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LP3220 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
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LP3220 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 12 page  LP3220-02 Jun.-2015 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 12 Preliminary Datasheet LP3220 1.5MHz, 1.0A Step-Down Converter General Description The LP3220 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 1.0A from single-cell Lithium-ion batteries while still achieving over 94% efficiency during peak load conditions. The LP3220 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 LP3220 can supply up to 1.0A output load current from at VIN = 3V and has 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 LP3220 is available with adjustable (0.61V to VIN) output voltage. The device is available in a Pb-free, SOT23-5 package and is rated over the temperature range of -40℃ to +85℃. Order Information LP3220 □ □ □ □ F: Pb-Free Package Type B5: SOT23-5 VOUT Type A: Adjustable Features Input Voltage Range: 2.5V to 5.5V Output Voltage Range: 0.61V to VIN 1.0A Output Current High Efficiency: Up to 94% 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 LP3220 LPS A1YWX SOT23-5 3K/REEL Marking indication: Y:Production year W:Production week X:Production batch |
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Similar Description - LP3220 |
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