SNVSAF7C August   2016  – October 2025 LM27762

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Undervoltage Lockout
      2. 6.3.2 Input Current Limit
      3. 6.3.3 PFM Operation
      4. 6.3.4 Output Discharge
      5. 6.3.5 Power-Good Output (PGOOD)
      6. 6.3.6 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Shutdown Mode
      2. 6.4.2 Enable Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Positive Low-Dropout Linear Regulator and OUT+ Voltage Setting
        2. 7.2.2.2 Charge-Pump Voltage Inverter
        3. 7.2.2.3 Negative Low-Dropout Linear Regulator and OUT– Voltage Setting
        4. 7.2.2.4 External Capacitor Selection
          1. 7.2.2.4.1 Charge-Pump Output Capacitor
          2. 7.2.2.4.2 Input Capacitor
          3. 7.2.2.4.3 Flying Capacitor
          4. 7.2.2.4.4 LDO Output Capacitor
        5. 7.2.2.5 Power Dissipation
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
7.2.2.4.4 LDO Output Capacitor

The LDO output capacitor (COUT+, COUT-) value and the ESR affect stability, output ripple, output noise, PSRR and transient response. The LM27762 only requires the use of a 2.2-µF ceramic output capacitor for stable operation. For typical applications, a 2.2-µF ceramic output capacitor located close to the output is sufficient.