SNVS115E April   2000  – June 2019 LM2587

PRODUCTION DATA.  

  1. Features
  2. Typical Applications
  3. Description
    1.     Device Images
      1.      Flyback Regulator
  4. Revision History
  5. Pin Configurations
  6. Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESDRatings
    3. 6.3  Recommended Operating Ratings
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: 3.3 V
    6. 6.6  Electrical Characteristics: 5 V
    7. 6.7  Electrical Characteristics: 12 V
    8. 6.8  Electrical Characteristics: Adjustable
    9. 6.9  Electrical Characteristics: All Output Voltage Versions
    10. 6.10 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Step-Up (Boost) Regulator Operation
  8. Application And Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Boost Regulator Applications
      2. 8.2.2 Typical Flyback Regulator Applications
        1. 8.2.2.1 Transformer Selection (T)
        2. 8.2.2.2 Transformer Footprints
          1. 8.2.2.2.0.1 T4
      3. 8.2.3 Design Requirements
      4. 8.2.4 Detailed Design Procedure
        1. 8.2.4.1 Custom Design With Webench® Tools
        2. 8.2.4.2 Programming Output Voltage (Selecting R1 And R2)
        3. 8.2.4.3 Short Circuit Condition
        4. 8.2.4.4 Flyback Regulator Input Capacitors
        5. 8.2.4.5 Switch Voltage Limits
        6. 8.2.4.6 Output Voltage Limitations
        7. 8.2.4.7 Noisy Input Line Condition)
        8. 8.2.4.8 Stability
    3. 8.3 Additional Application Examples
      1. 8.3.1 Test Circuits
  9. Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
    3. 9.3 Heat Sink/Thermal Considerations
      1. 9.3.1 European Magnetic Vendor Contacts
      2. 9.3.2 Coilcraft
      3. 9.3.3 Pulse Engineering
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
      2. 10.1.2 Development Support
        1. 10.1.2.1 Custom Design With Webench® Tools
    2. 10.2 Receiving Notification Of Documentation Updates
    3. 10.3 Community Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

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

Transformer Footprints

through Figure 58 show the footprints of each transformer, listed in .

LM2587 1231630.pngFigure 28. Coilcraft Q4434-B (Top View)
LM2587 1231632.pngFigure 30. Coilcraft Q4343-B (Top View)
LM2587 1231634.pngFigure 32. Coilcraft Q4435-B (Surface Mount) (Top View)
LM2587 1231636.pngFigure 34. Pulse PE-68411 (Surface Mount) (Top View)
LM2587 1231638.pngFigure 36. Pulse PE-68421 (Surface Mount) (Top View)
LM2587 1231640.pngFigure 38. Renco RL-5530 (Top View)
LM2587 1231646.pngFigure 40. Renco RL-5534 (Top View)
LM2587 1231643.pngFigure 42. Schott 67141450 (Top View)
LM2587 1231645.pngFigure 44. Schott 67140920 (Top View)
LM2587 1251532.png
Figure 46. Coilcraft Q4437-B (Top View)
(Surface Mount)
LM2587 1251534.png
Figure 48. Coilcraft S6057-A (Top View)
(Surface Mount)
LM2587 1251536.png
Figure 50. Pulse Pe-68482 (Top View)
LM2587 1251539.png
Figure 52. Pulse Pe-68413 (Top View)
(Surface Mount)
LM2587 1251542.png
Figure 54. Renco Rl-5533
(Top View)
LM2587 1251544.png
Figure 56. Schott 26606 (Top View)
LM2587 1251547.png
Figure 58. Schott 67140890
(Top View)
LM2587 1231631.pngFigure 29. Coilcraft Q4337-B (Top View)
LM2587 1231633.pngFigure 31. Coilcraft Q4344-B (Top View)
LM2587 1231635.pngFigure 33. Coilcraft Q4436-B (Surface Mount) (Top View)
LM2587 1231637.pngFigure 35. Pulse PE-68412 (Surface Mount) (Top View)
LM2587 1231639.pngFigure 37. Pulse PE-68422 (Surface Mount) (Top View)
LM2587 1231641.pngFigure 39. Renco RL-5531 (Top View)

T4

LM2587 1231642.pngFigure 41. Renco RL-5535 (Top View)
LM2587 1231644.pngFigure 43. Schott 67140860 (Top View)
LM2587 1231647.pngFigure 45. Schott 67140930 (Top View)
LM2587 1251533.png
Figure 47. Coilcraft Q4338-B
(Top View)
LM2587 1251535.png
Figure 49. Coilcraft Q4438-B (Top View)
(Surface Mount)
LM2587 1251537.png
Figure 51. Pulse Pe-68414 (Top View)
(Surface Mount)
LM2587 1251540.png
Figure 53. Renco Rl-5751 (Top View)
LM2587 1251543.png
Figure 55. Renco Rl-5532 (Top View)
LM2587 1251546.png
Figure 57. Schott 67140900 (Top View)