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Vedi Specifiche Tecniche

LP87524PRNFTQ1 +BOM

Efficient power conversion for advanced automotive electronic

Produttore:

Texas Instruments, Inc
ProduttorePart #:

LP87524PRNFTQ1
Scheda dati:

LP87524PRNFTQ1 Scheda dati (PDF)
Series:

Automotive, AEC-Q100
Function:

Step-Down
Output Configuration:

Positive
Topology:

Buck
EDA/CAD Modelli:

Richiedi modelli CAD gratuiti per LP87524PRNFTQ1

LP87524PRNFTQ1 Descrizione generale

The LP87524B/J/P-Q1 is designed to meet the power management requirements of the latest processors and platforms in various automotive power applications. The device contains four step-down DC-DC converter cores, which are configured as 4 single phase outputs. The device is controlled by an I²C-compatible serial interface and by enable signals.

The automatic PFM/PWM (AUTO mode) operation maximizes efficiency over a wide output-current range. The LP87524B/J/P-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 LP87524B/J/P-Q1 device supports load-current measurement without the addition of external current-sense resistors. In addition, the LP87524B/J/P-Q1 supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can also include GPIO signals to control external regulators, load switches and processor reset. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.

Caratteristiche principali

Temperature-Resistant Construction
Intuitive User Interface
High-Speed Communication

Specifiche

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators	Series	Automotive, AEC-Q100
Function	Step-Down	Output Configuration	Positive
Topology	Buck	Output Type	Adjustable
Number of Outputs	4	Voltage - Input (Min)	2.8V
Voltage - Input (Max)	5.5V	Voltage - Output (Min/Fixed)	0.6V
Voltage - Output (Max)	3.36V	Current - Output	3A
Frequency - Switching	2MHz, 3MHz, 4MHz	Synchronous Rectifier	No
Operating Temperature	-40°C ~ 125°C (TA)	Mounting Type	Surface Mount, Wettable Flank
Base Product Number	LP87524	Regulated outputs (#)	4
Vin (min) (V)	2.8	Vin (max) (V)	5.5
Iout (max) (A)	4	Configurability	Factory programmable, Software configurable
Rating	Automotive	Step-down DC/DC controller	0
Step-down DC/DC converter	4	Step-up DC/DC controller	0
Step-up DC/DC converter	0	LDO	0
Iq (typ) (mA)	0.0067	Switching frequency (max) (kHz)	4400
Features	Diagnostics, Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Synchronous rectification, Thermal shutdown, UVLO fixed	Operating temperature range (°C)	-40 to 125
Processor name	mmWave AWR	Processor supplier	Texas Instruments
Shutdown current (ISD) (typ) (µA)	1.4	Switching frequency (typ) (kHz)	4000

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