SBVS411A August   2020  – October 2020 TPS784

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Foldback Current Limit
      2. 7.3.2 Output Enable
      3. 7.3.3 Active Discharge
      4. 7.3.4 Undervoltage Lockout (UVLO) Operation
      5. 7.3.5 Dropout Voltage
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Functional Mode Comparison
      2. 7.4.2 Normal Operation
      3. 7.4.3 Dropout Operation
      4. 7.4.4 Disabled
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Recommended Capacitor Types
      2. 8.1.2 Input and Output Capacitor Requirements
      3. 8.1.3 Output Voltage Setting (Feedback Resistors)
      4. 8.1.4 Load Transient Response
      5. 8.1.5 Exiting Dropout
      6. 8.1.6 Dropout Voltage
      7. 8.1.7 Reverse Current
      8. 8.1.8 Feed-Forward Capacitor (CFF)
      9. 8.1.9 Power Dissipation (PD)
        1. 8.1.9.1 Estimating Junction Temperature
        2. 8.1.9.2 Recommended Area for Continuous Operation
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Additional Layout Considerations
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support 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

6.6 Typical Characteristics

at operating temperature TJ = 25°C, IOUT = 1 mA, VEN = 1.0 V, CIN = 1.0 µF, COUT = 1.0 μF, and VIN = VOUT(NOM) + 0.5 V or 1.65 V (whichever is greater), unless otherwise noted; typical values are at TJ = 25°C

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VOUT = 1.2 V
Figure 6-1 Output Accuracy vs IOUT
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VOUT = 3.3 V
Figure 6-3 Output Accuracy vs VIN
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VOUT = 1.8 V
Figure 6-5 Dropout Voltage vs IOUT
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VOUT = 5.0 V
Figure 6-7 Dropout Voltage vs IOUT
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IOUT = 100 µA
Figure 6-9 IGND vs VIN
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VEN = 0.3 V
Figure 6-11 VIN vs Pulldown Resistor
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VIN = 6 V
Figure 6-13 VEN(HI) and VEV(LO) Threshold vs Temperature
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VOUT = 5.0 V
Figure 6-15 Foldback Current Limit vs IOUT and Temperature
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VOUT = 3.3 V, IOUT = 300 mA, slew rate = 1 V/µs
Figure 6-17 Line Transient
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VIN = 5.5 V, VOUT = 5.0 V, IOUT slew rate = 1 A/µs
Figure 6-19 IOUT Transient From 1 mA to 300 mA
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VIN = 3.8 V, VOUT = 3.3 V, IOUT slew rate = 1 A/µs
Figure 6-21 IOUT Transient From 1 mA to 300 mA
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VIN = 3.8 V, VOUT = 3.3 V, IOUT slew rate = 0.5 A/µs
Figure 6-23 IOUT Transient From 1-mA to 300-mA Falling Edge
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VIN = 4.3 V, CIN = 0 µF, VOUT = 3.3 V
Figure 6-25 PSRR vs Frequency and IOUT
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VIN = 4.3 V, CIN = 0 µF, VOUT = 3.3 V, IOUT = 300 mA
Figure 6-27 PSRR vs Frequency and COUT
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VIN = VOUT(nom) + 1 V, IOUT = 300 mA, VRMS BW = 10 Hz to 100 kHz
Figure 6-29 Output Noise vs Frequency and VOUT
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VIN = 6 V, VOUT = 5.0 V, IOUT = 300 mA,
VRMS BW = 10 Hz to 100 kHz
Figure 6-31 Output Noise vs Frequency and CFF
GUID-20200728-CA0I-K4ZZ-T3BC-H5LRR0SPH8BM-low.gif
VIN = 5.5 V, CIN = 0 µF, VOUT = 5.0 V, IOUT = 0 mA
Figure 6-33 Startup Inrush Current With
COUT = 4.7 µF
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VOUT = 5.0 V
Figure 6-2 Output Accuracy vs IOUT
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VOUT = 5.0 V
Figure 6-4 Output Accuracy vs VIN
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VOUT = 3.3 V
Figure 6-6 Dropout Voltage vs IOUT
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Figure 6-8 IGND vs IOUT
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VEN = 0.3 V
Figure 6-10 ISHDV vs VIN
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VIN = 2 V
Figure 6-12 VEN(HI) and VEV(LO) Threshold vs Temperature
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VOUT = 1.2 V
Figure 6-14 Foldback Current Limit vs IOUT and Temperature
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VOUT = 3.3 V, IOUT = 1 mA, slew rate = 1 V/µs
Figure 6-16 Line Transient
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VIN = 5.5 V, VOUT = 5.0 V, IOUT slew rate = 1 A/µs
Figure 6-18 IOUT Transient From 1 mA to 300 mA
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VIN = 5.5 V, VOUT = 5.0 V, IOUT slew rate = 1 A/µs
Figure 6-20 IOUT Transient From 300 mA to 1 mA
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VIN = 3.8 V, VOUT = 3.3 V, IOUT slew rate = 1 A/µs
Figure 6-22 IOUT Transient From 1-mA to 300-mA Rising Edge
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VIN = 2.2 V, CIN = 0 µF, VOUT = 1.2 V
Figure 6-24 PSRR vs Frequency and IOUT
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VIN = 6 V, CIN = 0 µF, VOUT = 5.0 V
Figure 6-26 PSRR vs Frequency and IOUT
GUID-84CE1213-EC0C-4DEC-B215-40508B5775BB-low.gif
VIN = 6 V, CIN = 0 µF, VOUT = 5.0 V, IOUT = 300 mA
Figure 6-28 PSRR vs Frequency and COUT
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VIN = 4.3 V, VOUT = 3.3 V, IOUT = 300 mA, VRMS BW = 10 Hz to 100 kHz
Figure 6-30 Output Noise vs Frequency and CFF
GUID-20200728-CA0I-JZC6-QMN2-DQKW5BR8R8MR-low.gif
VIN = 5.5 V, CIN = 0 µF, VOUT = 5.0 V, IOUT = 0 mA
 
Figure 6-32 Startup Inrush Current With
COUT = 1 µF