rev. B) 2013年 4月 24日
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013年 4月 23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
Design guide SIMPLE SWITCHER® Design Guide 2011年 4月 11日
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005年 7月 12日

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模擬型號

LMZ10503 PSpice Average Model

SNVM288.ZIP (47 KB) - PSpice Model
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模擬型號

LMZ10503 PSpice Transient Model

SNVM287.ZIP (163 KB) - PSpice Model
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模擬型號

LMZ10503 Unencrypted PSpice Average Model

SNVM736.ZIP (1 KB) - PSpice Model
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模擬型號

LMZ10503 Unencrypted PSpice Transient Model

SNVM735.ZIP (2 KB) - PSpice Model
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計算工具

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

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