SNVS031N April   2000  – June 2025 LM2676

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
    5. 5.5  Electrical Characteristics: LM2676 – 3.3 V
    6. 5.6  Electrical Characteristics: LM2676 – 5 V
    7. 5.7  Electrical Characteristics: LM2676 – 12 V
    8. 5.8  Electrical Characteristics: LM2676 – Adjustable
    9. 5.9  Electrical Characteristics – All Output Voltage Versions
    10. 5.10 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Switch Output
      2. 6.3.2 Input
      3. 6.3.3 C Boost
      4. 6.3.4 Ground
      5. 6.3.5 Feedback
      6. 6.3.6 ON/OFF
    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
      1. 7.1.1 Design Considerations
      2. 7.1.2 Inductor
      3. 7.1.3 Output Capacitor
      4. 7.1.4 Input Capacitor
      5. 7.1.5 Catch Diode
      6. 7.1.6 Boost Capacitor
      7. 7.1.7 Additional Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Typical Application for All Output Voltage Versions
        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 Capacitor Selection Guides
          3. 7.2.1.2.3 Inductor Selection Guides
      2. 7.2.2 Application Curves
      3. 7.2.3 Fixed Output Voltage Application
        1. 7.2.3.1 Design Requirements
        2. 7.2.3.2 Detailed Design Procedure
          1. 7.2.3.2.1 Capacitor Selection
      4. 7.2.4 Adjustable Output Voltage Application
        1. 7.2.4.1 Design Requirements
        2. 7.2.4.2 Detailed Design Procedure
          1. 7.2.4.2.1 Capacitor Selection
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  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
    1. 10.1 DAP (VSON Package)

5.9 Electrical Characteristics – All Output Voltage Versions

Specifications are for TA = TJ = 25°C unless otherwise specified. Unless otherwise specified VIN = 12 V for the 3.3-V, 5-V, and Adjustable versions and VIN = 24 V for the 12-V version.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
DEVICE PARAMETERS
IQQuiescent currentVFEEDBACK = 8 V for 3.3-V, 5-V, and ADJ versions,
VFEEDBACK = 15 V for 12-V versions		4.26mA
ISTBYStandby quiescent currentON/ OFF pin = 0 V50100µA
over the entire junction temperature range of operation –40°C to 125°C150
ICLCurrent limit3.84.55.25A
over the entire junction temperature range of operation –40°C to 125°C3.65.4
ILOutput leakage currentVIN = 40 V,
soft-start pin = 0 V		VSWITCH = 0V200µA
VSWITCH = –1V1615mA
RDS(ON)Switch ON-resistanceISWITCH = 3 A0.150.17Ω
over the entire junction temperature range of operation –40°C to 125°C0.29
fOOscillator frequencyMeasured at
switch pin		260kHz
over the entire junction temperature range of operation –40°C to 125°C225280
DDuty cycleMaximum duty cycle91%
Minimum duty cycle0%
IBIASFeedback bias
current		VFEEDBACK = 1.3 V
ADJ version only		85nA
VON/OFFON/OFF threshold voltage1.4V
over the entire junction temperature range of operation –40°C to 125°C0.82
ION/OFFON/OFF input currentON/ OFF pin = 0 V20µA
over the entire junction temperature range of operation –40°C to 125°C45