Home Power management DC/DC switching regulators Buck-boost & inverting regulators Buck-boost & inverting modules (integrated inductor)

TPS84259

ACTIVE

4.5V to 40V, 2A up to 15W Negative-Output Integrated Power Solution

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPSM63603 ACTIVE High-density, 3-V to 36-V input, 1-V to 16-V output, 3-A power module Smaller footprint, lower EMI and configurable in inverting buck-boost.

Product details

Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) -3 Vout (max) (V) -17 Soft start Fixed Features Over Current Protection Operating temperature range (°C) -40 to 85 Regulated outputs (#) 1 Topology Buck-Boost, Inverting Rating Catalog Type Converter
Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) -3 Vout (max) (V) -17 Soft start Fixed Features Over Current Protection Operating temperature range (°C) -40 to 85 Regulated outputs (#) 1 Topology Buck-Boost, Inverting Rating Catalog Type Converter
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
  • Overtemperature Protection
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 14°C/W
  • Meets EN55022 Class B Emissions
  • For Design Help visit http://www.ti.com/TPS84259
  • 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
  • Overtemperature Protection
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 14°C/W
  • Meets EN55022 Class B Emissions
  • For Design Help visit http://www.ti.com/TPS84259

The TPS84259 is an easy-to-use negative output voltage power module that combines a 15-W DC/DC converter with an 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. Its compact design also contains fewer components and possesses excellent power dissipation capability. The TPS84259 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 TPS84259 is an easy-to-use negative output voltage power module that combines a 15-W DC/DC converter with an 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. Its compact design also contains fewer components and possesses excellent power dissipation capability. The TPS84259 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.

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 9
Type Title Date
* Data sheet TPS84259 4.5-V to 40-V Input, 15-W, Negative Output, Integrated Power Solution datasheet (Rev. D) 11 Apr 2018
Application note Soldering Requirements for BQFN Packages (Rev. C) 05 Mar 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23 Apr 2013
Application note Reducing Output Ripple and Noise with the TPS84259 06 Nov 2012
More literature TPS84k Integrated Power Modules Info Card (Rev. A) 28 Aug 2012
EVM User's guide Using the TPS84259EVM-001 21 Jun 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

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

Simulation model

TPS84259 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM692A.ZIP (33 KB) - PSpice Model
Calculation tool

SLVC443 TPS84259 Calculator ver 1.0.2

Supported products & hardware

Supported products & hardware

Products
Buck-boost & inverting modules (integrated inductor)
TPS84259 4.5V to 40V, 2A up to 15W Negative-Output Integrated Power Solution
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

PMP8372 — 40V Dual 1A Power Module w/Low Noise LDOs Split-Rail (±5V) Output Voltages Reference Design

The PMP8372 design is optimized for small size and uses the TPS84250 step-down power module on the top- side with the TPS84259 negative output power module on the bottom-side to implement both positive and negative output voltages from a 12V/24V source. The output voltages can be adjusted from (...)
Test report: PDF
Schematic: PDF
Package Pins Download
B1QFN (RKG) 41 View options

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

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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