PCA9411: 3.0 MHz, 500 mA, DC-to-DC boost converter

Overview

The PCA9411 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.

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Features

Efficiency up to 94 %
± 3 % output voltage accuracy at nominal and static conditions
± 3 % output voltage accuracy over full current, voltage and temperature range
V_IN ≥ V_O, (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
I_OUT ≤ 400 mA at V_IN = 2.5 V
I_OUT ≤ 480 mA at V_IN = 3.6 V
I_OUT ≤ 640 mA at V_IN = 4.8 V
I_OUT ≤ 700 mA at V_IN = 5.0 V

Target Applications

Smartphones
NFC terminals

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Features

Efficiency up to 94 %
± 3 % output voltage accuracy at nominal and static conditions
± 3 % output voltage accuracy over full current, voltage and temperature range
V_IN ≥ V_O, (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
I_OUT ≤ 400 mA at V_IN = 2.5 V
I_OUT ≤ 480 mA at V_IN = 3.6 V
I_OUT ≤ 640 mA at V_IN = 4.8 V
I_OUT ≤ 700 mA at V_IN = 5.0 V

Target Applications

Smartphones
NFC terminals

Data Sheets

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Sample