SLVSAH5E December   2010  – May 2019 TPS57114-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Efficiency Curve
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions
  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
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Fixed-Frequency PWM Control
      2. 7.3.2 Slope Compensation and Output Current
      3. 7.3.3 Bootstrap Voltage (BOOT) and Low-Dropout Operation
        1. 7.3.3.1 Error Amplifier
      4. 7.3.4 Voltage Reference
    4. 7.4 Device Functional Modes
      1. 7.4.1  Adjusting the Output Voltage
      2. 7.4.2  Enable Functionality and Adjusting Undervoltage Lockout
      3. 7.4.3  Slow-Start or Tracking Pin
      4. 7.4.4  Sequencing
      5. 7.4.5  Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
      6. 7.4.6  Overcurrent Protection
      7. 7.4.7  Frequency Shift
      8. 7.4.8  Reverse Overcurrent Protection
      9. 7.4.9  Synchronize Using The RT/CLK Pin
      10. 7.4.10 Power Good (PWRGD Pin)
      11. 7.4.11 Overvoltage Transient Protection
      12. 7.4.12 Thermal Shutdown
      13. 7.4.13 Small-Signal Model for Loop Response
      14. 7.4.14 Simple Small-Signal Model for Peak-Current Mode Control
      15. 7.4.15 Small-Signal Model for Frequency Compensation
  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  Selecting the Switching Frequency
        3. 8.2.2.3  Output Inductor Selection
        4. 8.2.2.4  Output Capacitor
        5. 8.2.2.5  Input Capacitor
        6. 8.2.2.6  Slow-Start Capacitor
        7. 8.2.2.7  Bootstrap Capacitor Selection
        8. 8.2.2.8  Output-Voltage And Feedback-Resistor Selection
        9. 8.2.2.9  Compensation
        10. 8.2.2.10 Power-Dissipation Estimate
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  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 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

TPS57114-Q1 radson_tj_slvsah5c.gif
Figure 1. High-Side and Low-Side rDS(on) vs Temperature
TPS57114-Q1 hi_cur_tj_slvsah5c.gif
Figure 3. High-Side Current Limit vs Temperature
TPS57114-Q1 fs_RT_slvsah5c.gif
Figure 5. Switching Frequency vs RT Resistance, Low-Frequency Range
TPS57114-Q1 AE_tj_slvsah5c.gif
V(VIN) = 3.3 V
Figure 7. Transconductance vs Temperature
TPS57114-Q1 thresh_tj_SLVSAH5.gif
Figure 9. EN Pin Voltage vs Temperature
TPS57114-Q1 EN2_pin_tj_slvsah5c.gif
V(VIN) = 5 V V(EN) = Threshold – 50 mV
Figure 11. EN Pin Current vs Temperature
TPS57114-Q1 vi_tj_slvsah5c.gif
Figure 13. Input Voltage vs Temperature
TPS57114-Q1 shutdwn_vi_slvsah5c.gif
TJ = 25ºC
Figure 15. Shutdown Supply Current vs Input Voltage
TPS57114-Q1 Ivin_vi_slvsah5c.gif
TJ = 25ºC
Figure 17. VIN Supply Current vs Input Voltage
TPS57114-Q1 RDSON_tj_slvsah5c.gif
V(VIN) = 5 V
Figure 19. PWRGD On-Resistance vs Temperature
TPS57114-Q1 fs_tj_slvsah5c.gif
RT = 400 kΩ V(VIN) = 5 V
Figure 2. Frequency vs Temperature
TPS57114-Q1 vref_tj_slvsah5c.gif
V(VIN) = 3.3 V
Figure 4. Voltage Reference vs Temperature
TPS57114-Q1 fs_vsense_slvsah5c.gif
Figure 6. Switching Frequency vs V(VSENSE)
TPS57114-Q1 SS_tj_slvsah5c.gif
V(VIN) = 3.3 V
Figure 8. Transconductance (Slow Start) vs Junction Temperature
TPS57114-Q1 EN_pin_tj_slvsah5c.gif
V(VIN) = 5 V V(EN) = Threshold + 50 mV
Figure 10. EN Pin Current vs Temperature
TPS57114-Q1 Iss_tj_slvsah5c.gif
V(VIN) = 5 V
Figure 12. Charge Current vs Temperature
TPS57114-Q1 shutdwn_tj_slvsah5c.gif
V(VIN) = 3.3 V
Figure 14. Shutdown Supply Current vs Temperature
TPS57114-Q1 Ivin_tj_slvsah5c.gif
V(VIN) = 3.3 V
Figure 16. VIN Supply Current vs Junction Temperature
TPS57114-Q1 PWRGD_tj_slvsah5c.gif
V(VIN) = 5 V
Figure 18. PWRGD Threshold vs Temperature
TPS57114-Q1 SSTR_tj_slvsah5c.gif
V(VIN) = 5 V V(SS/TR) = 0.4 V
Figure 20. SS/TR-to-VSENSE Offset vs Temperature