1.5MHz, 1A Step-Down Converter
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 1.2A 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 1.2A output load current from an input voltage 2.2V to 6.0V 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.
DSP Core Supplies
Cellular Phone and Smart mobile phone
Input Voltage Range: 2.2V to 5.5V
Output Voltage Range: 0.61V to VIN
1A 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
RoHS Compliant and 100% Lead (Pb)-Free
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