Home Power management DC/DC power modules Power modules (integrated inductor)

LMZ21701

ACTIVE

3V to 17V, 1A Step-Down DC/DC Power Module in 3.5mm × 3.5mm Package

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPSM82903 ACTIVE 3-V to 17-V, 3-A, high-efficiency, low-IQ synchronous buck converter module with integrated inductor Higher efficiency with higher current, lower IQ, output discharge, and tracking in a smaller package.

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 1 Vin (min) (V) 3 Vin (max) (V) 17 Vout (min) (V) 0.9 Vout (max) (V) 6 Switching frequency (min) (kHz) 1250 Switching frequency (max) (kHz) 2500 Features EMI Tested, Enable, Light Load Efficiency, Power good Control mode Constant on-time (COT), DCS-Control Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 1 Vin (min) (V) 3 Vin (max) (V) 17 Vout (min) (V) 0.9 Vout (max) (V) 6 Switching frequency (min) (kHz) 1250 Switching frequency (max) (kHz) 2500 Features EMI Tested, Enable, Light Load Efficiency, Power good Control mode Constant on-time (COT), DCS-Control Duty cycle (max) (%) 100
USIP (SIL) 8 See data sheet
  • Integrated Inductor
  • Miniature 3.5 mm × 3.5 mm × 1.75 mm Package
  • 35-mm² Solution Size (Single Sided)
  • -40°C to 125°C Junction Temperature Range
  • Adjustable Output Voltage
  • Integrated Compensation
  • Adjustable Soft-Start Function
  • Starts into Prebiased Loads
  • Power Good and Enable Pins
  • Seamless Transition to Power-Save Mode
  • Up to 1000 mA Output Current
  • Input Voltage Range 3 V to 17 V
  • Output Voltage Range 0.9 V to 6 V
  • Efficiency up to 95 %
  • 1.5-µA Shutdown Current
  • 17-µA Quiescent Current
  • Create a Custom Design Using the LMZ21701 With WEBENCH® Power Designer
  • Integrated Inductor
  • Miniature 3.5 mm × 3.5 mm × 1.75 mm Package
  • 35-mm² Solution Size (Single Sided)
  • -40°C to 125°C Junction Temperature Range
  • Adjustable Output Voltage
  • Integrated Compensation
  • Adjustable Soft-Start Function
  • Starts into Prebiased Loads
  • Power Good and Enable Pins
  • Seamless Transition to Power-Save Mode
  • Up to 1000 mA Output Current
  • Input Voltage Range 3 V to 17 V
  • Output Voltage Range 0.9 V to 6 V
  • Efficiency up to 95 %
  • 1.5-µA Shutdown Current
  • 17-µA Quiescent Current
  • Create a Custom Design Using the LMZ21701 With WEBENCH® Power Designer

The LMZ21701 nano module is an easy-to-use step-down DC/DC solution capable of driving up to 1000-mA load in space-constrained applications. Only an input capacitor, an output capacitor, a soft-start capacitor, and two resistors are required for basic operation.

The LMZ21701 nano module is an easy-to-use step-down DC/DC solution capable of driving up to 1000-mA load in space-constrained applications. Only an input capacitor, an output capacitor, a soft-start capacitor, and two resistors are required for basic operation.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Type Title Date
* Data sheet LMZ21701 1-A Nano Module With 17-V Maximum Input Voltage datasheet (Rev. E) PDF | HTML 29 Aug 2018
Application note Soldering Considerations for Power Modules (Rev. C) PDF | HTML 14 Mar 2024
User guide LMZ21700 and LMZ21701 Power Module Evaluation Module User's Guide (Rev. B) PDF | HTML 10 Jan 2022
Application note Practical Thermal Design With DC/DC Power Modules (Rev. A) 20 Nov 2019
White paper Benefits and trade-offs of various power-module package options 02 Aug 2017
User guide LMZ21701/LMZ21700 SIMPLE SWITCHER Nano Module Eval Board 05 Oct 2012
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

Please view the Design & development section on a desktop.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos