参数资料
型号: IP2003TR
厂商: International Rectifier
文件页数: 5/9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
Applying the Safe Operating Area (SOA) Curve
The SOA graph incorporates power loss and thermal resistance information in a way that allows one to solve for maximum
current capability in a simplified graphical manner. It incorporates the ability to solve thermal problems where heat is drawn
out through the printed circuit board and the top of the case.
Procedure
42
0
10
20
30
40
Case Temperature (oC )
50 60 70
80
90
100
110
120
40
1) Draw a line from Case Temp axis at T CASE to the PCB
Temp axis at T PCB .
38
36
34
32
30
2) Draw a vertical line from the T X axis intercept to the SOA
curve.
3) Draw a horizontal line from the intersection of the vertical
line with the SOA curve to the Y-axis. The point at which
the horizontal line meets the Y-axis is the SOA current.
28
26
24
22
20
18
16
14
12
10
8
6
4
V IN = 12V
V OUT = 1.3V
f SW = 1MHz
L=0.3uH
Safe
Operating
Area
T X
2
0
0
10
20
30
40
50
60
70
80
90
100
110
120
PCB Temperature (oC)
Calculating Power Loss and SOA for Different Operating Conditions
To calculate power loss for a given set of operating conditions, the following procedure should be followed:
Determine the maximum current for each iP2003 and obtain the maximum power loss from Fig 1. Use the curves in
Figs. 3, 4, 5 and 6 to obtain normalized power loss values that match the operating conditions in the application. The
maximum power loss under the operating conditions is then the product of the power loss from Fig. 1 and the normal-
ized values.
To calculate the SOA for a given set of operating conditions, the following procedure should be followed:
Determine the maximum PCB temperature and Case temperature at the maximum operating current of each iP2003.
Obtain the SOA temperature adjustments that match the operating conditions in the application from Figs. 3, 4, 5 and
6. Then, add the sum of the SOA temperature adjustments to the Tx axis intercept in Fig 2.
The example below explains how to calculate maximum power loss and SOA.
Example:
Operating Conditions
Output Current = 40A
Sw Freq= 900kHz
Calculating Maximum Power Loss:
Input Voltage = 10V
Inductor = 0.2μH
Output Voltage = 3.3V
T PCB = 100°C, T CASE = 110°C
(Fig. 1)
(Fig. 3)
(Fig. 4)
(Fig. 5)
(Fig. 6)
Maximum power loss = 15W
Normalized power loss for input voltage ≈ 0.98
Normalized power loss for output voltage ≈ 1.14
Normalized power loss for frequency ≈ 0.94
Normalized power loss for inductor value ≈ 1.013
Calculated Maximum Power Loss for given conditions = 15W x 0.98 x 1.14 x 0.94 x 1.013 ≈ 15.96W
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IP2003TRPBF 功能描述:开关变换器、稳压器与控制器 SYNC BUCK MULTIPHASE 40A 1.0 MHz iPOWIR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel
IP-2003X-W1 制造商:Black Box Corporation 功能描述:1 year warranty for IP-2003X
IP-2003X-W3 制造商:Black Box Corporation 功能描述:3 year warranty for IP-2003X
IP2004 功能描述:DC/DC 开关控制器 SYNC LGA PWR BLOCK 40A iPOWIR 1.5MHz RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
IP2004TR 功能描述:DC/DC 开关控制器 SYNC LGA PWR BLOCK 40A iPOWIR 1.5MHz RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK