TPS61087

ACTIVE

18.5V, 3.2A, 650kHz / 1.2MHz Step-Up DC-DC Converter with Forced PWM Mode

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Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 6 Vout (Min) (V) 3 Vout (Max) (V) 18.5 Switch current limit (Typ) (A) 4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 900 Switching frequency (Max) (kHz) 1500 Iq (Typ) (mA) 0.075 Features Enable, Power Good Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

VSON (DRC) 10 9 mm² 3.00 x 3.00 VSON (DRC) 10 9 mm² 3 x 3 WSON (DSC) 10 9 mm² 3 x 3 open-in-new Find other Boost converters (integrated switch)

Features

  • 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

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Description

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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TPS61088 ACTIVE 10-A Fully-Integrated Synchronous Boost Converter For applications requiring wider Vin range and/or higher output current.

Technical documentation

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Type Title Date
* Datasheet TPS61087 650-kHz,1.2-MHz, 18.5-V Step-Up DC-DC Converter With 3.2-A Switch datasheet (Rev. E) May 24, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes Negative to Positive Conversion Made Simple with TPS61089 Boost Converter Oct. 11, 2018
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application notes Charging Supercapacitor Banks from USB Type C Port With Boost Converter Jul. 17, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guides PMP15044 Test Results Apr. 13, 2018
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application notes Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Application notes AN-2020 Thermal Design By Insight, Not Hindsight (Rev. C) Apr. 23, 2013
Application notes Low Cost 1W Isolated Power Supply Solution with TPS61085 Jun. 26, 2012
Application notes Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application notes Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
Application notes Discrete Charge Pump Design (Rev. A) Jul. 16, 2010
User guides TPS61087EVM (Rev. A) Jan. 20, 2009
Application notes 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.

Hardware development

EVALUATION BOARDS Download
TPS61087 Evaluation Module
TPS61087EVM-317
document-generic User guide
$49.00
Description
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.
Features
2.5 V to 6.0 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

Design tools & simulation

SIMULATION MODELS Download
SLIM131B.ZIP (49 KB) - PSpice Model
SIMULATION MODELS Download
SLVM423.TSC (196 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVM424.ZIP (26 KB) - TINA-TI Spice Model

Reference designs

REFERENCE DESIGNS Download
Natural Input Current Limit Reference Design for Super-Cap Charge Circuits
PMP15044 The TI design PMP15044 uses the natural-input current-limit characteristic 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 the TPS61087 device. Considering the (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Boost 18V @ 400mA
PMP4671 — tiny 7W boost converter w/ TPS61087, 18V out of 5V
Design files

CAD/CAE symbols

Package Pins Download
VSON (DRC) 10 View options
WSON (DSC) 10 View options

Ordering & quality

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