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1. General description
The PCA9410/9410A is a highly efficient 3.0 MHz, 500 mA, step-up DC-to-DC converter.
It converts input voltages from 2.3
V to 5.25 V to a fixed output voltage of 5.0 V.
The device is optimized for battery-powered applications. Its high efficiency of up to 92 %
enables an extended battery life in all portable designs. Step-up operation at a switching
frequency of 3
MHz allows using 1 H inductor.
2. Features and benefits
Efficiency up to 92 %
2 % output voltage accuracy at nominal and static conditions
3 % output voltage accuracy over full current, voltage and temperature range
V
I
V
O
, (Pass-Through Mode Operation)
Load disconnect
Current-mode controller
Soft start function for limiting inrush current with true load disconnect
Reverse current, overcurrent and over-temperature protection
Wafer-Level Chip-Size Package (WLCSP) with 0.4 mm pitch
3. Applications
Smartphones
NFC terminals
USB
4. Ordering information
PCA9410/9410A
3.0 MHz, 500 mA, step-up DC-to-DC converter
Rev. 1.14 — 16 April 2015 Objective data sheet
WLCSP9
Table 1. Ordering information
Type number Topside mark Package
Name Description Version
PCA9410UK 10A WLCSP9 wafer-level chip-size package; 9 bumps; body 1.2 1.2 x
0.6 mm
-
PCA9410AUK 10B WLCSP9 wafer-level chip-size package; 9 bumps; body 1.2 1.2 x
0.6 mm
-