PCA9450 Power management IC for i.MX 8M application processor family Rev. 2.2 15 September 2021 Product data sheet 1 General description PCA9450 is a single chip Power Management IC (PMIC) specifically designed to support i.MX 8M family processor in both 1 cell Li-Ion and Li-polymer battery portable application and 5 V adapter non-portable applications. It supports various memory types (DDR4/LPDDR4/DDR3L, etc.) via system UBOOT configuration, which does not require hardware change. The device provides six high efficiency step-down regulators, five LDOs, one 400 mA load switch, 2-channel level translator and 32.768 kHz crystal oscillator driver. Three buck regulators support Dynamic Voltage Scaling (DVS) feature along with programmable ramping up and down time and those buck regulators support remote sense to compensate IR drop to load from buck regulator. This device is characterized across -40 C to 105 C ambient temperature range. Six step-down regulators are designed to provide power for i.MX 8M application processor and DRAM memory. Two LDOs, LDO1 and LDO2, feature very low quiescent current to provide power for Secure Non-Volatile Storage (SNVS) since these LDOs are always ON when input voltage is valid. PCA9450 integrates logic translator which is a 2-bit, dual supply translating transceiver with auto direction sensing. It enables bidirectional voltage level translation. It can be 2 used as I C level translator. 400 mA load switch is to supply 3.3 V power supply to SD card, which has internal discharge resistor. PCA9450 has three versions: PCA9450AA is companion PMIC for (i.MX 8M Mini), PCA9450B is companion PMIC for i.MX 8M Nano and PCA9450C is companion PMIC for i.MX 8M Plus. The PCA9450 is offered in 56-pin HVQFN package, 7 mm x 7 mm, 0.4 mm pitch. 2 Features and benefits Six high-efficiency step-down regulators Three 3 A buck regulators with DVS feature and remote sense PCA9450AA Three 3 A buck regulators PCA9450B Two 3 A buck regulators PCA9450C 6 A dual-phase buck regulator and 3 A buck regulator One 3 A buck regulator Two 2 A buck regulators Five linear regulators Two 10 mA LDOs One 150 mA LDO One 200 mA LDO One 300 mA LDONXP Semiconductors PCA9450 Power management IC for i.MX 8M application processor family Support various memory types: DDR4/LPDDR4/DDR3L via system UBOOT configuration, no hardware change required 400 mA load switch with built-in active discharge resistor 32.768 kHz crystal oscillator driver and buffer output Two channel logic level translator Power control IO Power ON/OFF control Standby/run mode control 2 Fm+ 1 MHz I C-bus interface ESD protection Human Body Model (HBM) : +/- 2000 V Charged Device Model (CDM) : +/-500 V 7 mm x 7 mm, 56-pin HVQFN with 0.4 mm pitch 3 Applications IoT Devices Tablet Electronic Point of Sale (ePOS) Industrial application 4 Ordering information Table 1.Ordering information Topside AP platform Package Type number marking Name Description Version PCA9450AAHN PCA9450AA i.MX 8M Mini HVQFN56 thermal enhanced very thin quad flat SOT949-6 package no leads 56 terminals 0.4 mm pitch, 7 mm x 7 mm x 0.85 mm body PCA9450BHN PCA9450B i.MX 8M Nano HVQFN56 thermal enhanced very thin quad flat SOT949-6 package no leads 56 terminals 0.4 mm pitch, 7 mm x 7 mm x 0.85 mm body PCA9450CHN PCA9450C i.MX 8M Plus HVQFN56 thermal enhanced very thin quad flat SOT949-6 package no leads 56 terminals 0.4 mm pitch, 7 mm x 7 mm x 0.85 mm body Table 2.Ordering options Type number Orderable part Package Packing Minimum Temperature Recommended number method order range (T ) temperature amb quantity range (T ) J PCA9450AAHN PCA9450AAHNY HVQFN56 REEL 13 2000 -40 C to +105 C -40 C to +125 C Q1 DP PCA9450BHN PCA9450BHNY HVQFN56 REEL 13 2000 -40 C to +105 C -40 C to +125 C Q1 DP PCA9450CHN PCA9450CHNY HVQFN56 REEL 13 2000 -40 C to +105 C -40 C to +125 C Q1 DP PCA9450 All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Product data sheet Rev. 2.2 15 September 2021 2 / 96