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


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 open-in-new Find other Buck modules (integrated inductor)


  • 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
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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) Sep. 01, 2021
Application note Soldering Considerations for Power Modules (Rev. B) May 17, 2021
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. C) Feb. 27, 2018
White paper Benefits and trade-offs of various power-module package options Aug. 02, 2017
Selection guide TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
Technical article When to select an integrated inductor DC/DC module over a linear regulator May 16, 2016
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) Apr. 23, 2013
Application note AN-2169 LMZ10501 and LMZ10500 SIMPLE SWITCHER Nano Module (Rev. A) Apr. 23, 2013
User guide AN-2283 LMZ20502 / LMZ20501 Evaluation Board Oct. 09, 2012
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 03, 2004

Design & development

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Hardware development

document-generic User guide

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 (...)

  • Vin = 2.7V to 5.5V
  • Vout = 1.8V
  • 1A max load
  • 3.0 x 6.5cm overall PCB size

Design tools & simulation

SNVM504.ZIP (64 KB) - PSpice Model
SNVM771.ZIP (4 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design
TIDA-010065 — 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 for (...)
document-generic Schematic
High efficiency power supply architecture reference design for protection relay processor module
TIDA-010011 — 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 (...)
document-generic Schematic

CAD/CAE symbols

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Ordering & quality

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