TPS61220

SOT-SC70 (DCK)

4 mm² 2 x 2.1

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

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

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)	11 Nov 2014
	Application note	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)	11 Dec 2018
	Selection guide	Power Management Guide 2018 (Rev. R)	25 Jun 2018
	Application note	Extending the Soft Start Time Without a Soft Start Pin (Rev. B)	15 Jun 2017
	Application note	Calculating and Measuring the No Load Input Current of the Boost Converter	23 Sep 2016
	Technical article	Trends in building automation: connected sensors in safety and security	20 Jul 2016
	Application note	How to Select a Proper Inductor for Low Power Boost Converter	03 Jun 2016
	Application note	Five Steps to a Good PCB Layout of the Boost Converter	03 May 2016
	Technical article	How to use an AA battery as a backup power supply for an insulin pump	09 Jun 2015
	Analog design journal	Accurately measuring efficiency of ultralow-IQ devices	22 Jan 2014
	Application note	Basic Calculation of a Boost Converter's Power Stage (Rev. C)	08 Jan 2014
	Application note	Automated Frequency Response Analyzer	09 Oct 2013
	Analog design journal	Design considerations for a resistive feedback divider in a DC/DC converter	26 Apr 2012
	Analog design journal	IQ: What it is, what it isn’t, and how to use it	17 Jun 2011
	User guide	TPS61220EVM-319 User's Guide	02 Feb 2009
	Application note	Minimizing Ringing at the Switch Node of a Boost Converter	15 Sep 2006

Design & development

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

Evaluation board

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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).

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User guide

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Evaluation board

TPS61220EVM-319 — TPS61220EVM-319 Evaluation Module

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

User guide

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Simulation model

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SLVMAK1A.ZIP (62 KB) - PSpice Model

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)

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Schematic

Schematic for the ECG With Bluetooth Low-Energy

SNVC112.PDF (214 KB)

Bill of materials (BOM)

Bill of Materials for the ECG With Bluetooth Low-Energy

SNVC113.PDF (102 KB)

Gerber file

ECG With Bluetooth Low-Energy Gerber

SNVC114.ZIP (901 KB)

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