SBVS457A August   2024  – September 2024 TPS7A20U

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 Switching Characteristics
    7. 5.7 Typical Characteristics
  7. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Low Output Noise
      2. 6.3.2 Smart Enable
      3. 6.3.3 Dropout Voltage
      4. 6.3.4 Current Limit
      5. 6.3.5 Undervoltage Lockout (UVLO)
      6. 6.3.6 Thermal Shutdown
      7. 6.3.7 Active Discharge
    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 Recommended Capacitor Types
      2. 7.1.2 Input and Output Capacitor Requirements
      3. 7.1.3 Load Transient Response
      4. 7.1.4 Undervoltage Lockout (UVLO) Operation
      5. 7.1.5 Power Dissipation (PD)
        1. 7.1.5.1 Estimating Junction Temperature
        2. 7.1.5.2 Recommended Area for Continuous Operation
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Device Nomenclature
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Typical Characteristics

VIN = VOUT(NOM) + 0.3V or 1.6V (whichever is greater), VOUT = 4.1V, IOUT = 1mA, CIN = 1µF, COUT = 1µF, and TA = 25°C (unless otherwise noted)

TPS7A20U Line Regulation vs VIN
VEN = 1V
Figure 5-1 Line Regulation vs VIN
TPS7A20U Load Regulation vs IOUT
VIN = 4.4V, VEN = 1V
Figure 5-3 Load Regulation vs IOUT
TPS7A20U Output Voltage Accuracy vs IOUT
VEN = 1V
Figure 5-5 Output Voltage Accuracy vs IOUT
TPS7A20U Dropout Voltage vs IOUT
VEN = 1V
Figure 5-7 Dropout Voltage vs IOUT
TPS7A20U I GND vs VIN
VEN = 1V, IOUT = 0mA
Figure 5-9 I GND vs VIN
TPS7A20U IGND vs IOUT
VEN = 1V
Figure 5-11 IGND vs IOUT
TPS7A20U Shutdown Current vs VIN
VEN = 1V
Figure 5-13 Shutdown Current vs VIN
TPS7A20U Enable Pin Leakage Current vs VEN – VIN
VEN = 6V, IOUT = 0mA
Figure 5-15 Enable Pin Leakage Current vs
VEN – VIN
TPS7A20U Enable Logic High Threshold vs Temperature
 
Figure 5-17 Enable Logic High Threshold vs Temperature
TPS7A20U Load Transient
IOUT = 1mA to 75mA, tRISING = 75ns
Figure 5-19 Load Transient
TPS7A20U Load Transient
IOUT = 0mA to 75mA, tRISING = 75ns
Figure 5-21 Load Transient
TPS7A20U Line Transient
VIN = 4.4V → 5.4V → 4.4V, VIN tRISING = 5µs, IOUT = 75mA
Figure 5-23 Line Transient
TPS7A20U PSRR vs Frequency and VIN
IOUT = 20mA
Figure 5-25 PSRR vs Frequency and VIN
TPS7A20U PSRR vs Frequency and IOUT
 
Figure 5-27 PSRR vs Frequency and IOUT
TPS7A20U PSRR vs Frequency and COUT
IOUT = 75mA
Figure 5-29 PSRR vs Frequency and COUT
TPS7A20U Noise vs Frequency and VIN
IOUT = 20mA, VRMS BW = 10Hz to 100kHz
Figure 5-31 Noise vs Frequency and VIN
TPS7A20U Noise vs Frequency and COUT
IOUT = 20mA, VRMS BW = 10Hz to 100kHz
Figure 5-33 Noise vs Frequency and COUT
TPS7A20U Noise vs Frequency and IOUT
VRMS BW = 10Hz to 100kHz
Figure 5-35 Noise vs Frequency and IOUT
TPS7A20U Start-Up
VIN = 0V to 4.4V, VEN = 0V to 3.6V, VEN rises 500µs behind VIN, VIN and VEN slew rate = 1V/µs
Figure 5-37 Start-Up
TPS7A20U Inrush Current
VIN = 4.4V, VEN = 0V to 3.6V, VEN slew rate = 1V/µs,
COUT = 1µF
Figure 5-39 Inrush Current
TPS7A20U Load Regulation vs IOUT
VIN = 4.4V, VEN = 1V
Figure 5-2 Load Regulation vs IOUT
TPS7A20U Output Voltage Accuracy vs IOUT
VEN = 1V
Figure 5-4 Output Voltage Accuracy vs IOUT
TPS7A20U Output Voltage Accuracy vs VIN
VEN = 1V, IOUT = 1mA
Figure 5-6 Output Voltage Accuracy vs VIN
TPS7A20U Dropout Voltage vs IOUT
VEN = 1V
Figure 5-8 Dropout Voltage vs IOUT
TPS7A20U IGND vs VIN
VEN = VIN, IOUT = 0mA
Figure 5-10 IGND vs VIN
TPS7A20U IGND vs IOUT
VEN = 1V
Figure 5-12 IGND vs IOUT
TPS7A20U Shutdown Current vs VIN
VEN = 0V
Figure 5-14 Shutdown Current vs VIN
TPS7A20U UVLO Threshold vs Temperature
VEN = 1V
Figure 5-16 UVLO Threshold vs Temperature
TPS7A20U Enable Logic Low Threshold Low vs Temperature
 
Figure 5-18 Enable Logic Low Threshold Low vs Temperature
TPS7A20U Load Transient
IOUT = 75mA to 1mA, tFALLING = 75ns
Figure 5-20 Load Transient
TPS7A20U Load Transient
IOUT = 75mA to 0mA, tFALLING = 75ns
Figure 5-22 Load Transient
TPS7A20U Line Transient
VIN = 4.4V → 5.4V → 4.4V, VIN tRISING = 5µs, IOUT = 1mA
Figure 5-24 Line Transient
TPS7A20U PSRR vs Frequency and VIN
IOUT = 75mA
Figure 5-26 PSRR vs Frequency and VIN
TPS7A20U PSRR vs Frequency and COUT
IOUT = 20mA
Figure 5-28 PSRR vs Frequency and COUT
TPS7A20U Noise vs Frequency and IOUT
VRMS BW = 10Hz to 100kHz
Figure 5-30 Noise vs Frequency and IOUT
TPS7A20U Noise vs Frequency and VIN
IOUT = 75mA, VRMS BW = 10Hz to 100kHz
Figure 5-32 Noise vs Frequency and VIN
TPS7A20U Noise vs Frequency and COUT
IOUT = 75mA, VRMS BW = 10Hz to 100kHz
Figure 5-34 Noise vs Frequency and COUT
TPS7A20U Start-Up Turn-On Time
From VEN = VEN(HI) to VOUT = 95% of VOUT(NOM), IOUT = 0mA
 
Figure 5-36 Start-Up Turn-On Time
TPS7A20U Start-Up
VIN = 0V to 4.4V, VEN = 0V to 3.6V, VEN rises 500µs ahead of VIN, VIN and VEN slew rate = 1V/µs
Figure 5-38 Start-Up
TPS7A20U Inrush Current
VIN = 4.4V, VEN = 0V to 3.6V, VEN slew rate = 1V/µs,
COUT = 200µF
Figure 5-40 Inrush Current