JAJSLO9D June   2015  – May 2021 LM53600-Q1 , LM53601-Q1

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Device Comparison
  6. 6 Pin Configuration and 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 System Characteristics
    7. 7.7 Timing Requirements
    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 Control Scheme
      2. 8.3.2 Soft-Start Function
      3. 8.3.3 Current Limit
      4. 8.3.4 Hiccup Mode
      5. 8.3.5 RESET Function
      6. 8.3.6 Forced PWM Operation
      7. 8.3.7 Auto Mode Operation and IQ_VIN
      8. 8.3.8 SYNC Operation
      9. 8.3.9 Spread Spectrum
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown
      2. 8.4.2 FPWM Operation
      3. 8.4.3 Auto Mode Operation
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Off-Battery 5-V, 1-A Output Automotive Converter with Spread Spectrum
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Inductor Selection
          2. 9.2.1.2.2 Output Capacitor Selection
          3. 9.2.1.2.3 Input Capacitor Selection
          4. 9.2.1.2.4 FB Voltage Divider for Adjustable Versions
          5. 9.2.1.2.5 RPU - RESET Pull Up Resistor
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Off-Battery 3.3 V, 1 A Output Automotive Converter with Spread Spectrum
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Design Procedure
        3. 9.2.2.3 Application Curves
    3. 9.3 Do's and Don't's
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Ground and Thermal Plane Considerations
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 サポート・リソース
    4. 12.4 Trademarks
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 用語集
  13. 13Mechanical, Packaging, and Orderable Information

7.6 System Characteristics

The following specifications are ensured by design provided that the component values in the typical application circuit are used. These parameters are not ensured by production testing. Limits apply to the recommended operating junction temperature range of –40°C to 150°C, unless otherwise noted. Minimum and Maximum limits are ensured through test, design or statistical correlation. Typical values represent the most likely parametric norm at Tj = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: Vin = 13.5 V.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
Vin_minMinimum input voltage for full functionality at 500-mA load, after start-upVOUT = 3.3 V3.55V
Minimum input voltage for full functionality at 100% of max rated load, after start-upVOUT = 3.3 V3.8V
Vout_3_3VOutput voltage for 3.3-V optionVIN = 4.0 V to 36 V, IOUT = Maximum recommended load current3.233.33.37V
VIN = 3.8 V to 36 V, IOUT=100 µA to 100 mA, typical value in Auto Mode3.233.333.39
Vout_5VOutput voltage for 5-V optionVIN = 5.8 V to 36 V, IOUT = Maximum recommended load current4.955.1V
VIN = 5.5 V to 36 V, IOUT=100 µA to 100 mA, typical value in Auto Mode4.95.055.125
Vout_ADJOutput voltage ADJ optionVIN = VOUT + 0.6 V to 36 V, IOUT = 100 mA, FPWM mode–2%+2%
VIN = VOUT + 0.6 V to 36 V, IOUT=100 µA to 100 mA, Auto mode–2%+2.5%
Load regulation for ADJ option(1)VIN = VOUT + 1 V to 36 V, IOUT = 0 A to 1 A, TJ = 125°C, FPWM mode–1%
IQ_VIN(2)Input current to VIN node of DC/DC utilizing the LM53600-Q1/LM53601-Q1VIN = 13.5 V, VOUT = 3.3 V, IOUT = 0 A23µA
VIN = 13.5 V, VOUT = 5 V, IOUT = 0 A30
VDROP1Minimum input to output voltage differential to maintain regulation accuracy, without inductor DCR dropVOUT=3.3 V, IOUT=1000 mA, +2/–3% output accuracy0.6V
VDROP2Minimum input to output voltage differential to maintain FSW ≥ 1.85 MHz, without inductor DCR dropVOUT = 3.3 V, IOUT=1000 mA, FSW = 1.85 MHz, 2% regulation accuracy2.0V
EfficiencyTypical Efficiency without inductor lossVIN = 13.5 V, VOUT = 5.0 V, IOUT = 1 A85%
VIN = 13.5 V, VOUT = 3.3 V, IOUT = 1 A80%
VIN = 13.5 V, VOUT = 5.0 V, IOUT = 0.65 A86%
VIN = 13.5 V, VOUT = 3.3 V, IOUT = 0.65 A83%
(1) 125°C is worst case temperature for load regulation. Layout is critical since adjustable option does not have an AGND terminal.
(2) See Section 8.3.7 in Section 8 for the meaning of this specification and how it can be calculated.