SNVSBD7B October   2019  – November 2025 LMR36510

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. 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. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power-Good Flag Output
      2. 7.3.2 Enable and Start-Up
      3. 7.3.3 Current Limit and Short Circuit
      4. 7.3.4 Undervoltage Lockout and Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Auto Mode
      2. 7.4.2 Dropout
      3. 7.4.3 Minimum Switch On-Time
  9. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design 1: Low Power 24-V, 1-A Buck Converter
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1  Choosing the Switching Frequency
          2. 8.2.1.2.2  Setting the Output Voltage
          3. 8.2.1.2.3  Inductor Selection
          4. 8.2.1.2.4  Output Capacitor Selection
          5. 8.2.1.2.5  Input Capacitor Selection
          6. 8.2.1.2.6  CBOOT
          7. 8.2.1.2.7  VCC
          8. 8.2.1.2.8  CFF Selection
          9. 8.2.1.2.9  External UVLO
          10. 8.2.1.2.10 Maximum Ambient Temperature
        3. 8.2.1.3 Application 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. Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information

Package Options

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

Electrical Characteristics

Limits apply over operating junction temperature (TJ ) range of –40°C to +125°C, unless otherwise stated. Minimum and Maximum limits(1) are specified 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 = 24 V.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
SUPPLY VOLTAGE (VIN PIN)
IQ-nonSWOperating quiescent current (non-switching)(2)VEN = 3.3 V (PFM variant only)2636µA
ISDShutdown quiescent current; measured at VIN pinVEN = 0 V5.3µA
ENABLE (EN PIN)
VEN-VCC-HEnable input high level for VCC outputVENABLE rising1.14V
VEN-VCC-LEnable input low level for VCC outputVENABLE falling0.3V
VEN-VOUT-HEnable input high level for VOUTVENABLE rising1.1571.2311.3V
VEN-VOUT-HYSEnable input hysteresis for VOUTHysteresis below VENABLE-H; falling110mV
ILKG-ENEnable input leakage currentVEN = 3.3V2.7nA
INTERNAL LDO (VCC PIN)
VCCInternal VCC voltage6 V ≤ VIN ≤ 65 V4.7555.25V
VCC-UVLO-RisingInternal VCC undervoltage lockoutVCC rising3.63.84.0V
VCC-UVLO-FallingInternal VCC undervoltage lockoutVCC falling3.13.33.5V
VOLTAGE REFERENCE (FB PIN)
VFBFeedback voltage0.98511.015V
ILKG-FBFeedback leakage currentFB = 1 V2.1nA
CURRENT LIMITS AND HICCUP
ISCHigh-side current limit(3)1.622.4A
ILS-LIMITLow-side current limit(3)11.31.6A
IL-ZCZero cross detector thresholdPFM variants only0.04A
IPEAK-MINMinimum inductor peak current(3)0.28A
POWER GOOD (PGOOD PIN)
VPG-HIGH-UPPower-Good upper threshold - rising% of FB voltage105%107%110%
VPG-LOW-DNPower-Good lower threshold - falling% of FB voltage90%93%95%
VPG-HYSPower-Good hysteresis (rising & falling)% of FB voltage1.5%
VPG-VALIDMinimum input voltage for proper Power-Good function2V
RPGPower-Good on-resistanceVEN = 2.5 V80165Ω
RPGPower-Good on-resistanceVEN = 0 V3590Ω
MOSFETS
RDS-ON-HSHigh-side MOSFET ON-resistanceIOUT = 0.5 A245465
RDS-ON-LSLow-side MOSFET ON-resistanceIOUT = 0.5 A165310
MIN and MAX limits are 100% production tested at 25℃. Limits over the operating temperature range verified through correlation using
Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL).
This is the current used by the device open loop. This value does not represent the total input current of the system when in regulation.
The current limit values in this table are tested, open loop, in production. The values can differ from those found in a closed loop application.