SNVS129G May   2004  – June 2025 LM2675

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
      1. 5.4.1 Electrical Characteristics – 3.3 V
    5. 5.5  Electrical Characteristics – 5 V
    6. 5.6  Electrical Characteristics – 12 V
    7. 5.7  Electrical Characteristics – Adjustable
    8. 5.8  Electrical Characteristics – All Output Voltage Versions
    9. 5.9  Typical Characteristics
    10. 5.10 Typical Characteristics – Fixed Output Voltage Versions
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Adjustable Output Voltage
    4. 6.4 Device Functional Modes
      1. 6.4.1 Shutdown Mode
      2. 6.4.2 Active Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Fixed Output Voltage Application
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 Custom Design with WEBENCH® Tools
          2. 7.2.1.2.2 Inductor Selection (L1)
          3. 7.2.1.2.3 Output Capacitor Selection (COUT)
          4. 7.2.1.2.4 Catch Diode Selection (D1)
          5. 7.2.1.2.5 Input Capacitor (CIN)
          6. 7.2.1.2.6 Boost Capacitor (CB)
        3. 7.2.1.3 Application Curves
      2. 7.2.2 Adjustable Output Voltage Application
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
          1. 7.2.2.2.1 Programming Output Voltage
          2. 7.2.2.2.2 Inductor Selection (L1)
          3. 7.2.2.2.3 Output Capacitor SeIection (COUT)
          4. 7.2.2.2.4 Catch Diode Selection (D1)
          5. 7.2.2.2.5 Input Capacitor (CIN)
          6. 7.2.2.2.6 Boost Capacitor (CB)
        3. 7.2.2.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 WSON Package Devices
      2. 7.4.2 Layout Examples
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Custom Design with WEBENCH® Tools
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
7.2.1.2.3 Output Capacitor Selection (COUT)

Select an output capacitor from Table 7-3. Using the output voltage and the inductance value found in the inductor selection guide, step 1, locate the appropriate capacitor value and voltage rating. The capacitor list contains through-hole electrolytic capacitors from four different capacitor manufacturers and surface mount tantalum capacitors from two different capacitor manufacturers. TI recommends using both the manufacturers and the manufacturer's series that are listed in the table.

Use the 5-V section in Table 7-3. Choose a capacitor value and voltage rating from the line that contains the inductance value of 33 μH. The capacitance and voltage rating values corresponding to the 33-μH inductor are the surface mount and through hole.

Surface mount:

  • 68-μF, 10-V Sprague 594D series
  • 100-μF, 10-V AVX TPS series

Through hole:

  • 68-μF, 10-V Sanyo OS-CON SA series
  • 220-μF, 35-V Sanyo MV-GX series
  • 220-μF, 35-V Nichicon PL series
  • 220-μF, 35-V Panasonic HFQ series

Table 7-3 Output Capacitor Table
OUTPUT
VOLTAGE
(V)		INDUCTANCE
(μH)		OUTPUT CAPACITOR
SURFACE MOUNTTHROUGH HOLE
SPRAGUE
594D SERIES
(μF/V)		AVX TPS
SERIES
(μF/V)		SANYO OS-CON
SA SERIES
(μF/V)		SANYO MV-GX
SERIES
(μF/V)		NICHICON
PL SERIES
(μF/V)		PANASONIC
HFQ SERIES
(μF/V)
3.322120/6.3100/10100/10330/35330/35330/35
33120/6.3100/1068/10220/35220/35220/35
4768/10100/1068/10150/35150/35150/35
68120/6.3100/10100/10120/35120/35120/35
100120/6.3100/10100/10120/35120/35120/35
150120/6.3100/10100/10120/35120/35120/35
522100/16100/10100/10330/35330/35330/35
3368/101001068/10220/35220/35220/35
4768/10100/1068/10150/35150/35150/35
68100/16100/10100/10120/35120/35120/35
100100/16100/10100/10120/35120/35120/35
150100/16100/10100/10120/35120/35120/35
1222120/20(2×) 68/2068/20330/35330/35330/35
3368/2568/2068/20220/35220/35220/35
4747/2068/2047/20150/35150/35150/35
6847/2068/2047/20120/35120/35120/35
10047/2068/2047/20120/35120/35120/35
15047/2068/2047/20120/35120/35120/35
22047/2068/2047/20120/35120/35120/35