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LP6217 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
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LP6217 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 6 page  Preliminary LP6217 LP6217 –00 Version 1.0 Datasheet Sep.-2010 www.lowpowersemi.com Page 1 of 6 26V/2.1A Current Boost With OCP IN SOT23-6 Package General Description The LP6217 is high efficiency Boost DC/DC Converter, fixed frequency, current-mode step-up converter with output to input disconnect. A PWM step-up DC/DC converters optimized to provide a high efficiency solution to medium power system. Its PWM circuitry with built-in 2.1A@200mΩ power mosfet makes this converter highly power efficiently. Selectable high switching frequency allows faster loop response and easy filtering with a low noise output. The non-inverting input its error amplifier is connected to an internal 0.6V precision reference voltage. Soft-start time can be programmed with an external capacitor, which sets the input current ramp rate. Current mode control and external compensation network make it easy and flexible to stabilize the system. the devices regulates the output voltage up to 12V from either a 2cell NiMH/NiCd or a single-cell Li-ion Battery with a 1MHz fixed frequency switching. These features minimize overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Ordering Information LP6217 - □ □ □ F: Pb-Free Package Type B6: SOT23-6 Marking Information Please see website. Features Up to 94% efficiency Shut-down current:<1uA Output voltage Up to 24V 1MHz fixed frequency switching High switch on current:2.1A,24V@200mΩ Adjustable OCP: 0.5A-2A Available in SOT23-6 Package Applications Battery products Host Products Motor Power Devices Typical Application Circuit C3 22pF R1 45K LP6217 3 5 6 1 OCP EN FB Vin R3 20K Vout C1 22uF Vin C2 22uF R2 10K 4.7uH Pin Configurations 3 6 4 1 LP6217B6F 5 2 (SOT23-6) |
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