LTC3727-1 - LTC3727-1是High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators
LTC3727-1是Linear公司的一款多输出降压产品，LTC3727-1是High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators，本站介绍了LTC3727-1的封装应用图解、特点和优点、功能等，并给出了与LTC3727-1相关的凌力尔特元器件型号供参考。
LTC3727-1 - High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators
LTC3727-1 - High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators - Linear Technology（凌力尔特）
功能描述
The LTC3727/LTC3727-1 are high performance dual step-down switching regulator controllers that drive all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows phase-lockable frequency of up to 550kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two 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. There is a precision 0.8V reference and a power good output indicator. A wide 4V to 30V (36V maximum) input supply range encompasses all battery chemistries.
A RUN/SS pin for each controller provides soft-start, and on the LTC3727GN, optional timed, short-circuit shutdown. Current foldback limits MOSFET heat dissipation during short-circuit conditions when overcurrent latchoff is disabled. Output overvoltage protection circuitry latches on the bottom MOSFET until VOUT returns to normal. The FCB mode pin can select among Burst Mode, constant frequency mode and continuous inductor current mode or regulate a secondary winding.
特点
Wide Output Voltage Range:0.8V < or = VOUT < or = 14V Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise OPTI-LOOP Compensation Minimizes COUT ±1% Output Voltage Accuracy Power Good Output Voltage Monitor Phase-Lockable Fixed Frequency 250kHz to 550kHz Latched Short-Circuit Shutdown (LTC3727 Only) Dual N-Channel MOSFET Synchronous Drive Wide VIN Range: 4V to 36V Operation Very Low Dropout Operation: 99% Duty Cycle Adjustable Soft-Start Current Ramping Foldback Output Current Limiting Output Overvoltage Protection Low Shutdown IQ: 20μA Selectable Constant Frequency or Burst Mode Operation Small 28-Lead SSOP Package LTC3727-1 Also Available in the 5mm x 5mm QFN Package应用
Telecom Systems Automotive Systems Battery-Operated Digital Devices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) |
| LTC3727EG-1 | SSOP-28 | E | $6.93 | $4.85 |
| LTC3727EG-1#PBF | SSOP-28 | E | $6.93 | $4.85 |
| LTC3727EG-1#TR | SSOP-28 | E | | $4.95 |
| LTC3727EG-1#TRPBF | SSOP-28 | E | | $4.95 |
| LTC3727EUH-1 | 5x5 QFN-32 | E | $7.21 | $5.05 |
| LTC3727EUH-1#PBF | 5x5 QFN-32 | E | $7.21 | $5.05 |
| LTC3727EUH-1#TR | 5x5 QFN-32 | E | | $5.15 |
| LTC3727EUH-1#TRPBF | 5x5 QFN-32 | E | | $5.15 |
| LTC3727IG-1#PBF | SSOP-28 | I | $8.43 | $5.90 |
| LTC3727IG-1#TRPBF | SSOP-28 | I | | $5.96 |
下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
LTC3855 - 采用差分远端采样的双通道、多相、同步 DC/DC 控制器LTC3890-1 - 60V、低 Iq、双通道、两相、同步降压型 DC/DC 控制器LTC3890 - 60V、低 IQ、双通道、两相、同步降压型 DC/DC 控制器LTC3780 – 高效率、同步、四开关降压-升压型控制器 LTC3115-1 - 40V、2A、同步降压-升压型 DC/DC 转换器LTC3789 - 高效率、同步、四开关降压-升压型控制器LTC3891 - 低 Iq、60V、同步降压型控制器LT8705 - 80V VIN 和 VOUT 同步、四开关、降压-升压型 DC/DC 控制器LTC3728 - 双输出、550kHz、两相同步降压型开关稳压器LT3080-1 - 可并联、1.1A、输出可调的单电阻低压差稳压器
下面可能是您感兴趣的Linear公司多输出降压元器件
LTC2619 - LTC2619是具 I2C 接口的四通道 14 位轨至轨 DACLTC6400-26 - LTC6400-26是针对 DC 至 300MHz 的 1.9GHz 低噪声、低失真差分 ADC 驱动器LTC3711 - LTC3711是5-Bit Adjustable, Wide Operating Range, No RSENSE? Step-Down ControllerLT3757A - LT3757A是升压、反激式、SEPIC 和负输出控制器LTC6400-8 - LTC6400-8是针对 DC 至 300MHz 的 2.2GHz、低噪声、低失真差分 ADC 驱动器LTC3400B - LTC3400B是采用 ThinSOT 封装的 600mA、1.2MHz 微功率同步升压型转换器RH137H - RH137H是Negative Adjustable RegulatorLTC1044A - LTC1044A是12V CMOS 电压转换器LTM8062 - LTM8062是32VIN、2A μModule 功率跟踪电池充电器LT1976 - LT1976是High Voltage 1.5A, 200kHz Step-Down Switching Regulator with 100μA Quiescent Current
