LM73606-Q1 Series

Automotive qualified 3.5-V to 36-V, 6-A synchronous step-down voltage converter

Catalog

Automotive qualified 3.5-V to 36-V, 6-A synchronous step-down voltage converter

Part	Voltage - Output (Max) [Max]	Output Type	Topology	Voltage - Input (Min) [Min]	Frequency - Switching [Max]	Frequency - Switching [Min]	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Output Configuration	Mounting Type	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Grade	Number of Outputs	Qualification	Current - Output	Supplier Device Package	Function
Texas Instruments LM73606QRNPTQ1	34.2 V	Adjustable	Buck	3.5 V	2.2 MHz	350 kHz	1 V	36 V	Positive	Surface Mount Wettable Flank	30-WFQFN Exposed Pad	-40 °C	125 ¯C	Automotive	1	AEC-Q100	6 A	30-WQFN (6x4)	Step-Down
Texas Instruments LM73606RNPR	34.2 V	Adjustable	Buck	3.5 V	2.2 MHz	350 kHz	1 V	36 V	Positive	Surface Mount Wettable Flank	30-WFQFN Exposed Pad	-40 °C	125 ¯C		1		6 A	30-WQFN (6x4)	Step-Down
Texas Instruments LM73606QRNPRQ1	34.2 V	Adjustable	Buck	3.5 V	2.2 MHz	350 kHz	1 V	36 V	Positive	Surface Mount Wettable Flank	30-WFQFN Exposed Pad	-40 °C	125 ¯C	Automotive	1	AEC-Q100	6 A	30-WQFN (6x4)	Step-Down
Texas Instruments LM73606QURNPRQ1	34.2 V	Adjustable	Buck	3.5 V	2.2 MHz	350 kHz	1 V	36 V	Positive	Surface Mount Wettable Flank	30-WFQFN Exposed Pad	-40 °C	125 ¯C	Automotive	1	AEC-Q100	6 A	30-WQFN (6x4)	Step-Down
Texas Instruments LM73606RNPT	34.2 V	Adjustable	Buck	3.5 V	2.2 MHz	350 kHz	1 V	36 V	Positive	Surface Mount Wettable Flank	30-WFQFN Exposed Pad	-40 °C	125 ¯C		1		6 A	30-WQFN (6x4)	Step-Down

Catalog

Automotive qualified 3.5-V to 36-V, 6-A synchronous step-down voltage converter

Key Features

• AEC-Q100-qualified for automotive applicationsDevice temperature grade 1: –40°C to +125°C ambient operating temperatureDevice HBM ESD classification level 2 kVDevice CDM ESD classification level C5Wettable flanks QFN package (WQFN)Low EMI and low switching noiseLow quiescent current0.8 µA in shutdown (typical)15 µA in active mode with no load (typical)Wide voltage conversion range:tON-MIN= 60 ns (typical)tOFF-MIN= 70 ns (typical)Low MOSFET ON-resistance:RDS_ON_HS= 53 mΩ (typical)RDS_ON_LS= 31 mΩ (typical)Adjustable frequency range: 350 kHz to 2.2 MHzPin-selectable auto mode or forced PWM modeStart-up into pre-biased load, fixed or adjustable soft-start time, and trackingSynchronizable to external clock, internal compensation, power-good flag, and precision enableCycle-by-cycle current limiting, hiccup, UVLO, and thermal shutdown protectionsCreate a custom design with the WEBENCH power designer usingLM73605-Q1orLM73606-Q1AEC-Q100-qualified for automotive applicationsDevice temperature grade 1: –40°C to +125°C ambient operating temperatureDevice HBM ESD classification level 2 kVDevice CDM ESD classification level C5Wettable flanks QFN package (WQFN)Low EMI and low switching noiseLow quiescent current0.8 µA in shutdown (typical)15 µA in active mode with no load (typical)Wide voltage conversion range:tON-MIN= 60 ns (typical)tOFF-MIN= 70 ns (typical)Low MOSFET ON-resistance:RDS_ON_HS= 53 mΩ (typical)RDS_ON_LS= 31 mΩ (typical)Adjustable frequency range: 350 kHz to 2.2 MHzPin-selectable auto mode or forced PWM modeStart-up into pre-biased load, fixed or adjustable soft-start time, and trackingSynchronizable to external clock, internal compensation, power-good flag, and precision enableCycle-by-cycle current limiting, hiccup, UVLO, and thermal shutdown protectionsCreate a custom design with the WEBENCH power designer usingLM73605-Q1orLM73606-Q1

Description

The LM73605-Q1/LM73606-Q1family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A (LM73605-Q1)or 6 A (LM73606-Q1) of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605-Q1/LM73606-Q1 provide exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization to an external clock, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency over the entire load range. The family requires few external components and has a pinout designed for simple PCB layout with optimal EMI and thermal performance. Protection features include thermal shutdown, input undervoltage lookout, cycle-cy-cycle current limiting, and hiccup short-citcuit protection. The LM73605-Q1 and LM73606-Q1 devices are pin-to-pin compatible for easy current scaling. The LM73605-Q1/LM73606-Q1family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A (LM73605-Q1)or 6 A (LM73606-Q1) of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605-Q1/LM73606-Q1 provide exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization to an external clock, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency over the entire load range. The family requires few external components and has a pinout designed for simple PCB layout with optimal EMI and thermal performance. Protection features include thermal shutdown, input undervoltage lookout, cycle-cy-cycle current limiting, and hiccup short-citcuit protection. The LM73605-Q1 and LM73606-Q1 devices are pin-to-pin compatible for easy current scaling.