SLVSDD3A March   2016  – January 2017 TLV62095

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommend 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 PWM Operation
      2. 7.3.2 Power Save Mode Operation
      3. 7.3.3 Low Dropout Operation (100% Duty Cycle)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable (EN)
      2. 7.4.2 Soft Startup (SS) and Hiccup Current Limit During Startup
      3. 7.4.3 Voltage Tracking (SS)
      4. 7.4.4 Short Circuit Protection (Hiccup-Mode)
      5. 7.4.5 Output Discharge Function
      6. 7.4.6 Power Good Output
      7. 7.4.7 Undervoltage Lockout
      8. 7.4.8 Thermal Shutdown
      9. 7.4.9 Charge Pump (CP, CN)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 1.8-V Output Converter
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Custom Design With WEBENCH® Tools
          2. 8.2.1.2.2 Output Filter
          3. 8.2.1.2.3 Inductor Selection
          4. 8.2.1.2.4 Input and Output Capacitor Selection
          5. 8.2.1.2.5 Setting the Output Voltage
        3. 8.2.1.3 Application Performance Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Consideration
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 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

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

10 Layout

10.1 Layout Guidelines

  • It is recommended to place the input capacitor as close as possible to the IC pins PVIN and PGND.
  • The VOS connection is noise sensitive and needs to be routed short and direct to the output terminal of the inductor.
  • The exposed thermal pad of the package, analog ground (pin 6) and power ground (pin 14, 15) should have a single point connection at the exposed thermal pad of the package. This minimizes switch node jitter.
  • The charge pump capacitor connected to CP and CN should be placed close to the IC to minimize coupling of switching waveforms into other traces and circuits.
  • Refer to Figure 23 for an example of component placement, routing and thermal design.

10.2 Layout Example

TLV62095 TLV62095_layout.gif Figure 23. TLV62095 PCB Layout

10.3 Thermal Consideration

Implementation of integrated circuits in low-profile and fine-pitch surface-mount packages typically requires special attention to power dissipation. Many system-dependent issues such as thermal coupling, airflow, added heat sinks and convection surfaces, and the presence of other heat-generating components affect the power-dissipation limits of a given component. The Thermal Information table provides the thermal metric of the device and its package based on JEDEC standard. For more details on how to use the thermal parameters in real applications, see the application notes: SZZA017 and SPRA953.