The PCA9411AUKZ and PCA9411A are highly efficient 3.0 MHz, 500 mA, step-up DC-to-DC converters. They convert input voltages from 2.5 V to 5.25 V to a fixed output voltage of 5.25 V.
These devices are optimized for battery-powered applications. High efficiency of up to 94 % enables an extended battery life in all portable designs. Step-up operation at a switching frequency of 3 MHz allows using 1 μH inductor or smaller.
Feature
- Efficiency up to 94 %
- ± 3 % output voltage accuracy at nominal and static conditions
- ± 3 % output voltage accuracy over full current, voltage and temperature range
- VIN ≥ VO, (Pass-Through Mode Operation)
- Load disconnect
- Current-mode controller
- Soft start function for limiting inrush current with true load disconnect
- Overcurrent and over-temperature protection
- The PCA9411 totally disconnects input to output when disabled
- The PCA9411A connects input to output when disabled
- Wafer-Level Chip-Size Package (WLCSP) with 0.4 mm pitch; allows for the use of a smaller antenna, or for greater signal strength
- IOUT ≤ 400 mA at VIN = 2.5 V
- IOUT ≤ 480 mA at VIN = 3.6 V
- IOUT ≤ 640 mA at VIN = 4.8 V
IOUT ≤ 700 mA at VIN = 5.0 V
- Smartphones
NFC terminals
