SLVSCP3D January   2015  – November 2025 TPS7B4253-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 Short Circuit and Overcurrent Protection
      2. 6.3.2 Integrated Inductive Clamp Protection
      3. 6.3.3 OUT Short to Battery and Reverse Polarity Protection
      4. 6.3.4 Undervoltage Shutdown
      5. 6.3.5 Thermal Protection
      6. 6.3.6 Regulated Output (OUT)
      7. 6.3.7 Enable (EN)
      8. 6.3.8 Adjustable Output Voltage (FB and ADJ)
        1. 6.3.8.1 OUT Voltage Equal to the Reference Voltage
        2. 6.3.8.2 OUT Voltage Higher Than Reference Voltage
        3. 6.3.8.3 Output Voltage Lower Than Reference Voltage
    4. 6.4 Device Functional Modes
      1. 6.4.1 Operation With VIN < 4V
      2. 6.4.2 Operation With EN Control
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Application With Output Voltage Equal to the Reference Voltage
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 Input Capacitor
          2. 7.2.1.2.2 Output Capacitor
        3. 7.2.1.3 Application Curve
      2. 7.2.2 High-Side Switch Configuration
      3. 7.2.3 High Accuracy LDO
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Power Dissipation and 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
    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
    1. 10.1 Mechanical Data

5.5 Electrical Characteristics

VIN = 13.5V, VADJ ≥ 1.5V for HTSSOP, VADJ ≥ 2V for SO PowerPAD, VEN ≥ 2V, TJ = –40°C to 150°C unless otherwise stated
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
VI(UVLO)IN undervoltage detectionVIN rising3.65V
VIN falling2.8V
ΔVOOutput voltage tracking accuracy(1)IOUT = 100µA to 300mA, VIN = 4 to 40V
VADJ < VIN – 1V
1.5V < VADJ < 18V for HTSSOP
2V < VADJ < 18V for SO PowerPAD		–44mV
ΔVO(ΔIO)Load regulation steady-stateIOUT = 0.1 to 300mA, VADJ= 5V4mV
ΔVO(ΔVI)Line regulation steady-stateIOUT= 10mA, VIN = 6 to 40V, VADJ = 5V4mV
PSRRPower supply ripple rejectionƒrip = 100Hz, Vrip = 0.5VPP, C(OUT) = 10µF, IOUT = 100mA70dB
V(DROPOUT)Dropout voltage
(V(DROPOUT) = VIN – VOUT)		IOUT = 200mA, VIN = VADJ ≥ 4V(2)320520mV
IO(lim)Output current limitationVADJ = 5V, OUT short to GND301450520mA
IR(IN)Reverse current at INVIN = 0V, VOUT = 40V, VADJ = 5V–20µA
IR(–IN)Reverse current at negative INVIN = –40V, VOUT = 0V, VADJ = 5V–100µA
TSDThermal shutdown temperatureTJ increases because of power dissipation generated by the IC175°C
TSD_hysThermal shutdown hysteresis15°C
IQCurrent consumption4V ≤ VIN ≤ 40V, VADJ = 0V; VEN = 0V24µA
4V ≤ VIN ≤ 40V, VEN ≥ 2V, VADJ < 0.8V718
4V ≤ VIN ≤ 40V, IOUT < 100µA, VADJ = 5V60100
4V ≤ VIN ≤ 40V, IOUT < 300mA, VADJ = 5V350400
IQ(DROPOUT)Current consumption in dropout regionVIN = VADJ = 5V, IOUT = 100µA70140µA
II(ADJ)Adjust input currentVADJ = VFB = 5VHTSSOP package0.5µA
SO PowerPAD package5.5
V(ADJ_LOW)Adjust low signal validVOUT = 0VHTSSOP package00.8V
SO PowerPAD package00.7
V(ADJ_HIGH)Adjust high signal valid|VOUT – VADJ| < 4mVHTSSOP package1.518V
SO PowerPAD package218
V(EN_LOW)Enable low signal validVOUT = 0V00.7V
V(EN_HIGH)Enable high Signal ValidOUT settled240V
IENEnable pulldown current2V < VEN < 40V5µA
IFBFB bias currentVADJ = VFB = 5V0.5µA
(1) The tracking accuracy is specified when the FB pin is directly connected to the OUT pin which means VADJ = VOUT, external resistor divider variance is not included.
(2) Measured when the output voltage, VOUT has dropped 10mV from the nominal value.