参数资料
型号: IP2003TR
厂商: International Rectifier
文件页数: 6/9页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 40A LGA
标准包装: 1,000
系列: iPOWIR™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 3.3 V
输入电压: 3 V ~ 13.2 V
频率 - 开关: 300kHz ~ 1MHz
电流 - 输出: 40A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 电源块(LGA)
包装: 带卷 (TR)
供应商设备封装: LGA(11x11)
iP2003
Calculating SOA Temperature:
(Fig.
(Fig.
(Fig.
(Fig.
3)
4)
5)
6)
SOA Temperature Adjustment
SOA Temperature Adjustment
SOA Temperature Adjustment
SOA Temperature Adjustment
for
for
for
for
input voltage ≈ -0.5°C
output voltage ≈ 3.3°C
frequency ≈ -1.2°C
inductor value ≈ 0.25°C
T X axis intercept temp adjustment = - 0.5°C + 3.3°C - 1.2°C + 0.25°C ≈ 1.85°C
Assuming T CASE = 110°C & T PCB = 100°C:
The following example shows how the SOA current is adjusted for a T X increase of 1.85°C.
Case Temperature (°C)
0
10
20
30
40
50
60
70
80
90
100
110
120
42
40
38
36
34
32
30
28
26
24
22
T X
20
18
16
14
12
10
8
6
4
2
0
V IN = 12V
V OUT = 1.3V
f SW = 1MHz
L=0.3uH
Safe
Operating
Area
0
10
20
30
40
50
60
70
80
90
100
110
120
PCB Temperature (oC)
P IN = V IN Average x I IN Average
P DD = V DD Average x I DD Average
P OUT = V OUT Average x I OUT Average
P LOSS = (P IN + P DD ) - P OUT
Average
Input
Current
(I IN )
A
DC
V
Average
Input
Voltage
PWM
90%
10%
(V IN )
Average
VDD
Current
(I DD )
PRDY
ENABLE
PWM
V IN
V SW
Average Output
Current (I OUT )
A
90%
Average
VDD
Voltage
(V DD )
V
DC
A
V DD
iP2003
P GND
Averaging
V SW
10%
Circuit
V
Average
Output
Voltage
(V OUT )
t d(on)
t d(off)
6
Fig. 8: Power Loss Test Circuit
Fig. 9: Timing Diagram
www.irf.com
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