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

4 Pin Configuration and Functions

LM27762 DSS Package,12-Pin WSON With Thermal Pad(Top View) Figure 4-1 DSS Package,12-Pin WSON With Thermal Pad(Top View)
Table 4-1 Pin Functions
PIN TYPE DESCRIPTION
NAME NO.
C1+ 10 Power Positive terminal for C1
C1– 9 Power Negative terminal for C1
CP 5 Power Negative unregulated output voltage
EN+ 12 Input Enable input for the positive LDO, Active high
EN– 8 Input Enable input for the charge pump and negative LDO, Active high
FB+ 2 Power Feedback input. Connect FB+ to an external resistor divider between OUT+ and GND. DO NOT leave unconnected.
FB– 7 Power Feedback input. Connect FB– to an external resistor divider between OUT– and GND. DO NOT leave unconnected.
GND 4 Ground Ground
OUT+ 11 Power Regulated positive output voltage
OUT– 6 Power Regulated negative output voltage
PGOOD 1 Output Power Good flag; open drain; Logic 0 = power good, Logic 1 = power not good. Connect to ground if not used.
VIN 3 Power Positive power supply input
Thermal Pad — Ground Ground. DO NOT leave unconnected.