SBVS477A May   2025  – July 2025 TPS7B4259-Q1

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
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Tracker Output Voltage (VOUT)
        1. 6.3.1.1 Output Voltage Equal to Reference Voltage
        2. 6.3.1.2 Output Voltage Less Than the Reference Voltage
      2. 6.3.2 Reverse Current Protection
      3. 6.3.3 Power Good
      4. 6.3.4 Undervoltage Lockout
      5. 6.3.5 Thermal Protection
      6. 6.3.6 Current Limit
      7. 6.3.7 Output Short to Battery
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
      3. 6.4.3 Operation With VIN < 3.3V
      4. 6.4.4 Disable With ADJ and EN Controls
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Dropout Voltage
      2. 7.1.2 Reverse Current
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Input and Output Capacitor Selection
      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 Package Mounting
        2. 7.4.1.2 Board Layout Recommendations to Improve PSRR and Noise Performance
        3. 7.4.1.3 Power Dissipation and Thermal Considerations
        4. 7.4.1.4 Thermal Performance Versus Copper Area
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Device Nomenclature
    2. 8.2 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

TPS7B4259-Q1 Tracking Error vs Ambient Temperature
VIN = 13.5V, VADJ = 5V, VEN = 2V
Figure 5-1 Tracking Error vs Ambient Temperature
TPS7B4259-Q1 Output Voltage vs Adjustable Reference Voltage
VIN = 13.5V, VEN = 2V, IOUT = 10mA
Figure 5-3 Output Voltage vs Adjustable Reference Voltage
TPS7B4259-Q1 Line Regulation
VADJ = 5V, VEN = 2V, IOUT = 100µA
Figure 5-5 Line Regulation
TPS7B4259-Q1 Load Regulation
VIN = 13.5V, VADJ = 5V, VEN = 2V
Figure 5-7 Load Regulation
TPS7B4259-Q1 Dropout Voltage vs Ambient Temperature
VIN = 5V, VADJ = 5V, VEN = 2V
Figure 5-9 Dropout Voltage vs Ambient Temperature
TPS7B4259-Q1 Ground Current vs Ambient Temperature
VIN = 13.5V, VADJ = 5V, VEN = 2V
Figure 5-11 Ground Current vs Ambient Temperature
TPS7B4259-Q1 Ground Current vs Input Voltage
VADJ = 5V, VEN = 2V, IOUT = 150mA
Figure 5-13 Ground Current vs Input Voltage
TPS7B4259-Q1 Shutdown Current vs Ambient Temperature
VIN = 13.5V, VADJ = 0V, VEN = 2V
Figure 5-15 Shutdown Current vs Ambient Temperature
TPS7B4259-Q1 Current Limit vs Output Voltage
VIN = 13.5V, VADJ = 5V, VEN = 2V
Figure 5-17 Current Limit vs Output Voltage
TPS7B4259-Q1 Current Limit vs Input Voltage
VADJ = 2V, VEN = 2V, VOUT = 0V
Figure 5-19 Current Limit vs Input Voltage
TPS7B4259-Q1 Enable Pin Leakage Current vs Ambient Temperature
VIN = 13.5V, VADJ = 5V, VEN = 2V
Figure 5-21 Enable Pin Leakage Current vs Ambient Temperature
TPS7B4259-Q1 Undervoltage Trip Threshold vs Ambient Temperature
VIN = 5V, VADJ = 5V, VEN = 2V, VIN ramped down
Figure 5-23 Undervoltage Trip Threshold vs Ambient Temperature
TPS7B4259-Q1 Undervoltage PG Trip Response Time vs Ambient Temperature
VIN = 5V, VADJ = 5V, VEN = 2V, VIN ramped up
Figure 5-25 Undervoltage PG Trip Response Time vs Ambient Temperature
TPS7B4259-Q1 Reverse Leakage Current vs Input Voltage
VOUT = 0V, VADJ = 5V, VEN = 2V
Figure 5-27 Reverse Leakage Current vs Input Voltage
TPS7B4259-Q1 ESR vs Load Capacitance
Stable region: 1mΩ ≤ ESR ≤ 2Ω, 1μF ≤ COUT ≤ 100µF
 
