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参数资料
| 型号： | IRU3011CWTR |
| 厂商： | International Rectifier |
| 文件页数： | 4/13页 |
| 文件大小： | 0K |
| 描述： | IC CTRL SYNC BUCK 5BIT 20SOIC(W) |
| 标准包装： | 1,000 |
| 应用： | 控制器，Intel Pentium? III |
| 输入电压： | 5V，12V |
| 输出数： | 1 |
| 输出电压： | 1.3 V ~ 3.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC（宽型） |
| 包装： | 带卷 (TR) |
IRU3011
PIN DESCRIPTIONS
PIN#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PIN SYMBOL
NC
CS+
SS
D0
D1
D2
D3
D4
V5
V FB
NC
PGd
CS-
HDrv
NC
Gnd
LDrv
V12
OVP
Ct
PIN DESCRIPTION
No connection.
This pin is connected to the Drain of the power MOSFET of the Core supply and it
provides the positive sensing for the internal current sensing circuitry. An external resis-
tor programs the CS threshold depending on the R DS of the power MOSFET. An external
capacitor is placed in parallel with the programming resistor to provide high frequency
noise filtering.
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 for the synchronous MOSFET or the Catch diode (HICCUP) during current
limiting.
LSB input to the DAC that programs the output voltage. This pin can be pulled up exter-
nally by a 10K resistor to either 3.3V or 5V supply.
Input to the DAC that programs the output voltage. This pin can be pulled-up externally
by a 10K V resistor to either 3.3V or 5V supply.
Input to the DAC that programs the output voltage. This pin can be pulled-up externally
by a 10K resistor to either 3.3V or 5V supply.
MSB input to the DAC that programs the output voltage. This pin can be pulled-up exter-
nally by a 10K resistor to either 3.3V or 5V supply.
This pin selects a range of output voltages for the DAC.
5V supply voltage.
This pin is connected directly to the output of the Core supply to provide feedback to the
Error comparator.
No connection.
This pin is an open collector output that switches LO when the output of the converter is
not within ± 10% (typ) of the nominal output voltage. When PGd pin switches LO the
saturation voltage is less than 0.4V at 3mA.
This pin is connected to the Source of the power MOSFET for the Core supply and it
provides the negative sensing for the internal current sensing circuitry.
Output driver for the high side power MOSFET.
No connection.
This pin serves as the ground pin and must be connected directly to the ground plane. A
high frequency capacitor (0.1 to 1 m F) must be connected from V5 and V12 pins to this
pin for noise free operation.
Output driver for the synchronous power MOSFET.
This pin is connected to the 12 V supply and serves as the power Vcc pin for the output
drivers. A high frequency capacitor (0.1 to 1 m F) must be connected directly from this pin
to ground pin in order to supply the peak current to the power MOSFET during the
transitions.
Over-voltage comparator output.
This pin programs the oscillator frequency in the range of 50KHz to 500KHz with an
external capacitor connected from this pin to the ground.
4
www.irf.com
Rev. 1.6
08/20/02
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRU3012CWTR | 功能描述:IC REG BUCK SYNC 20SOIC(W) RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
| IRU3013 | 制造商:IRF 制造商全称:International Rectifier 功能描述:VRM 8.5 COMPATIBLE 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH TRIPLE LDO CONTROLLER |
| IRU3013CQ | 制造商:IRF 制造商全称:International Rectifier 功能描述:VRM 8.5 COMPATIBLE 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH TRIPLE LDO CONTROLLER |
| IRU3013CW | 功能描述:IC CNTRL 5BIT TRPL LDO 24-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| IRU3013CWPBF | 制造商:International Rectifier 功能描述:DC DC Cntrlr Quad-OUT Synchronous Buck Controller/PWM DC to DC Controller 24-Pin SOIC W Tube |
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