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LMZ20501

ACTIVE

2.7V to 5.5V, 1A High Density Nano Module

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Data sheet

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TPSM828511 ACTIVE 2.7-V to 6-V, 1-A low-noise step-down module with integrated inductor in QFN package Smaller QFN package

LMZ20501

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck, Synchronous Buck Iout (max) (A) 1 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Features EMI Tested, Enable, Light Load Efficiency, Power good Operating temperature range (°C) -40 to 125 Switch current limit (typ) (A) 1.7 Type Converter (Integrated Switch), DC/DC converter, Module Duty cycle (max) (%) 100 Control mode current mode, current mode control Switching frequency (min) (kHz) 2500 Switching frequency (max) (kHz) 3200
Rating Catalog Topology Buck, Synchronous Buck Iout (max) (A) 1 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Features EMI Tested, Enable, Light Load Efficiency, Power good Operating temperature range (°C) -40 to 125 Switch current limit (typ) (A) 1.7 Type Converter (Integrated Switch), DC/DC converter, Module Duty cycle (max) (%) 100 Control mode current mode, current mode control Switching frequency (min) (kHz) 2500 Switching frequency (max) (kHz) 3200
USIP (SIL) 8 See data sheet
  • Integrated inductor
  • Miniature 3.5-mm × 3.5-mm × 1.75-mm package
  • 1-A maximum load current
  • Input voltage range of 2.7 V to 5.5 V
  • Adjustable output voltage range of 0.8 V to 3.6 V
  • ± 1% feedback tolerance over temperature
  • 2.4-µA (maximum) quiescent current in shutdown
  • 3-MHz fixed PWM switching frequency
  • –40°C to 125°C junction temperature range
  • Power-good flag function
  • Pin-selectable switching modes
  • Internal compensation and soft start
  • Current limit, thermal shutdown, and UVLO protection
  • Create a custom design using the LMZ20501 with WEBENCH Power Designer
  • Integrated inductor
  • Miniature 3.5-mm × 3.5-mm × 1.75-mm package
  • 1-A maximum load current
  • Input voltage range of 2.7 V to 5.5 V
  • Adjustable output voltage range of 0.8 V to 3.6 V
  • ± 1% feedback tolerance over temperature
  • 2.4-µA (maximum) quiescent current in shutdown
  • 3-MHz fixed PWM switching frequency
  • –40°C to 125°C junction temperature range
  • Power-good flag function
  • Pin-selectable switching modes
  • Internal compensation and soft start
  • Current limit, thermal shutdown, and UVLO protection
  • Create a custom design using the LMZ20501 with WEBENCH Power Designer

The LMZ20501 nano module regulator is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 1 A of load from an input of up to 5.5 V, with exceptional efficiency and output accuracy in a very small solution size. The innovative package contains the regulator and inductor in a small 3.5 mm × 3.5 mm × 1.75 mm volume, thus saving board space and eliminating the time and expense of inductor selection. The LMZ20501 requires only five external components and has a pin-out designed for simple, optimum PCB layout. The device provides for an easy to use complete design with a minimum number of external components and the TI WEBENCH design tool. TI’s WEBENCH tool includes features such as external component calculation, electrical simulation, and WebTherm. For soldering information, see SNOA401.

The LMZ20501 nano module regulator is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 1 A of load from an input of up to 5.5 V, with exceptional efficiency and output accuracy in a very small solution size. The innovative package contains the regulator and inductor in a small 3.5 mm × 3.5 mm × 1.75 mm volume, thus saving board space and eliminating the time and expense of inductor selection. The LMZ20501 requires only five external components and has a pin-out designed for simple, optimum PCB layout. The device provides for an easy to use complete design with a minimum number of external components and the TI WEBENCH design tool. TI’s WEBENCH tool includes features such as external component calculation, electrical simulation, and WebTherm. For soldering information, see SNOA401.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LMZ20501 1-A Nano Module datasheet (Rev. E) PDF | HTML Sep 1, 2021
Application note Soldering Considerations for Power Modules (Rev. C) PDF | HTML Mar 14, 2024
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) Oct 14, 2021
White paper Benefits and trade-offs of various power-module package options Aug 2, 2017
Technical article When to select an integrated inductor DC/DC module over a linear regulator PDF | HTML May 16, 2016
Application note AN-2169 LMZ10501 and LMZ10500 SIMPLE SWITCHER Nano Module (Rev. A) Apr 23, 2013
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) Apr 23, 2013
Application note Understanding and Applying Current-Mode Control Theory Aug 19, 2007
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations Jul 12, 2005
Application note AN-643 EMI/RFI Board Design (Rev. B) May 3, 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMZ20501EVM — LMZ20501 1A SIMPLE SWITCHER® Nano Module Evaluation Board

The LMZ20501EVM is capable of driving up to 1A load with excellent power conversion efficiency, output voltage accuracy, line and load regulation and load transient response.  The evaluation board is configured for 1.8V output voltage from 2.375V to 5.5V input, based on the resistor voltage (...)

User guide: PDF
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Simulation model

LMZ20501 PSpice Transient Model

SNVM504.ZIP (64 KB) - PSpice model
Supported products & hardware
Simulation model

LMZ20501 Unencrypted PSpice Transient Model

SNVM771.ZIP (4 KB) - PSpice model
Supported products & hardware
Reference design

TIDA-010011 — High efficiency power supply architecture reference design for protection relay processor module

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
Supported products & hardware
Reference design

TIDA-010065 — High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design

This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
USIP (SIL) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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