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LMZM23601

ACTIVE

36-V, 1-A Step-Down DC-DC Power Module in 3.8-mm × 3-mm Package

Product details

Iout (max) (A) 1 Vin (min) (V) 4 Vin (max) (V) 36 Vout (min) (V) 1.2 Vout (max) (V) 15 Soft start Fixed Features EMI Tested, Enable, Frequency synchronization, Light Load Efficiency, Power good Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.0065 Regulated outputs (#) 1 Switching frequency (max) (kHz) 1100 Switching frequency (min) (kHz) 675 Duty cycle (max) (%) 97 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Rating Catalog Control mode current mode
Iout (max) (A) 1 Vin (min) (V) 4 Vin (max) (V) 36 Vout (min) (V) 1.2 Vout (max) (V) 15 Soft start Fixed Features EMI Tested, Enable, Frequency synchronization, Light Load Efficiency, Power good Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.0065 Regulated outputs (#) 1 Switching frequency (max) (kHz) 1100 Switching frequency (min) (kHz) 675 Duty cycle (max) (%) 97 Topology Buck, Inverting Buck-Boost, Synchronous Buck Type Module Rating Catalog Control mode current mode
USIP (SIL) 10 See data sheet
  • 4-V to 36-V wide operating input voltage
  • 1.2-V to 15-V adjustable, and 3.3-V or 5-V fixed output voltage options
  • 1-A Output current
  • Only input and output capacitors needed for 5-V and 3.3-V output designs
  • 27-mm2 Solution size with single-sided layout
  • 28-µA supply current at no load
  • 2-µA shutdown current
  • Power-good flag
  • External frequency synchronization
  • MODE selection pin
    • Forced PWM mode for constant frequency operation
    • Auto PFM mode for high efficiency at light load
  • Built-in control loop compensation, soft start, current limit, and UVLO
  • Miniature 3.8-mm × 3-mm × 1.6-mm package
  • Create a custom design using the LMZM23601 with the WEBENCH Power Designer
  • 4-V to 36-V wide operating input voltage
  • 1.2-V to 15-V adjustable, and 3.3-V or 5-V fixed output voltage options
  • 1-A Output current
  • Only input and output capacitors needed for 5-V and 3.3-V output designs
  • 27-mm2 Solution size with single-sided layout
  • 28-µA supply current at no load
  • 2-µA shutdown current
  • Power-good flag
  • External frequency synchronization
  • MODE selection pin
    • Forced PWM mode for constant frequency operation
    • Auto PFM mode for high efficiency at light load
  • Built-in control loop compensation, soft start, current limit, and UVLO
  • Miniature 3.8-mm × 3-mm × 1.6-mm package
  • Create a custom design using the LMZM23601 with the WEBENCH Power Designer

The LMZM23601 integrated-inductor power module is specifically designed for space-constrained industrial applications. The device is available in two fixed output voltage options of 5 V and 3.3 V, and an adjustable (ADJ) output voltage option supporting a 1.2-V to 15-V range. The LMZM23601 has an input voltage range of 4 V to 36 V and can deliver up to 1000-mA of output current. This power module is extremely easy to use, requiring only two external components for a 5-V or 3.3-V output design. All aspects of the LMZM23601 are optimized for performance driven and low EMI industrial applications with space-constrained needs. An open-drain, Power-Good output provides a true indication of the system status and negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes along with a no-load supply current of only 28 µA ensures high efficiency and superior transient response for the entire load-current range. For easy output current scaling the LMZM23601 is pin-to-pin compatible with the 500-mA output current capable LMZM23600.

The LMZM23601 integrated-inductor power module is specifically designed for space-constrained industrial applications. The device is available in two fixed output voltage options of 5 V and 3.3 V, and an adjustable (ADJ) output voltage option supporting a 1.2-V to 15-V range. The LMZM23601 has an input voltage range of 4 V to 36 V and can deliver up to 1000-mA of output current. This power module is extremely easy to use, requiring only two external components for a 5-V or 3.3-V output design. All aspects of the LMZM23601 are optimized for performance driven and low EMI industrial applications with space-constrained needs. An open-drain, Power-Good output provides a true indication of the system status and negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes along with a no-load supply current of only 28 µA ensures high efficiency and superior transient response for the entire load-current range. For easy output current scaling the LMZM23601 is pin-to-pin compatible with the 500-mA output current capable LMZM23600.

