ZHCSJS5D March 2011 – May 2019 LM21215A
PRODUCTION DATA.
- 1 特性
- 2 应用
- 3 说明
- 4 修订历史记录
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11器件和文档支持
- 12机械、封装和可订购信息
6.6 Typical Characteristics
Unless otherwise specified: VIN = 5 V, VOUT = 1.2 V, LF = 0.56 µH (1.8 mΩ RDCR), CSS = 33 nF, fSW = 500 kHz, TA = 25°C for efficiency curves, loop gain plots and waveforms, and TJ = 25°C for all others.
Figure 1. Efficiency 
Figure 3. Efficiency (VOUT = 2.5 V, FSW= 500 kHz, Inductor P/N SER2010-601MLD) 
Figure 5. Line Regulation 
Figure 7. Non-Switching IAVIN and IPVIN vs Temperature 
Figure 9. Enable Threshold and Hysteresis vs Temperature 
Figure 11. Enable Low Current vs Temperature 
Figure 13. Minimum On-Time vs Temperature 
Figure 15. Peak Current Limit vs Temperature 
Figure 17. SYNC Signal Acquired, 10 µs/div 
Figure 19. Startup with Prebiased Output, 2 ms/Div 
Figure 21. Startup with Tracking Signal Applied, 200 ms/Div 
Figure 2. Efficiency 
Figure 4. Load Regulation 
Figure 6. Non-Switching IQ(TOTAL) vs VIN 
Figure 8. Feedback (FB) Voltage vs Temperature 
Figure 10. UVLO Threshold and Hysteresis vs Temperature 
Figure 12. OVP/UVP Threshold vs Temperature 
Figure 14. MOSFET On-State Resistance vs Temperature 
Figure 16. SYNC Signal Removed, 4 µs/Div 
Figure 18. Load Transient Response, 100 µs/Div 
Figure 20. Startup with SS/TRK Open Circuit, 200 µs/Div 
Figure 22. Output Overcurrent Condition, 10 µs/Div