LTC1682CMS8-3.3#PBF
ActiveDOUBLER CHARGE PUMPS WITH LOW NOISE LINEAR REGULATOR
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LTC1682CMS8-3.3#PBF
ActiveDOUBLER CHARGE PUMPS WITH LOW NOISE LINEAR REGULATOR
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC1682CMS8-3.3#PBF |
|---|---|
| Current - Output | 50 mA |
| Frequency - Switching | 550 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Output Configuration | Positive |
| Output Type | 1.81 mOhm |
| Package / Case | 8-MSOP, 8-TSSOP |
| Package / Case | 3 mm |
| Package / Case [custom] | 0.118 in |
| Supplier Device Package | 8-MSOP |
| Synchronous Rectifier | False |
| Voltage - Input (Max) [Max] | 4.4 V |
| Voltage - Input (Min) [Min] | 1.8 V |
| Voltage - Output (Min/Fixed) | 3.3 V |
LTC1682 Series
Doubler Charge Pumps with Low Noise Linear Regulator
| Part | Voltage - Output (Min/Fixed) | Voltage - Output (Max) [Max] | Supplier Device Package | Number of Outputs | Operating Temperature [Max] | Operating Temperature [Min] | Current - Output | Output Configuration | Mounting Type | Package / Case | Package / Case [custom] | Package / Case | Voltage - Input (Max) [Max] | Synchronous Rectifier | Output Type | Voltage - Input (Min) [Min] | Function | Frequency - Switching | Output Type | Package / Case [y] | Package / Case [x] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | 2.5 V | 5.5 V | 8-MSOP | 1 | 85 °C | -40 °C | 50 mA | Positive | Surface Mount | 8-MSOP 8-TSSOP | 0.118 in | 3 mm | 4.4 V | Adjustable | 1.8 V | Step-Up/Step-Down | 550 kHz | ||||
Analog Devices | 5 V | 8-SO | 1 | 85 °C | -40 °C | 50 mA | Positive | Surface Mount | 8-SOIC | 4.4 V | 1.8 V | Step-Up | 550 kHz | 1.81 mOhm | 3.9 mm | 0.154 in | |||||
Analog Devices | 3.3 V | 8-SO | 1 | 85 °C | -40 °C | 50 mA | Positive | Surface Mount | 8-SOIC | 4.4 V | 1.8 V | Step-Up/Step-Down | 550 kHz | 1.81 mOhm | 3.9 mm | 0.154 in | |||||
Analog Devices | 3.3 V | 8-SO | 1 | 85 °C | -40 °C | 50 mA | Positive | Surface Mount | 8-SOIC | 4.4 V | 1.8 V | Step-Up/Step-Down | 550 kHz | 1.81 mOhm | 3.9 mm | 0.154 in | |||||
Analog Devices | 3.3 V | 8-MSOP | 1 | 70 °C | 0 °C | 50 mA | Positive | Surface Mount | 8-MSOP 8-TSSOP | 0.118 in | 3 mm | 4.4 V | 1.8 V | Step-Up/Step-Down | 550 kHz | 1.81 mOhm | |||||
Analog Devices | 3.3 V | 8-MSOP | 1 | 70 °C | 0 °C | 50 mA | Positive | Surface Mount | 8-MSOP 8-TSSOP | 0.118 in | 3 mm | 4.4 V | 1.8 V | Step-Up/Step-Down | 550 kHz | 1.81 mOhm | |||||
Analog Devices | 2.5 V | 5.5 V | 8-MSOP | 1 | 70 °C | 0 °C | 50 mA | Positive | Surface Mount | 8-MSOP 8-TSSOP | 0.118 in | 3 mm | 4.4 V | Adjustable | 1.8 V | Step-Up/Step-Down | 550 kHz | ||||
Analog Devices | 2.5 V | 5.5 V | 8-SO | 1 | 85 °C | -40 °C | 50 mA | Positive | Surface Mount | 8-SOIC | 4.4 V | Adjustable | 1.8 V | Step-Up/Step-Down | 550 kHz | 3.9 mm | 0.154 in | ||||
Analog Devices | 5 V | 8-SO | 1 | 70 °C | 0 °C | 50 mA | Positive | Surface Mount | 8-SOIC | 4.4 V | 1.8 V | Step-Up | 550 kHz | 1.81 mOhm | 3.9 mm | 0.154 in |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 8.47 | |
| 10 | $ 5.83 | |||
| 25 | $ 5.14 | |||
| 100 | $ 4.38 | |||
| 250 | $ 4.01 | |||
| 500 | $ 3.78 | |||
| 1000 | $ 3.59 | |||
| 2500 | $ 3.46 | |||
Description
General part information
LTC1682 Series
The LTC1682/LTC1682-3.3/LTC1682-5 are doubler charge pumps with an internal low noise, low dropout (LDO) linear regulator. These parts are designed to provide a low noise boosted supply voltage for powering noise sensitive devices such as high frequency VCOs in wireless applications.An internal doubler charge pump converts a 1.8V to 4.4V input to a boosted output, while the internal LDO regulator converts the boosted voltage to a low noise regulated output. The adjustable version allows the user to set VOUTvia external resistors connected to FB. The regulator is capable of supplying up to 50mA of output current. Shutdown reduces the supply current to < 5µA, removes the load from VINby disabling the regulator and discharges VOUTto ground through a 100Ω switch.The LTC1682 LDO regulator is stable with only 2µF on the output. Small ceramic capacitors can be used, reducing PC board area.The LTC1682/LTC1682-3.3/LTC1682-5 are short-circuit and over temperature protected. The parts are available in 8-pin MSOP and SO packages.ApplicationsVCO Power Supplies in Cellular Phones2-Way PagersWireless PCMCIA CardsPortable Medical InstrumentsLow Power Data AcquisitionRemote Transmitters
Documents
Technical documentation and resources