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TPS61022

ACTIVE

8-A boost converter with 0.5-V ultra-low input voltage

Product details

Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 0.5 Vout (max) (V) 5.5 Vout (min) (V) 2.2 Switch current limit (typ) (A) 8 Features Enable, Light-load efficiency, Load Disconnect, Pass-through mode, Prebias startup, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000027 Duty cycle (max) (%) 97
Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 0.5 Vout (max) (V) 5.5 Vout (min) (V) 2.2 Switch current limit (typ) (A) 8 Features Enable, Light-load efficiency, Load Disconnect, Pass-through mode, Prebias startup, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000027 Duty cycle (max) (%) 97
VQFN-HR (RWU) 7 4 mm2 2 x 2
  • Input voltage range: 0.5 V to 5.5 V
  • 1.8-V minimum input voltage for start-up
  • Output voltage setting range: 2.2 V to 5.5 V
  • Two 12-mΩ (LS) / 18-mΩ (HS) MOSFETs
  • 8-A valley switching current limit
  • 94.7% efficiency at VIN = 3.6 V, VOUT = 5 V and IOUT = 3 A
  • 1-MHz switching frequency when VIN > 1.5 V and 0.6-MHz switching frequency when VIN < 1 V
  • ±2.5% reference voltage accuracy over –40°C to +125°C
  • Pin-selectable auto PFM operation mode or forced PWM operation mode at light load
  • Pass-through mode when VIN > VOUT
  • True disconnection between input and output during shutdown
  • Output overvoltage and thermal shutdown protections
  • Output short-circuit protection
  • 2-mm × 2-mm VQFN 7-pin package
  • Input voltage range: 0.5 V to 5.5 V
  • 1.8-V minimum input voltage for start-up
  • Output voltage setting range: 2.2 V to 5.5 V
  • Two 12-mΩ (LS) / 18-mΩ (HS) MOSFETs
  • 8-A valley switching current limit
  • 94.7% efficiency at VIN = 3.6 V, VOUT = 5 V and IOUT = 3 A
  • 1-MHz switching frequency when VIN > 1.5 V and 0.6-MHz switching frequency when VIN < 1 V
  • ±2.5% reference voltage accuracy over –40°C to +125°C
  • Pin-selectable auto PFM operation mode or forced PWM operation mode at light load
  • Pass-through mode when VIN > VOUT
  • True disconnection between input and output during shutdown
  • Output overvoltage and thermal shutdown protections
  • Output short-circuit protection
  • 2-mm × 2-mm VQFN 7-pin package

The TPS61022 provides a power supply solution for portable equipment and IoT devices powered by various batteries and super capacitors. The TPS61022 has minimum 6.5-A valley switch current limit over full temperature range. With a wide input voltage range of 0.5 V to 5.5 V, the TPS61022 supports supercapacitor backup power applications, which may deeply discharge the supercapacitor.

The TPS61022 operates at 1-MHz switching frequency when the input voltage is above 1.5 V. the switching frequency decreases gradually to 0.6 MHz when the input voltage is below 1.5 V down to 1 V. A MODE pin sets the TPS61022 operating either in power-save mode or forced PWM mode in light load condition. The TPS61022 only consumes a 26-µA quiescent current from VOUT in light load condition. During shutdown, the load is completely disconnected from the input power. The TPS61022 has 5.7-V output overvoltage protection, output short-circuit protection, and thermal shutdown protection.

The TPS61022 offers a very small solution size with its 2-mm × 2-mm VQFN package and minimum amount of external components.

The TPS61022 provides a power supply solution for portable equipment and IoT devices powered by various batteries and super capacitors. The TPS61022 has minimum 6.5-A valley switch current limit over full temperature range. With a wide input voltage range of 0.5 V to 5.5 V, the TPS61022 supports supercapacitor backup power applications, which may deeply discharge the supercapacitor.

The TPS61022 operates at 1-MHz switching frequency when the input voltage is above 1.5 V. the switching frequency decreases gradually to 0.6 MHz when the input voltage is below 1.5 V down to 1 V. A MODE pin sets the TPS61022 operating either in power-save mode or forced PWM mode in light load condition. The TPS61022 only consumes a 26-µA quiescent current from VOUT in light load condition. During shutdown, the load is completely disconnected from the input power. The TPS61022 has 5.7-V output overvoltage protection, output short-circuit protection, and thermal shutdown protection.

The TPS61022 offers a very small solution size with its 2-mm × 2-mm VQFN package and minimum amount of external components.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS61022 8-A Boost Converter with 0.5-V Ultra-low Input Voltage datasheet (Rev. D) PDF | HTML 28 Jul 2021
Application note Hysteresis Control MPPT Method with Generic DC/DC Converter PDF | HTML 21 Jun 2024
Application note TPS61022 ? TPS61023? ???? ?? ??? ?? ?? ??? ?? (Rev. A) PDF | HTML 21 Nov 2022
Application note Adjustable Undervoltage Lockout Circuit Used in TPS61022 and TPS61023 (Rev. A) PDF | HTML 01 Nov 2022
Application brief Mechanism of TPS61022 PFM and Load Threshold Between PFM and PWM for TPS61xxx PDF | HTML 10 Mar 2022
Technical article Effective ways to implement backup power from supercapacitors PDF | HTML 02 Nov 2021
Application note Measuring and Understanding the Output Voltage Ripple of a Boost Converter PDF | HTML 22 Feb 2021
Application note TPS61022 and TPS61023 Boost Converters Layout Guidelines 20 May 2020
Application note Designing Boost Converter TPS61022 for Supercap Backup Power Applications PDF | HTML 19 Mar 2020
Application brief Supercap last gasp failsafe power for RF comunications in E-Meters 27 Jan 2019

Design & development

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

Evaluation board

TPS61022EVM-034 — TPS61022RWU evaluation module

TPS61022 is an 8-A boost converter with ultra-low input voltage. It features 0.5-V to 5.5-V input voltage range, 2.2-V to 5.5-V adjustable output voltage  and up to 8-A input current capability. It also features a special MODE pin to enable or disable the power save mode.

The TPS61022EVM-034 is the (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS61022 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMCZ3A.ZIP (119 KB) - PSpice Model
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Calculation tool

SLVC760 — TPS61022 Calculation Tool

Supported products & hardware

Supported products & hardware
Reference designs

PMP23518 — 3.6V, 1A output, smart meter, supercapacitor backup power supply reference design

This reference design demonstrates a backup power supply design for smart meter applications. The TPS61022 boost converter has an extended operating range of 0.5V which maximizes the energy use of the supercapacitor energy. This results in a longer holdup time or a smaller supercapacitor. The (...)
Test report: PDF
Reference designs

PMP30528 — Supercapacitor backup power supply for E-Meters reference design

This reference design automatically provides back-up voltages to an E-Meter during a power interruption. While the input voltage is between 10 V to 12 V, two buck controllers (TPS62147, TPS62173) generate 3.9 V at 2 A and 5 V at 150 mA. An optional synchronous boost generates 3.3 V at 50 mA. A (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RWU) 7 Ultra Librarian

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