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TPS61027

ACTIVE

5-V Output, 1.5-A Switch, 96% Efficient Boost Converter w/ LDO Down-Mode, QFN-10

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Data sheet

TPS61027

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Boost Vin (max) (V) 6.5 Vin (min) (V) 0.9 Vout (max) (V) 5 Vout (min) (V) 5 Switch current limit (typ) (A) 1.5 Features Synchronous Rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000025 Duty cycle (max) (%) 100
Rating Catalog Topology Boost Vin (max) (V) 6.5 Vin (min) (V) 0.9 Vout (max) (V) 5 Vout (min) (V) 5 Switch current limit (typ) (A) 1.5 Features Synchronous Rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000025 Duty cycle (max) (%) 100
VSON (DRC) 10 9 mm² (3 mm × 3 mm)
  • 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
  • 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

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).

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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Top documentation Type Title Format options Date
* Data sheet TPS6102x 96% Efficient Synchronous Boost Converter datasheet (Rev. G) PDF | HTML Dec 24, 2014
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML Dec 6, 2023
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML Oct 28, 2022
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec 11, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov 29, 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun 15, 2017
Application note Five Steps to a Good PCB Layout of the Boost Converter PDF | HTML May 3, 2016
Analog design Journal Design considerations for a resistive feedback divider in a DC/DC converter Apr 26, 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep 19, 2011
Analog design Journal IQ: What it is, what it isn’t, and how to use it Jun 17, 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter Sep 15, 2006
Application note Factors That Determine Light Load PSM Switch Freq for TPS6102x Boost Converters Apr 21, 2006
Application note TPS6102x Boost Converter Down Conversion Mode Dec 16, 2004
White paper A Step-Down Conversion Concept for a PWM-Mode Boost Converter Aug 26, 2003

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Evaluation board

TPS61020EVM-025 — TPS61020 Evaluation Module

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 (...)

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