PCA9411 PCA9411A 3 6 & / : 3.0 MHz, 500 mA, DC-to-DC boost converter Rev. 1.1 5 August 2016 Product data sheet 1. General description 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 H inductor or smaller. 2. Features and benefits 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 V , (Pass-Through Mode Operation) IN O 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 400 mA at V = 2.5 V OUT IN I 480 mA at V = 3.6 V OUT IN I 640 mA at V = 4.8 V OUT IN I 700 mA at V = 5.0 V OUT IN 3. Applications Smartphones NFC terminalsPCA9411/9411A NXP Semiconductors 3.0 MHz, 500 mA, DC-to-DC boost converter 4. Ordering information Table 1. Ordering information Type number Topside Package mark Name Description Version PCA9411UK P11 WLCSP9 wafer-level chip-size package 9 bumps body 1.24 1.24 - 0.525 mm PCA9411AUK 11A WLCSP9 wafer-level chip-size package 9 bumps body 1.24 1.24 - 0.525 mm 4.1 Ordering options Table 2. Ordering options Type number Orderable part Package Packing method Minimum Temperature number order quantity PCA9411UK PCA9411UKZ WLCSP9 REEL 7 Q1/T1 3000 T = 40 C to +85 C amb *SPECIAL MARK CHIPS DP PCA9411AUK PCA9411AUKZ WLCSP9 REEL 7 Q1/T1 3000 T = 40 C to +85 C amb *SPECIAL MARK CHIPS DP PCA9411 All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2016. All rights reserved. Product data sheet Rev. 1.1 5 August 2016 2 of 28