LMR34206-Q1 Series

4.2-V to 42-V, 0.6-A ultra-small synchronous step-down converter

Catalog

4.2-V to 42-V, 0.6-A ultra-small synchronous step-down converter

Part	Mounting Type	Voltage - Input (Max) [Max]	Grade	Package / Case	Output Configuration	Function	Qualification	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Voltage - Input (Min) [Min]	Output Type	Frequency - Switching	Current - Output	Voltage - Output (Min/Fixed)	Topology	Number of Outputs
Texas Instruments LMR34206SC3QRNXTQ1	Surface Mount Wettable Flank	42 V	Automotive	12-PowerVFQFN	Positive	Step-Down	AEC-Q100	-40 °C	125 °C	12-VQFN-HR (3x2)	4.2 V	1.81 mOhm	2.1 MHz	600 mA	3.3 V	Buck	1
Texas Instruments LMR34206SC5QRNXRQ1	Surface Mount Wettable Flank	42 V	Automotive	12-PowerVFQFN	Positive	Step-Down	AEC-Q100	-40 °C	125 °C	12-VQFN-HR (3x2)	4.2 V	1.81 mOhm	2.1 MHz	600 mA	5 V	Buck	1
Texas Instruments LMR34206FSC3RNXTQ1	Surface Mount Wettable Flank	42 V	Automotive	12-PowerVFQFN	Positive	Step-Down	AEC-Q100	-40 °C	125 °C	12-VQFN-HR (3x2)	4.2 V	1.81 mOhm	2.1 MHz	600 mA	3.3 V	Buck	1
Texas Instruments LMR34206SC5QRNXTQ1	Surface Mount Wettable Flank	42 V	Automotive	12-VFQFN	Positive	Step-Down	AEC-Q100	-40 °C	125 °C	12-VQFN-HR (3x2)	4.2 V	1.81 mOhm	2.1 MHz	600 mA	5 V	Buck	1
Texas Instruments LMR34206FSC3RNXRQ1	Surface Mount Wettable Flank	42 V	Automotive	12-PowerVFQFN	Positive	Step-Down	AEC-Q100	-40 °C	125 °C	12-VQFN-HR (3x2)	4.2 V	1.81 mOhm	2.1 MHz	600 mA	3.3 V	Buck	1
Texas Instruments LMR34206FSC5RNXTQ1	Surface Mount Wettable Flank	42 V	Automotive	12-PowerVFQFN	Positive	Step-Down	AEC-Q100	-40 °C	125 ¯C	12-VQFN-HR (3x2)	4.2 V	1.81 mOhm	2.1 MHz	600 mA	5 V	Buck	1
Texas Instruments LMR34206SC3QRNXRQ1	Surface Mount Wettable Flank	42 V	Automotive	12-PowerVFQFN	Positive	Step-Down	AEC-Q100	-40 °C	125 °C	12-VQFN-HR (3x2)	4.2 V	1.81 mOhm	2.1 MHz	600 mA	3.3 V	Buck	1

Catalog

4.2-V to 42-V, 0.6-A ultra-small synchronous step-down converter

Key Features

• AEC-Q100-qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TADesigned for automotive applicationsJunction temperature range –40°C to +150°CProtection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection0.2-V dropout with 0.6-A load (typical)±1.5% reference voltage tolerance3.3-V, 5-V fixed-output voltage optionsSuited for scalable power suppliesPin compatible with:LMR36015/06-Q1(60 V, 0.6 A or 1.5 A)LMR33620/30-Q1(36 V, 2 A, or 3 A)2.1-MHz frequency optionIntegration reduces solution size and costSmall, 2-mm × 3-mm VQFN package with wettable flanksFew external componentsLow power dissipation across load spectrumIncreased light load efficiency in PFMLow operating quiescent current of 24 µAOptimized for ultra low EMI requirementsMeets CISPR25 class 5 standardHotrod™ package minimizes switch node ringingParallel input path minimizes parasitic inductanceSpread spectrum reduces peak emissionsAEC-Q100-qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TADesigned for automotive applicationsJunction temperature range –40°C to +150°CProtection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection0.2-V dropout with 0.6-A load (typical)±1.5% reference voltage tolerance3.3-V, 5-V fixed-output voltage optionsSuited for scalable power suppliesPin compatible with:LMR36015/06-Q1(60 V, 0.6 A or 1.5 A)LMR33620/30-Q1(36 V, 2 A, or 3 A)2.1-MHz frequency optionIntegration reduces solution size and costSmall, 2-mm × 3-mm VQFN package with wettable flanksFew external componentsLow power dissipation across load spectrumIncreased light load efficiency in PFMLow operating quiescent current of 24 µAOptimized for ultra low EMI requirementsMeets CISPR25 class 5 standardHotrod™ package minimizes switch node ringingParallel input path minimizes parasitic inductanceSpread spectrum reduces peak emissions

Description

The LMR34206-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, up to of output current is delivered over a wide input voltage range of 4.2 V to 42 V. The LMR34206-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor. The LMR34206-Q1 is in a HotRod™ package which enables low EMI, higher efficiency, and the smallest package to die ratio. The device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LMR34206-Q1 are designed to simplify implementation for a wide range of end equipment. The LMR34206-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, up to of output current is delivered over a wide input voltage range of 4.2 V to 42 V. The LMR34206-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor. The LMR34206-Q1 is in a HotRod™ package which enables low EMI, higher efficiency, and the smallest package to die ratio. The device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LMR34206-Q1 are designed to simplify implementation for a wide range of end equipment.