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

used as I2C 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.

Features

• 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 LDO

Applications

• IoT Devices

• Tablet

• Electronic Point of Sale (ePOS)

• Industrial application

PCA9450BHN属于集成电路（IC） > 电源管理 - 专用。恩智浦半导体公司制造生产的PCA9450BHN电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。