TPS61086

Name: TPS61086
Brand: TI
SKU: TPS61086
Price: 0.726 USD

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

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Data sheet

document-pdfAcrobat TPS61086 18.5-V PFM – PWM Step-Up DC – DC Converter With 2.0-A Switch datasheet (Rev. B) PDF | HTML

TPS61086

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Data sheet

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Product details

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Boost

Type

Converter

Vin (min) (V)

2.3

Vin (max) (V)

6

Switching frequency (min) (kHz)

900

Switching frequency (max) (kHz)

1500

Features

Enable, Light Load Efficiency, Nonsynchronous, Power good

Vout (min) (V)

2.8

Vout (max) (V)

18.5

Iq (typ) (µA)

70

Duty cycle (max) (%)

90

Switch current limit (typ) (A)

2.6

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Boost

Type

Converter

Vin (min) (V)

2.3

Vin (max) (V)

6

Switching frequency (min) (kHz)

900

Switching frequency (max) (kHz)

1500

Features

Enable, Light Load Efficiency, Nonsynchronous, Power good

Vout (min) (V)

2.8

Vout (max) (V)

18.5

Iq (typ) (µA)

70

Duty cycle (max) (%)

90

Switch current limit (typ) (A)

2.6

VSON (DRC)

10

9 mm² 3 x 3

2.3-V to 6.0-V Input Voltage Range
18.5-V Boost Converter With 2.0-A Switch Current
1.2-MHz Switching Frequency
Power Save Mode for Improved Efficiency at Low-
Output Power or Forced PWM
Adjustable Soft-Start
Thermal Shutdown
Undervoltage Lockout
10-Pin VSON Package

2.3-V to 6.0-V Input Voltage Range
18.5-V Boost Converter With 2.0-A Switch Current
1.2-MHz Switching Frequency
Power Save Mode for Improved Efficiency at Low-
Output Power or Forced PWM
Adjustable Soft-Start
Thermal Shutdown
Undervoltage Lockout
10-Pin VSON Package

The TPS61086 device is a high-frequency, high-efficiency DC-to-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 implemented boost converter is based on a fixed frequency of 1.2-MHz, pulse-width-modulation (PWM) controller that allows the use of small external inductors and capacitors and provides fast transient response.

At light-load, the device can operate in Power Save Mode with pulse-frequency-modulation (PFM) to improve the efficiency while keeping a low-output voltage ripple. For very noise-sensitive applications, the device can be forced to PWM Mode operation over the entire load range by pulling the MODE pin high. 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 TPS61086 device is a high-frequency, high-efficiency DC-to-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 implemented boost converter is based on a fixed frequency of 1.2-MHz, pulse-width-modulation (PWM) controller that allows the use of small external inductors and capacitors and provides fast transient response.

At light-load, the device can operate in Power Save Mode with pulse-frequency-modulation (PFM) to improve the efficiency while keeping a low-output voltage ripple. For very noise-sensitive applications, the device can be forced to PWM Mode operation over the entire load range by pulling the MODE pin high. 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	TPS61086 18.5-V PFM – PWM Step-Up DC – DC Converter With 2.0-A Switch datasheet (Rev. B)	PDF \| HTML	16 Jul 2015
	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	Using External Bias to Broaden Input Voltage Range of Boost Converters	PDF \| HTML	08 Nov 2021
	Application note	Negative Input to Negative Output Step-Up Converter Design Using TPS61086	PDF \| HTML	23 Jul 2021
	Application note	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)		11 Dec 2018
	Application note	Charging Supercapacitor Banks from USB Type C Port With Boost Converter		17 Jul 2018
	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
	User guide	TPS61086EVM-526		05 Oct 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

TPS61086EVM-526 — TPS61086EVM-526 Evaluation Module

The TPS61086EVM-526 evaluation module is a fully assembled and tested circuit for evaluating the TPS61086 step-up DC/DC converter. The EVM operates from a 2.3V to 6V input voltage. It generates an output voltage of 12V with a switch current of 2A minimum.

User guide: PDF