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TPS61022 Dataheets PDF



Part Number TPS61022
Manufacturers Texas Instruments
Logo Texas Instruments
Description 8-A Boost converter
Datasheet TPS61022 DatasheetTPS61022 Datasheet (PDF)

TPS61022 SLVSDX7D – JANUARY 2019 – REVISED JULY 2021 TPS61022 8-A Boost Converter with 0.5-V Ultra-low Input Voltage 1 Features • 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% referen.

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TPS61022 SLVSDX7D – JANUARY 2019 – REVISED JULY 2021 TPS61022 8-A Boost Converter with 0.5-V Ultra-low Input Voltage 1 Features • 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 2 Applications • USB port • Supercap backup • GPRS power supply VIN C1 L1 1 µH VIN SW PFM PWM ON GND VOUT TPS61022 FB MODE EN VOUT C2 R1 R2 OFF Typical Application Circuit 3 Description 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. Device Information PART NUMBER PACKAGE(1) BODY SIZE (NOM) TPS61022 VQFN (7) 2.00 mm × 2.00 mm (1) For all available packages, see the orderable addnedum at the end of the data sheet. GND GND VIN FB EN MODE VIN VOUT VOUT SW GND GND A ceramic output capacitor is needed and must be close to VOUT pin and GND pin of the TPS61022 Layout Example An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS61022 SLVSDX7D – JANUARY 2019 – REVISED JULY 2021 www.ti.com Table of Contents 1 Features............................................................................1 2 Applications..................................................................... 1 3 Description.......................................................................1 4 Revision History.............................................................. 2 5 Pin Configuration and Functions...................................3 6 Specifications.................................................................. 4 6.1 Absolute Maximum Ratings ....................................... 4 6.2 ESD Ratings .............................................................. 4 6.3 Recommended Operating Conditions ........................4 6.4 Thermal Information ...................................................4 6.5 Electrical Characteristics ............................................5 6.6 Typical Characteristics................................................ 6 7 Detailed Description........................................................9 7.1 Overview..................................................................... 9 7.2 Functional Block Diagram........................................... 9 7.3 Feature Description.....................................................9 7.4 Device Functional Modes..........................................11 8 Application and Implementation.................................. 13 8.1 Application Information............................................. 13 8.2 Typical Application ................................................... 13 8.3 System Examples..................................................... 18 9 Power Supply Recommendations................................19 10 Layout...........................................................................20 10.1 Layout Guidelines................................................... 20 10.2 Layout Example...................................................... 20 10.3 Thermal Considerations..........................................20 11 Device and Documentation Support..........................22 11.1 Device Support ......................................................


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