(Hong Kong)
Product Summary
The LTC1522CS8#TR is a micropower charge pump DC/DC converter that produces a regulated 5V output from a 2.7V to 5V input supply. Extremely low supply current (6mA typical with no load, <1mA in shutdown) and low external parts count (one 0.22mF flying capacitor and two 10mF capacitors at VIN and VOUT) make the LTC1522CS8#TR ideally suited for small, light load battery-powered applications. Typical efficiency (VIN = 3V) exceeds 75% with load currents between 50mA and 20mA. The applications of the LTC1522CS8#TR include SIM Interface Supplies for GSM Cellular Telephones, Li-Ion Battery Backup Supplies, Local 3V to 5V Conversion, Smart Card Readers, PCMCIA Local 5V Supplies.
Parametrics
LTC1522CS8#TR absolute maximum ratings: (1)VIN to GND: -0.3V to 6V; (2)VOUT to GND: -0.3V to 6V; (3)SHDN to GND: -0.3V to 6V; (4)VOUT Short-Circuit Duration: Indefinite; (5)Commercial Temperature Range: 0℃ to 70℃; (6)Extended Commercial Operating; (7)Temperature Range (Note 2): -40℃ to 85℃; (8)Storage Temperature Range: -65℃ to 150℃; (9)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LTC1522CS8#TR features: (1)Ultralow Power: Typical Operating ICC = 6mA; (2)Short-Circuit/Thermal Protected; (3)Regulated 5V ±4% Output Voltage; (4)2.7V to 5V Input Range; (5)No Inductors; (6)Very Low ICC in Shutdown: <1mA; (7)Output Current:10mA (VIN 3 2.7V) 20mA (VIN 3 3V); (8)Shutdown Disconnects Load from VIN; (9)Internal Oscillator: 700kHz; (10)Compact Application Circuit (<0.1 in2); (11)8-Pin MSOP and SO Packages.
Diagrams
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 LTC1522CS8#TR |
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IC REG SWITCHED CAP 5V 8SOIC |
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LTC1522CS8#TRPBF |
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IC REG SWITCHED CAP 5V 8SOIC |
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