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LP3218 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
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LP3218 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 8 page  LP3218-04 Jun.-2015 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 8 Preliminary Datasheet LP3218 1.5MHz, 1.5A Step-Down Converter General Description The LP3218 is a 1.5MHz constant frequency current mode PWM step-down converter. It is ideal for portable equipment which requires very high current up to 2.0A from single-cell Lithium-ion batteries while still achieving over 95% efficiency during peak load conditions. The LP3218 also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noisy sensitive applications. The LP3218 can supply up to 2.0A output load current from an input voltage 2.5V to 5.5V and the output voltage can be regulated as low as 0.6V. The high switching frequency minimizes the size of external components while keeping switching losses low. The internal slope compensation setting allows the device to operate with smaller inductor values to optimize size and provide efficient operation. The LP3218 is available with adjustable (0.6V to VIN) output voltage. The device is available in a Pb-free, SOT23-5 package and is rated over the temperature range of -40°C to +85°C. Order Information LP3218 □ □ □ □ F: Pb-Free Package Type B5: SOT23-5 VOUT Type A: Adjustable Features Input Voltage Range: 2.5V to 5.5V Output Voltage Range: 0.6V to VIN 2.0A Output Current High Efficiency: Up to 95% 100% Duty Cycle in Dropout Low Shutdown Current: <1uA 1.5MHz Switching Frequency Soft star Function Short Circuit Protection Thermal Fault Protection SOT23-5Package RoHS Compliant and 100% Lead (Pb)-Free Applications Portable Instruments DSP Core Supplies Cellular Phone and Smart mobile phone PDA GPS Applications Marking Information Device Marking Package Shipping LP3218 ASXXX SOT23-5 3K/REEL X: Batch number. |
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Similar Description - LP3218 |
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