SNVSB48C April   2018  – October 2019 LMR36006

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 System Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power-Good Flag Output
      2. 8.3.2 Enable and Start-up
      3. 8.3.3 Current Limit and Short Circuit
      4. 8.3.4 Undervoltage Lockout and Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Auto Mode
      2. 8.4.2 Dropout
      3. 8.4.3 Minimum Switch On-Time
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design 1: Low Power 24-V, 600-mA PFM Converter
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1  Custom Design With WEBENCH Tools
          2. 9.2.1.2.2  Choosing the Switching Frequency
          3. 9.2.1.2.3  Setting the Output Voltage
          4. 9.2.1.2.4  Inductor Selection
          5. 9.2.1.2.5  Output Capacitor Selection
          6. 9.2.1.2.6  Input Capacitor Selection
          7. 9.2.1.2.7  CBOOT
          8. 9.2.1.2.8  VCC
          9. 9.2.1.2.9  CFF Selection
            1. 9.2.1.2.9.1 External UVLO
          10. 9.2.1.2.10 Maximum Ambient Temperature
      2. 9.2.2 Application Curves
      3. 9.2.3 Design 2: High Density 24-V, 600-mA PFM Converter
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Application Curves
    3. 9.3 What to Do and What Not to Do
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Ground and Thermal Considerations
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
        1. 12.1.1.1 Custom Design With WEBENCH® Tools
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

9.2.3.2 Application Curves

Unless otherwise specified the following conditions apply: VIN = 24 V, TA = 25°C. The circuit is shown in Figure 18, with the appropriate BOM from Table 5.

LMR36006 LMR36006C-5vout-efficiency-snvsb48.gif
VOUT = 5 V 2100 kHz
Figure 43. Efficiency
LMR36006 LMR36006C-5vout-load-reg-snvsb48-rtm.gif
VOUT = 5 V 2100 kHz
Figure 45. Load Regulation
LMR36006 LMR36006C-5vout-line-reg-snvsb48.gif
VOUT = 5 V 2100 kHz
Figure 47. Line Regulation
LMR36006 LMR36006C-5vout-dropout-snvsb48.gif
VOUT = 5 V 2100 kHz
Figure 49. Overall Dropout Characteristic
LMR36006 waveform-04-LMR36006C-24vin-3p3vout-su-snvsb48.jpg
VOUT = 3.3 V 2100 kHz
Figure 51. Start-Up Waveform
LMR36006 waveform-05-LMR36006C-24vin-lt-300ma-3p3vout-snvsb48.jpg
VOUT = 3.3 V 2100 kHz ILOAD= 10 mA - 0.3 A
Slew Rate = 1 µs/A
Figure 53. Load Transient
LMR36006 waveform-06-LMR36006C-24vin-lt-600ma-3p3vout-snvsb48.jpg
VOUT = 3.3 V 2100 kHz ILOAD= 10 mA - 0.6 A
Slew Rate = 1 µs/A
Figure 55. Load Transient
LMR36006 LMR36006C-3p3vout-efficiency-snvsb48-rtm.gif
VOUT = 3.3 V 2100 kHz
Figure 44. Efficiency
LMR36006 LMR36006C-3p3vout-load-reg-snvsb48.gif
VOUT = 3.3 V 2100 kHz
Figure 46. Load Regulation
LMR36006 LMR36006C-5vout-foldback-snvsb48.gif
VOUT = 5 V 2100 kHz
Figure 48. Switching Frequency vs Input Voltage
LMR36006 waveform-07-LMR36006C-5vout-24vin-su-snvsb48.jpg
VOUT = 5 V 2100 kHz
Figure 50. Start-Up Waveform
LMR36006 waveform-02-LMR36006B-5vout-24vin-lt-300ma-snvsb48.jpg
VOUT = 5 V 2100 kHz ILOAD= 10 mA - 0.3 A
Slew Rate = 1 µs/A
Figure 52. Load Transient
LMR36006 waveform-08-LMR36006C-24vin-lt-600ma-5vout-snvsb48.jpg
VOUT = 5 V 2100 kHz ILOAD= 10 mA - 0.6 A
Slew Rate = 1 µs/A
Figure 54. Load Transient