SLUS886B NOVEMBER   2008  – June 2019 TPS40197

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Circuit
  4. 4 Revision History
  5. 5 Description Continued
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Package Dissipation Ratings
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Enable
      2. 8.3.2  Oscillator
      3. 8.3.3  UVLO
      4. 8.3.4  Start-up Sequence and Timing
      5. 8.3.5  Selecting the Short Circuit Current
      6. 8.3.6  Voltage Reference and Dynamic VID
      7. 8.3.7  Minimum On-Time Consideration
      8. 8.3.8  BP Regulator
      9. 8.3.9  Prebias Start-up
      10. 8.3.10 Drivers
      11. 8.3.11 Power Good
      12. 8.3.12 Thermal Shutdown
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Documentation Support
      1. 10.2.1 Related Devices
      2. 10.2.2 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Community Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

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

9.2.1 Design Requirements

Table 3. Design Example List Of Materials

REFERENCE DESIGNATOR QTY DESCRIPTION MFR PART NUMBER
C1, C2, C3 3 Capacitor, ceramic, 16 V, X7R, 20%, 22 μF, 1210 TDK C3225X7R1C226K
C4, C12 2 Capacitor, POSCAP, 2.5 V, 20%, 1 mF, 5 mΩ, D4D Sanyo 2R5TPD1000M5
C5 1 Capacitor, ceramic, 6.3 V, X5R, 20%, 100 μF, 1210 TDK C3225X5R0J107K
C6, C9, C10 3 Capacitor, ceramic, 16 V, X7R, 20%, 1 μF, 0603 Std Std
C7 1 Capacitor, ceramic, 10 V, X5R, 20%, 470 nF, 0603 Std Std
C8 1 Capacitor, ceramic, 50 V, NPO, 10%, 2.2 nF, 0603 Std Std
C11 1 Capacitor, ceramic, 6.3 V, X5R, 20%, 4.7 μF, 0603 TDK C1608X5R0J475K
C13 1 Capacitor, ceramic, 6.3 V, X5R, 20%, 10 μF, 0603 TDK C1608X5R0J106K
C14 1 Capacitor, ceramic, 50 V, NPO, 10%, 15 pF, 0603 Std Std
C15 1 Capacitor, ceramic, 50 V, X7R, 20%, 3.3 nF, 0603 Std Std
C100 1 Capacitor, ceramic, 50 V, X7R, 20%, 4.7 nF, 0603 Std Std
L1 1 Inductor, SMT, 27 A, 1.5 μH, 2.5 mΩ, 0.508 x 0.520 Vishay IHLP5050FDER1R5M01
Q1 1 MOSFET, N-channel, 30 V, 11A, 13.8 mΩ, SO-8 IR IRF7807Z
Q2 1 MOSFET, N-channel, 30 V, 13.6 A, 9.1 mΩ, SO-8 IR IRF7821
R1 1 Resistor, chip, 1/16 W, 5%, 10 kΩ, 0603 Std Std
R2 1 Resistor, chip, 1/16 W, 5%, 1 Ω, 0603 Std Std
R3 1 Resistor, chip, 1/16 W, 1%, 46.4 kΩ, 0603 Std Std
R5 1 Resistor, chip, 1/16 W, 1%, 1.33 kΩ, 0603 Std Std
R6 1 Resistor, chip, 1/16 W, 1%, 23.2 kΩ, 0603 Std Std
R100 1 Resistor, chip, 1/4 W, 5%, 5.6 Ω, 1206 Std Std
U1 1 IC, synchronous buck controller with 4-bit VID interface for Smart-Reflex DSPs, QFN-16 TI TPS40197RGY