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Technical documentation

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Type Title Date
* Data sheet LMZM23601 36-V, 1-A Step-Down DC/DC Power Module in 3.8-mm × 3-mm Package datasheet (Rev. C) PDF | HTML 13 Mar 2023
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 26 Jul 2021
Application note Soldering Considerations for Power Modules (Rev. B) PDF | HTML 17 May 2021
Application note Practical Thermal Design With DC/DC Power Modules (Rev. A) 20 Nov 2019
Application note Accurate Thermal Calculations on the Back of a Napkin 03 Jun 2019
Technical article Advantages of using nonisolated DC/DC power buck modules in DAQ applications PDF | HTML 15 Jan 2019
Technical article Enhancing DAQ performance for grid protection, control and monitoring equipment us PDF | HTML 11 Dec 2018
Technical article How to use a voltage reference as a voltage regulator PDF | HTML 04 Dec 2018
Application note Inverting Application for the LMZM23601 and LMZM23600 (Rev. A) 19 Oct 2018
Application note EMI Mitigation Techniques Using the LMZM23601 09 Jun 2018
User guide User's Guide for the LMZM23601 and LMZM23600 (Rev. A) 27 Mar 2018
Technical article Should you power your industrial sensors with a linear or switching regulator? PDF | HTML 21 Feb 2018
Technical article Design a second-stage filter for sensitive applications PDF | HTML 18 Jan 2018
White paper Simplify low EMI design with power modules 20 Nov 2017

Design & development

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

Evaluation board

LMZM23601EVM — LMZM23601, 4-V to 36-V Input, 1-A Power Module Evaluation Board

The LMZM23601 device is a simple, and easy-to-use DC-DC converter module ideal for applications where board
space is limited and an efficient power conversion is needed. The LMZM23601 evaluation board is a fully assembled and tested platform to help evaluate the features and performance of the (...)
User guide: PDF
Not available on TI.com
Evaluation board

LMZM23601V3EVM — 36-V Maximum Input 3.3-V Output 1-A DC-DC Module Evaluation Board

The LMZM23601 device is a simple, and easy-to-use DC-DC converter module ideal for applications where board space is limited and an efficient power conversion is needed. The LMZM23601V3EVM evaluation board is a fully assembled and tested platform to help evaluate the features and performance of the (...)

User guide: PDF
Not available on TI.com
Evaluation board

LMZM23601V5EVM — 36-V Maximum Input 5-V Output 1-A DC-DC Module Evaluation Board

The LMZM23601 device is a simple, and easy-to-use DC-DC converter module ideal for applications where board space is limited and an efficient power conversion is needed. The LMZM23601V5EVM evaluation board is a fully assembled and tested platform to help evaluate the features and performance of the (...)

User guide: PDF
Not available on TI.com
Simulation model

LMZM23601 PSpice Non-Inverting and Inverting Transient Model (Rev. A)

SNVMBG3A.ZIP (190 KB) - PSpice Model
Simulation model

LMZM23601V3 PSpice Non-inverting and Inverting Transient Model

SNVMBJ2.ZIP (127 KB) - PSpice Model
Simulation model

LMZM23601V5 PSpice Non-Inverting and Inverting Transient Model (Rev. A)

SNVMBJ0A.ZIP (129 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

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This reference design showcases a cost-optimized and scalable ADC-based AC/DC binary input module (BIM) architecture with reinforced isolation. The 16 channels of a 10- or 12-bit SAR ADC are used for sensing multiple binary inputs. The op amps, in addition to keeping the cost per-channel low, (...)
Design guide: PDF
Schematic: PDF
Reference designs

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Schematic: PDF
Reference designs

TIDA-01027 — Low-noise power supply reference design maximizing performance in 12.8-GSPS data acquisition systems

This reference design demonstrates an efficient, low-noise five-rail power supply design for very high-speed Data Acquisition (DAQ) systems capable of > 12.8 GSPS. The power supply DC/DC converters are frequency-synchronized and phase-shifted in order to minimize input current ripple and (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010057 — Ultrasound smart probe power supply reference design

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Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010055 — Non-isolated power architecture with diagnostics reference design for protection relay modules

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
Schematic: PDF
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 (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01633 — Compact Programmable 4-20mA and +/-10V Analog Output Reference Design for AC/Servo Drives

This reference design realizes a small form factor, two channel configurable analog voltage and current output module for AC inverter and servo drives. The integrated industrial output driver: XTR305 offers a compact size when compared to using multiple opamps along with passive components. The (...)
Design guide: PDF
Schematic: PDF
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