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LMZ34002

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4.5-V to 40-V, 2-A Negative output power module

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Data sheet

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TPSM63603 ACTIVE High-density, 3-V to 36-V input, 1-V to 16-V output, 3-A power module Configurable in inverting buck-boost.

LMZ34002

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Inverting Type Module Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) -17 Vout (max) (V) -3 Features EMI Tested, Enable, Negative Output
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Inverting Type Module Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) -17 Vout (max) (V) -3 Features EMI Tested, Enable, Negative Output
B1QFN (RKG) 41 99 mm² 11 x 9
  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • Wide Input Voltage Range from 4.5 V to 40 V
  • Output Adjustable from  –3 V to –17 V
  • Supplies up to 2-A of Output Current
  • 45-V Surge Capability
  • Synchronizes to an External Clock
  • Adjustable Slow-Start
  • Programmable Undervoltage Lockout (UVLO)
  • Output Overcurrent Protection
  • Over Temperature Protection
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 14°C/W
  • Meets EN55022 Class B Emissions
    - Integrated Shielded Inductor
  • For Design Help visit http://www.ti.com/product/lmz34002
  • Create a Custom Design Using the LMZ34002 With the WEBENCH® Power Designer
  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • Wide Input Voltage Range from 4.5 V to 40 V
  • Output Adjustable from  –3 V to –17 V
  • Supplies up to 2-A of Output Current
  • 45-V Surge Capability
  • Synchronizes to an External Clock
  • Adjustable Slow-Start
  • Programmable Undervoltage Lockout (UVLO)
  • Output Overcurrent Protection
  • Over Temperature Protection
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 14°C/W
  • Meets EN55022 Class B Emissions
    - Integrated Shielded Inductor
  • For Design Help visit http://www.ti.com/product/lmz34002
  • Create a Custom Design Using the LMZ34002 With the WEBENCH® Power Designer

The LMZ34002 SIMPLE SWITCHER® power module is an easy-to-use, negative output voltage power module that combines a 15-W DC-DC converter with a shielded inductor, and passives into a low profile, QFN package. This total power solution allows as few as five external components and eliminates the loop compensation and magnetics part selection process.

The 9×11×2.8 mm QFN package is easy to solder onto a printed circuit board and allows a compact design with fewer components and excellent power dissipation capability. The LMZ34002 offers the flexibility and the feature-set of a discrete design and is ideal for powering a wide range of ICs and analog circuits requiring a negative output voltage. Advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.

The LMZ34002 SIMPLE SWITCHER® power module is an easy-to-use, negative output voltage power module that combines a 15-W DC-DC converter with a shielded inductor, and passives into a low profile, QFN package. This total power solution allows as few as five external components and eliminates the loop compensation and magnetics part selection process.

The 9×11×2.8 mm QFN package is easy to solder onto a printed circuit board and allows a compact design with fewer components and excellent power dissipation capability. The LMZ34002 offers the flexibility and the feature-set of a discrete design and is ideal for powering a wide range of ICs and analog circuits requiring a negative output voltage. Advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.
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Technical documentation

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Type Title Date
* Data sheet LMZ34002 15-W Negative Output Power Module With 4.5-V to 40-V Input datasheet (Rev. C) 11 Apr 2018
Technical article Powering medical imaging applications with DC/DC buck converters PDF | HTML 24 Nov 2020
Application note Soldering Requirements for BQFN Packages (Rev. C) 05 Mar 2020
White paper Simplify low EMI design with power modules 20 Nov 2017
Application note Working With QFN Power Modules (Rev. A) 08 Jun 2017
Application note Reducing Output Ripple and Noise using the LMZ34002 10 Sep 2013
EVM User's guide Using the LMZ34002 02 Jul 2013

Design & development

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

Evaluation board

LMZ34002EVM-001 — LMZ34002 4.5V to 40V, 2A Negative Output Power Module Evaluation Board

The Texas Instruments LMZ34002EVM-001 evaluation module (EVM) makes it easy for designers to evaluate the performance of the LMZ34002 2A, Negative Output Power Module. The EVM operates with an input voltage range of 4.5V to 40V. The output voltage can be selected from four preset values using a (...)
User guide: PDF
Not available on TI.com
Simulation model

LMZ34002 PSpice Transient Model

SNVM573.ZIP (99 KB) - PSpice Model
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Simulation model

LMZ34002 Unencrypted PSpice Transient Model

SNVM977.ZIP (5 KB) - PSpice Model
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Reference designs

TIDA-01352 — 400-W Continuous, Scalable, ±2.5- to ±150-V, Programmable Ultrasound Power Supply Reference Design

The TIDA-01352 enables modular and efficient power scaling capability by providing a solution for digitally programmable power supply for powering ultrasound transmit circuit. The design uses push-pull topology to generate high-voltage (HV) and low- (LV) or MID- voltage power supplies. The HV (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
B1QFN (RKG) 41 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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