TPS61029-Q1

ACTIVE

Automotive 0.9V to 5.5V Input Range, 1.8A Boost Converter

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Product details

Parameters

Vin (Min) (V) 0.9 Vin (Max) (V) 5.5 Vout (Min) (V) 1.8 Vout (Max) (V) 5.5 Switch current limit (Typ) (A) 1.8 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 480 Switching frequency (Max) (kHz) 600 Iq (Typ) (mA) 0.025 Features Enable, Light Load Efficiency, Load Disconnect, Power Good, Synchronous Rectification Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 125 Type Converter Rating Automotive open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

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

Features

  • Qualified for Automotive Applications
  • 96% Efficient Synchronous Boost Converter
  • Output Voltage Remains Regulated When Input
    Voltage Exceeds Nominal Output Voltage
  • Device Quiescent Current: 25 µA (Typ)
  • Input Voltage Range: 0.9 V to 6.5 V
  • Fixed and Adjustable Output Voltage Options
    Up to 5.5 V
  • Power Save Mode for Improved Efficiency at
    Low Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Anti-ringing
    Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection
  • Small 3-mm × 3-mm QFN-10 Package
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Description

The TPS6102x devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 200 mA while using a single-cell alkaline, and discharge it down to 0.9 V. It can also be used for generating 5 V at 500 mA from a 3.3-V rail or a Li-Ion battery. The boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents, the converter enters the Power Save Mode to maintain a high efficiency over a wide load current range. The Power Save Mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum peak current in the boost switch is limited to a value of 800 mA, 1500 mA or 1800 mA depending on the device version.

The TPS6102x devices keep the output voltage regulated even when the input voltage exceeds the nominal output voltage. The output voltage can be programmed by an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode. The device is packaged in a 10-pin VSON PowerPAD™ package.

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Technical documentation

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Type Title Date
* Datasheet TPS6102x 96% Efficient Synchronous Boost Converters datasheet (Rev. A) Dec. 08, 2014
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application notes Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Application notes Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
User guides TPS61020EVM: High-Efficiency Synchronous Boost Converters Nov. 17, 2003

Design & development

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

Reference designs

REFERENCE DESIGNS Download
TPS61029 Automotive Booster Reference Design
PMP30003 — This automotive boost converter provides 5 V at 350 mA from an input voltage of 3.3 V.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VSON (DPN) 10 View options
VSON (DRC) 10 View options

Ordering & quality

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Videos

Power Tips: Layout for a Boost Power Stage

This video shows a simplified schematic and PCB layout for a boost converter

Posted: 21-Jan-2016
Duration: 04:31

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