ZHCS803E June   2013  – February 2020 LMZ31704

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     简化应用
  4. 4 修订历史记录
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Package Specifications
    5. 5.5 Thermal Information
    6. 5.6 Electrical Characteristics
  6. 6 Device Information
    1. 6.1 Functional Block Diagram
    2.     Pin Functions
  7. 7 Typical Characteristics (PVIN = VIN = 12 V)
  8. 8 Typical Characteristics (PVIN = VIN = 5 V)
  9. 9 Typical Characteristics (PVIN = 3.3 V, VIN = 5 V)
  10. 10Application Information
    1. 10.1  Adjusting the Output Voltage
    2. 10.2  Capacitor Recommendations for the LMZ31704 Power Supply
      1. 10.2.1 Capacitor Technologies
        1. 10.2.1.1 Electrolytic, Polymer-Electrolytic Capacitors
        2. 10.2.1.2 Ceramic Capacitors
        3. 10.2.1.3 Tantalum, Polymer-Tantalum Capacitors
      2. 10.2.2 Input Capacitor
      3. 10.2.3 Output Capacitor
    3. 10.3  Transient Response
    4. 10.4  Transient Waveforms
    5. 10.5  Application Schematics
    6. 10.6  Custom Design With WEBENCH® Tools
    7. 10.7  VIN and PVIN Input Voltage
    8. 10.8  3.3 V PVIN Operation
    9. 10.9  Power Good (PWRGD)
    10. 10.10 SYNC_OUT
    11. 10.11 Parallel Operation
    12. 10.12 Light Load Efficiency (LLE)
    13. 10.13 Power-Up Characteristics
    14. 10.14 Pre-Biased Start-up
    15. 10.15 Remote Sense
    16. 10.16 Thermal Shutdown
    17. 10.17 Output On/Off Inhibit (INH)
    18. 10.18 Slow Start (SS/TR)
    19. 10.19 Overcurrent Protection
    20. 10.20 Synchronization (CLK)
    21. 10.21 Sequencing (SS/TR)
    22. 10.22 Programmable Undervoltage Lockout (UVLO)
    23. 10.23 Layout Considerations
    24. 10.24 EMI
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
        1. 11.1.1.1 使用 WEBENCH® 工具创建定制设计
    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 支持资源
    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
    1. 12.1 Tape and Reel Information

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

10.3 Transient Response

Table 5. Output Voltage Transient Response

CIN1 = 3x 22 µF CERAMIC, CIN2 = 100 µF POLYMER-TANTALUM
VOUT(V) VIN(V) COUT1 CERAMIC COUT2 BULK VOLTAGE DEVIATION (mV) RECOVERY TIME (µs)
1 A LOAD STEP, (1 A/µs) 2 A LOAD STEP, (1 A/µs)
0.6 5 500 µF 220 µF 15 30 90
12 500 µF 220 µF 15 30 90
0.9 5 300 µF 220 µF 20 40 95
300 µF 470 µF 18 35 95
12 300 µF 220 µF 20 35 95
300 µF 470 µF 18 30 95
1.2 5 200 µF 220 µF 30 50 100
200 µF 470 µF 25 45 100
12 200 µF 220 µF 25 45 100
200 µF 470 µF 20 40 100
1.8 5 200 µF 220 µF 40 70 110
200 µF 470 µF 35 65 110
12 200 µF 220 µF 35 65 120
200 µF 470 µF 30 60 120
3.3 5 100 µF 220 µF 55 105 130
12 100 µF 220 µF 65 115 150