ZHCSU65D February   2010  – June 2025 TPS73801

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  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 Adjustable Operation
      2. 6.3.2 Fixed Operation
      3. 6.3.3 Overload Recovery
      4. 6.3.4 Output Voltage Noise
      5. 6.3.5 Protection Features
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Output Capacitance and Transient Response
    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
        1. 7.4.1.1 Thermal Considerations
          1. 7.4.1.1.1 Calculating Junction Temperature
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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5.5 Electrical Characteristics

over operating temperature range TJ = –40°C to 125°C (unless otherwise noted)(1)
PARAMETERTEST CONDITIONSTJMINTYP (10)MAXUNIT
VINInput voltage (2) (3)25°C2.21.920V
VFBFB pin voltage (2) (4)TPS73801VIN = 2.21 V, ILOAD = 1 mA25°C1.1921.211.228V
VIN = 2.5 V to 20 V,
ILOAD = 1 mA to 1.0A		Full range1.1741.211.246
Line regulationTPS73801 (2)ΔVIN = 2.21 V to 20 V,
ILOAD = 1 mA		Full range1.55mV
Load regulationTPS73801 (2)VIN = 2.5 V,
ΔILOAD = 1 mA to 1.0 A		25°C28mV
Full range18
VDODropout voltage (3) (6) (5)
VIN = VOUT(NOMINAL)		ILOAD = 1 mA25°C0.020.06V
Full range0.10
ILOAD = 100 mA25°C0.10.17
Full range0.22
ILOAD = 500 mA25°C0.190.27
Full range0.35
ILOAD = 1.0 A25°C0.240.30
Full range0.40
IGNDGND pin current (5) (7)
VIN = VOUT(NOMINAL) + 1		ILOAD = 0 mAFull range11.5mA
ILOAD = 1 mAFull range1.11.6
ILOAD = 100 mAFull range3.85.5
ILOAD = 500 mAFull range1525
ILOAD = 1.0 AFull range3580
VNOutput voltage noiseCOUT = 10 µF, ILOAD = 1.0 A,
BW = 10 Hz to 100 kHz		25°C45µVRMS
IFBFB pin bias current (2) (8) 25°C310μA
VENShutdown thresholdVOUT = OFF to ONFull range0.92V
VOUT = ON to OFFFull range0.250.75
IENEN pin currentVEN = 0 V25°C0.011μA
VEN = 20 V25°C330
Quiescent current in shutdownVIN = 6 V, VEN = 0 V25°C0.011μA
PSRRRipple rejectionVIN – VOUT = 1.5 V (avg), VRIPPLE = 0.5 VP-P,
fRIPPLE = 120 Hz, ILOAD = 0.75 A		25°C5563dB
ICLCurrent limitVIN = 7 V, VOUT = 0 V25°C2A
VIN = VOUT(NOMINAL) + 1Full range1.6
IREVInput reverse leakage currentVIN = –20 V, VOUT = 0 VFull range1mA
IROReverse output current (9)TPS73801VOUT = 1.21 V, VIN < 1.21 V25°C300600μA
(1) The TPS73801 regulators are tested and specified under pulse load conditions such that TJ is approximately equal to TA. The TPS73801 is fully tested at TA = 25°C. Performance at –40°C and 125°C is specified by design, characterization, and correlation with statistical process controls.
(2) The TPS73801 is tested and specified for these conditions with the FB pin connected to the OUT pin.
(3) Dropout voltages are limited by the minimum input voltage specification under some output voltage and load conditions.
(4) Operating conditions are limited by maximum junction temperature. The regulated output voltage specification does not apply for all possible combinations of input voltage and output current. When operating at maximum input voltage, the output current range must be limited. When operating at maximum output current, the input voltage range must be limited.
(5) To satisfy requirements for minimum input voltage, the TPS73801 is tested and specified for these conditions with an external resistor divider (two 4.12-kΩ resistors) for an output voltage of 2.4 V. The external resistor divider adds a 300-μA DC load on the output.
(6) Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a specified output current. In dropout, the output voltage is equal to: VIN – VDROPOUT.
(7) GND pin current is tested with VIN = (VOUT(NOMINAL) + 1 V) and a current source load. The GND pin current decreases at higher input voltages.
(8) FB pin bias current flows into the FB pin.
(9) Reverse output current is tested with the IN pin grounded and the OUT pin forced to the rated output voltage. This current flows into the OUT pin and out the GND pin.
(10) Typical values represent the likely parametric nominal values determined at the time of characterization. Typical values depend on the application and configuration and can vary over time. Typical values are not specified on production material.