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TPS61087-Q1

ACTIVE

18.5-V, 3.2-A, 650-kHz, 1.2-MHz step-up DC/DC converter with forced PWM mode, AEC-Q100 qualified

Product details

Topology Boost Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 3 Vout (max) (V) 18.5 Switch current limit (typ) (A) 4 Type Converter Regulated outputs (#) 1 Switching frequency (min) (kHz) 900 Switching frequency (max) (kHz) 1500 Iq (typ) (mA) 0.075 Features Enable, Nonsynchronous, Power good TI functional safety category Functional Safety-Capable Duty cycle (max) (%) 90 Operating temperature range (°C) -40 to 125 Rating Automotive Thermal resistance θJA (°C/W) 57
Topology Boost Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 3 Vout (max) (V) 18.5 Switch current limit (typ) (A) 4 Type Converter Regulated outputs (#) 1 Switching frequency (min) (kHz) 900 Switching frequency (max) (kHz) 1500 Iq (typ) (mA) 0.075 Features Enable, Nonsynchronous, Power good TI functional safety category Functional Safety-Capable Duty cycle (max) (%) 90 Operating temperature range (°C) -40 to 125 Rating Automotive Thermal resistance θJA (°C/W) 57
VSON (DRC) 10 9 mm² 3 x 3

The TPS61087-Q1 is a high-frequency, high-efficiency DC-to-DC converter with an integrated 3.2‑A, 0.13-Ω power switch that is 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 start-up.

The TPS61087-Q1 is a high-frequency, high-efficiency DC-to-DC converter with an integrated 3.2‑A, 0.13-Ω power switch that is 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 start-up.

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Technical documentation

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Type Title Date
* Data sheet TPS61087-Q1 650-kHz or 1.2-MHz, 18.5-V Step-Up DC-DC Converter With 3.2-A Switch datasheet (Rev. C) PDF | HTML 10 Jun 2020
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Functional safety information TPS61087-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution 22 May 2020
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011

Design & development

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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
Simulation model

TPS61087 TINA-TI Transient Spice Model

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

TPS61087 Unencrypted PSpice Transient Model Package (Rev. B)

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