TLV61225

ACTIVE

Single cell 3.3V output voltage high efficient step-up converter in 6 pin SC-70 package

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Product details

Parameters

Vin (Min) (V) 0.7 Vin (Max) (V) 3.3 Vout (Min) (V) 3.3 Vout (Max) (V) 3.3 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 94% Efficiency at Typical Operating
    Conditions
  • 5-µA Quiescent Current
  • Operating Input Voltage from 0.7 V to 3.3 V
  • Pass-Through Function During Shutdown
  • Output Current of More Than 40-mA From a
    1.2-V Input
  • Typical Switch Current Rating 400 mA
  • Output Overvoltage Protection
  • Overtemperature Protection
  • Fixed 3.3-V Output Voltage
  • Small 6-Pin SC-70 Package
  • APPLICATIONS
    • Battery-Powered Applications
      • 1- to 2- Cell NiMH or Alkaline
      • 1-Cell Li-Primary
    • Consumer and Portable Medical Products
    • Personal Care Products

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Description

The TLV61225 device provides a power-supply solution for products powered by either a single-cell or 2-cell alkaline or NiMH, or 1-cell Li-primary 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 this device is set internally to a fixed output voltage of 3.3 V. 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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Similar but not functionally equivalent to the compared device:
TPS610981 ACTIVE Low input voltage, 3.3V output voltage, synchronous boost converter with integrated LDO/load switch For applications requiring ultra-low Iq or smaller package.

Technical documentation

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Type Title Date
* Datasheet TLV61225 Single-Cell High-Efficient Step-Up Converter in 6-Pin SC-70 Package datasheet (Rev. A) May 21, 2015
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017

Design & development

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Reference designs

REFERENCE DESIGNS Download
Low-Cost, Flexible Voltage Supervisor and Battery Tester Reference Design
TIDA-00670 This is a low-cost, flexible voltage supervisor that uses a voltage reference in order to test the voltage of a battery. This solution can also be used as a voltage rail monitor for many applications that require accurate power delivery with multiple rails. With TI's ultra-low power voltage (...)
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CAD/CAE symbols

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SC70 (DCK) 6 View options

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