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.
Technical documentation
| 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.
TPS84259 Unencrypted PSpice Transient Model Package (Rev. A)
PMP8372 — 40V Dual 1A Power Module w/Low Noise LDOs Split-Rail (±5V) Output Voltages Reference Design
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| B1QFN (RKG) | 41 | Ultra Librarian |
Ordering & quality
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Support & training
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