SLVSFS7A March   2021  – January 2024 TPS62901

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
    6. 5.6 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 Mode Selection and Device Configuration MODE/S-CONF
      2. 6.3.2 Adjustable VO Operation (External Voltage Divider)
      3. 6.3.3 Setable VO Operation (VSET and Internal Voltage Divider)
      4. 6.3.4 Soft Start / Tracking (SS/TR)
      5. 6.3.5 Smart Enable with Precise Threshold
      6. 6.3.6 Power Good (PG)
      7. 6.3.7 Undervoltage Lockout (UVLO)
      8. 6.3.8 Current Limit And Short-Circuit Protection
      9. 6.3.9 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Pulse Width Modulation (PWM) Operation
      2. 6.4.2 AEE (Automatic Efficiency Enhancement)
      3. 6.4.3 Power Save Mode Operation (Auto PFM/PWM)
      4. 6.4.4 100% Duty-Cycle Operation
      5. 6.4.5 Output Discharge Function
      6. 6.4.6 Starting into a Prebiased Load
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application with Adjustable Output Voltage
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 Programming the Output Voltage
        3. 7.2.2.3 External Component Selection
        4. 7.2.2.4 Inductor Selection
        5. 7.2.2.5 Capacitor Selection
          1. 7.2.2.5.1 Output Capacitor
          2. 7.2.2.5.2 Input Capacitor
          3. 7.2.2.5.3 Soft-Start Capacitor
        6. 7.2.2.6 Tracking Function
        7. 7.2.2.7 Output Filter and Loop Stability
      3. 7.2.3 Application Curves
      4. 7.2.4 Typical Application with Setable VO using VSET
        1. 7.2.4.1 Design Requirements
        2. 7.2.4.2 Detailed Design Procedure
        3. 7.2.4.3 Application Curves
    3. 7.3 System Examples
      1. 7.3.1 LED Power Supply
      2. 7.3.2 Powering Multiple Loads
      3. 7.3.3 Voltage Tracking
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
        1. 7.5.2.1 Thermal Considerations
  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 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • RPJ|9
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.2.1 Design Requirements

Table 7-1 List of Components
REFERENCEDESCRIPTIONMANUFACTURER
IC 17V, 3A Step-Down Converter TPS6290x series; Texas Instruments
L 1µH inductor XGL4020-102; Coilcraft
CIN 10µF, 25V, Ceramic, 0805 C3216X7R1E106M160AE, TDK
COUT 22µF, 16V, Ceramic, 0805 C2012X7S1A226M125AC, TDK
CSS Depends on soft start time; see Section 7.2.2.5.3 16V, Ceramic, X7R
R1Depending on VOUT; see Section 7.2.2.2Standard 1% metal film
R2Depending on VOUT; see Section 7.2.2.2Standard 1% metal film
R3 Depending on device setting, see Section 6.3.1 Standard 1% metal film