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  • TPSM82843x 1.8V to 5.5V, 600mA, Ultra-Low 275nA IQ, High Efficiency, Step-Down Converter With Integrated Inductor in a QFN Package

    • SLVSHG7A September   2024  – November 2024 TPSM82843

      PRODUCTION DATA  

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  • TPSM82843x 1.8V to 5.5V, 600mA, Ultra-Low 275nA IQ, High Efficiency, Step-Down Converter With Integrated Inductor in a QFN Package
  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and 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 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Smart Enable and Shutdown (EN)
      2. 7.3.2 Soft Start
      3. 7.3.3 VSET Pin: Output Voltage Selection
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Switch Current Limit, Short-Circuit Protection
      6. 7.3.6 Thermal Shutdown
      7. 7.3.7 Output Voltage Discharge
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Save Mode Operation
      2. 7.4.2 100% Mode Operation
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
  13. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • VCF|7
    • MPQF800
Thermal pad, mechanical data (Package|Pins)
Orderable Information
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Data Sheet

TPSM82843x 1.8V to 5.5V, 600mA, Ultra-Low 275nA IQ, High Efficiency, Step-Down Converter With Integrated Inductor in a QFN Package

1 Features

  • 1.8V to 5.5V input voltage range
  • 0.4V to 3.6V output voltage range
  • 275nA typical quiescent current, 4nA shutdown
  • Zero feedback error from integrated output divider
  • 1.2V logic compliant EN (Enable) pin
  • 600mA output current and output discharge
  • 1% accurate voltage selection with single resistor on VSET-pin
    • TPSM828436: 0.4V to 0.8V
    • TPSM828437: 0.8V to 1.8V
    • TPSM828438: 1.8V to 3.6V
  • Cost and size optimized passive components
    • Down to 4.7μF CIN and COUT
    • 0402 and 0201 capacitors supported
  • Low output voltage ripple in power save mode
  • RF-friendly and fast transient DCS-Control
  • Automatic transition to no ripple 100% mode
  • Small QFN package with 2.45mm × 2.70mm × 1.29mm

2 Applications

  • Bluetooth® low energy BLE (BTLE) remote controls, wireless sensors, beacons
  • IoT Wi-Fi® battery driven nodes
  • Smart meter, heat meter, telemetry
  • Datalogger, predictive maintenance
  • Programmable logic controller (PLC) point of load
  • Wearable electronics
  • Headsets, headphones, and earbuds
  • Hearing aid

 
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