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TPS61022 Datasheet Preview

TPS61022 Datasheet

8-A Boost converter

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TPS61022
SLVSDX7B – JANUARY 2019 – REVISED JANUARY 2020
TPS61022 8-A Boost converter with 0.5-V ultra-low input voltage
1 Features
1 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
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(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61022
VQFN (7)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
L1
VIN
1 µH
C1
Layout Example
GND
VOUT
PFM
OFF
PWM
ON
VIN
GND
SW
VOUT
TPS61022
FB
MODE
EN
VOUT
C2
R1
R2
GND
VIN
FB
EN
MODE
VIN
VOUT
SW
GND
GND
Note: A ceramic output capacitor is needed
and must be close to VOUT pin and GND
pin of the TPS61022
1
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.




etcTI

TPS61022 Datasheet Preview

TPS61022 Datasheet

8-A Boost converter

No Preview Available !

TPS61022
SLVSDX7B – JANUARY 2019 – REVISED JANUARY 2020
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................................................. 10
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 ................................................... 19
9 Power Supply Recommendations...................... 19
10 Layout................................................................... 20
10.1 Layout Guidelines ................................................. 20
10.2 Layout Example .................................................... 20
10.3 Thermal Considerations ........................................ 21
11 Device and Documentation Support ................. 22
11.1 Device Support .................................................... 22
11.2 Receiving Notification of Documentation Updates 22
11.3 Support Resources ............................................... 22
11.4 Trademarks ........................................................... 22
11.5 Electrostatic Discharge Caution ............................ 22
11.6 Glossary ................................................................ 22
12 Mechanical, Packaging, and Orderable
Information ........................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (March 2019) to Revision B
Page
• Added Layout Example image to front page ......................................................................................................................... 1
Changes from Original (January 2019) to Revision A
Page
• First release of production-data data sheet ........................................................................................................................... 1
2
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Product Folder Links: TPS61022
Copyright © 2019–2020, Texas Instruments Incorporated



Part Number TPS61022
Description 8-A Boost converter
Maker etcTI
Total Page 3 Pages
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TPS61022 Datasheet PDF





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