SBVS082K June   2007  – June 2024 TPS74901

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics: IOUT = 50mA
    7. 5.7 Typical Characteristics: IOUT = 1 A
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
      1. 6.3.1 Enable and Shutdown
      2. 6.3.2 Power-Good
      3. 6.3.3 Internal Current Limit
      4. 6.3.4 Thermal Protection
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
      3. 6.4.3 Disabled
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Input, Output, and BIAS Capacitor Requirements
      2. 7.1.2 Transient Response
      3. 7.1.3 Dropout Voltage
      4. 7.1.4 Output Noise
      5. 7.1.5 Programmable Soft-Start
      6. 7.1.6 Sequencing Requirements
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Power Dissipation
        2. 7.4.1.2 Thermal Considerations
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Device Nomenclature
      2. 8.1.2 Development Support
        1. 8.1.2.1 Evaluation Modules
        2. 8.1.2.2 Spice Models
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.6 Typical Characteristics: IOUT = 50mA

at TJ = 25°C, VIN = VOUT(NOM) + 0.3V, VBIAS = 5V, IOUT = 50mA, VEN = VIN, CIN = 1µF, CBIAS = 4.7µF, and COUT = 10µF (unless otherwise noted)

TPS74901 VIN Line Regulation
Legacy chip
Figure 5-1 VIN Line Regulation
TPS74901 VBIAS Line Regulation
Legacy chip
Figure 5-3 VBIAS Line Regulation
TPS74901 Load Regulation at Light Load
Legacy chip
Figure 5-5 Load Regulation at Light Load
TPS74901 Load Regulation
Legacy chip
Figure 5-7 Load Regulation
TPS74901 VIN Dropout Voltage vs IOUT and Temperature (TJ)
Legacy chip
Figure 5-9 VIN Dropout Voltage vs IOUT and Temperature (TJ)
TPS74901 VIN Dropout Voltage vs VIN Dropout Voltage vs IOUT and Temperature (TJ)
 
Figure 5-11 VIN Dropout Voltage vs VIN Dropout Voltage vs IOUT and Temperature (TJ)
TPS74901 VBIAS Dropout Voltage vs IOUT and Temperature (TJ)
New chip
Figure 5-13 VBIAS Dropout Voltage vs IOUT and Temperature (TJ)
TPS74901 VBIAS PSRR vs Frequency
New chip
Figure 5-15 VBIAS PSRR vs Frequency
TPS74901 VIN PSRR vs Frequency
New chip
Figure 5-17 VIN PSRR vs Frequency
TPS74901 VIN PSRR vs (VIN – VOUT)
New chip
Figure 5-19 VIN PSRR vs (VIN – VOUT)
TPS74901 Noise Spectral Density
New chip
Figure 5-21 Noise Spectral Density
TPS74901 BIAS Pin Current vs Output Current and Temperature (TJ)
New chip
Figure 5-23 BIAS Pin Current vs Output Current and Temperature (TJ)
TPS74901 BIAS Pin Current vs VBIAS and Temperature (TJ)
New chip
Figure 5-25 BIAS Pin Current vs VBIAS and Temperature (TJ)
TPS74901 Soft-Start Charging Current (ISS) vs Temperature (TJ)
New chip
Figure 5-27 Soft-Start Charging Current (ISS) vs Temperature (TJ)
TPS74901 Low-Level PG Voltage vs Current
New chip
Figure 5-29 Low-Level PG Voltage vs Current
TPS74901 Current Limit vs (VBIAS – VOUT)
New chip
Figure 5-31 Current Limit vs (VBIAS – VOUT)
TPS74901 VIN Line Regulation
New chip
Figure 5-2 VIN Line Regulation
TPS74901 VBIAS Line Regulation
New chip
Figure 5-4 VBIAS Line Regulation
TPS74901 Load Regulation at Light Load
New chip
Figure 5-6 Load Regulation at Light Load
TPS74901 Load Regulation
New chip
Figure 5-8 Load Regulation
TPS74901 VIN Dropout Voltage vs IOUT and Temperature (TJ)
New chip
Figure 5-10 VIN Dropout Voltage vs IOUT and Temperature (TJ)
TPS74901 VBIAS Dropout Voltage vs IOUT and Temperature (TJ)
Legacy chip
Figure 5-12 VBIAS Dropout Voltage vs IOUT and Temperature (TJ)
TPS74901 VBIAS PSRR vs Frequency
Legacy chip
Figure 5-14 VBIAS PSRR vs Frequency
TPS74901 VIN PSRR vs Frequency
Legacy chip
Figure 5-16 VIN PSRR vs Frequency
TPS74901 VIN PSRR vs (VIN – VOUT)
Legacy chip
Figure 5-18 VIN PSRR vs (VIN – VOUT)
TPS74901 Noise Spectral Density
Legacy chip
Figure 5-20 Noise Spectral Density
TPS74901 BIAS Pin Current vs IOUT and Temperature (TJ)
Legacy chip
Figure 5-22 BIAS Pin Current vs IOUT and Temperature (TJ)
TPS74901 BIAS Pin Current vs VBIAS and Temperature (TJ)
Legacy chip
Figure 5-24 BIAS Pin Current vs VBIAS and Temperature (TJ)
TPS74901 Soft-Start Charging Current (ISS) vs Temperature (TJ)
Legacy chip
Figure 5-26 Soft-Start Charging Current (ISS) vs Temperature (TJ)
TPS74901 Low-Level PG Voltage vs Current
Legacy chip
Figure 5-28 Low-Level PG Voltage vs Current
TPS74901 Current Limit vs (VBIAS – VOUT)
Legacy chip
Figure 5-30 Current Limit vs (VBIAS – VOUT)