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


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 125 Rating Automotive open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

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


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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
* Datasheet TPS61087-Q1 650-kHz or 1.2-MHz, 18.5-V Step-Up DC-DC Converter With 3.2-A Switch datasheet (Rev. C) Jun. 10, 2020
Functional safety information TPS61087-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution May 22, 2020
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011

Design & development

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Hardware development

TPS61087 Evaluation Module
document-generic User guide
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.
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

SLIM131B.ZIP (49 KB) - PSpice Model
SLVM423.TSC (196 KB) - TINA-TI Reference Design
SLVM424.ZIP (26 KB) - TINA-TI Spice Model
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PSPICE-FOR-TI — 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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CAD/CAE symbols

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Ordering & quality

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