供应LP3220S 降压转换器 微源原装现货

微源半导体 LP3220S SOT23-5 1.5MHz，2A降压转换器

General Description

The LP3220S 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 LP3220S 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 LP3220S can supply up to 1.0A output load current from at VIN = 3V and has an input voltage 2.2V 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.

Application

◆ Portable Instruments
◆ DSP Core Supplies
◆ Cellular Phone and Smart mobile phone
◆ PDA
◆ GPS Applications

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