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AC/DC & DC/DC converters (integrated FET)

TPS63031

ACTIVE

High Efficient Single Inductor Buck-Boost Converter with 1-A Switches

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Data sheet

TPS63031

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck-Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2200 Switching frequency (max) (kHz) 2600 Features Enable, Frequency synchronization, Light Load Efficiency, Load Disconnect, Synchronous Rectification, UVLO Fixed Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iq (typ) (µA) 25 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 1
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck-Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2200 Switching frequency (max) (kHz) 2600 Features Enable, Frequency synchronization, Light Load Efficiency, Load Disconnect, Synchronous Rectification, UVLO Fixed Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iq (typ) (µA) 25 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 1
WSON (DSK) 10 6.25 mm² 2.5 x 2.5
  • Input voltage range: 1.8 V to 5.5 V
  • Fixed and adjustable output voltage options from 1.2 V to 5.5 V
  • Up to 96% efficiency
  • 800-mA Output current at 3.3 V in step-down mode (VIN = 3.6 V to 5.5 V)
  • Up to 500-mA output current at 3.3 V in boost mode (VIN > 2.4 V)
  • Automatic transition between step-down and boost mode
  • Device quiescent current less than 50 µA
  • Power-save mode for improved efficiency at low-output power
  • Forced fixed frequency operation and synchronization possible
  • Load disconnect during shutdown
  • Overtemperature protection
  • Available in a small 2.5-mm × 2.5-mm 10-pin VSON package (QFN)
  • Input voltage range: 1.8 V to 5.5 V
  • Fixed and adjustable output voltage options from 1.2 V to 5.5 V
  • Up to 96% efficiency
  • 800-mA Output current at 3.3 V in step-down mode (VIN = 3.6 V to 5.5 V)
  • Up to 500-mA output current at 3.3 V in boost mode (VIN > 2.4 V)
  • Automatic transition between step-down and boost mode
  • Device quiescent current less than 50 µA
  • Power-save mode for improved efficiency at low-output power
  • Forced fixed frequency operation and synchronization possible
  • Load disconnect during shutdown
  • Overtemperature protection
  • Available in a small 2.5-mm × 2.5-mm 10-pin VSON package (QFN)

The TPS6303x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-ion or Li-polymer battery. Output currents can go as high as 600 mA while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed-frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low-load currents, the converter enters power-save mode to maintain 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 average current in the switches is limited to a typical value of 1000 mA. The output voltage is programmable using 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 disconnected from the battery.

The TPS6303x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 10-pin VSON package measuring 2.5-mm × 2.5-mm (DSK).

The TPS6303x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-ion or Li-polymer battery. Output currents can go as high as 600 mA while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed-frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low-load currents, the converter enters power-save mode to maintain 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 average current in the switches is limited to a typical value of 1000 mA. The output voltage is programmable using 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 disconnected from the battery.

The TPS6303x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 10-pin VSON package measuring 2.5-mm × 2.5-mm (DSK).
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Technical documentation

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Type Title Date
* Data sheet TPS6303x High Efficiency Single Inductor Buck-Boost Converter With 1-A Switches datasheet (Rev. D) PDF | HTML 30 Mar 2020
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Application note 4스위치 벅 부스트 전력 단계의 기본 계산 (Rev. C) PDF | HTML 02 Oct 2023
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) PDF | HTML 09 Jun 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 09 Jul 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
White paper Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) 28 Mar 2012
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
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.

Simulation model

TPS63031 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMBA5A.ZIP (63 KB) - PSpice Model
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Calculation tool

SLVC808 — Battery Lifetime Estimator

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS63000 — High efficiency Buck-Boost Converter with 1.8A Current Switches in 3x3 QFN TPS63000-Q1 — Automotive 1.8V to 5.5V Input Range, 1.8A High Efficiency Buck/Boost Converter TPS63001 — 96% Buck-Boost Converter with 1.7A Current Switches, 3.3V fixed Output voltage in 3x3 QFN TPS63002 — 96% Buck-Boost Converter with 1.7A Current Switches, 5V fixed Output voltage in 3x3 QFN TPS63010 — High Efficient Single Inductor Buck-Boost Converter with 2-A Switches TPS63011 — High Efficient Single Inductor Buck-Boost Converter with 2-A Switches TPS63012 — High Efficient Single Inductor Buck-Boost Converter with 2-A Switches TPS63020 — High Efficiency Single Inductor Buck-Boost Converter with 4A Switch TPS63020-Q1 — High Efficiency Automotive Single Inductor Buck-Boost Converter with 4A Switch TPS63021 — High Efficiency Single Inductor Buck-Boost Converter with 4A Switch TPS63024 — High Efficiency 1.5A Single Inductor Buck-Boost Converter TPS630241 — High Efficiency 1.5A Single Inductor Buck-Boost Converter TPS630242 — High Efficiency 1.5A Single Inductor Buck-Boost Converter TPS630250 — 4-A switch single-inductor buck-boost converter in 3.7 mm² DSBGA package TPS630251 — 4A switch Single-Inductor Buck-Boost Converter in WCSP TPS630252 — 4A switch Single-Inductor Buck-Boost Converter in WCSP TPS63027 — High Efficiency 4.5A Switch Single-Inductor Buck-Boost Converter TPS63030 — High Efficient Single Inductor Buck-Boost Converter with 1-A Switches TPS63031 — High Efficient Single Inductor Buck-Boost Converter with 1-A Switches TPS63036 — High Efficient Single Inductor Buck-Boost Converter with 1-A Switches TPS63050 — TPS6305x Single Inductor Buck-Boost with 1-A Switches and Adjustable Soft Start TPS63051 — Tiny Single Inductor Buck Boost Converter TPS63060 — 2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter TPS63060-EP — HIGH INPUT VOLTAGE BUCK-BOOST CONVERTER WITH 2-A SWITCH CURRENT TPS63061 — 2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter TPS63070 — Wide input voltage (2V-16V) buck-boost converter TPS63700 — Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN TPS63710 — Low Noise, 1A Synchronous Inverting Buck Converter in 3x3 WSON Package TPS63802 — 2-A, high-efficient, 11-µA quiescent current buck-boost converter in QFN/DFN package TPS63805 — 2-A, high-efficient, 11-µA quiescent current buck-boost converter with tiny solution size TPS63806 — 2.5-A high-efficient buck-boost converter with optimized load step response in tiny WCSP TPS63807 — 2A,11-uA quiescent current buck-boost converter TPS63810 — 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling TPS63811 — 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling TPS63900 — 1.8-V to 5.5-V, 75-nA IQ buck-boost converter with input current limit and Dynamic Voltage Scaling
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Reference designs

TIDM-AIRQUALITYSENSOR — MSP430FR4133 Microcontroller Air Quality Sensor Reference Design

In this reference design, a simple air quality monitor is created and implemented using the particulate matter 2.5 level. This design uses MSP430FR4133 microcontroller (MCU) and Sharp™ DN7C3CA006 PM2.5 sensor. This ultra-low-power centric design of the MSP430™ MCU coupled with (...)
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Schematic: PDF
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