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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) 5.5 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-23 (DBV) 6 5 mm² 2.9 x 1.6 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 5.5 V
  • Small 6-pin Thin SOT-23 Package
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Description

The TLV61220 device provides 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 packaged in a 6-pin thin SOT-23 package (DBV).

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TPS61098 ACTIVE Low input voltage, 4.3V output voltage, synchronous boost converter with integrated LDO/load switch For applications requiring ultra-low Iq or smaller package.

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 14
Type Title Date
* Datasheet TLV61220 Low-Input Voltage Step-Up Converter in Thin SOT-23 Package datasheet (Rev. A) Dec. 29, 2014
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application notes Calculating and Measuring the No Load Input Current of the Boost Converter Sep. 23, 2016
Application notes How to Select a Proper Inductor for Low Power Boost Converter Jun. 03, 2016
Application notes Five Steps to a Good PCB Layout of the Boost Converter May 03, 2016
Technical articles When discharging a super capacitor, drain it all the way! Sep. 17, 2015
Application notes Accurately measuring efficiency of ultralow-IQ devices Jan. 22, 2014
Application notes Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Application notes Automated Frequency Response Analyzer Oct. 09, 2013
Application notes Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
User guides TLV61220EVM-120, Low-Input Voltage, Step-Up Converter Evaluation Module Mar. 01, 2012
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
Application notes 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 BOARDS Download
document-generic User guide
49
Description

The TLV61220EVM-120 demonstrates the Texas Instruments TLV61220 synchronous boost converter. The input voltage range of the TLV61220 is 0.7 V to 5.5 V, allowing the device to operate from one-cell to three-cell battery configurations in addition to a single-cell Li-ion battery. This user’s guide (...)

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 and Input Undervoltage (...)

Design tools & simulation

SIMULATION MODELS Download
SLVMAK1A.ZIP (62 KB) - PSpice Model
SIMULATION TOOLS 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
  • (...)
GERBER FILES Download
SLVC418.ZIP (243 KB)

Reference designs

REFERENCE DESIGNS Download
Low Input Voltage High Current Boost Converter Reference Design with TPS61088
PMP9772 This reference design delivers a very low input voltage high current boost application with a combination of the TPS61088 and the TLV61220. The TLV61220 is a low-input voltage boost converter. Its minimum input voltage is 0.7V. Setting the TLV61220’s output voltage to 5.5V to supply the (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options

Ordering & quality

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