LTC1751 - LTC1751是Micropower, Regulated Charge Pump DC/DC Converters
LTC1751是Linear公司的一款稳压的升压型充电泵产品，LTC1751是Micropower, Regulated Charge Pump DC/DC Converters，本站介绍了LTC1751的封装应用图解、特点和优点、功能等，并给出了与LTC1751相关的凌力尔特元器件型号供参考。
LTC1751 - Micropower, Regulated Charge Pump DC/DC Converters
LTC1751 - Micropower, Regulated Charge Pump DC/DC Converters - Linear Technology（凌力尔特）
功能描述
The LTC1751 family are micropower charge pump DC/DC converters that produce a regulated output voltage at up to 100mA. The input voltage range is 2V to 5.5V. Extremely low operating current (20µA typical with no load) and low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make them ideally suited for small, battery-powered applications.
The LTC1751 family operate as Burst Mode™ switched capacitor voltage doublers to achieve ultralow quiescent current. They have thermal shutdown capability and can survive a continuous short circuit from Vout to GND. The PGOOD pin on the LTC1751-3.3 and LTC1751-5 indicates when the output voltage has reached its final value and if the output has an undervoltage fault condition. The FB pin of the adjustable LTC1751 can be used to program the desired output voltage or current. An optional soft-start capacitor may be used at the SS pin to prevent excessive inrush current during start-up.
The LTC1751 family is available in an 8-pin MSOP package.
特点
5V Output Current:100mA (VIN >/= 3V) 3.3V Output Current:80mA (VIN >/= 2.5V) Ultralow Power: 20µA Quiescent Current Regulated Output Voltage: 3.3V ±4%, 5V ±4%, ADJ VIN Range: 2V to 5.5V 800kHz Switching Frequency No Inductors Very Low Shutdown Current: <2µA Shutdown Disconnects Load from VIN PowerGood/Undervoltage Output Adjustable Soft-Start Time Short-Circuit/Thermal Protection Available in 8-Pin MSOP应用
Li-Ion Battery Backup Supplies Local 3V and 5V Conversion Smart Card Readers PCMCIA Local 5V Supplies White LED Backlighting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) |
| LTC1751EMS8 | MS-8 | E | $2.67 | $2.25 |
| LTC1751EMS8-3.3 | MS-8 | E | $2.67 | $2.25 |
| LTC1751EMS8-3.3#PBF | MS-8 | E | $2.67 | $2.25 |
| LTC1751EMS8-3.3#TR | MS-8 | E | | $2.31 |
| LTC1751EMS8-3.3#TRPBF | MS-8 | E | | $2.31 |
| LTC1751EMS8-5 | MS-8 | E | $2.67 | $2.25 |
| LTC1751EMS8-5#PBF | MS-8 | E | $2.67 | $2.25 |
| LTC1751EMS8-5#TR | MS-8 | E | | $2.31 |
| LTC1751EMS8-5#TRPBF | MS-8 | E | | $2.31 |
| LTC1751EMS8#PBF | MS-8 | E | $2.67 | $2.25 |
| LTC1751EMS8#TR | MS-8 | E | | $2.31 |
| LTC1751EMS8#TRPBF | MS-8 | E | | $2.31 |
下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
LT1054 - 具稳压器的开关电容器电压转换器LTC3221/LTC3221-3.3/LTC3221-5 - Micropower, Regulated Charge Pump in 2 x 2 DFNLTC1682 - Doubler Charge Pumps with Low Noise Linear RegulatorLT3080 - 可调 1.1A、单电阻、低压差稳压器LTC3260 - 低噪声、双通道电源的负输出充电泵LT1615 - 采用 ThinSOT 封装的微功率升压型 DC/DC 转换器LTC3105 - 具最大功率点控制功能及 250mV 启动电压的 400mA 升压型 DC/DC 转换器LT1761 - 采用 SOT-23 封装的 100mA、低噪声、LDO 微功率稳压器LT3652 - 用于太阳能电源的功率跟踪 2A 电池充电器LTC4364 - 具理想二极管的浪涌抑制器
下面可能是您感兴趣的Linear公司稳压的升压型充电泵元器件
LT3497 - LT3497是Dual Full Function White LED Driver with Integrated Schottky DiodesLTC2631-12 - LTC2631-12是具 10ppm/oC 基准的单通道 12 / 10 / 8 位 I2C VOUT DACLT1461CCS8-3 - LT1461CCS8-3是微功率、精准、低压差、串联电压基准系列LT1330 - LT1330是具 3V 逻辑接口并有一个接收器在停机模式中处于运行状态的 5V RS232 收发器LTC1400 - LTC1400是Complete SO-8, 12-Bit, 400ksps ADC with ShutdownLT3508 - LT3508是双通道、单片式 1.4A 降压型开关稳压器LTC3838-2 - LTC3838-2是具外部基准电压和双通道差分输出检测功能的双通道、快速、准确的降压型 DC/DC 控制器RH07J8 - RH07J8是Operational AmplifierLTC3637 - LTC3637是 76V、1A 降压型稳压器LTC3455 - LTC3455是具有 USB 电源管理器和锂离子电池充电器的双 DC/DC 转换器
