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公司的一款数字可编程的降压型稳压器产品，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相关的凌力尔特元器件型号供参考。
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 Latched Short-Circuit Shutdown with Defeat Option Output Overvoltage Protection Remote Output Voltage Sense Low Shutdown Current: 20µA 5V and 3.3V Standby Regulators Selectable Constant Frequency, Burst Mode andContinuous Operation应用
Notebook and Palmtop Computers, PDAs Portable Instruments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) |
| LTC1708EG-PG | SSOP-36 | E | $5.45 | $4.60 |
| LTC1708EG-PG#PBF | SSOP-36 | E | $5.45 | $4.60 |
| LTC1708EG-PG#TR | SSOP-36 | E | | $4.70 |
| LTC1708EG-PG#TRPBF | SSOP-36 | E | | $4.70 |
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