Product details

Iout (Max) (A) 2 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) 2 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
  • 2-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 LMZ20502 With WEBENCH® Power Designer
  • Integrated Inductor
  • Miniature 3.5 mm × 3.5 mm × 1.75 mm Package
  • 2-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 LMZ20502 With WEBENCH® Power Designer

The LMZ20502 nano module regulator is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 2 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 LMZ20502 requires only five external components and has a pin-out designed for simple, optimum PCB layout. The device provides 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, refer to the following document: SNOA401.

The LMZ20502 nano module regulator is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 2 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 LMZ20502 requires only five external components and has a pin-out designed for simple, optimum PCB layout. The device provides 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, refer to the following document: SNOA401.

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Technical documentation

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Type Title Date
* Data sheet LMZ20502 2-A Nano Module datasheet (Rev. D) 24 Aug 2018
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
Technical article FPGA power made simple: design steps 20 Nov 2017
White paper Benefits and trade-offs of various power-module package options 02 Aug 2017
Technical article Smart power-supply designs for smart factories 07 Dec 2015
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

LMZ20502EVM — LMZ20502 2A SIMPLE SWITCHER® Nano Module Evaluation Board

The LMZ20502EVM evaluation board is capable of driving up to 2A 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 2.7V to 5.5V input, based on the resistor (...)

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Simulation model

LMZ20502 PSpice Transient Model

SNVM475.ZIP (64 KB) - PSpice Model
Simulation model

LMZ20502 Unencrypted PSpice Transient Model

SNVM772.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-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 (...)
Reference designs

PMP10743 — 7V to 40V Wide Input, 3-Output SIMPLE SWITCHER® Reference Design Using LMR14050 and LMZ20502

The reference design shows the wide input voltage capability, simple layout, and small solution size of the LMR14050 SIMPLE SWITCHER® Buck Converter and the LMZ20502 Nano Module. The LMR14050 provides a 5V output rail which feeds into two LMZ20502 Nano Modules.  The modules provide a 3.3V (...)
Reference designs

TIDA-00783 — Space Optimized Wide Vin Triple-Output Power Module Reference Design

The TIDA-00783.1 reference design is a triple output wide Vin power module design. It provides 3.3V, 1.8V and 1.2V output, at 6W total power. The layout is optimized for space constrained applications.
Reference designs

PMP10595 — Minature 2A Power Supply with LMZ20502 Nano Module - Reference Design

The PMP10595 reference design is a miniature 1.8V, 2A output power supply using the SIMPLE SWITCHER® LMZ20502 nano module. The reference design takes advantage of the miniature package and high level integration of the LMZ20502 to achieve small solution size, which is about 5mm x 6mm (30 sq. (...)
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