ZHCSHN3D February   2018  – August 2019 TPS7A05

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用电路
      2.      接地电流与输出电流间的关系
  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 Switching Characteristics
    7. 6.7 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 Excellent Transient Response
      2. 7.3.2 Active Discharge
      3. 7.3.3 Low IQ in Dropout
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Enable
      6. 7.3.6 Internal Foldback Current Limit
      7. 7.3.7 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Mode
      2. 7.4.2 Dropout Mode
      3. 7.4.3 Disable Mode
  8. 8 Application 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 Special Considerations When Ramping Down VIN and Enable
      4. 8.1.4 Load Transient Response
      5. 8.1.5 Dropout Voltage
        1. 8.1.5.1 Behavior When Transitioning From Dropout Into Regulation
        2. 8.1.5.2 Behavior of Output Resulting From Line Transient When in Dropout
      6. 8.1.6 Undervoltage Lockout (UVLO) Operation
      7. 8.1.7 Power Dissipation (PD)
        1. 8.1.7.1 Estimating Junction Temperature
        2. 8.1.7.2 Recommended Area for Continuous Operation
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Design Considerations
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 Spice 模型
      2. 11.1.2 器件命名规则
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 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

6.7 Typical Characteristics

at operating temperature TJ = 25°C, VIN = VOUT(NOM) + 0.5 V or 2.0 V (whichever is greater), IOUT = 1 mA, VEN = VIN, CIN = 1 µF, and COUT = 1 µF (unless otherwise noted)
TPS7A05 D001_SBVS254.gif
VOUT = 3.3 V, includes IQ in dropout
Figure 1. IQ vs VIN and Temperature
TPS7A05 D044_SBVS254.gif
VEN < 0.4 V
Figure 3. ISHDN vs VIN and Temperature
TPS7A05 D043_SBVS254.gif
Figure 5. IGND vs IOUT up to 200 mA
TPS7A05 D008_SBVS254.gif
Output current slew rate = 6.6 mA/µs
Figure 7. IOUT Transient 0 mA to 200 mA
TPS7A05 D046_SBVS254.gif
Output current slew rate = 100 mA/µs
Figure 9. IOUT Transient 0 mA to 100 mA
TPS7A05 D048_SBVS254.gif
Output current slew rate = 200 mA/µs
Figure 11. IOUT Transient 0 mA to 200 mA
TPS7A05 D050_SBVS254.gif
Output current slew rate = 100 mA/µs
Figure 13. IOUT Transient 1 mA to 100 mA
TPS7A05 D052_SBVS254.gif
Output current slew rate = 200 mA/µs
Figure 15. IOUT Transient 1 mA to 200 mA
TPS7A05 D012_SBVS254.gif
IOUT = 100 mA, input voltage slew rate = 0.6 V/µs
Figure 17. VIN Transient
TPS7A05 D054_SBVS254.gif
IOUT = 150 mA, input voltage slew rate = 0.1 V/µs
Figure 19. VIN Transient
TPS7A05 D013_SBVS254.gif
VOUT = 1.8 V
Figure 21. Dropout vs IOUT and Temperature
TPS7A05 D027_SBVS254.gif
Figure 23. Dropout vs VIN and Temperature
TPS7A05 D006_SBVS254.gif
VOUT = 0.8 V
Figure 25. Output Accuracy VIN and Temperature
TPS7A05 D005_SBVS254.gif
VOUT = 1.8 V
Figure 27. Output Accuracy VIN and Temperature
TPS7A05 D003_SBVS254.gif
VOUT = 1.8 V
Figure 29. Foldback Current Limit vs IOUT and Temperature
TPS7A05 D030_SBVS254.gif
VOUT = 0.8 V, IOUT = 30 mA
Figure 31. Startup With VEN = VIN
