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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC1516CS8 датащи(PDF) 1 Page - Linear Technology |
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LTC1516CS8 датащи(HTML) 1 Page - Linear Technology |
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1 / 8 page  1 LTC1516 Micropower, Regulated 5V Charge Pump DC/DC Converter The LTC ®1516 is a micropower charge pump DC/DC converter that produces a regulated 5V output from a 2V to 5V supply. Extremely low supply current (12 µA typical with no load, < 1 µA in shutdown) and low external parts count (two 0.22 µF flying capacitors and two 10µF capaci- tors at VIN and VOUT) make the LTC1516 ideally suited for small, light load battery-powered applications. Typical efficiency (VIN = 3V) exceeds 70% with load currents between 50 µA and 50mA. Modulating the SHDN pin keeps the typical efficiency above 70% with load currents all the way down to 10 µA. The LTC1516 operates as either a doubler or a tripler depending on VIN and output load conditions to improve overall efficiency. The part has thermal shutdown and can survive a continuous short from VOUT to GND. In shut- down the load is disconnected from VIN. The LTC1516 is available in an 8-pin SO package in both commercial and industrial temperature grades. s Ultralow Power: Typical Operating ICC = 12µA s Short Circuit/Thermal Protection s Regulated 5V ±4% Output s 2V to 5V Input Range s No Inductors s ICC in Shutdown: <1µA s Output Current: 20mA (VIN > 2V) 50mA (VIN > 3V) s Shutdown Disconnects Load from VIN s Internal Oscillator: 600kHz s Compact Application Circuit (0.1 in2) s 8-Pin SO Package FEATURES DESCRIPTION , LTC and LT are registered trademarks of Linear Technology Corporation. Figure 1. Regulated 5V Output from a 2V to 5V Input Efficiency vs Output Current APPLICATIONS s 2-Cell to 5V Conversion s Li-Ion Battery Backup Supplies s Local 3V to 5V Conversion s 5V Flash Memory Programmer s Smart Card Readers TYPICAL APPLICATION 1 2 3 4 8 7 6 5 C1– SHDN GND C2– C1+ VIN VOUT C2+ LTC1516 0.22 µF ON/OFF 10 µF 10 µF VOUT = 5V ±4% IOUT = 0mA TO 20mA, VIN ≥ 2V IOUT = 0mA TO 50mA, VIN ≥ 3V 0.22 µF VIN = 2V TO 5V + + 1516 • F01 OUTPUT CURRENT (mA) 50 60 70 80 90 100 1516 • TA01 0.01 0.1 1 10 SHDN = 0V VIN = 3V LOW IQ MODE (SEE FIGURE 3) |
Аналогичный номер детали - LTC1516CS8 |
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Аналогичное описание - LTC1516CS8 |
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