LM61480-Q1 Series

Automotive, 8A low-EMI buck converter with thermally enhanced package for dual-side cooling

Catalog

Automotive, 8A low-EMI buck converter with thermally enhanced package for dual-side cooling

Part	Output Configuration	Mounting Type	Package / Case	Number of Outputs	Voltage - Output (Max) [Max]	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Qualification	Grade	Frequency - Switching	Frequency - Switching [Min]	Frequency - Switching [Max]	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Synchronous Rectifier	Supplier Device Package	Function	Current - Output	Topology	Voltage - Input (Min) [Min]	Output Type
Texas Instruments LM61480QRPHRQ1	Positive	Surface Mount Wettable Flank	16-PowerVFQFN	1	34.2 V	36 V	1 V	AEC-Q100	Automotive	2.2 MHz 400 kHz	200 kHz	2.2 MHz	Adjustable	150 °C	-40 °C		16-VQFN-HR (4.5x3.5)	Step-Down	8 A	Buck	3 V
Texas Instruments LM61480Q4RPHRQ1	Positive	Surface Mount Wettable Flank	16-PowerVFQFN	1		36 V	4 V	AEC-Q100	Automotive	2.2 MHz 400 kHz	200 kHz	2.2 MHz		150 °C	-40 °C		16-VQFN-HR (4.5x3.5)	Step-Down	8 A	Buck	3 V	1.81 mOhm

Catalog

Automotive, 8A low-EMI buck converter with thermally enhanced package for dual-side cooling

Key Features

• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TAFunctional Safety-CapableDocumentation available to aid functional safety system designInput voltage range from 3 V to 36 VRESEToutput with filter and delayed releaseDesigned for low EMI:CISPR 25 class 5 compliant EVMPin-configurable spread spectrumAdjustable SW node rise timeAbove and below AM band operation: pin configurable 400 kHz and 2.2 MHz fixed or adjustable from 200 kHz – 2.2 MHzLow EMI symmetrical pinoutLight load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)High-efficiency solution95% efficient for an 8-A load5-µA input current while unloaded in auto mode<1-µA shutdown current (typical)High power densityBuilt-in compensation, soft start, current limit, thermal shutdown, and UVLO4.5-mm × 3.5-mm wettable flank QFN packageϴJA= 21.6°C/W, measured onLM61495RPHEVMAEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TAFunctional Safety-CapableDocumentation available to aid functional safety system designInput voltage range from 3 V to 36 VRESEToutput with filter and delayed releaseDesigned for low EMI:CISPR 25 class 5 compliant EVMPin-configurable spread spectrumAdjustable SW node rise timeAbove and below AM band operation: pin configurable 400 kHz and 2.2 MHz fixed or adjustable from 200 kHz – 2.2 MHzLow EMI symmetrical pinoutLight load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)High-efficiency solution95% efficient for an 8-A load5-µA input current while unloaded in auto mode<1-µA shutdown current (typical)High power densityBuilt-in compensation, soft start, current limit, thermal shutdown, and UVLO4.5-mm × 3.5-mm wettable flank QFN packageϴJA= 21.6°C/W, measured onLM61495RPHEVM

Description

The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V. The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation. An open-drainRESEToutput, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C. The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V. The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation. An open-drainRESEToutput, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.