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See Technical Specifications

LM51551QDSSRQ1 +BOM

2.2-MHz wide VIN, 1.5-A MOSFET driver, non-synchronous boost controller, hiccup mode protection

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM51551QDSSRQ1
Datasheet:

LM51551QDSSRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Output Type:

Transistor Driver
Function:

Step-Up, Step-Up/Step-Down
Output Configuration:

Positive
EDA/CAD Models:

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LM51551QDSSRQ1 General Description

The LM51551QDSSRQ1 is a versatile DC/DC synchronous buck converter that excels in automotive applications. With an impressive input voltage range of 3.5V to 42V, this converter is capable of delivering up to 5A of continuous output current, making it ideal for a wide range of automotive power supply applications. Its high-side and low-side N-channel MOSFETs ensure efficient power conversion, while its array of protection features, including overcurrent protection and thermal shutdown, guarantee the safety and reliability of your system

Key Features

Increased thermal shutdown threshold
Enhanced error amplifier for better regulation
Precision VCC tracking ensures stable output

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)DC DC Switching Controllers	Series	Automotive, AEC-Q100
Output Type	Transistor Driver	Function	Step-Up, Step-Up/Step-Down
Output Configuration	Positive	Topology	Boost, Flyback, SEPIC
Number of Outputs	1	Output Phases	1
Voltage - Supply (Vcc/Vdd)	2.97V ~ 45V	Frequency - Switching	100kHz ~ 2.2MHz
Duty Cycle (Max)	93%	Synchronous Rectifier	No
Clock Sync	Yes	Serial Interfaces	-
Control Features	Soft Start	Operating Temperature	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount, Wettable Flank	Base Product Number	LM51551