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TPS61087

ACTIVE

18.5-V, 3.2-A, 650-kHz / 1.2-MHz step-up DC/DC converter

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Data sheet

TPS61087

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.5 Vin (max) (V) 6 Switching frequency (min) (kHz) 900 Switching frequency (max) (kHz) 1500 Features Enable, Nonsynchronous, Power good Vout (min) (V) 3 Vout (max) (V) 18.5 Iq (typ) (µA) 75 Duty cycle (max) (%) 90 Switch current limit (typ) (A) 4
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.5 Vin (max) (V) 6 Switching frequency (min) (kHz) 900 Switching frequency (max) (kHz) 1500 Features Enable, Nonsynchronous, Power good Vout (min) (V) 3 Vout (max) (V) 18.5 Iq (typ) (µA) 75 Duty cycle (max) (%) 90 Switch current limit (typ) (A) 4
VSON (DRC) 10 9 mm² 3 x 3 WSON (DSC) 10 9 mm² 3 x 3
  • 2.5-V to 6-V Input Voltage Range
  • 18.5-V Boost Converter With 3.2-A Switch Current
  • 650-kHz, 1.2-MHz Selectable Switching Frequency
  • Adjustable Soft-Start
  • Thermal Shutdown
  • Undervoltage Lockout
  • 10-Pin QFN and Thin QFN Packages
  • 2.5-V to 6-V Input Voltage Range
  • 18.5-V Boost Converter With 3.2-A Switch Current
  • 650-kHz, 1.2-MHz Selectable Switching Frequency
  • Adjustable Soft-Start
  • Thermal Shutdown
  • Undervoltage Lockout
  • 10-Pin QFN and Thin QFN Packages

The TPS61087 is a high-frequency, high-efficiency DC-DC converter with an integrated 3.2-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 optimization of the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at startup.

The TPS61087 is a high-frequency, high-efficiency DC-DC converter with an integrated 3.2-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 optimization of the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at startup.
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Technical documentation

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Type Title Date
* Data sheet TPS61087 650-kHz,1.2-MHz, 18.5-V Step-Up DC-DC Converter With 3.2-A Switch datasheet (Rev. E) PDF | HTML 24 May 2019
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Application note 스트컨버터의 전력계 기본 계산 (Rev. D) PDF | HTML 21 Nov 2022
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 28 Oct 2022
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Negative to Positive Conversion Made Simple with TPS61089 Boost Converter 11 Oct 2018
Application note Charging Supercapacitor Banks from USB Type C Port With Boost Converter 17 Jul 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Test report PMP15044 Test Results 13 Apr 2018
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Application note AN-2020 Thermal Design By Insight, Not Hindsight (Rev. C) 23 Apr 2013
Application note Low Cost 1W Isolated Power Supply Solution with TPS61085 26 Jun 2012
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
Application note Discrete Charge Pump Design (Rev. A) 16 Jul 2010
EVM User's guide TPS61087EVM (Rev. A) 20 Jan 2009
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

Design & development

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

Evaluation board

TPS61087EVM-317 — TPS61087 Evaluation Module

The TPS61087EVM-317 facilitates evaluation of the TPS61087 high frequency, high efficiency DC/DC converter. The evaluation module accepts an input voltage of 2.5 V to 6 V and generates an output voltage of 15 V with a maximum switch current of 3.2 A minimum.
User guide: PDF
Not available on TI.com
Simulation model

TPS61087 TINA-TI Transient Reference Design

SLVM423.TSC (196 KB) - TINA-TI Reference Design
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Simulation model

TPS61087 TINA-TI Transient Spice Model

SLVM424.ZIP (26 KB) - TINA-TI Spice Model
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Simulation model

TPS61087 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM131B.ZIP (49 KB) - PSpice Model
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Reference designs

PMP15044 — Natural Input Current Limit Reference Design for Super-Cap Charge Circuits

This reference design uses natural-input current-limit characteristics of the flyback topology. During start-up, even though the initial output voltage of the super CAP is zero, the primary winding current is always limited by the peak-switch current limit of TPS61087. Considering the duty cycle (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VSON (DRC) 10 Ultra Librarian
WSON (DSC) 10 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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