| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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6,783 pcs
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6783 pcs | On Request | 1 | On Request | On Request | 2004 | On Request | On Request |
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The LTC1682CMS8-5 from LT is a doubler charge pump integrated circuit featuring a low noise, low dropout (LDO) linear regulator. This device is designed to generate a low noise boosted supply voltage, making it ideal for powering noise-sensitive components such as high-frequency VCOs in wireless applications.
The charge pump converts an input voltage range of 1.8V to 4.4V to a boosted output. The internal LDO then regulates this boosted voltage to provide a clean, low noise output. The adjustable version allows for output voltage setting via external resistors, with a range from 2.5V to 5.5V. Fixed output voltages of 3.3V and 5V are also available in other variants. The regulator can supply up to 50mA of output current.
Key electrical characteristics include a wide input voltage range (1.8V to 4.4V), a typical operating current of 150mA, and a low shutdown current of 1mA. The switching frequency is 550kHz. The device incorporates internal thermal shutdown and current limiting protection for enhanced reliability. It is available in an 8-pin MSOP or SO package, utilizing small ceramic capacitors for stability and reduced board space.
Applications for the LTC1682CMS8-5 include VCO power supplies in cellular phones, 2-way pagers, wireless PCMCIA cards, portable medical instruments, low power data acquisition systems, and remote transmitters.
The adjustable output voltage range is 2.5V to 5.5V.
The input voltage range is 1.8V to 4.4V.
The output current is up to 50mA.
The typical output noise is 60mVRMS with a 100kHz bandwidth.
It is available in 8-pin MSOP and SO packages.