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TPS61222

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0.7-VIN, 5-V fixed output voltage boost converter with 5.5-μA quiescent current

Data sheet
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0.7-VIN, 5-V fixed output voltage boost converter with 5.5-μA quiescent current

TPS61222

ACTIVE
Data sheet Order now

Product details

Parameters

Vin (Min) (V) 0.7 Vin (Max) (V) 5.5 Vout (Min) (V) 5 Vout (Max) (V) 5 Switch current limit (Typ) (A) 0.4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 2000 Iq (Typ) (mA) 0.005 Features Synchronous Rectification Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 open-in-new Find other Boost converters (integrated switch)

Features

  • Up to 95% Efficiency at Typical Operating
    Conditions
  • 5.5 µA Quiescent Current
  • Startup Into Load at 0.7 V Input Voltage
  • Operating Input Voltage from 0.7 V to 5.5 V
  • Pass-Through Function during Shutdown
  • Minimum Switching Current 200 mA
  • Protections:
    • Output Overvoltage
    • Overtemperature
    • Input Undervoltage Lockout
  • Adjustable Output Voltage from 1.8 V to 6 V
  • Fixed Output Voltage Versions
  • Small 6-pin SC-70 Package
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Description

The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size.

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Technical documentation

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Type Title Date
* Datasheet TPS6122x Low Input Voltage, 0.7V Boost Converter With 5.5μA Quiescent Current datasheet (Rev. B) Nov. 11, 2014
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 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 May 03, 2016
Application note Accurately measuring efficiency of ultralow-IQ devices Jan. 22, 2014
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Application note Automated Frequency Response Analyzer Oct. 09, 2013
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application note 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

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description

The TPS61220EVM-319 facilitates evaluation of the TPS61220 low input voltage boost converter.

Features
  • Up to 95% Efficiency
  • More than 80% Efficiency at Wide Area of Typical Operating Points
  • Ultra-Low Device Quiescent Current
  • Startup Under Load at 0.7V Input Voltage
  • Operating Input Voltage Range:0.7 V to 5.5 V
  • Pass-Through Function during Shutdown
  • Overvoltage Protection
  • Overtemperature Protection via Thermal (...)
View details
DAUGHTER CARD Download
document-generic User guide
24.99
Description
The Sharp® 128x128 Memory LCD and microSD Card TI BoosterPack Plug-in Module is based on the LS013B7DH03 super low power TFT display panel from Sharp Electronics and also features a microSD card expansion slot. Both the LCD and SD card can be controlled using the serial peripheral interface (...)
Features
  • Sharp® LS013B7DH03 Memory LCD
    • 1.28 inch screen offering 128x128 monochrome pixels
    • Super low power consumption TFT panel
  • microSD Card Expansion Slot (no SD Card included)
  • DCDC 3V-to-5V converter available to also support 5V Sharp displays
View details

Design tools & simulation

SIMULATION MODEL Download
SLVMAK3A.ZIP (79 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
View details

Reference designs

REFERENCE DESIGNS Download
Near Field Communication (NFC) Reader/Writer Reference Design
TIDM-NFC-RW — This Near Field Communication (NFC) reference design provides a firmware example for the implementation of an NFC Reader/Writer application using the TRF7970A NFC transceiver. This reference design provides a number of easy-to-use Application Programming Interfaces (APIs), which allow users to (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Near Field Communication (NFC) Card Emulation Reference Design
TIDM-NFC-CE — This Near Field Communication (NFC) reference design provides a firmware example for the implementation of an NFC Card Emulation application using the TRF7970A NFC transceiver. This reference design provides a small number of easy to use Application Programming Interfaces (APIs) which allow users to (...)
document-generic Schematic
REFERENCE DESIGNS Download
I3Mote for Industrial Internet of Things Reference Design
TIDA-01452 — This reference design introduces a platform called Intelligent Industrial Internet (I3) Mote. The I3Mote is designed as an open and universal hardware platform targeting process/factory automation and building automation connectivity and sensing deployments. By using the most advanced low-power (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Near Field Communications (NFC) Transceiver Reference Design
TIDM-NFC-TRANSCEIVER — This Near Field Communications (NFC) reference design outlines the required components, layout considerations, and provides firmware examples to implement NFC into applications for extracting NFC Data Exchange Format (NDEF) data from transponders, implement a Peer-to-Peer (P2P) connection or emulate (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
RFID Transceiver Reference Design
TIDM-RFID-TRANSCEIVER — This Radio Frequency Identification (RFID) reference design outlines the required components, layout considerations, and provides firmware examples to implement RFID into applications for extracting RFID data from transponders. RFID enables access control, prepayment, and inventory management. The (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options

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