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LP873222RHDRQ1 +BOM

PMIC - Voltage Regulators - Linear Switching 4 Output Step-Down (Buck) (2), Linear (LDO) (2) 2MHz 28-VQFN (5x5)

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LP873222RHDRQ1
Datasheet:

LP873222RHDRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Topology:

Step-Down (Buck) (2), Linear (LDO) (2)
Number Of Outputs:

4
Frequency - Switching:

2MHz
EDA/CAD Models:

Request Free CAD Models for LP873222RHDRQ1

LP873222RHDRQ1 General Description

The LP873222-Q1 is designed to meet the power management requirements in automotive applications. The device has two step-down DC/DC converters, two linear regulators, and two general-purpose digital-output signals. The device is controlled by an I²C-compatible serial interface and by an enable signal.

The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output-current range. The LP873222-Q1 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL), thus improving the accuracy of the output voltage. In addition, the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP873222-Q1 device supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.

Key Features

Overcurrent protection with hysteresis
Pulse-frequency modulation (PFM) support
Safe-start feature for reliable operation
Programmable soft-off to reduce inrush current
Digital input filtering for noise reduction
Internal clock generator with adjustable frequency

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - Linear + Switching	Series	Automotive, AEC-Q100
Topology	Step-Down (Buck) (2), Linear (LDO) (2)	Number of Outputs	4
Frequency - Switching	2MHz	Voltage/Current - Output 1	0.7V ~ 3.36V, 2A
Voltage/Current - Output 2	0.7V ~ 3.36V, 2A	Voltage/Current - Output 3	0.8V ~ 3.3V, 300mA
w/LED Driver	No	w/Supervisor	No
w/Sequencer	No	Voltage - Supply	2.8V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)	Mounting Type	Surface Mount, Wettable Flank
Base Product Number	LP873222