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reference designTPS61021A

Texas Instruments TPS61021A

TPS61021A 3-A Boost Converter with 0.5-V Ultra Low Input Voltage

Overview

TopologyBoost Converter
Input voltage0.5-4.4 V
Output 14 V / 3 A
IC revision1.0

Description

The TPS61021A provides a power supply solution forportable or smart devices powered by alkaline, NiMH,Li-Mn, or Li-ion batteries. The TPS61021A is capableof outputting 3.3-V voltage and 1.5-A current from abattery discharged to as low as 1.8 V. Capable ofoperating with 0.5-V input voltage enables theTPS61021A to extend the battery run time.

Features

Input Voltage Range: 0.5 V to 4.4 V

  • 0.9 V Minimum Input Voltage for Startup
  • Output Voltage Setting Range: 1.8 V to 4.0 V
  • 91% Efficiency at VIN = 2.4 V, VOUT = 3.3 V andIOUT = 1.5 A
  • 2.0-MHz Switching Frequency
  • IOUT > 1.5 A at VOUT = 3.3 V when VIN > 1.8 V
  • 17-μA Typical Quiescent Current
  • ±2.5% Reference Voltage Accuracy over -40°C to125°C
  • PFM Operation Mode at Light Load
  • True Disconnection Between Input and OutputDuring Shutdown
  • Output Over Voltage Protection
  • Output Short Circuit Protection
  • Thermal Shutdown Protection
  • 2-mm x 2-mm WSON Package

Typical applications

  • Thermostat
  • Portable Medical Equipment
  • Supercap Backup System
  • Gaming Control
  • Battery Powered IoT Devices

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
SamplesAvailability & Sample
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744383360047
SPECWE-MAPI SMT Power Inductor, 0.47 µH, 7.55 A
Simu­lation
Availability
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Downloads10 files

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CAD files ZIP

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance0.47 µH
Performance Rated Current7.55 A
Saturation Current @ 30%9.8 A
DC Resistance18 mΩ
Self Resonant Frequency99 MHz
Operating Voltage80 V
MountSMT 
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