SBVS064P December   2005  – February 2025 TPS74201

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. 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
  7. 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 (VQFN Packages Only)
      3. 6.3.3 Internal Current Limit
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
      3. 6.4.3 Disabled
  8. 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 Applications
      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 Thermal Protection
        2. 7.4.1.2 Thermal Considerations
      2. 7.4.2 Layout Example
  9. Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Evaluation Modules
        2. 8.1.1.2 Spice Models
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
      2. 8.2.2 Device Nomenclature
    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. Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Typical Characteristics

at TJ = 25°C, VOUT = 1.5V, VIN = VOUT(NOM) + 0.3V, VBIAS = 3.3V (legacy chip), VBIAS = 5.0V (new chip), IOUT = 50mA, VEN = VIN, CIN = 1μF, CBIAS = 4.7μF, CSS = 0.01μF (legacy chip), and COUT = 10μF (unless otherwise noted)

TPS74201 Load
                        Regulation
Legacy chip
Figure 5-1 Load Regulation
TPS74201 Load
                        Regulation
Legacy chip
Figure 5-3 Load Regulation
TPS74201 Line
                        Regulation
Legacy chip
Figure 5-5 Line Regulation
TPS74201 VIN Dropout Voltage vs IOUT and Temperature
                            (TJ)
Legacy chip
Figure 5-7 VIN Dropout Voltage vs IOUT and Temperature (TJ)
TPS74201 VIN Dropout Voltage vs VBIAS  – VOUT
                        and Temperature (TJ)
Legacy chip
Figure 5-9 VIN Dropout Voltage vs VBIAS  – VOUT and Temperature (TJ)
TPS74201 VBIAS Dropout Voltage vs IOUT and
                        Temperature
Legacy chip
Figure 5-11 VBIAS Dropout Voltage vs IOUT and Temperature
TPS74201 VBIAS PSRR vs Frequency
Legacy chip
Figure 5-13 VBIAS PSRR vs Frequency
TPS74201 VIN PSRR vs Frequency
Legacy chip
Figure 5-15 VIN PSRR vs Frequency
TPS74201 VIN PSRR vs Frequency
New chip 
Figure 5-17 VIN PSRR vs Frequency
TPS74201 VIN PSRR vs (VIN – VOUT)
New chip
Figure 5-19 VIN PSRR vs (VIN – VOUT)
TPS74201 Noise
                        Spectral Density
New chip
Figure 5-21 Noise Spectral Density
TPS74201 BIAS
                        Pin Current vs Output Current and Temperature (TJ)
New chip
Figure 5-23 BIAS Pin Current vs Output Current and Temperature (TJ)
TPS74201 BIAS
                        Pin Current vs VBIAS and Temperature (TJ)
New chip
Figure 5-25 BIAS Pin Current vs VBIAS and Temperature (TJ)
TPS74201 Soft-Start Charging Current (ISS) vs Temperature
Legacy chip
Figure 5-27 Soft-Start Charging Current (ISS) vs Temperature
TPS74201 Low-Level PG Voltage vs PG Current
Legacy chip
Figure 5-29 Low-Level PG Voltage vs PG Current
TPS74201 VBIAS Line Transient (1.5A)
Legacy chip
Figure 5-31 VBIAS Line Transient (1.5A)
TPS74201 VIN Line Transient
Legacy chip
Figure 5-33 VIN Line Transient
TPS74201 Output Load Transient Response
Legacy chip
Figure 5-35 Output Load Transient Response
TPS74201 Turnon Response
Legacy chip
Figure 5-37 Turnon Response
TPS74201 Power-Up, Power-Down
Legacy chip
Figure 5-39 Power-Up, Power-Down
TPS74201 Output Short-Circuit Recovery
Legacy chip
Figure 5-41 Output Short-Circuit Recovery
TPS74201 Load
                        Regulation at Light Load
New chip
Figure 5-2 Load Regulation at Light Load
TPS74201 Load
                        Regulation
New chip
Figure 5-4 Load Regulation
TPS74201 Line
                        Regulation
New chip
Figure 5-6 Line Regulation
TPS74201 VIN Dropout Voltage vs IOUT and Temperature
                            (TJ)
New chip
Figure 5-8 VIN Dropout Voltage vs IOUT and Temperature (TJ)
TPS74201 VIN Dropout Voltage vs VBIAS  – VOUT
                        and Temperature (TJ)
Legacy chip
Figure 5-10 VIN Dropout Voltage vs VBIAS  – VOUT and Temperature (TJ)
TPS74201 VBIAS Dropout Voltage vs IOUT and Temperature
                            (TJ)
New chip
Figure 5-12 VBIAS Dropout Voltage vs IOUT and Temperature (TJ)
TPS74201 VBIAS PSRR vs Frequency
New chip
Figure 5-14 VBIAS PSRR vs Frequency
TPS74201 VIN PSRR vs Frequency
Legacy chip
Figure 5-16 VIN PSRR vs Frequency
TPS74201 VIN PSRR vs VIN  – VOUT
Legacy chip
Figure 5-18 VIN PSRR vs VIN  – VOUT
TPS74201 Noise
                        Spectral Density
Legacy chip
Figure 5-20 Noise Spectral Density
TPS74201 IBIAS vs IOUT and Temperature
Legacy chip
Figure 5-22 IBIAS vs IOUT and Temperature
TPS74201 IBIAS vs VBIAS and VOUT
Legacy chip
Figure 5-24 IBIAS vs VBIAS and VOUT
TPS74201 IBIAS Shutdown vs Temperature
Legacy chip
Figure 5-26 IBIAS Shutdown vs Temperature
TPS74201 Soft-Start Charging Current (ISS) vs Temperature
                        (TJ)
New chip
Figure 5-28 Soft-Start Charging Current (ISS) vs Temperature (TJ)
TPS74201 Low-Level PG Voltage vs Current
New chip
Figure 5-30 Low-Level PG Voltage vs Current
TPS74201 VBIAS Line Transient
New chip
Figure 5-32 VBIAS Line Transient
TPS74201 VIN Line Transient
New chip
Figure 5-34 VIN Line Transient
TPS74201 Output Load Transient Response
New chip
Figure 5-36 Output Load Transient Response
TPS74201 Turn-On Response
New chip
Figure 5-38 Turn-On Response
TPS74201 Power-Up, Power-Down
New chip
Figure 5-40 Power-Up, Power-Down