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  • TLV61220A Low-Input Voltage Step-Up Converter in Thin SOT-23 Package

    • SLVSIA2 November   2024 TLV61220A

      PRODUCTION DATA  

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  • TLV61220A Low-Input Voltage Step-Up Converter in Thin SOT-23 Package
  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
    1.     Pin Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Controller Circuit
        1. 8.3.1.1 Startup
        2. 8.3.1.2 Operation at Output Overload
        3. 8.3.1.3 Undervoltage Lockout
        4. 8.3.1.4 Overvoltage Protection
        5. 8.3.1.5 Overtemperature Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device Enable and Shutdown Mode
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Adjustable Output Voltage Version
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Capacitor Selection
          1. 9.2.2.3.1 Input Capacitor
          2. 9.2.2.3.2 Output Capacitor
      3. 9.2.3 Application Curves
  11. 10Power Supply Recommendations
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  13. 12Device and Documentation Support
    1. 12.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  14. 13Revision History
  15.   Mechanical, Packaging, and Orderable Information
  16. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • DBV|6
    • MPDS026Q
Thermal pad, mechanical data (Package|Pins)
Orderable Information
  • SLVSIA2_pm
  • slvsia2_oa
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  • Full reading width
    • Full reading width
    • Comfortable reading width
    • Expanded reading width
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Data Sheet

TLV61220A Low-Input Voltage Step-Up Converter in Thin SOT-23 Package

1 Features

  • Up to 95% Efficiency at Typical Operating Conditions
  • 5.5μA Quiescent Current
  • Startup Into Load at 0.7-V Input Voltage
  • Operating Input Voltage from 0.7V to 5.5V
  • Pass-Through Function during Shutdown
  • Minimum Switching Current 200mA
  • Protections:
    • Output Overvoltage
    • Overtemperature
    • Input Undervoltage Lockout
  • Adjustable Output Voltage from 1.8V to 5.5V
  • Small 6-pin Thin SOT-23 Package

2 Applications

  • Battery Powered Applications
    • 1 to 3 Cell Alkaline, NiCd or NiMH
    • 1 Cell Li-Ion or Li-Primary
  • Solar or Fuel Cell Powered Applications
  • Consumer and Portable Medical Products
  • Personal Care Products
  • White or Status LEDs
  • Smartphones

3 Description

The TLV61220A 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).

Package Information
PART NUMBERPACKAGE (1)BODY SIZE (NOM)
TLV61220ASOT (6)2.90mm x 1.60mm
(1) For all available packages, see the orderable addendum at the end of the datasheet.
TLV61220A Typical application Figure 3-1 Typical application

 
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