Figure 5-29 ESR vs Load Capacitance
TPS7B4259-Q1 Start-Up Profile
VIN = 13.5V, VADJ = 5V, VEN = 0V to 2V at a rate of 1V/μs, COUT = 1μF, IOUT = 150mA
Figure 5-31 Start-Up Profile
TPS7B4259-Q1 Load Transient
VIN = 13.5V, VADJ = 5V, VEN = 2V, COUT = 1μF, IOUT = 1mA to 150mA at 1A/µs
Figure 5-33 Load Transient
TPS7B4259-Q1 PSRR vs Frequency
VIN = 13.5V, VADJ = 5V, VEN = 2V, COUT = 1μF
 
Figure 5-35 PSRR vs Frequency
TPS7B4259-Q1 Tracking Error vs Output Current
VIN = 13.5V, VADJ = 5V, VEN = 2V
Figure 5-2 Tracking Error vs Output Current
TPS7B4259-Q1 Output Voltage vs Input Voltage
VADJ = 5V, VEN = 2V, IOUT = 10mA
Figure 5-4 Output Voltage vs Input Voltage
TPS7B4259-Q1 Line Regulation
VADJ = 5V, VEN = 2V, IOUT = 150mA
Figure 5-6 Line Regulation
TPS7B4259-Q1 Dropout Voltage vs Load Current
VIN = 5V, VADJ = 5V, VEN = 2V
Figure 5-8 Dropout Voltage vs Load Current
TPS7B4259-Q1 Quiescent Current vs Input Voltage
VADJ = 2V, VEN = 2V, IOUT = 100µA
Figure 5-10 Quiescent Current vs Input Voltage
TPS7B4259-Q1 Ground Current vs Output Current
VIN = 13.5V, VADJ = 5V, VEN = 2V
Figure 5-12 Ground Current vs Output Current
TPS7B4259-Q1 Shutdown Current vs Ambient Temperature
VIN = 13.5V, VADJ = 2V, VEN = 0V
Figure 5-14 Shutdown Current vs Ambient Temperature
TPS7B4259-Q1 Current Limit vs Ambient Temperature
VIN = 13.5V, VADJ = 5V, VEN = 2V, VOUT = 0.9 × VOUT NOM
Figure 5-16 Current Limit vs Ambient Temperature
TPS7B4259-Q1 Current Limit vs Input Voltage
VADJ = 5V, VEN = 2V, VOUT = 0.9 × VOUT NOM
Figure 5-18 Current Limit vs Input Voltage
TPS7B4259-Q1 Adjustable Pin Leakage Current vs Ambient Temperature
VIN = 13.5V, VADJ = 5V, VEN = 2V
Figure 5-20 Adjustable Pin Leakage Current vs Ambient Temperature
TPS7B4259-Q1 Overvoltage Trip Threshold vs Ambient Temperature
VIN = 13.5V, VADJ = 5V, VEN = 2V, VOUT ramped up
Figure 5-22 Overvoltage Trip Threshold vs Ambient Temperature
TPS7B4259-Q1 Overvoltage PG Trip Response Time vs Ambient Temperature
VIN = 13.5V, VADJ = 5V, VEN = 2V, VOUT ramped up
Figure 5-24 Overvoltage PG Trip Response Time vs Ambient Temperature
TPS7B4259-Q1 Reverse Leakage Current vs Output Voltage
VIN = 0V, VADJ = 5V, VEN = 2V
Figure 5-26 Reverse Leakage Current vs Output Voltage
TPS7B4259-Q1 Reverse Current Protection Response Time vs Output-Input Differential Voltage
VIN = 13.5V, VADJ = 5V, VEN = 2V, simulation results
Figure 5-28 Reverse Current Protection Response Time vs Output-Input Differential Voltage
TPS7B4259-Q1 Start-Up Profile
VIN = 0V to 13.5V at a rate of 1V/μs, VADJ = 5V, VEN = 2V, COUT = 1μF, IOUT = 150mA
Figure 5-30 Start-Up Profile
TPS7B4259-Q1 Line Transient
VIN = 6V to 40V at a rate of 1V/μs, VADJ = 5V, VEN = 2V, COUT = 1μF, IOUT = 150mA
Figure 5-32 Line Transient
TPS7B4259-Q1 Power-Good Functionality
VADJ = 5V, VEN = 2V, COUT = 1μF, VOUT ramped down to 4.4V from nominal value of 5V and then ramped up to 5.6V
Figure 5-34 Power-Good Functionality
TPS7B4259-Q1 PSRR vs Frequency
VIN = 13.5V, VADJ = 5V, VEN = 2V, COUT = 1μF, IOUT = 10mA
 
Figure 5-36 PSRR vs Frequency