TPS61170-Q1

ACTIVE

3-V to 18-V wide input range, 1.2-A boost converter in 2-mm x 2-mm QFN package, AEC-Q100 qualified

Product details

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Boost, Flyback, Forward, SEPIC Type Converter Vin (min) (V) 3 Vin (max) (V) 18 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1500 Features Enable, Light Load Efficiency, Nonsynchronous Vout (min) (V) 3 Vout (max) (V) 38 Iq (typ) (µA) 2300 Duty cycle (max) (%) 93 Switch current limit (typ) (A) 1.2
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Boost, Flyback, Forward, SEPIC Type Converter Vin (min) (V) 3 Vin (max) (V) 18 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1500 Features Enable, Light Load Efficiency, Nonsynchronous Vout (min) (V) 3 Vout (max) (V) 38 Iq (typ) (µA) 2300 Duty cycle (max) (%) 93 Switch current limit (typ) (A) 1.2
WSON (DRV) 6 4 mm² 2 x 2
  • Qualified for automotive applications
  • Functional Safety-Capable
  • 3-V to 18-V Input voltage range
  • High output voltage: up to 38 V
  • 1.2-A Integrated switch
  • 1.2-MHz Fixed switching frequency
  • 12 V at 300 mA and 24 V at 150 mA from 5-V Input (typical)
  • Up to 93% efficiency
  • On-the-fly output voltage reprogramming
  • Skip-switching cycle for output regulation at light load
  • Built-in soft start
  • 6-Pin, 2-mm × 2-mm SON package
  • Qualified for automotive applications
  • Functional Safety-Capable
  • 3-V to 18-V Input voltage range
  • High output voltage: up to 38 V
  • 1.2-A Integrated switch
  • 1.2-MHz Fixed switching frequency
  • 12 V at 300 mA and 24 V at 150 mA from 5-V Input (typical)
  • Up to 93% efficiency
  • On-the-fly output voltage reprogramming
  • Skip-switching cycle for output regulation at light load
  • Built-in soft start
  • 6-Pin, 2-mm × 2-mm SON package

The TPS61170-Q1 is a monolithic, high-voltage switching regulator with integrated 1.2-A, 40-V power MOSFET. The device can be configured in several standard switching-regulator topologies, including boost and SEPIC. The device has a wide input-voltage range to support applications with input voltage from multicell batteries or regulated 5-V, 12-V power rails.

The TPS61170-Q1 operates at a 1.2-MHz switching frequency, allowing the use of low-profile inductors and low-value ceramic input and output capacitors. External loop compensation components give the user flexibility to optimize loop compensation and transient response. The device has built-in protection features, such as pulse-by-pulse overcurrent limit, soft start, and thermal shutdown.

The FB pin regulates to a reference voltage of
1.229 V. The reference voltage can be lowered using a 1-wire digital interface (EasyScale™ protocol) through the CTRL pin. Alternatively, a pulse width-modulation (PWM) signal can be applied to the CTRL pin. The duty cycle of the signal reduces the feedback reference voltage proportionally.

The TPS61170-Q1 is available in a 6-pin 2-mm ×
2-mm SON package, allowing a compact power-supply solution.

The TPS61170-Q1 is a monolithic, high-voltage switching regulator with integrated 1.2-A, 40-V power MOSFET. The device can be configured in several standard switching-regulator topologies, including boost and SEPIC. The device has a wide input-voltage range to support applications with input voltage from multicell batteries or regulated 5-V, 12-V power rails.

The TPS61170-Q1 operates at a 1.2-MHz switching frequency, allowing the use of low-profile inductors and low-value ceramic input and output capacitors. External loop compensation components give the user flexibility to optimize loop compensation and transient response. The device has built-in protection features, such as pulse-by-pulse overcurrent limit, soft start, and thermal shutdown.

The FB pin regulates to a reference voltage of
1.229 V. The reference voltage can be lowered using a 1-wire digital interface (EasyScale™ protocol) through the CTRL pin. Alternatively, a pulse width-modulation (PWM) signal can be applied to the CTRL pin. The duty cycle of the signal reduces the feedback reference voltage proportionally.

The TPS61170-Q1 is available in a 6-pin 2-mm ×
2-mm SON package, allowing a compact power-supply solution.

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Technical documentation

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Type Title Date
* Data sheet TPS61170-Q1 1.2-A High-Voltage Boost Converter in 2-mm × 2-mm SON Package datasheet (Rev. B) PDF | HTML 10 Jun 2020
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Functional safety information TPS61170-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
EVM User's guide TPS61170EVM-280 User's Guide (Rev. C) 18 Sep 2009

Design & development

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

Evaluation board

TPS61170EVM-280 — TPS61170 12V Input, 24V Output, 0.34A Evaluation Module

The TPS61170EVM-280 facilitates evaluation of the TPS61170 High Voltage 1.2 A Boost Converter. The TPS61170 is monolithic high voltage switching regulator. It can be operated in several of the standard switching configurations, including boost and SEPIC. The 1.2 A, 40 V high (...)

User guide: PDF
Not available on TI.com
Evaluation board

TPS61170EVM-316 — TPS61170EVM-316 Evaluation Module

The TPS61170EVM-316 facilitates evaluation of the TPS61170 1.2A High Voltage Boost Converter in a SEPIC configuration.
User guide: PDF
Not available on TI.com
Support software

TPS6116XEVM-SW — Software for TPS6116x Evaluation Modules

The TPS6116xEVM-SW software provides a software interface for the TPS6116x/70 EVM boards. Use this software to change the TPS6116x IC register via the USB Interface Adapter.
Simulation model

TPS61170 TINA-TI Transient Reference Design

SLVM230.TSC (416 KB) - TINA-TI Reference Design
Simulation model

TPS61170 TINA-TI Transient Spice Model

SLVM231.ZIP (55 KB) - TINA-TI Spice Model
Simulation model

TPS61170 Unencrypted PSPICE Transient Model Package (Rev. A)

SLVM100A.ZIP (33 KB) - PSpice Model
Reference designs

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This reference design provides a broadly-applicable automotive power design for a variety of ADAS processors, focusing on front and rear camera applications. The design supports an input range of 4 V to 48 V to supply common processor power rails through discrete components.  This adds to the (...)
Design guide: PDF
Schematic: PDF
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This reference design details the design of a control board for the DLP5531-Q1 DMD. The DLP5531-Q1 DMD is a spatial light modulator with over 1.3 million pixels that can steer light to create digitally controlled illumination distributions. The design shows a simplified power architecture with a (...)
Design guide: PDF
Schematic: PDF
Reference designs

PMP30046 — Enterprise SSD Backup Power Reference Design

The PMP30046 reference design shows a system solution for an enterprise SSD backup power supply. The input voltage of the hotswap controller can be either 5V or 12V. A buck stage converts this input voltage to 3.3V with a maximum load current of 2.5A. The 3.3V are boosted to 28V for charging a (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00322 — Automotive Ultrasonic Fluid Level/Quality Measurement Reference Design

TI reference design TIDA-00322 is an automotive liquid level and fluid identification measurement system. It is based on the dual-channel TDC1000-Q1 ultrasonic AFE and the real-time microcontroller C2000. This reference design can also be used with the TDC1000 for industrial/consumer applications. (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
WSON (DRV) 6 Ultra Librarian

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