TPS61220

ACTIVE

0.7-VIN, adjustable output voltage boost converter with 5.5-μA quiescent current

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Product details

Parameters

Vin (Min) (V) 0.7 Vin (Max) (V) 5.5 Vout (Min) (V) 1.8 Vout (Max) (V) 6 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
* Data sheet 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 Calculating and Measuring the No Load Input Current of the Boost Converter Sep. 23, 2016
Technical article Trends in building automation: connected sensors in safety and security Jul. 20, 2016
Application note How to Select a Proper Inductor for Low Power Boost Converter Jun. 03, 2016
Application note Five Steps to a Good PCB Layout of the Boost Converter May 03, 2016
Technical article How to use an AA battery as a backup power supply for an insulin pump Jun. 09, 2015
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
User guide TPS61220EVM-319 User's Guide Feb. 02, 2009
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
Description

The ADS8686S evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the ADS8686S dual simultaneous-sampling analog-to-digital converter (ADC) with an integrated analog front end (AFE).

ADS8686SEVM-PDK includes the ADS8686SEVM board and a precision host interface (PHI (...)

Features
  • Includes hardware and software required for diagnostic testing, as well as accurate performance of ADS8686S ADC
  • PHI controller provides a convenient communication interface to ADS8686SEVM over USB 2.0 (or higher) for power delivery, as well as digital input/output
  • Easy-to-use evaluation software for (...)
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 (...)

Design tools & simulation

SIMULATION MODEL Download
SLVMAK1A.ZIP (62 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
  • (...)
SCHEMATIC Download
SNVC112.PDF (214 KB)
BILL OF MATERIALS (BOM) Download
SNVC113.PDF (102 KB)
GERBER FILE Download
SNVC114.ZIP (901 KB)

Reference designs

REFERENCE DESIGNS Download
Isolated power architecture reference design for communication and analog input/output modules
TIDA-00300 This reference design provides a simple means through which to isolate I2C or SPI type communication lines. This is often required in Grid Infrastructure applications such as, protertion relays and circuit breakers, where high voltages are involved. This reference design provides the complete (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Multi-Parameter Bio-Signal Monitor Reference Design For Personal Monitoring
TIDM-BIOSIGNMONITOR The Multi-Parameter Bio-signal Monitor (MPBSM) is a proof-of-concept Evaluation Module (EVM) that is capable of measuring three of the four primary vital signs. The MPBSM proof of concept can directly measure Electrocardiogram (ECG), Galvanic Skin Response (GSR), and skin temperature. The MPBSM (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
50mA Wireless Charger with 19mm Coil BoosterPack Reference Design
TIDA-00881 The TIDA-00881 reference design is a booster pack that provides a wireless charger and an entire battery managment solution to power any low power TI Launchpad. This design is a  highly integrated power management solution that is well-suited for ultra-low power applications using an off the (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
50mA Wireless Charger Booster Pack Reference Design
TIDA-00668 The TIDA-00668 is a booster pack that provides a wireless charger and an entire battery managment solution to power any low power TI Launchpad. This design is a highly integrated power management solution that is well-suited for ultra-low power applications.

The primary method of storage is an (...)

document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Energy Harvester Booster Pack Reference Design
TIDA-00588 The TIDA-00588 reference design is a BoosterPack that harvests energy from a wide variety of current sources or from the onboard solar cells to power any low-power TI LaunchPad. This design is a highly integrated power management solution that is well-suited for ultra-low power applications.

There (...)

document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Energy Storage Circuit for Uninterrupted Power Supply and Extending Alkaline Battery Lifetime
PMP9771 An alkaline battery and a boost converter are usually used to power the load system which requires high voltage, such as the motor driver in insulin pump. In this reference design, a lithium polymer battery is added to the output of the boost converter to absorb the pulse load current and extend the (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Wireless Heart Monitor with Bluetooth Low Energy
TIDA-00096 The Wireless Heart Rate Monitor with Bluetooth low-energy (BLE) is intended as a reference design that customers can use to develop end-products for battery-powered, 3-channel health and fitness electrocardiogram (ECG) applications.  The ADS1293 is a highly integrated low-power analog front end (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Half-Duplex, Non-Isolated RS-485 BoosterPack Reference Design
TIDA-00214 The Half-Duplex, Non-Isolated RS-485 BoosterPack allows for easy evaluation of TI’s RS-485 transceivers for applications such as building management systems (BMS), factory automation, building automation, and HVAC. The BoosterPack is designed and tested to support data rates up to 1.25 Mbps (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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