ZHCSP35A December   2021  – September 2022 TPS7A21

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Smart Enable (EN)
      2. 7.3.2 Low Output Noise
      3. 7.3.3 Active Discharge
      4. 7.3.4 Dropout Voltage
      5. 7.3.5 Foldback Current Limit
      6. 7.3.6 Undervoltage Lockout
      7. 7.3.7 Thermal Overload Protection (TSD)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Functional Mode Comparison
      2. 7.4.2 Normal Operation
      3. 7.4.3 Dropout Operation
      4. 7.4.4 Disabled
  8. 8 Applications and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Recommended Capacitor Types
      2. 8.1.2 Input and Output Capacitor Requirements
      3. 8.1.3 Load Transient Response
      4. 8.1.4 Undervoltage Lockout (UVLO) Operation
      5. 8.1.5 Power Dissipation (PD)
      6. 8.1.6 Estimating Junction Temperature
      7. 8.1.7 Recommended Area For Continuous Operation
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Power Dissipation and Device Operation
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 DSBGA Mounting
        2. 8.4.1.2 DSBGA Light Sensitivity
      2. 8.4.2 Layout Example
  9. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 术语表
  10. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Mechanical Data

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • YWD|4
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics

specified over operating temperature range (TJ = –40℃ to +125℃), VIN = VOUT(NOM) + 0.3 V or 2 V, whichever is greater, VEN = 1.0 V, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF (unless otherwise noted); all typical values are at TJ = 25℃
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ΔVOUT Output voltage tolerance VIN = (VOUT(NOM) + 0.3 V) to 6.0 V,
IOUT = 1 mA to 500 mA, 
VOUT ≥ 1.85 V 		 –1.5 1.5 %
VIN = (VOUT(NOM) + 0.3 V) to 6.0 V,
IOUT = 1 mA to 500 mA, 
VOUT < 1.85 V 		 –30 30 mV
ΔVOUT Line regulation VIN = (VOUT(NOM) + 0.3 V) to 6.0 V,
IOUT = 1 mA		 0.03 %/V
ΔVOUT Load regulation IOUT = 1 mA to 500 mA  0.001 %/mA
IGND Quiescent current VEN = VIN, VIN = 6.0 V, IOUT = 0 mA TJ = 25°C 6.5 9 µA
TJ = –40°C to 85°C 11
TJ = –40°C to 125°C 15
VEN = VIN, VIN = 6.0 V, IOUT = 500 mA 2900 3500
ISHTDWN Shutdown current VEN = 0 V (disabled), VIN = 6.0 V, TJ = 25°C 0.15 1 µA
VEN = 0 V (disabled), VIN = 6.0 V, TJ = –40°C to 125°C 4
IQ(DO) Quiescent current in dropout VIN ≤  VOUT(NOM), IOUT = 0 mA 7 15 µA
VDO Dropout voltage IOUT = 500 mA,
VOUT = 95% × VOUT(NOM) 		 0.8 V ≤ VOUT < 1.0 V (1) 750 mV
1.0 V ≤ VOUT < 1.2 V (1) 530
1.2 V ≤ VOUT < 1.5 V (1) 395
1.5 V ≤ VOUT < 2.5 V 260
2.5 V ≤ VOUT ≤ 5.5 V 175
ICL Output current limit VOUT = 0.9 × VOUT(NOM) 740 1060 1500 mA
ISC Short-circuit current limit VOUT = 0V 325 mA
PSRR Power-supply rejection ratio IOUT = 20 mA,
VIN = VOUT + 1.0 V		 f = 100 Hz 90 dB
f = 1 kHz 91
f = 10 kHz 71
f = 100 kHz 61
f = 1 MHz 50
IOUT = 500 mA,
VIN = VOUT + 1.0 V		 f = 100 Hz 65 dB
f = 1 kHz 85
f = 10 kHz 79
f = 100 kHz 44
f = 1 MHz 50
VN Output noise voltage BW = 10 Hz to
100 kHz,
VOUT = 2.8 V		 IOUT = 500 mA 7.7 µVRMS
IOUT = 1 mA 10
RPULLDOWN Output automatic discharge pulldown resistance VIN = 2 V, VEN < VIL (output disabled) 150 Ω
TSD Thermal shutdown rising TJ rising 165 °C
Thermal shutdown falling TJ falling 140
VEN(LOW) Low input threshold VIN = 2.0 V to 6.0 V,
VEN falling until the output is disabled		 0.3 V
VEN(HI) High input threshold VIN = 2.0 V to 6.0 V,
VEN rising until the output is enabled		 0.9 V
VUVLO UVLO threshold  VIN rising 1.11 1.32 1.63 V
VIN falling 1.05 1.27 1.57
VUVLO(HYST) UVLO hysteresis 50 mV
IEN EN pin leakage current VEN = 6.0 V and VIN = 6.0 V 100 250 nA
REN(PULL-DOWN) Smart enable pulldown resistor 440 kΩ
tON Turnon time From VEN > VIH to VOUT = 95% of VOUT(NOM) 120 200 280 µs
(1) Dropout voltages for VOUT values below or very near the UVLO threshold cannot be measured directly. Values shown are verified by simulation.
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