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参数资料
| 型号： | IRDC3870 |
| 厂商： | International Rectifier |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL REG SUPIRBUCK DC/DC |
| 产品变化通告： | (EP) Parts Discontinuation 25/May/2012 |
| 标准包装： | 1 |
| 系列： | * |
IR3870MPBF
TYPICAL OPERATING WAVEFORM (25 o C)
(Circuit of Figure 15, VCC = 3.3V, V5 = 5V, V IN = 12.6V, F = 500kHz, Unless otherwise noted)
CH1: Vout (500mV/div); 500uS/div
CH2: PHASE (10V/div)
CH3: EN (2V/div) CH4: PGOOD (5V/div)
Figure 9: Shutdown/EN at I OUT = 500mA
CH1: Vout (50mV/div); 20uS/div
CH2: Phase (10V/div)
Figure 10: Load Step (2A to 10A) Transient
(5A/us) at 12.6V IN : 50mV overshoot, 25mV
undershoot
CH1: Vout (50mV/div); 20uS/div
CH2: PHASE (10V/div)
Figure 11: FCCM/CCM transition from 0.5A
to 5A at 12.6V IN : 30mV overshoot, 15mV
undershoot
CH1: Vout (50mV/div); CH2: Phase (10V/div) CH4:
CPO (2V/div); Time: 2uS/div)
Figure 12: Charge Pump Off at I OUT = 1A
9
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