SLVSET0E May   2020  – October 2024 TPS61378-Q1

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  VCC Power Supply
      2. 7.3.2  Input Undervoltage Lockout (UVLO)
      3. 7.3.3  Enable and Soft Start
      4. 7.3.4  Shut Down
      5. 7.3.5  Switching Frequency Setting
      6. 7.3.6  Spread Spectrum Frequency Modulation
      7. 7.3.7  Adjustable Peak Current Limit
      8. 7.3.8  Bootstrap
      9. 7.3.9  Load Disconnect
      10. 7.3.10 MODE/SYNC Configuration
      11. 7.3.11 Overvoltage Protection (OVP)
      12. 7.3.12 Output Short Protection/Hiccup
      13. 7.3.13 Power-Good Indicator
      14. 7.3.14 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Forced PWM Mode
      2. 7.4.2 Auto PFM Mode
      3. 7.4.3 External Clock Synchronization
      4. 7.4.4 Down Mode
  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 Programming the Output Voltage
        2. 8.2.2.2 Setting the Switching Frequency
        3. 8.2.2.3 Setting the Current Limit
        4. 8.2.2.4 Selecting the Inductor
        5. 8.2.2.5 Selecting the Output Capacitors
        6. 8.2.2.6 Selecting the Input Capacitors
        7. 8.2.2.7 Loop Stability and Compensation
          1. 8.2.2.7.1 Small Signal Model
          2. 8.2.2.7.2 Loop Compensation Design Steps
          3. 8.2.2.7.3 Selecting the Bootstrap Capacitor
          4. 8.2.2.7.4 VCC Capacitor
      3. 8.2.3 Application Curves
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Glossary
    6. 11.6 Electrostatic Discharge Caution
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

Package Options

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

6.6 Typical Characteristics

VIN = 3.3 V, VOUT = 9 V (VO pin), TA = 25°C, Fsw = 2.2 MHz, unless otherwise noted.
TPS61378-Q1 5 VOUT Efficiency vs Output Current
VOUT = 5 V Auto PFM Fsw = 2.2 MHz
Figure 6-1 5 VOUT Efficiency vs Output Current
TPS61378-Q1 9 VOUT Efficiency vs Output Current
VOUT = 9 V Auto PFM Fsw = 2.2 MHz
Figure 6-3 9 VOUT Efficiency vs Output Current
TPS61378-Q1 9 VOUT Regulation vs Output Current
VOUT = 9 V PFM Fsw = 2.2 MHz
Figure 6-5 9 VOUT Regulation vs Output Current
TPS61378-Q1 Shutdown Current vs Input VoltageFigure 6-7 Shutdown Current vs Input Voltage
TPS61378-Q1 Reference Voltage vs TemperatureFigure 6-9 Reference Voltage vs Temperature
TPS61378-Q1 Switching Frequency vs Setting ResistanceFigure 6-11 Switching Frequency vs Setting Resistance
TPS61378-Q1 EN Threshold Voltage vs TemperatureFigure 6-13 EN Threshold Voltage vs Temperature
TPS61378-Q1 RDSON vs TemperatureFigure 6-15 RDSON vs Temperature
TPS61378-Q1 5 VOUT Efficiency vs Output Current
VOUT = 5 V FPWM Fsw = 2.2 MHz
Figure 6-2 5 VOUT Efficiency vs Output Current
TPS61378-Q1 9 VOUT Efficiency vs Output Current
VOUT = 9 V FPWM Fsw = 2.2 MHz
Figure 6-4 9 VOUT Efficiency vs Output Current
TPS61378-Q1 Quiescent Current into VIN vs Input VoltageFigure 6-6 Quiescent Current into VIN vs Input Voltage
TPS61378-Q1 Fixed Output Voltage vs TemperatureFigure 6-8 Fixed Output Voltage vs Temperature
TPS61378-Q1 Current Limit vs Setting ResistanceFigure 6-10 Current Limit vs Setting Resistance
TPS61378-Q1 VIN UVLO Threshold Voltage vs TemperatureFigure 6-12 VIN UVLO Threshold Voltage vs Temperature
TPS61378-Q1 PG Delay Time vs TemperatureFigure 6-14 PG Delay Time vs Temperature
TPS61378-Q1 Duty Cycle vs Current LimitFigure 6-16 Duty Cycle vs Current Limit