LTC3713 - LTC3713是Low Input Voltage, High Power, No R_SENSE^TM Synchronous Buck DC/DC Controller

LTC3713是LINEAR凌力尔特公司的一款外部开关电源控制器产品，LTC3713是LTC3713是Low Input Voltage, High Power, No R_SENSE^TM Synchronous Buck DC/DC Controller，本站介绍了LTC3713的封装应用图解、特点和优点、功能等，并给出了与LTC3713相关的LINEAR元器件型号供参考。

LTC3713 - LTC3713是Low Input Voltage, High Power, No R_SENSE^TM Synchronous Buck DC/DC Controller - 外部开关电源控制器 - 电源管理 - 凌力尔特

LTC3713 - Low Input Voltage, High Power, No R_SENSE^TM Synchronous Buck DC/DC Controller

LTC3713 - Low Input Voltage, High Power, No R_SENSE^TM Synchronous Buck DC/DC Controller - Linear Technology（凌力尔特）

功能描述

The LTC3713 is a high current, high efficiency synchronous buck switching regulator controller optimized for use with very low input supply voltages. It operates from inputs as low as 1.5V and provides a regulated output voltage from 0.8V up to (0.9)VIN. The controller uses a valley current control architecture to enable high operating frequencies without requiring a sense resistor.Operating frequency is selected by an external resistor and is compensated for variations in VIN and VOUT. The LTC3713 uses a pair of standard 5V logic-level N-channel external MOSFETs, eliminating the need for expensive P-channelor low threshold devices.

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 operation when the main output is lightly loaded. Fault protection is provided by internal foldback current limiting,an output overvoltage comparator and an optional short-circuit shutdown timer.

特点

Very Low VIN(min): 1.5V

True Current Mode Control

5V Drive for N-Channel MOSFETs Eliminates Auxillary 5V Supply

No Sense Resistor Required

Uses Standard 5V Logic-Level N-Channel MOSFETs

Adjustable Current Limit

Adjustable Frequency

Switch tON(MIN) < 100ns

2% to 90% Duty Cycle at 200kHz

0.8V ±1% Reference

Power Good Output Voltage Monitor