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参数资料
| 型号： | LFC789D25-ADJCDR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 8/10页 |
| 文件大小： | 145K |
| 代理商： | LFC789D25-ADJCDR |
LFC789D25-ADJ
DUAL LINEAR FET CONTROLLER
SLLS565 – MARCH 2003
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
layout
Another benefit of a separate controller and pass element is that the heat dissipated in the external NMOS can
be well isolated from the controller, which has very low power dissipation. Both of these factors allow the
bandgap reference and control circuitry to operate over a more stable temperature range, resulting in very good
accuracy over full-load conditions. The LFC789D25-ADJ should be placed as close as possible to the external
pass element because short PCB traces allow minimal EMI coupling to both the drive and sense lines.
For best accuracy, connect the SEN pins as close to the load as possible, not to the source of the NMOS. Also,
place the SEN trace in the same direction and plane as the power trace that connects the source of the NMOS
to the load. Also, it is good practice to keep the load current return path as far as possible from the SEN trace.
Place the 0.1-
F bypass capacitor as close as possible to the VCC pin and connect it directly to the ground plane.
The GND pin of the LFC789D25-ADJ should be connected to the ground plane.
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| LFC789D25CD | 功能描述:低压差控制器 - LDO Dual Linear FET Controller RoHS:否 制造商:Micrel 最大输入电压:5.5 V 输出电压:Adjustable 输出电流:10 mA 负载调节: 输出类型:Adjustable, Fixed 输出端数量:1 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-6 |
| LFC789D25CDE4 | 功能描述:低压差控制器 - LDO Dual Linear FET Controller RoHS:否 制造商:Micrel 最大输入电压:5.5 V 输出电压:Adjustable 输出电流:10 mA 负载调节: 输出类型:Adjustable, Fixed 输出端数量:1 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-6 |
| LFC789D25CDG4 | 功能描述:低压差控制器 - LDO Dual Lin FET Cntrlr RoHS:否 制造商:Micrel 最大输入电压:5.5 V 输出电压:Adjustable 输出电流:10 mA 负载调节: 输出类型:Adjustable, Fixed 输出端数量:1 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-6 |
| LFC789D25CDR | 功能描述:低压差控制器 - LDO Dual Linear FET Controller RoHS:否 制造商:Micrel 最大输入电压:5.5 V 输出电压:Adjustable 输出电流:10 mA 负载调节: 输出类型:Adjustable, Fixed 输出端数量:1 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-6 |
| LFC789D25CDRE4 | 功能描述:低压差控制器 - LDO Dual Linear FET Controller RoHS:否 制造商:Micrel 最大输入电压:5.5 V 输出电压:Adjustable 输出电流:10 mA 负载调节: 输出类型:Adjustable, Fixed 输出端数量:1 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-6 |
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