LTC3711 - LTC3711是5-Bit Adjustable, Wide Operating Range, No RSENSE? Step-Down Controller
LTC3711是Linear公司的一款数字可编程的降压型稳压器产品，LTC3711是5-Bit Adjustable, Wide Operating Range, No RSENSE? Step-Down Controller，本站介绍了LTC3711的封装应用图解、特点和优点、功能等，并给出了与LTC3711相关的凌力尔特元器件型号供参考。
LTC3711 - 5-Bit Adjustable, Wide Operating Range, No RSENSE? Step-Down Controller
LTC3711 - 5-Bit Adjustable, Wide Operating Range, No RSENSE? Step-Down Controller - Linear Technology（凌力尔特）
功能描述
The LTC3711 is a synchronous step-down switching regulator controller for CPU power. An output voltage between 0.925V and 2.000V is selected by a 5-bit code (Intel mobile VID specification). The controller uses a valley current control architecture to deliver very low duty cycles without requiring a sense resistor. Operating frequency is selected by an external resistor and is compensated for variations in VIN and VOUT.
Discontinuous mode operation provides high efficiency operation at light loads. A forced continuous control pin reduces noise and RF interference and can assist secondary winding regulation by disabling discontinuous mode operation when the main output is lightly loaded.
Fault protection is provided by internal foldback current limiting, an output overvoltage comparator and optional short-circuit shutdown timer. Soft-start capability for supply sequencing is accomplished using an external timing capacitor. The regulator current limit level is user programmable. Wide supply range allows operation from 4V to 36V at the input.
特点
5-Bit Programmable Output Voltage: 0.925V to 2V No Sense Resistor Required True Current Mode Control 2% to 90% Duty Cycle at 200kHz tON(MIN) < 100ns Supports Active Voltage Positioning Extremely Fast Transient Response Stable with Ceramic COUT Dual N-Channel MOSFET Synchronous Drive Power Good Output Voltage Monitor Wide VIN Range: 4V to 36V ±1% 0.8V Reference Adjustable Current Limit Adjustable Switching Frequency Programmable Soft-Start Output Overvoltage Protection Optional Short-Circuit Shutdown Timer Micropower Shutdown: IQ < 30μA Available in 24-Lead Narrow SSOP Package应用
Power Supplies for Mobile Pentium? Processors Notebook and Palmtop Computers, PDAs以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
| LTC3711EGN | SSOP-24 | E | $4.14 | $3.50 |
| LTC3711EGN#PBF | SSOP-24 | E | $4.14 | $3.50 |
| LTC3711EGN#TR | SSOP-24 | E | | $3.60 |
| LTC3711EGN#TRPBF | SSOP-24 | E | | $3.60 |
下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
LT8471 - 具 2A 开关和同步功能的双通道、多拓扑 DC/DC 转换器LT3080 - 可调 1.1A、单电阻、低压差稳压器LT8705 - 80V VIN 和 VOUT 同步、四开关、降压-升压型 DC/DC 控制器LTC3789 - 高效率、同步、四开关降压-升压型控制器LT3796 - 具双电流检测的 100V 恒定电流和恒定电压控制器LTC3720 - Single Phase VRM8.5 Current Mode Step-Down ControllerLTC3816 - 用于 Intel IMVP-6/IMVP-6.5 CPU 的单相、宽 VIN 范围 DC/DC 控制器LTC3714 - 具内部运放的 Intel 兼容、宽工作范围、降压型控制器LT3757 - 升压、反激式、SEPIC 和负输出控制器LT8614 - 具 2.5μA 静态电流的 42V、4A 同步降压型 Silent Switcher
下面可能是您感兴趣的Linear公司数字可编程的降压型稳压器元器件
LTC2863-2 - LTC2863-2是具 ±60V 故障保护功能的 3V 至 5.5V RS485 / RS422 收发器LTC3855 - LTC3855是采用差分远端采样的双通道、多相、同步 DC/DC 控制器LTC2383-16 - LTC2383-16是具串行接口的 16 位、1Msps、低功率 SAR ADCLTC2631-10 - LTC2631-10是具 10ppm/oC 基准的单通道 12 / 10 / 8 位 I2C VOUT DACLT2940 - LT2940是功率和电流监视器LTC2908 - LTC2908是精准六路输入电源监视器LT1056 - LT1056是精准、高速、JFET 输入运算放大器LF156AJ8 - LF156AJ8是JFET-Input Operational Amplifiers High SpeedLTC3546 - LTC3546是双通道、同步、3A/1A 或 2A/2A 可配置降压型 DC/DC 稳压器LT1225 - LT1225是Very High Speed Operational Amplifier