TPS7A05 D032_SBVS254.gif
VOUT = 0.8 V, IOUT = 1 mA
Figure 33. Startup With Separate VIN and VEN
TPS7A05 D034_SBVS254.gif
VOUT = 1.8 V, IOUT = 30 mA
Figure 35. Startup With Separate VIN and VEN
TPS7A05 D016_SBVS254.gif
VOUT = 1.8 V, IOUT = 200 mA, COUT = 1 µF, CIN = 0 µF
Figure 37. PSRR vs Frequency and VIN
TPS7A05 D021_SBVS254.gif
VOUT = 0.8 V, VIN = 1.4 V, COUT = 1 µF, CIN = 0 µF
Figure 39. PSRR vs Frequency and IOUT
TPS7A05 D019_SBVS254.gif
VOUT = 3.3 V, VIN = 3.8 V, COUT = 1 µF, CIN = 0 µF
Figure 41. PSRR vs Frequency and IOUT
TPS7A05 D024_SBVS254.gif
VOUT = 1.8 V, VIN = 2.8 V, COUT = 1 µF
Figure 43. Output Noise vs Frequency and IOUT
TPS7A05 D028_SBVS254.gif
VIN = VOUT + 1 V, IOUT = 200 mA, COUT = 1 µF
Figure 45. Output Noise vs Frequency and VOUT
TPS7A05 D037_SBVS254.gif
Figure 47. Enable High and Low Thresholds vs
Temperature
TPS7A05 D002_SBVS254.gif
VEN < 0.4 V
Figure 2. ISHDN vs VIN and Temperature
TPS7A05 D042_SBVS254.gif
Figure 4. IGND vs IOUT up to 10 mA
TPS7A05 D036_SBVS254.gif
Output current slew rate = 3.3 mA/µs
Figure 6. IOUT Transient 0 mA to 100 mA
TPS7A05 D045_SBVS254.gif
Output current slew rate = 50 mA/µs
Figure 8. IOUT Transient 0 mA to 50 mA
TPS7A05 D047_SBVS254.gif
Output current slew rate = 150 mA/µs
Figure 10. IOUT Transient 0 mA to 150 mA
TPS7A05 D049_SBVS254.gif
Output current slew rate = 50 mA/µs
Figure 12. IOUT Transient 1 mA to 50 mA
TPS7A05 D051_SBVS254.gif
Output current slew rate = 150 mA/µs
Figure 14. IOUT Transient 1 mA to 150 mA
TPS7A05 D053_SBVS254.gif
CIN = COUT = 10 µF, output current slew rate = 3 mA/µs
Figure 16. IOUT Transient 3 µA to 3 mA
TPS7A05 D011_SBVS254.gif
IOUT = 200 mA, input voltage slew rate = 0.6 V/µs
Figure 18. VIN Transient
TPS7A05 D055_SBVS254.gif
IOUT = 20 mA, input voltage slew rate = 0.01 V/µs
Figure 20. VIN Transient
TPS7A05 D014_SBVS254.gif
VOUT = 3.3 V
Figure 22. Dropout vs IOUT and Temperature
TPS7A05 D009_SBVS254.gif
VOUT = 0.8 V
Figure 24. Line Regulation VIN and Temperature
TPS7A05 D004_SBVS254.gif
VOUT = 1.8 V
Figure 26. Line Regulation VIN and Temperature
TPS7A05 D010_SBVS254.gif
VOUT = 1.8 V
Figure 28. Load Regulation vs IOUT and Temperature
TPS7A05 D029_SBVS254.gif
VOUT = 0.8 V, IOUT = 1 mA
Figure 30. Startup With VEN = VIN
TPS7A05 D031_SBVS254.gif
VOUT = 1.8 V, IOUT = 30 mA
Figure 32. Startup With VEN = VIN
TPS7A05 D033_SBVS254.gif
VOUT = 0.8 V, IOUT = 30 mA
Figure 34. Startup With Separate VIN and VEN
TPS7A05 D022_SBVS254.gif
VOUT = 0.8 V, IOUT = 200 mA, COUT = 1 µF, CIN = 0 µF
Figure 36. PSRR vs Frequency and VIN
TPS7A05 D020_SBVS254.gif
VOUT = 3.3 V, IOUT = 200 mA, COUT = 1 µF, CIN = 0 µF
Figure 38. PSRR vs Frequency and VIN
TPS7A05 D015_SBVS254.gif
VOUT = 1.8 V, VIN = 2.8 V, COUT = 1 µF, CIN = 0 µF
Figure 40. PSRR vs Frequency and IOUT
TPS7A05 D025_SBVS254.gif
VOUT = 1.8 V, IOUT = 200 mA, COUT = 1 µF
Figure 42. Output Noise vs Frequency and VIN
TPS7A05 D026_SBVS254.gif
VOUT = 1.8 V, VIN = 2.8 V, IOUT = 200 mA
Figure 44. Output Noise vs Frequency and COUT
TPS7A05 D035_SBVS254.gif
Figure 46. UVLO VIN Rising and Falling Thresholds vs Temperature