参数资料
型号: IRDC3865
厂商: International Rectifier
文件页数: 10/22页
文件大小: 0K
描述: BOARD EVAL SUPIRBUCK IR3865
产品培训模块: SupIRBuck? Family and POL Design Tools Overview
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: 10A
输入电压: 7 ~ 16 V
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: IR3865
IR3865MPBF
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
VOUT
PHASE
VOUT
PHASE
i L
i L
50mV/div 5V/div 2A/div
50μs/div
20mV/div 5V/div 5A/div
50μs/div
Figure 14: Load Transient 0-4A
Figure 15: Load Transient 6-10A
FCCM
FCCM
PHASE
VOUT
i L
PHASE
VOUT
i L
5V/div 10V/div 500mV/div 5A/div
10μs/div
2V/div 10V/div 500mV/div 5A/div
5μs/div
Figure 16: DCM/FCCM Transition
Figure 18: Thermal Image at VIN = 12V, I OUT =
10A (IR3865: 81 o C, Inductor: 52 o C, PCB: 39 o C)
8/8/2012 Rev3.1
Figure 17: FCCM/DCM Transition
Figure 19: Thermal Image at VIN = 16V, I OUT =
10A (IR3865: 84 o C, Inductor: 53 o C, PCB: 39 o C)
10
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