SNVSAZ0A March   2018  – May 2018 LM51501-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Typical Application Circuit
      2.      Efficiency (VLOAD = 9.5 V, FSW = 440 kHz)
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions
  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 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Enable (EN Pin)
      2. 7.3.2  High Voltage VCC Regulator (PVCC, AVCC Pin)
      3. 7.3.3  Power-On Voltage Selection (VSET Pin)
      4. 7.3.4  Switching Frequency (RT Pin)
      5. 7.3.5  Clock Synchronization (SYNC Pin in SS Configuration)
      6. 7.3.6  Current Sense, Slope Compensation, and PWM (CS Pin)
      7. 7.3.7  Current Limit (CS Pin)
      8. 7.3.8  Feedback and Error Amplifier (COMP Pin)
      9. 7.3.9  Automatic Wake-Up and Standby
      10. 7.3.10 Boost Status Indicator (STATUS Pin)
      11. 7.3.11 Maximum Duty Cycle Limit and Minimum Input Supply Voltage
      12. 7.3.12 MOSFET Driver (LO Pin)
      13. 7.3.13 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Standby Mode
      3. 7.4.3 Wake-Up Mode
        1. 7.4.3.1 Start-Stop Configuration (SS Configuration)
        2. 7.4.3.2 Emergency-Call Configuration (EC Configuration)
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Bypass Switch / Disconnection Switch Control
      2. 8.1.2 Loop Response
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Custom Design With WEBENCH® Tools
        2. 8.2.2.2  RSET Resistor
        3. 8.2.2.3  RT Resistor
        4. 8.2.2.4  Inductor Selection (LM)
        5. 8.2.2.5  Current Sense (RS)
        6. 8.2.2.6  Slope Compensation Ramp (RSL)
        7. 8.2.2.7  Output Capacitor (COUT)
        8. 8.2.2.8  Loop Compensation Component Selection and Maximum ESR
        9. 8.2.2.9  PVCC Capacitor, AVCC Capacitor, and AVCC Resistor
        10. 8.2.2.10 VOUT Filter (CVOUT, RVOUT)
        11. 8.2.2.11 Input Capacitor
        12. 8.2.2.12 MOSFET Selection
        13. 8.2.2.13 Diode Selection
        14. 8.2.2.14 Efficiency Estimation
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
      1. 8.3.1 Lower Standby Threshold in SS Configuration
      2. 8.3.2 Dithering Using Dither Enabled Device
      3. 8.3.3 Clock Synchronization With LM5140
      4. 8.3.4 Dynamic Frequency Change
      5. 8.3.5 Dithering Using an External Clock
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Development Support
      1. 11.1.1 Custom Design With WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RUM|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Features

  • AEC-Q100 Qualified:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Wide VIN Input Range From 1.5 V to 42 V When VOUT ≥ 5 V (65-V Absolute Maximum)
  • Low Shutdown Current (IQ ≤ 5 µA)
  • Low Standby Current (IQ ≤ 15 µA)
  • Four Programmable Output Voltage Options and Two Selectable Configurations
    • 6.0 V, 6.5 V, 9.5 V, or 11.5 V
    • Start-Stop or E-Call Configurations
  • Adjustable Switching Frequency From 220 kHz to 2.3 MHz
  • Automatic Wake-Up and Standby Mode Transition
  • Optional Clock Synchronization
  • Boost Status Indicator
  • 1.5-A Peak MOSFET Gate Driver
  • Adjustable Cycle-by-Cycle Current Limit
  • Thermal Shutdown
  • 16-Pin WQFN With Wettable Flanks
  • Create a Custom Design Using the LM51501-Q1 With the WEBENCH® Power Designer