SNVSBO7B July   2020  – May 2025 LM63610-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  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 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 System Characteristics
    9. 6.9 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 SYNC/MODE Selection
      2. 7.3.2 Output Voltage Selection
      3. 7.3.3 Switching Frequency Selection
        1. 7.3.3.1 Spread Spectrum Option
      4. 7.3.4 Enable and Start-up
      5. 7.3.5 RESET Flag Output
      6. 7.3.6 Undervoltage Lockout and Thermal Shutdown and Output Discharge
    4. 7.4 Device Functional Modes
      1. 7.4.1 Overview
      2. 7.4.2 Light Load Operation
        1. 7.4.2.1 Sync/FPWM Operation
      3. 7.4.3 Dropout Operation
      4. 7.4.4 Minimum On-time Operation
      5. 7.4.5 Current Limit and Short-Circuit Operation
  9. 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 Choosing the Switching Frequency
        2. 8.2.2.2 Setting the Output Voltage
          1. 8.2.2.2.1 CFF Selection
        3. 8.2.2.3 Inductor Selection
        4. 8.2.2.4 Output Capacitor Selection
        5. 8.2.2.5 Input Capacitor Selection
        6. 8.2.2.6 CBOOT
        7. 8.2.2.7 VCC
        8. 8.2.2.8 External UVLO
        9. 8.2.2.9 Maximum Ambient Temperature
      3. 8.2.3 Application Curves
      4. 8.2.4 EMI Performance Curves
    3. 8.3 Best Design Practices
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
        1. 8.5.1.1 Ground and Thermal Considerations
      2. 8.5.2 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. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.3 Application Curves

Unless otherwise specified, the following conditions apply: VIN = 13.5V, TA = 25°C. Figure 8-23 shows the circuit with the appropriate BOM from Table 8-3.

LM63610-Q1 Efficiency
LM63610 VOUT = 5V fSW = 400kHz (AUTO)
Figure 8-5 Efficiency
LM63610-Q1 Efficiency
LM63610 VOUT = 3.3V fSW = 400kHz (AUTO)
Figure 8-7 Efficiency
LM63610-Q1 Line and Load Regulation
LM63610 VOUT = 5V fSW = 2100kHz (AUTO)
Figure 8-9 Line and Load Regulation
LM63610-Q1 Switching Frequency versus Output Current
LM63610 VIN = 13.5V fSW = 2100kHz (AUTO)
Figure 8-11 Switching Frequency versus Output Current
LM63610-Q1 Switching Frequency versus Input Voltage
LM63610 VOUT = 5V fSW = 2100kHz (FPWM)
Figure 8-13 Switching Frequency versus Input Voltage
LM63610-Q1 Load Transient
LM63610 VOUT = 5V fSW = 2100kHz
0A to 1.5A, 2µs FPWM
Figure 8-15 Load Transient
LM63610-Q1 Load Transient
LM63610 VOUT = 5V fSW = 2100kHz
0.5A to 1.5A, 2µs AUTO
Figure 8-17 Load Transient
LM63610-Q1 Dropout Voltage versus Output Current to 1.85MHz
LM63610 fSW = 1850kHz (AUTO)
Figure 8-19 Dropout Voltage versus Output Current to 1.85MHz
LM63610-Q1 Input Supply Current versus Output Current
LM63610 VOUT = 5V fSW = 2100kHz (AUTO)
Figure 8-21 Input Supply Current versus Output Current
LM63610-Q1 Efficiency
LM63610 VOUT = 5V fSW = 2100kHz (AUTO)
Figure 8-6 Efficiency
LM63610-Q1 Efficiency
LM63610 VOUT = 3.3V fSW = 2100kHz (AUTO)
Figure 8-8 Efficiency
LM63610-Q1 Line and Load Regulation
A.
LM63610 VOUT = 3.3V fSW = 2100kHz (AUTO)
Figure 8-10 Line and Load Regulation
LM63610-Q1 Switching Frequency versus Input Voltage
LM63610 VOUT = 3.3V fSW = 2100kHz (FPWM)
Figure 8-12 Switching Frequency versus Input Voltage
LM63610-Q1 Load Transient
LM63610 VOUT = 3.3V fSW = 2100kHz
0A to 1.5A, 2µs FPWM
Figure 8-14 Load Transient
LM63610-Q1 Load Transient
LM63610 VOUT = 3.3V fSW = 2100kHz
0.5A to 1.5A, 2µs AUTO
Figure 8-16 Load Transient
LM63610-Q1 Dropout Voltage versus Output Current for –1% Drop
LM63610 fSW = 140kHz (AUTO)
Figure 8-18 Dropout Voltage versus Output Current for –1% Drop
LM63610-Q1 Input Supply Current versus Input Voltage
LM63610 IOUT = 0A fSW = 2100kHz (AUTO)
Figure 8-20 Input Supply Current versus Input Voltage
LM63610-Q1 Input Supply Current versus Output Current
LM63610 VOUT = 3.3V fSW = 2100kHz (AUTO)
Figure 8-22 Input Supply Current versus Output Current
LM63610-Q1 Circuit for Typical Application Curves Figure 8-23 Circuit for Typical Application Curves
Table 8-3 BOM for Typical Application Curves
VOUT(1) FREQUENCY OUTPUT CURRENT COUT L
3.3V 400kHz 1A 2 × 22µF 10µH, 40mΩ
3.3V 2100kHz 1A 1 × 10µF 4.7µH, 30mΩ
5V 400kHz 1A 2 × 22µF 10µH, 40mΩ
5V 2100kHz 1A 1 × 10µF 4.7µH, 30mΩ
(1) The values in this table were selected to enhance certain performance criteria and can not represent typical values.