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reference designTI / TPS610991

Texas Instruments TI / TPS610991

Synchronous Boost Converter with 800 nA Ultra-Low Quiescent Current

Overview

TopologyBuck-Boost Converter
Input voltage0.7-5.5 V
Output 11.8 V
IC revisionH

Description

The TPS61099x device is a synchronous boostconverter with 1-μA ultra-low quiescent current. Thedevice is designed for products powered by analkaline battery, NiMH rechargeable battery, Li-Mnbattery or rechargeable Li-Ion battery, for which highefficiency under light load condition is critical toachieve long battery life operation.

Features

600 nA Ultra-Low IQ into VOUT Pin

  • 400 nA Ultra-Low IQ into VIN Pin
  • Operating Input Voltage from 0.7 V to 5.5 V
  • Adjustable Output Voltage from 1.8 V to 5.5 V
  • Fixed Output Voltage Versions Available
  • Minimum 0.8 A Switch Peak Current Limit
  • Regulated Output Voltage in Down Mode
  • True Disconnection During Shutdown
  • Up to 75% Efficiency at 10 μA Load with FixedOutput Voltage Versions
  • Up to 93% Efficiency from 10 mA to 300 mA Load
  • 6-Ball 1.23 mm x 0.88 mm WCSP Package

Typical applications

  • Memory LCD Bias / Optical Heart Rate Monitor LED Bias
  • Wearable Applications / Portable Products
  • Low Power Wireless Applications
  • Battery Powered Systems

More information

Products

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Data­sheet
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Product series
L(µH)
IR(A)
ISAT(A)
RDC(mΩ)
fres(MHz)
SamplesAvailability & Sample
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74404024010
SPECWE-LQS SMT Power Inductor, 1 µH, 2.3 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LQS SMT Power Inductor
Inductance1 µH
Rated Current2.3 A
Saturation Current2.5 A
DC Resistance36 mΩ
Self Resonant Frequency159 MHz
–Check availability
74404024022
SPECWE-LQS SMT Power Inductor, 2.2 µH, 1.65 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LQS SMT Power Inductor
Inductance2.2 µH
Rated Current1.65 A
Saturation Current1.9 A
DC Resistance80 mΩ
Self Resonant Frequency83 MHz
–Check availability