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参数资料
| 型号： | IP1201PBF |
| 厂商： | International Rectifier |
| 文件页数： | 8/29页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 30A 198BGA |
| 产品变化通告： | (EP) Parts Discontinuation 25/May/2012 |
| 标准包装： | 10 |
| 系列： | iPOWIR™ |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.8 V ~ 3.3 V |
| 输入电压： | 3.14 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 400kHz |
| 电流 - 输出： | 30A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 198-BGA（159 凸块） |
| 包装： | 散装 |
| 供应商设备封装： | BGA（15.5x9.25） |
| 配用： | IRDCIP1201-A-ND - BUCK CONV REF DESIGN KIT IP1201 |
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iP1201PbF
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. Case Temperature ( oC)
Procedure
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1) Draw a line from Case Temp axis at T CASE to the PCB
Temp axis at T PCB .
2) Draw a vertical line from the T X axis intercept to the SOA
curve. (see AN-1047 for further explanation of T X )
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.
4) If no top sided heatsinking is available, assume T CASE
temperature of 125 °C for worst case performance.
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Safe
Operating
Area
V IN = 5V
V OUT1 = V OUT2 = 1.5V
I OUT = 15A
f SW = 300kHz
L = 1.8uH
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2
1
T X
0
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PCB Temperature (oC)
Adjusting the Power Loss and SOA curves for different operating conditions
To make adjustments to the power loss curves in Fig. 2, multiply the normalized value obtained from the curves in Figs. 4,
5, 6 or 7 by the value indicated on the power loss curve in Fig. 2. Remember that the power loss in Fig 2. is the power loss
for 2 outputs operating with the same output voltage. If differing output voltages are used the initial power loss for each
channel needs to be divided by 2. Then if multiple adjustments are required, multiply all of the normalized values together,
then multiply that product by the value indicated on the power loss curve in Fig. 2. The resulting product is the final power
loss based on all factors. See example no. 1.
To make adjustments to the SOA curve in Fig. 3, determine your maximum PCB Temp & Case Temp at the maximum operating
current of each iP1201PbF. Then, add the correction temperature from the normalized curves in Figs. 4, 5, 6 or 7 to the T X axis
intercept (see procedure no. 2 above) in Fig. 3. When multiple adjustments are required, add all of the temperatures
together, then add the sum to the T X axis intercept in Fig. 3. See example no. 2.
Note: First check Fig. 8, Fig. 9 or Fig. 10 for maximum current capability
Operating Conditions for the following examples:
Output1
Output Current = 10A Input Voltage = 3.3V
Output Voltage = 1.5V Sw Freq= 200kHz
Inductor = 1.75 μ H
Output2
Output Current = 13A
Output Voltage = 1.0V
Input Voltage =3.3V
Sw Freq= 200kHz
Inductor = 1.75 μ H
Example 1) Adjusting for Maximum Power Loss:
Output1 (Fig. 2) Maximum power loss = 5.3W /2 = 2.65W
(Fig. 4) Normalized power loss for input voltage ≈ 0.97
(Fig. 5) Normalized power loss for output voltage ≈ 1.0
(Fig. 6) Normalized power loss for frequency ≈ 0.918
(Fig. 7) Normalized power loss for inductor value ≈ 1.0
Adjusted Power Loss = 2.65W x 0.97 x 1.0 x 0.918 x 1.0 ≈ 2.36W
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IP1201TR | 功能描述:开关变换器、稳压器与控制器 DUAL OUTPUT 2-Phase 3.14 to 5V 400kHz 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 |
| IP1201TRPBF | 功能描述:开关变换器、稳压器与控制器 DUAL OUTPUT 2-Phase 3.14 to 5V 400kHz 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 |
| IP1202 | 功能描述:开关变换器、稳压器与控制器 DUAL OUTPUT 2-Phase 5.5V to 13.2V 15A 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 |
| IP1202PBF | 功能描述:开关变换器、稳压器与控制器 DUAL OUTPUT 2-Phase 5.5V to 13.2V 15A 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 |
| IP1202PBF-EL | 制造商:International Rectifier 功能描述: |
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