SLVSDD1G December   2017  – June 2024 TPS62800 , TPS62801 , TPS62802 , TPS62806 , TPS62807 , TPS62808

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Smart Enable and Shutdown (EN)
      2. 7.3.2 Soft Start
      3. 7.3.3 VSEL/MODE Pin
        1. 7.3.3.1 Output Voltage Selection (R2D Converter)
        2. 7.3.3.2 Mode Selection — Power Save Mode and Forced PWM Operation
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Switch Current Limit and Short Circuit Protection
      6. 7.3.6 Thermal Shutdown
      7. 7.3.7 Output Voltage Discharge
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Save Mode Operation
      2. 7.4.2 Forced PWM Mode Operation
      3. 7.4.3 100% Mode Operation
      4. 7.4.4 Optimized Transient Performance from PWM-to-PFM Mode Operation
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Inductor Selection
        3. 8.2.2.3 Output Capacitor Selection
        4. 8.2.2.4 Input Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
      2. 9.1.2 Development Support
        1. 9.1.2.1 Custom Design With WEBENCH® Tools
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Mechanical Data

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YKA|6
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.2.2 Inductor Selection

The inductor value affects the peak-to-peak ripple current, the PWM-to-PFM transition point, the output voltage ripple, and the efficiency. The selected inductor has to be rated for the DC resistance and saturation current. The inductor ripple current (ΔIL) decreases with higher inductance and increases with higher VIN or VOUT and can be estimated according to Equation 1.

Equation 2 calculates the maximum inductor current under static load conditions. The saturation current of the inductor must be rated higher than the maximum inductor current, as calculated with Equation 2, which is recommended because during a heavy load transient the inductor current rises above the calculated value. A more conservative way is to select the inductor saturation current according to the high-side MOSFET switch current limit, ILIMF.

Equation 1. TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808
Equation 2. TPS62800 TPS62801 TPS62802 TPS62806 TPS62807 TPS62808

where

  • f = switching frequency
  • L = inductor value
  • ΔIL = peak-to-peak inductor ripple current
  • ILmax = maximum inductor current

Table 8-2 shows a list of possible inductors.

Table 8-2 List of Possible Inductors
Inductance [µH] Inductor Series Size Imperial (Metric) Dimensions L × W × T Supplier(1)
0.47 DFE18SAN_G0 0603 (1608) 1.6 mm × 0.8 mm × 1.0 mm maximum Murata
0.47 HTEB16080F 0603 (1608) 1.6 mm × 0.8 mm × 0.6 mm maximum Cyntec
0.47 HTET1005FE 0402 (1005) 1.0 mm × 0.5 mm × 0.65 mm maximum Cyntec
0.47 TFM160808ALC 0603 (1608) 1.6 mm × 0.8 mm × 0.8 mm maximum TDK
1.0 DFE201610E 0806 (201610) 2.0 mm × 1.6 mm × 1.0 mm maximum Murata
(1) See the Third-party Products Disclaimer.