SLUSFS6 October   2024 TPS62A04AB , TPS62A04B

PRODUCTION DATA  

  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 Power Save Mode
      2. 7.3.2 100% Duty Cycle Low Dropout Operation
      3. 7.3.3 Soft Start
      4. 7.3.4 Switch Current Limit and Short-Circuit Protection (HICCUP)
      5. 7.3.5 Undervoltage Lockout
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable and Disable
      2. 7.4.2 Power Good
  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
        1. 8.2.2.1 Setting the Output Voltage
        2. 8.2.2.2 Feedforward Capacitor
        3. 8.2.2.3 Output Filter Design
        4. 8.2.2.4 Input and Output Capacitor Selection
      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 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The TPS62A04B and TPS62A04AB are synchronous, step-down, buck, DC/DC converters designed for high efficiency and compact design size. The device uses integrated switches for constantly delivering an output current of 4A. The device operates in pulse width modulation (PWM) mode with 2.2MHz switching frequency at medium to high load. At light load, the TPS62A04B device variant automatically enters a power save mode (PSM) to maintain high efficiency over the entire load current range. The A variant of this device family (TPS62A04AB) stays PWM mode at all times irrespective of the load condition. The device maintains stable frequency and lowest ripple.

The TPS62A04B and TPS62A04AB use an external resistor divider to set the output voltage. The internal soft-start circuit limits the inrush current during start-up, and a power-good signal indicates correct output voltage. Overcurrent protection combined with thermal shutdown protect device and application. The devices are available in an SOT563 package.

Device Information
PART NUMBER(2) MODE PACKAGE(1) BODY SIZE (NOM)
TPS62A04B PSM, PWM DRL (SOT563, 6) 1.60mm × 1.60mm
TPS62A04AB FPWM
(1) For more information, see Section 11.
TPS62A04B TPS62A04AB Typical ApplicationTypical Application
TPS62A04B TPS62A04AB Efficiency Versus Output Current at VIN = 5VEfficiency Versus Output Current at VIN = 5V