TPS61020

ACTIVE

Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10

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Product details

Parameters

Vin (Min) (V) 0.9 Vin (Max) (V) 6.5 Vout (Min) (V) 1.8 Vout (Max) (V) 5.5 Switch current limit (Typ) (A) 1.5 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 480 Switching frequency (Max) (kHz) 720 Iq (Typ) (mA) 0.025 Features Synchronous Rectification Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

VSON (DRC) 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

  • 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
  • Overtemperature Protection
  • Small 3-mm × 3-mm VSON-10 Package
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Description

The TPS6102x family of 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 battery, and discharge it down to 0.9 V. The device 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 version of the device.

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 measuring 3 mm x 3 mm (DRC).

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Technical documentation

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Type Title Date
* Datasheet TPS6102x 96% Efficient Synchronous Boost Converter datasheet (Rev. G) Dec. 24, 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
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application notes Calculating and Measuring the No Load Input Current of the Boost Converter Sep. 23, 2016
Application notes Five Steps to a Good PCB Layout of the Boost Converter May 03, 2016
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
More literature Исходные проекты ll May 13, 2011
Application notes TPS61020 Boost Converter Start-Up and Precharge Jan. 28, 2010
Application notes Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006
Application notes Factors That Determine Light Load PSM Switch Freq for TPS6102x Boost Converters Apr. 21, 2006
Application notes TPS6102x Boost Converter Down Conversion Mode Dec. 16, 2004
User guides TPS61020EVM: High-Efficiency Synchronous Boost Converters Nov. 17, 2003
White papers A Step-Down Conversion Concept for a PWM-Mode Boost Converter Aug. 26, 2003

Design & development

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Hardware development

EVALUATION BOARDS Download
TPS61020 Evaluation Module
TPS61020EVM-025
document-generic User guide
$49.00
Description

The TPS61020EVM-025 is an evaluation tool for the TPS61020 inductive step-up converter in QFN-10 package which can supply voltages up to 5.5V from a 0.9-V to 6.5-V input featuring an LDO down-mode regulating the output voltage even if the input voltage exceeds the output voltage level. The (...)

Design tools & simulation

SIMULATION MODELS Download
SLIM026A.TSC (1256 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLIM027A.TSC (2579 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLIM028A.ZIP (33 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLIM029.TSC (128 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLIM030.TSM (8 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLIM037.ZIP (120 KB) - PSpice Model
SIMULATION MODELS Download
SLIM039A.ZIP (225 KB) - PSpice Model
GERBER FILES Download
SLVC139.ZIP (92 KB)

Reference designs

REFERENCE DESIGNS Download
MSP430FR2633 Microcontroller CapTIvate Electronic Lock and Keypad Reference Design
TIDM-CAPTIVATE-E-LOCK — This reference design demonstrates an ultra-low-power capacitive touch panel solution based on a single MSP430™ microcontroller (MCU) with CapTIvate™ technology. The use of self and mutual capacitance technology enables multifunctional capacitive touch panels (buttons, and proximity (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VSON (DRC) 10 View options

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