Product details

Iout (Max) (A) 1 Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Vout (Min) (V) 0.8 Vout (Max) (V) 3.6 Soft start Fixed Features EMI Tested, Enable, Light Load Efficiency, Power Good Operating temperature range (C) -40 to 125 Iq (Typ) (uA) 72 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 3200 Switching frequency (Min) (kHz) 2500 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
Iout (Max) (A) 1 Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Vout (Min) (V) 0.8 Vout (Max) (V) 3.6 Soft start Fixed Features EMI Tested, Enable, Light Load Efficiency, Power Good Operating temperature range (C) -40 to 125 Iq (Typ) (uA) 72 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 3200 Switching frequency (Min) (kHz) 2500 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
  • 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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Type Title Date
* Data sheet LMZ20501 1-A Nano Module datasheet (Rev. E) 01 Sep 2021
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) 14 Oct 2021
Application note Soldering Considerations for Power Modules (Rev. B) 17 May 2021
White paper Benefits and trade-offs of various power-module package options 02 Aug 2017
Technical article When to select an integrated inductor DC/DC module over a linear regulator 16 May 2016
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23 Apr 2013
Application note AN-2169 LMZ10501 and LMZ10500 SIMPLE SWITCHER Nano Module (Rev. A) 23 Apr 2013
User guide AN-2283 LMZ20502 / LMZ20501 Evaluation Board 09 Oct 2012
Application note Understanding and Applying Current-Mode Control Theory 19 Aug 2007
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12 Jul 2005
Application note AN-643 EMI/RFI Board Design (Rev. B) 03 May 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 (...)

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Simulation model

LMZ20501 PSpice Transient Model

SNVM504.ZIP (64 KB) - PSpice Model
Simulation model

LMZ20501 Unencrypted PSpice Transient Model

SNVM771.ZIP (4 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

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 (...)
Reference designs

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 (...)
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