SBVS292C July   2016  – June 2018

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Circuit (Fixed-Voltage Versions)
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Internal Current Limit
      2. 7.3.2 Shutdown
      3. 7.3.3 Dropout Voltage
      4. 7.3.4 Undervoltage Lockout (UVLO)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation with VIN Less Than 2 V
      2. 7.4.2 Operation with VIN Greater Than 2 V
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input and Output Capacitor Requirements
      2. 8.1.2 Transient Response
      3. 8.1.3 Thermal Protection
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Input Capacitance
        2. 8.2.2.2 Output Capacitance
        3. 8.2.2.3 Thermal Calculation
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Board Layout Recommendations to Improve PSRR and Noise Performance
    3. 10.3 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    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

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

8.2.2.3 Thermal Calculation

Equation 1 shows the thermal calculation.

Equation 1. TLV700xx-Q1 qu1_slvsa61.gif

where

  • PD = continuous power dissipation
  • IOUT = output current
  • VIN = input voltage
  • VOUT = output voltage
  • Because IQ<< IOUT, the term IQ × VIN is always ignored

For a device under operation at a given ambient air temperature (TA), use Equation 2 to calculate the junction temperature (TJ).

Equation 2. TLV700xx-Q1 qu4_slvsa61.gif

where

  • ZθJA = junction-to-ambient air thermal impedance

Use Equation 3 to calculate the rise in junction temperature because of power dissipation.

Equation 3. TLV700xx-Q1 qu2_slvsa61.gif

For a given maximum junction temperature (TJmax), use Equation 4 to calculate the maximum ambient air temperature (TAmax) at which the device can operate.

Equation 4. TLV700xx-Q1 qu3_slvsa61.gif