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LP3219 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
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LP3219 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 12 page  LP3219-04 Apr.-2016 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 12 Preliminary Datasheet LP3219 1.5MHz, 2A Step-Down Converter General Description The LP3219 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 96% efficiency during peak load conditions. The LP3219 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 LP3219 can supply up to 2.0A 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 0.61V. 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 LP3219 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°C to +85°C. Order Information LP3219 □ □ □ □ 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 2.0A Output Current Low R(DSON) Internal Switches:80mΩ/70mΩ High Efficiency: Up to 96% 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 LP3219 LPS A3YWX SOT23-5 3K/REEL Marking indication: Y:Production year W:Production week X:Production batch |
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Similar Description - LP3219 |
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