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参数资料
| 型号： | IRU3055CQTR |
| 厂商： | International Rectifier |
| 文件页数： | 4/26页 |
| 文件大小： | 0K |
| 描述： | IC CTRL SYNC 3-PHASE 36-QSOP |
| 标准包装： | 1 |
| 应用： | 控制器，Intel Pentium? IV |
| 输入电压： | 5V，12V |
| 输出数： | 1 |
| 输出电压： | 1.08 V ~ 1.85 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-QSOP |
| 供应商设备封装： | 36-QSOP |
| 包装： | 剪切带 (CT) |
| 产品目录页面： | 1384 (CN2011-ZH PDF) |
| 其它名称： | *IRU3055CQTR IRU3055CQCT |
IRU3055
D4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
D3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
D1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Vs
1.075
1.100
1.125
1.150
1.175
1.200
1.225
1.250
1.275
1.300
1.325
1.350
1.375
1.400
1.425
1.450
D4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
D1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Vs
1.475
1.500
1.525
1.550
1.575
1.600
1.625
1.650
1.675
1.700
1.725
1.750
1.475
1.800
1.825
1.850
Table 1 - Set point voltage (Vs) vs. VID codes.
PIN DESCRIPTIONS
PIN#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PIN SYMBOL
Rt
Comp
Fb
SS
CS1
CS2
CS3
Vcc
V SET
D0
D1
D2
D3
D4
PIN DESCRIPTION
This pin programs the oscillator frequency in the range of 50KHz to 500KHz with an
external resistor connected from this pin to the ground.
Compensation for error amplifier.
This pin is connected directly to the output of the Core supply to provide feedback to the
Error amplifier.
This pin provides the soft-start for the switching regulator. An internal current source
charges an external capacitor that is connected from this pin to the ground which ramps
up the outputs of the switching regulator, preventing the outputs from overshooting as
well as limiting the input current. The second function of the Soft-Start cap is to provide
long off time (HICCUP) for the synchronous MOSFET during current limiting.
Current sense feedback for channel 1, 2, 3.
5V supply voltage.
Output of the DAC.
LSB input to the DAC that programs the output voltage. This pin is internally connected
to 3.3V by a 16K resistor. This pin can be pulled up externally by a 10K resistor to 5V
supply. This pin programs the output voltage in 25mV steps based on the VID table.
Input to the DAC that programs the output voltage. This pin is internally connected to
3.3V by a 16K resistor. This pin can be pulled up externally by a 10K resistor to 5V
supply.
Input to the DAC that programs the output voltage. This pin is internally connected to
3.3V by a 16K resistor. This pin can be pulled up externally by a 10K resistor to 5V
supply.
Input to the DAC that programs the output voltage. This pin is internally connected to
3.3V by a 16K resistor. This pin can be pulled up externally by a 10K resistor to 5V
supply.
MSB input to the DAC that programs the output voltage. This pin is internally connected
to 3.3V by a 16K resistor. This pin can be pulled up externally by a 10K resistor to 5V
supply.
4
www.irf.com
Rev. 1.4
08/13/02
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