LTC1708-PG - LTC1708-PG是Dual Adjustable 5-Bit VID High Efficiency, 2-Phase Current Mode Synchronous Buck DC/DC Regulator Controller

LTC1708-PG是LINEAR凌力尔特公司的一款数字可编程的降压型稳压器产品，LTC1708-PG是LTC1708-PG是Dual Adjustable 5-Bit VID High Efficiency, 2-Phase Current Mode Synchronous Buck DC/DC Regulator Controller，本站介绍了LTC1708-PG的封装应用图解、特点和优点、功能等，并给出了与LTC1708-PG相关的LINEAR元器件型号供参考。

LTC1708-PG - LTC1708-PG是Dual Adjustable 5-Bit VID High Efficiency, 2-Phase Current Mode Synchronous Buck DC/DC Regulator Controller - 数字可编程的降压型稳压器 - 电源管理 - 凌力尔特

LTC1708-PG - Dual Adjustable 5-Bit VID High Efficiency, 2-Phase Current Mode Synchronous Buck DC/DC Regulator Controller

LTC1708-PG - Dual Adjustable 5-Bit VID High Efficiency, 2-Phase Current Mode Synchronous Buck DC/DC Regulator Controller - Linear Technology（凌力尔特）

功能描述

The LTC1708 is a dual adjustable 5-bit VID programmable step-down switching regulator controller that drives all N-Channel power MOSFET stages. A constant frequency current mode architecture allows adjustment of the frequency up to 300kHz. Power loss and noise due to the ESR of the input capacitance are minimized by operating the two main controller output stages out of phase.

OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The precision 0.8V reference is compatible with future microprocessor generations, and a wide 3.5V to 30V (36V maximum) input supply range that encompasses all battery chemistries. A power good output indicates when the output voltages are within 7.5% of their programmed value.

A RUN/SS pin for each controller provides both soft-start and an optional timed, short-circuit shutdown. Other protection features include: internal foldback current limiting and an output overvoltage crowbar. The forced continuous control pin (FCB) can be used to inhibit BurstMode operation or to regulate a third, flyback output.

特点

Out-of-Phase Controllers Reduce Input Capacitanceand Power Supply Induced Noise

OPTI-LOOP Compensation Minimizes COUT

Power Good Output Monitors Both Outputs

5-Bit Mobile VID Control, VOUT: 0.9V to 2.0V

Dual N-Channel MOSFET Synchronous Drive

±1% Output Voltage Accuracy

DC Programmed Fixed Frequency 150kHz to 300kHz

Wide VIN Range: 3.5V to 36V Operation

Very Low Dropout Operation: 99% Duty Cycle

Adjustable Soft-Start Current Ramping

Foldback Output Current Limiting