LM60440-Q1 Series

Automotive 36-V, 4-A synchronous converter in an enhanced EMI QFN package with wettable flank

Catalog

Automotive 36-V, 4-A synchronous converter in an enhanced EMI QFN package with wettable flank

Part	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Package / Case	Mounting Type	Output Configuration	Voltage - Output (Max)	Number of Outputs	Output Type	Frequency - Switching	Function	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Topology	Voltage - Output (Min/Fixed)	Current - Output	Qualification	Grade	Regulator Topology	Utilized IC / Part	Outputs and Type	Outputs and Type	Main Purpose	Voltage - Output	Contents	Voltage - Input [Min]	Voltage - Input [Max]	Board Type	Supplied Contents
Texas Instruments LM60440DRPKR	3.8 V	36 V	13-PowerWFQFN	Surface Mount Wettable Flank	Positive	24 V	1	Adjustable	1 MHz	Step-Down	150 °C	-40 °C	13-WQFN-HR (3x2)	Buck	1 V	4 A
Texas Instruments LM60440ARPKR	3.8 V	36 V	13-PowerWFQFN	Surface Mount Wettable Flank	Positive	24 V	1	Adjustable	400 kHz	Step-Down	150 °C	-40 °C	13-WQFN-HR (3x2)	Buck	1 V	4 A
Texas Instruments LM60440AQRPKRQ1	3.8 V	36 V	13-PowerWFQFN	Surface Mount Wettable Flank	Positive	24 V	1	Adjustable	400 kHz	Step-Down	150 °C	-40 °C	13-WQFN-HR (3x2)	Buck	1 V	4 A	AEC-Q100	Automotive
Texas Instruments LM60440AQEVM									400 kHz							4 A			Buck	LM60440-Q1	1 Non-Isolated Output Non-Isolated	1	DC/DC Step Down	5 V	Board(s)	3.8 V	36 V	Fully Populated	Board(s)

Catalog

Automotive 36-V, 4-A synchronous converter in an enhanced EMI QFN package with wettable flank

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 designLow EMI and switching noiseMeets CISPR25 class 5 standardEnhanced QFN package minimizes parasitic inductance and switch node ringingConfigured for automotive applicationsStandard QFN footprint: single large thermal pad and all pins accessible from perimeterPin compatible variants:LM60440-Q1(36 V, 4 A)LM60430-Q1(36 V, 3 A)Junction temperature range –40°C to +150°C±1.5% total output regulation accuracyFrequency: 400 kHzOutput voltage range: 1 V to 24 VHigh efficiency power conversion at all loadsPeak efficiency > 95%90% PFM efficiency at 10-mA, 12 VIN, 5 VOUTLow operating quiescent current of 25 µACreate a custom design using the LM60440-Q1 with theWEBENCH®Power DesignerAEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TAFunctional Safety-CapableDocumentation available to aid functional safety system designLow EMI and switching noiseMeets CISPR25 class 5 standardEnhanced QFN package minimizes parasitic inductance and switch node ringingConfigured for automotive applicationsStandard QFN footprint: single large thermal pad and all pins accessible from perimeterPin compatible variants:LM60440-Q1(36 V, 4 A)LM60430-Q1(36 V, 3 A)Junction temperature range –40°C to +150°C±1.5% total output regulation accuracyFrequency: 400 kHzOutput voltage range: 1 V to 24 VHigh efficiency power conversion at all loadsPeak efficiency > 95%90% PFM efficiency at 10-mA, 12 VIN, 5 VOUTLow operating quiescent current of 25 µACreate a custom design using the LM60440-Q1 with theWEBENCH®Power Designer

Description

The LM604x0-Q1 automotive-qualified regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for automotive applications. The LM60430-Q1 drives up to 3-A of load current, and the LM60440-Q1 is industry’s smallest 4A step-down converter. The LM604x0-Q1 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI. The LM604x0-Q1 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0-Q1 are designed to simplify implementation for a wide range of end equipment. The LM604x0-Q1 automotive-qualified regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for automotive applications. The LM60430-Q1 drives up to 3-A of load current, and the LM60440-Q1 is industry’s smallest 4A step-down converter. The LM604x0-Q1 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI. The LM604x0-Q1 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0-Q1 are designed to simplify implementation for a wide range of end equipment.