Home Power management DC/DC switching regulators DC/DC converters
Home
Power management
DC/DC switching regulators
DC/DC converters

TPS61085

ACTIVE

18.5-V, 2-A, 650-kHz / 1.2-MHz step-up DC/DC converter

Order now
Data sheet

TPS61085

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Boost Vin (max) (V) 6 Vin (min) (V) 2.3 Vout (max) (V) 18.5 Vout (min) (V) 2.8 Switch current limit (typ) (A) 2.6 Features Enable, Nonsynchronous Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00007 Duty cycle (max) (%) 90
Rating Catalog Topology Boost Vin (max) (V) 6 Vin (min) (V) 2.3 Vout (max) (V) 18.5 Vout (min) (V) 2.8 Switch current limit (typ) (A) 2.6 Features Enable, Nonsynchronous Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00007 Duty cycle (max) (%) 90
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) TSSOP (PW) 8 19.2 mm² (3 mm × 6.4 mm)
  • 2.3 V to 6 V Input Voltage Range
  • 18.5-V Boost Converter With 2.0-A Switch Current
  • 650-kHz/1.2-MHz Selectable Switching Frequency
  • Adjustable Soft-Start
  • Thermal Shutdown
  • Undervoltage Lockout
  • 8-Pin VSSOP Package
  • 8-Pin TSSOP Package
  • 2.3 V to 6 V Input Voltage Range
  • 18.5-V Boost Converter With 2.0-A Switch Current
  • 650-kHz/1.2-MHz Selectable Switching Frequency
  • Adjustable Soft-Start
  • Thermal Shutdown
  • Undervoltage Lockout
  • 8-Pin VSSOP Package
  • 8-Pin TSSOP Package

The TPS61085 is a high frequency, high efficiency DC-DC converter with an integrated 2.0-A, 0.13-Ω power switch capable of providing an output voltage up to 18.5 V. The selectable frequency of 650 kHz or 1.2 MHz allows the use of small external inductors and capacitors and provides fast transient response. The external compensation allows optimizing the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at startup.

The TPS61085 is a high frequency, high efficiency DC-DC converter with an integrated 2.0-A, 0.13-Ω power switch capable of providing an output voltage up to 18.5 V. The selectable frequency of 650 kHz or 1.2 MHz allows the use of small external inductors and capacitors and provides fast transient response. The external compensation allows optimizing the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at startup.
filter Find other DC/DC converters
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device.
TPS61376 ACTIVE 25-V, 4.5-A, boost converter with 2.5% accuracy input average current limit & true disconnection TPS61376 has adjustable input current limited and true disconnection feature

Technical documentation

No results found. Please clear your search and try again.
View all 14
Top documentation Type Title Format options Date
* Data sheet TPS61085 650-kHz,1.2-MHz, 18.5-V Step-Up DC-DC Converter datasheet (Rev. B) PDF | HTML Dec 15, 2014
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML Oct 28, 2022
Application note Using External Bias to Broaden Input Voltage Range of Boost Converters PDF | HTML Nov 8, 2021
Application note Design of the Adjustable Vout Boost Circuit Dec 6, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec 11, 2018
Application note Charging Supercapacitor Banks from USB Type C Port With Boost Converter Jul 17, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun 15, 2017
Application note AN-2020 Thermal Design By Insight, Not Hindsight (Rev. C) Apr 23, 2013
Application note Low Cost 1W Isolated Power Supply Solution with TPS61085 Jun 26, 2012
Analog design Journal Design considerations for a resistive feedback divider in a DC/DC converter Apr 26, 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan 13, 2012
Analog design Journal IQ: What it is, what it isn’t, and how to use it Jun 17, 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter Sep 15, 2006

Design & development

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

Evaluation board

TPS61085EVM-355 — TPS61085 Evaluation Module

The TPS61085EVM-355 facilitates evaluation of the TPS61085 650kHz/1.2MHz, 18.5V step-up DC-DC converter. Supplied from an 2.3V to 6V input voltage, the EVM generates an output voltage of 12V with a maximum switch current of 2.0A minimum.
User guide: PDF
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Simulation model

TPS61085 TINA-TI Transient Reference Design

SLVM553.TSC (546 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

TPS61085 TINA-TI Transient Spice Model

SLVM554.ZIP (26 KB) - TINA-TI Spice model
Supported products & hardware
Simulation model

TPS61085 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM133B.ZIP (50 KB) - PSpice model
Supported products & hardware
Reference design

TIDEP-0075 — Industrial Communications Gateway PROFINET IRT to PROFIBUS Master Reference Design

PROFINET is becoming the leading industrial Ethernet protocol in automation due to its high-speed, deterministic communications and enterprise connectivity. However, as the world’s most popular fieldbus, PROFIBUS’s importance and usage will continue for many years due to legacy (...)
Supported products & hardware
Reference design

TIDEP0078 — OPC UA Data Access Server for AM572x Reference Design

OPC UA is an industrial machine-to-machine protocol designed to allow interoperability and communication between all machines connected under Industry 4.0. This reference design demonstrates use of the Matrikon OPC™ OPC UA server development kit (SDK) to allow communications using an OPC UA (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VSSOP (DGK) 8 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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

View all forum topics

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