SLUSFR0A July   2024  – August 2024 TPS51375

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  PWM Operation and D-CAP3™ Control Mode
      2. 6.3.2  Remote Sense
      3. 6.3.3  Body Braking
      4. 6.3.4  5V LDO and BYP Function
      5. 6.3.5  Soft Start
      6. 6.3.6  Large Duty Operation
      7. 6.3.7  Power Good
      8. 6.3.8  Overcurrent Protection and Undervoltage Protection
      9. 6.3.9  Overvoltage Protection
      10. 6.3.10 UVLO Protection
      11. 6.3.11 Output Voltage Discharge
      12. 6.3.12 Standby Operation
      13. 6.3.13 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Advanced Eco-mode Control
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 External Component Selection
          1. 7.2.2.2.1 Remote Sense Amplifier and Adjusting the Output Voltage
          2. 7.2.2.2.2 Inductor Selection
          3. 7.2.2.2.3 Output Capacitor Selection
          4. 7.2.2.2.4 Input Capacitor Selection
          5. 7.2.2.2.5 Bootstrap Capacitor Selection
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Custom Design With WEBENCH® Tools
    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 Tape and Reel Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.5 Electrical Characteristics

TJ = –40°C to 125°C, VIN = 12V, unless otherwise noted.
PARAMETERTEST CONDITIONMINTYPMAXUNIT
SUPPLY CURRENT
VINInput voltage range4.524V
IVINNon-switching supply currentNo load, VEN = 5V, non-switching270μA
IVINSDNShutdown supply currentNo load, VEN = 0V3μA
VCC OUTPUT
VCCVCC output voltageVIN > 5.2V, IVCC ≤ 1mA, Bypasss switch off4.64.95.2V
FEEDBACK VOLTAGE
VFBFeedback regulation voltageTJ = 25°C594600606mV
TJ = –40°C to 125°C591600609mV
DUTY CYCLE and FREQUENCY CONTROL
FSWSwitching frequencyCCM operation, TPS51375600 kHz
tON(MIN)SW minumum on time(1) 60 ns
tOFF(MIN)SW minimum off time(1)

130

ns
MOSFET and DRIVERS
RDS(ON)HHigh side switch resistanceTJ = 25°C10mΩ
RDS(ON)LLow side switch resistanceTJ = 25°C5mΩ
OUTPUT DISCHARGE and SOFT START
RDISDischarge resistanceVEN = 0V 50 Ω
tSSSoft-start timeInternal soft-start time 1ms
POWER GOOD
tPGDLYPG delay risingPG from low to high 160 us
PG delay fallingPG from high to low30us
VPGTHPG thresholdVFB falling (fault)83%
VFB rising (good)90%
VFB rising (fault)120%
VFB falling (good)115%
VPG_LPG sink current capabilityIOL = 4mA0.4V
IPGLKPG leak currentVPGOOD = 5.5V1μA
CURRENT LIMIT
IOCLOvercurrent threshold (valley)Valley current limit on LS FET, TJ = 25°C222630A
LOGIC THRESHOLD
VENHEN high-level input voltageTJ = 25°C1V
VENLEN low-level input voltageTJ = 25°C0.4V
IENEnable internal pull down currentVEN = 0.3V 2 µA
OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION
VOVPOVP trip threshold120%
tOVPDLYOVP prop deglitch256us
VUVPUVP trip threshold60%
tUVPDLYUVP prop deglitch200us
UVLO
VUVLOVIN UVLO thresholdWake up4.254.45V
Shutdown3.43.6 V
Hysteresis0.65V
OVERTEMPERATURE PROTECTION
TOTPOTP trip threshold(1)Shutdown temperature160°C
TOTPHSYOTP hysteresis(1)Hysteresis20°C
(1) Specified by design. Not production tested.