参数资料
型号: IRDC3871
厂商: International Rectifier
文件页数: 9/21页
文件大小: 0K
描述: BOARD EVAL FOR IRDC3871
标准包装: 1
系列: SupIRBuck™
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 1.05V
电流 - 输出: 8A
输入电压: 12V
稳压器拓扑结构: 降压
频率 - 开关: 300kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: IR3871
IR3871MPBF
TYPICAL OPERATING DATA
Tested with demoboard shown in Figure 7, VIN = 12V, VCC = 5V, Vout = 1.05V, Fs = 300kHz, T A = 25 o C, no airflow,
unless otherwise specified
EN
PGOOD
SS
VOUT
EN
PGOOD
SS
VOUT
5V/div 5V/div 1V/div 500mV/div
5ms/div
5V/div 5V/div 1V/div 500mV/div
200μs/div
VOUT
PHASE
i L
Figure 8: Startup
Figure 9: Shutdown
VOUT
PHASE
i L
20mV/div 5V/div 2A/div
10μs/div
20mV/div 5V/div 5A/div
2μs/div
PGOOD
SS
VOUT
IOUT
Figure 10: DCM (I OUT = 0.1A)
Figure 11: CCM (I OUT = 6A)
PGOOD
FB
VOUT
i L
5V/div 1V/div 1V/div 10A/div
1ms/div
5V/div 1V/div 500mV/div 2A/div
50μs/div
Figure 12: Over Current Protection
(tested by shorting VOUT to PGND)
Figure 13: Over Voltage Protection
(tested by shorting FB to V OUT )
9
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