参数资料
型号: IR3876MTRPBF
厂商: International Rectifier
文件页数: 9/21页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 12A 17QFN
产品培训模块: SupIRBuck? Family and POL Design Tools Overview
标准包装: 4,000
系列: SupIRBuck™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.5 V ~ 12 V
输入电压: 3 V ~ 21 V
频率 - 开关: 可调至 1MHz
电流 - 输出: 12A
同步整流器:
工作温度: 0°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 17-PowerVQFN
包装: 带卷 (TR)
供应商设备封装: PQFN(5x6)
IR3876MPBF
TYPICAL OPERATING DATA
Tested with demoboard shown in Figure 7, VIN = 12.6V, VCC = 5V, Vout = 1.05V, Fs = 300kHz, TA = 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
Figure 8: Startup
Figure 9: Shutdown
VOUT
PHASE
PHASE
i L
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 = 12A)
PGOOD
FB
VOUT
i L
5V/div 1V/div 1V/div 10A/div
2ms/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 VOUT)
9
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