ZHCSHE9J June   2010  – January 2018 TPS7A80

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Internal Current Limit
      2. 7.3.2 Shutdown
      3. 7.3.3 Start-Up
      4. 7.3.4 Undervoltage Lockout (UVLO)
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Dropout Voltage
        2. 8.2.1.2 Minimum Load
        3. 8.2.1.3 Input and Output Capacitor Requirements
        4. 8.2.1.4 Transient Response
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Output Noise
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
      2. 10.1.2 Thermal Considerations
      3. 10.1.3 Power Dissipation
      4. 10.1.4 Estimating Junction Temperature
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 文档支持
      1. 11.1.1 相关文档
    2. 11.2 接收文档更新通知
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
  12. 12机械、封装和可订购信息

封装选项

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

6.5 Electrical Characteristics

At TJ = –40°C to +125°C, VIN = VOUT(TYP) + 0.5 V or 2.2 V (whichever is greater), IOUT = 1 mA, VEN = 2.2 V, COUT = 4.7 μF, and CNR = 0.01 μF (unless otherwise noted). TPS7A8001 tested at VOUT = 0.8 V and VOUT = 6 V. Typical values are at TJ = 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VNR Internal reference Adjustable and Fixed VOUT = 1.2 V 0.79 0.8 0.81 V
Fixed VOUT ≥ 1.8 V 1.23 1.243 1.26 V
VOUT Output voltage Adjustable version only (TPS7A8001) 0.8 6 V
Fixed versions only 1.2 5 V
Output accuracy(1)(2) VOUT + 0.5 V ≤ VIN ≤ 6 V, VIN ≥ 2.5 V,
100 mA ≤ IOUT ≤ 500 mA, 0°C ≤ TJ ≤ 85°C		 –2% 2%
VOUT + 0.5 V ≤ VIN ≤ 6.5 V, VIN ≥ 2.2 V,
100 mA ≤ IOUT ≤ 1 A		 –3% ±0.3% 3%
ΔVOUT/ΔVIN Line regulation VOUT(NOM) + 0.5 V ≤ VIN ≤ 6.5 V, VIN ≥ 2.2 V,
IOUT = 100 mA		 150 μV/V
ΔVOUT/ΔIOUT Load regulation 100 mA ≤ IOUT ≤ 1 A 2 μV/mA
VDO Dropout voltage(3) VOUT + 0.5 V ≤ VIN ≤ 6.5 V, VIN ≥ 2.2 V,
IOUT = 500 mA, VFB = GND or VSNS = GND		 250 mV
VOUT + 0.5 V ≤ VIN ≤ 6.5 V, VIN ≥ 2.5 V,
IOUT = 750 mA, VFB = GND or VSNS = GND		 350 mV
VOUT + 0.5 V ≤ VIN ≤ 6.5 V, VIN ≥ 2.5 V,
IOUT = 1 A, VFB = GND or VSNS = GND		 500 mV
ICL Output current limit VOUT = 0.85 × VOUT(NOM), VIN ≥ 3.3 V Adjustable 1100 1400 2000 mA
Fixed 1100 2000
IGND Ground pin current IOUT = 1 mA, adjustable version only 60 100 μA
IOUT = 1 mA, fixed versions only 120 μA
IOUT = 1 A 350 μA
ISHDN Shutdown current (IGND) VEN ≤ 0.4 V, VIN ≥ 2.2 V, RL = 1 kΩ, 0°C ≤ TJ ≤ 85°C 2 μA
IFB Feedback pin current (TPS7A8001) VIN = 6.5 V, VFB = 0.8 V 0.02 1 μA
PSRR Power-supply rejection ratio VIN = 4.3 V, VOUT = 3.3 V,
IOUT = 750 mA		 f = 100 Hz 48 dB
f = 1 kHz 63 dB
f = 10 kHz 63 dB
f = 100 kHz 57 dB
f = 1 MHz 38 dB
VN Output noise voltage BW = 100 Hz to 100 kHz,
VIN = 4.3 V, VOUT = 3.3 V,
IOUT = 100 mA		 CNR = 0.001 μF 14.6 × VOUT μVRMS
CNR = 0.01 μF 14.3 × VOUT μVRMS
CNR = 0.1μF 13.9 × VOUT μVRMS
VEN(HI) Enable high (enabled) 2.2 V ≤ VIN ≤ 3.6 V, RL = 1 kΩ 1.2 V
3.6 V < VIN ≤ 6.5 V, RL = 1 kΩ 1.35 V
VEN(LO) Enable low (shutdown) RL = 1 kΩ 0 0.4 V
IEN(HI) Enable pin current, enabled VIN = VEN = 6.5 V 0.02 1 μA
tSTR Start-up time VOUT(NOM) = 3.3 V,
VOUT = 0%–90% VOUT(NOM),
RL = 3.3 kΩ, COUT = 4.7 μF		 CNR = 1 nF 0.1 ms
CNR = 10 nF 1.6 ms
UVLO Undervoltage lockout VIN rising, RL = 1 kΩ 1.86 2 2.10 V
UVLO hysteresis VIN falling, RL = 1 kΩ 75 mV
TSD Thermal shutdown temperature Shutdown, temperature increasing 160 °C
Reset, temperature decreasing 140 °C
(1) The TPS7A8001 (adjustable) does not include external resistor tolerances and is not tested at these conditions: VOUT = 0.8 V, 4.5 V ≤ VIN ≤ 6.5 V, and 750 mA ≤ IOUT ≤ 1 A because power dissipation is higher than maximum rating of the package.
(2) The TPS7A8012, TPS7A8018, and TPS7A8033 are not tested at these conditions: 4.5 V ≤ VIN ≤ 6.5 V, and 750 mA ≤ IOUT ≤ 1 A because power dissipation is higher than maximum rating of the package.
(3) VDO is not measured for fixed output voltage devices with VOUT < 1.7 V because minimum VIN = 2.2 V.
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