PCA9412 PCA9412A 3.0 MHz, 300 mA, DC-to-DC boost converter Rev. 1 9 June 2017 Product data sheet 1. General description The PCA9412 and PCA9412A are highly efficient 3.0 MHz, 300 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 5.4 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 % 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 PCA9412 totally disconnects input to output when disabled The PCA9412A 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 3. Applications Smartphones NFC terminals 4. Ordering information Table 1. Ordering information Type number Topside Package mark Name Description Version PCA9412UK P12 WLCSP9 wafer-level chip-size package 9 bumps body 1.24 1.24 - 0.525 mm PCA9412AUK 12A WLCSP9 wafer-level chip-size package 9 bumps body 1.24 1.24 - 0.525 mm PCA9412/9412A NXP Semiconductors 3.0 MHz, 300 mA, DC-to-DC boost converter 4.1 Ordering options Table 2. Ordering options Type number Orderable part Package Packing method Minimum Temperature number order quantity PCA9412UK PCA9412UKZ WLCSP9 REEL 7 Q1/T1 3000 T = 40 C to +85 C amb *SPECIAL MARK CHIPS DP PCA9412AUK PCA9412AUKZ WLCSP9 REEL 7 Q1/T1 3000 T = 40 C to +85 C amb *SPECIAL MARK CHIPS DP 5. Block diagram BANDGAP REFERENCE BIAS SUPPLY UNDERVOLTAGE OVERCURRENT CONTROL PROTECTION LOCKOUT LOGIC TEMPERATURE WATCHDOG PULSE GATE GENERATOR DRIVER SOFTSTART aaa-013240 Fig 1. Block diagram PCA9412 All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2017. All rights reserved. Product data sheet Rev. 1 9 June 2017 2 of 27