LM46001-Q1 Series

Automotive Qualified 3.5 to 60V, 1A Synchronous Step-Down Voltage Converter

Catalog

Automotive Qualified 3.5 to 60V, 1A Synchronous Step-Down Voltage Converter

Part	Operating Temperature [Min]	Operating Temperature [Max]	Output Type	Grade	Voltage - Output (Max)	Number of Outputs	Current - Output	Package / Case	Package / Case	Qualification	Topology	Output Configuration	Voltage - Input (Min) [Min]	Supplier Device Package	Voltage - Output (Min/Fixed)	Function	Frequency - Switching [Max]	Frequency - Switching [Min]	Voltage - Input (Max) [Max]	Mounting Type	Outputs and Type	Outputs and Type	Supplied Contents	Utilized IC / Part	Board Type	Regulator Topology	Main Purpose	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Frequency - Switching
Texas Instruments LM46001AQPWPTQ1	-40 °C	125 ¯C	Adjustable	Automotive	28 V	1	1 A	16-PowerTSSOP	0.173 in 4.4 mm Width	AEC-Q100	Buck	Positive	3.5 V	16-HTSSOP	1 V	Step-Down	2.2 MHz	200 kHz	60 V	Surface Mount
Texas Instruments LM46001PWPEVM							1 A														Non-Isolated	1	Board(s)	LM46001	Fully Populated	Buck	DC/DC Step Down	3.3 V	60 V	3.5 V	500 kHz
Texas Instruments LM46001AQPWPRQ1	-40 °C	125 ¯C	Adjustable	Automotive	28 V	1	1 A	16-PowerTSSOP	0.173 in 4.4 mm Width	AEC-Q100	Buck	Positive	3.5 V	16-HTSSOP	1 V	Step-Down	2.2 MHz	200 kHz	60 V	Surface Mount
Texas Instruments LM46001PWPR	-40 °C	125 ¯C	Adjustable		28 V	1	1 A	16-PowerTSSOP	0.173 in 4.4 mm Width		Buck	Positive	3.5 V	16-HTSSOP	1 V	Step-Down	2.2 MHz	200 kHz	60 V	Surface Mount
Texas Instruments LM46001PWPT	-40 °C	125 ¯C	Adjustable		28 V	1	1 A	16-PowerTSSOP	0.173 in 4.4 mm Width		Buck	Positive	3.5 V	16-HTSSOP	1 V	Step-Down	2.2 MHz	200 kHz	60 V	Surface Mount

Catalog

Automotive Qualified 3.5 to 60V, 1A Synchronous Step-Down Voltage Converter

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Operating Junction Temperature24-µA Quiescent Current in RegulationHigh Efficiency at Light Load (DCM and PFM)Tested to EN55022/CISPR 22 EMI StandardsIntegrated Synchronous RectificationAdjustable Frequency Range: 200 kHz to 2.2 MHz (500 kHz default)Frequency Synchronization to External ClockInternal CompensationStable With Almost Any Combinations of Ceramic, Polymer, Tantalum, and Aluminum CapacitorsPower-Good FlagSoft Start into Pre-Biased LoadInternal Soft Start: 4.1 msExtendable Soft-Start Time by External CapacitorOutput Voltage Tracking CapabilityPrecision Enable to Program System UVLOOutput Short-Circuit Protection with Hiccup ModeOvertemperature Thermal Shutdown ProtectionCreate a Custom Design Using the LM46001-Q1 With theWEBENCH®Power DesignerQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Operating Junction Temperature24-µA Quiescent Current in RegulationHigh Efficiency at Light Load (DCM and PFM)Tested to EN55022/CISPR 22 EMI StandardsIntegrated Synchronous RectificationAdjustable Frequency Range: 200 kHz to 2.2 MHz (500 kHz default)Frequency Synchronization to External ClockInternal CompensationStable With Almost Any Combinations of Ceramic, Polymer, Tantalum, and Aluminum CapacitorsPower-Good FlagSoft Start into Pre-Biased LoadInternal Soft Start: 4.1 msExtendable Soft-Start Time by External CapacitorOutput Voltage Tracking CapabilityPrecision Enable to Program System UVLOOutput Short-Circuit Protection with Hiccup ModeOvertemperature Thermal Shutdown ProtectionCreate a Custom Design Using the LM46001-Q1 With theWEBENCH®Power Designer

Description

The LM46001-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 1 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46001-Q1 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in 0.5-A and 2-A load current options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCCundervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46001-Q1 device is available in the 16-pin HTSSOP (PWP) package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch. The device is pin-to-pin compatible with LM4360x and LM4600x families. The LM46001A-Q1 version is optimized for PFM operation and recommended for new designs. The LM46001-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 1 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46001-Q1 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in 0.5-A and 2-A load current options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCCundervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46001-Q1 device is available in the 16-pin HTSSOP (PWP) package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch. The device is pin-to-pin compatible with LM4360x and LM4600x families. The LM46001A-Q1 version is optimized for PFM operation and recommended for new designs.