SNVS515I September   2007  – January 2018 LM3102

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Schematic
      2.      Efficiency vs Load Current (VOUT = 3.3 V)
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  COT Control Circuit Overview
      2. 7.3.2  Start-Up Regulator (VCC)
      3. 7.3.3  Regulation Comparator
      4. 7.3.4  Zero Coil Current Detect
      5. 7.3.5  Overvoltage Comparator
      6. 7.3.6  Current Limit
      7. 7.3.7  N-Channel MOSFET and Driver
      8. 7.3.8  Soft-Start
      9. 7.3.9  Thermal Protection
      10. 7.3.10 Thermal Derating
    4. 7.4 Device Functional Modes
      1. 7.4.1 ON-Time Timer, Shutdown
  8. 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 Design Steps for the LM3102 Application
        2. 8.2.2.2 External Components
      3. 8.2.3 Application Curve
    3. 8.3 System Examples
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YPA|28
  • PWP|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.6 Typical Characteristics

All curves are taken at VIN = 18 V with the configuration in the typical application circuit for VOUT = 3.3 V shown in this data sheet. TA = 25°C, unless otherwise specified.
LM3102 30021303.png
Figure 1. Quiescent Current, IIN vs VIN
LM3102 30021305.png
Figure 3. VCC vs VIN
LM3102 30021307.png
Figure 5. Switching Frequency, fSW vs VIN
LM3102 30021309.png
Figure 7. RDS(on) vs Temperature
LM3102 30021311.png
Figure 9. VOUT Regulation vs Load Current (VOUT = 3.3 V)
LM3102 30021313.png
Figure 11. VOUT Regulation vs Load Current (VOUT = 0.8 V)
LM3102 30021314.png
Figure 13. Enable Transient (VOUT = 3.3 V, 2.5 A Loaded)
LM3102 30021316.png
Figure 15. Continuous Mode Operation (VOUT = 3.3 V, 2.5 A Loaded)
LM3102 30021318.png
Figure 17. DCM to CCM Transition (VOUT = 3.3 V,
0.15-A - 2.5-A Load)
LM3102 30021354.gif
Figure 19. DSBGA Valley Current Limit VOUT = 5 V at 25°C
LM3102 30021304.png
Figure 2. VCC vs ICC
LM3102 30021306.png
Figure 4. ton vs VIN
LM3102 30021308.png
Figure 6. VFB vs Temperature
LM3102 30021310.png
Figure 8. Efficiency vs Load Current (VOUT = 3.3 V)
LM3102 30021312.png
Figure 10. Efficiency vs Load Current (VOUT = 0.8 V)
LM3102 30021339.png
Figure 12. Power Up (VOUT = 3.3 V, 2.5 A Loaded)
LM3102 30021315.png
Figure 14. Shutdown Transient (VOUT = 3.3 V, 2.5 A Loaded)
LM3102 30021317.png
Figure 16. Discontinuous Mode Operation (VOUT = 3.3 V, 0.025 A Loaded)
LM3102 30021319.png
Figure 18. Load Transient (VOUT = 3.3 V, 0.25-A - 2.5-A Load, Current Slew Rate: 2.5 A/µs)