NXP PCA9451A

The PCA9451A is a single chip power management IC (PMIC) designed to support i.MX 93x processor family in both 1 cell Li-Ion and Li-polymer battery portable applications and 5 V adapter non-portable applications.

The device provides six high efficiency step-down regulators, three 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)1 along with programmable ramping up and down time. The buck regulators support remote sense to compensate IR drop to load from buck regulator, allowing better performance to meet the demand for accuracy in critical supply rails.

This device is characterized across -40 °C to 105 °C ambient temperature range, making it a good option for the industrial, extended industrial, and consumer markets.

Features

• ​Optimized PMIC for i.MX 93x Consumer / Industrial applications
  • PCA9451A for LPDDR4X and LPDDR4
  • Supports all versions of i.MX 93x
• 6x High-Efficiency Buck regulators
  • 1x 4 A buck regulators with DVS and remote sense capability (Buck1/Buck3 is a Dual-Phase Buck)
  • 1x 3 A buck regulators with DVS and remote sense capability
  • 1x 3 A buck regulator
  • 1x 2 A buck regulator
  • 1x 1.5 A buck regulators
• 3x Lineal Regulators (LDOs)
  • 1x 10 mA LDOs for SNVS power rails
  • 1x 150 mA LDO with voltage selection pin
  • 1x 200 mA LDO
  • 1x 400 mA Load Switch for SD Card
• Integrated I2C Level Translator
  • Power Control I/Os
  • Power ON/OFF control
  • Standby/Run Mode control
  • Fm + 1 MHz I2C interface
• Other Features
  • 400 m A load switch with a built-in active discharge resistor
  • 32.768 kHz crystal oscillator driver and buffer output
• Package
  • Offered in HVQFN Package, 7 mm x 7 mm, 0.4 mm pitch, 56 pins
• Temperature Range
  • Ta -40 °C to 105 °C
  • Tj -40 °C to 125 °C
• NXP Product Longevity Program
  • Included with assured supply for a minimum of 15 years after launch

Applications

• Industrial
  • EV Charging Station
  • I/O Control
  • Industrial Gateway
  • Industrial HMI (Human Machine Interface)
  • Machine vision and scanning
• Smart Home
  • Audio sound bar
  • Energy meter/grid equipment
  • Environmental control
  • Home security hub
  • Sensor hub
  • Smart doorbell
  • Smart lock

Block diagram