SNVSA49B january   2015  – june 2023 LV2862

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  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 Continuous Conduction Mode
      2. 7.3.2 Fixed Frequency PWM Control
      3. 7.3.3 Eco-mode
      4. 7.3.4 Bootstrap Voltage (CB)
      5. 7.3.5 Enable (SHDN) and VIN Undervoltage Lockout (UVLO)
      6. 7.3.6 Setting the Output Voltage
      7. 7.3.7 Current Limit
      8. 7.3.8 Thermal Shutdown
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Design Guide – Step By Step Design Procedure
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Selecting the Switching Frequency
        2. 8.2.2.2 Output Inductor Selection
        3. 8.2.2.3 Output Capacitor Selection
        4. 8.2.2.4 Schottky Diode Selection
        5. 8.2.2.5 Input Capacitor Selection
          1. 8.2.2.5.1 Bootstrap Capacitor Selection
            1. 8.2.2.5.1.1 Typical Application Circuits
      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 Documentation Support
      1. 9.1.1 Related Documentation
    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. 10Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.3 Application Curves

Unless otherwise specified the following conditions apply: VIN = 12 V, fSW = 770 kHz, L = 22 µH, COUT = 10 µF, TA = 25°C

GUID-7CFE009E-C677-4E08-BBEB-BF05EBB61B66-low.gif
VOUT = 5 V IOUT = 600 mA
Figure 8-4 Switching Node and Output Voltage Waveform
GUID-5B2E895B-D404-46AB-81A3-A0A78CB09832-low.gif
VIN = 15 V VOUT = 12 V / 600 mA
Figure 8-6 Start-up Waveform
GUID-2C11473B-C3C8-4632-A5A6-5968D506A1F3-low.gif
VIN = 12 V VOUT = 5 V / 600 mA
Figure 8-8 Start-up Waveform
GUID-CC717B47-2E51-4143-87FF-A2CFF1DEB927-low.gif
VIN = 12 V VOUT = 5 V / No Load
Figure 8-10 Eco-mode Operation
GUID-7E4359F3-169F-4CCA-8B36-3EB28C343FED-low.gif
VOUT = 5 V
Figure 8-5 Load Transient Between 0.1 A and 0.6 A
GUID-467A3300-E2FA-413B-BF62-0837B11544AA-low.gif
VIN = 15 V VOUT = 12 V / 600 mA
Figure 8-7 Shutdown Waveform
GUID-55EF325F-F68D-4F75-98EF-9B151C5BE5DF-low.gif
VIN = 12 V VOUT = 5 V / 600 mA
Figure 8-9 Shutdown Waveform