LM5007 Series

9-75V Wide Vin, 500mA Constant On-Time Non-Synchronous Buck Regulator

Catalog

9-75V Wide Vin, 500mA Constant On-Time Non-Synchronous Buck Regulator

Part	Mounting Type	Topology	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]	Output Configuration	Voltage - Input (Min) [Min]	Current - Output	Voltage - Output (Min/Fixed)	Output Type	Function	Supplier Device Package	Number of Outputs	Voltage - Output (Max) [Max]	Package / Case	Package / Case [custom]	Package / Case	Regulator Topology	Voltage - Output	Utilized IC / Part	Board Type	Voltage - Input [Max]	Voltage - Input [Min]	Supplied Contents	Main Purpose	Outputs and Type	Outputs and Type	Frequency - Switching [Min]	Frequency - Switching [Max]
Texas Instruments LM5007SD	Surface Mount	Buck	-40 °C	125 ¯C	75 V	Positive	9 V	500 mA	2.5 V	Adjustable	Step-Down	8-WSON (4x4)	1	73 V	8-WDFN Exposed Pad
Texas Instruments LM5007MM/NOPB	Surface Mount	Buck	-40 °C	125 ¯C	75 V	Positive	9 V	500 mA	2.5 V	Adjustable	Step-Down		1	73 V	8-MSOP 8-TSSOP	0.118 in	3 mm
Texas Instruments LM5007EVAL/NOPB								400 mA										Buck	10 V	LM5007	Fully Populated	75 V	12 V	Board(s)	DC/DC Step Down	Non-Isolated	1
Texas Instruments LM5007SDX/NOPB	Surface Mount	Buck	-40 °C	125 ¯C	75 V	Positive	9 V	500 mA	2.5 V	Adjustable	Step-Down	8-WSON (4x4)	1	73 V	8-WDFN Exposed Pad
Texas Instruments LM5007MMX	Surface Mount	Buck	-40 °C	125 ¯C	75 V	Positive	9 V	500 mA	2.5 V	Adjustable	Step-Down		1	73 V	8-MSOP 8-TSSOP	0.118 in	3 mm
Texas Instruments LM5007MM/S7003020	Surface Mount	Buck	-40 °C	125 ¯C	75 V	Positive	9 V	500 mA	2.5 V	Adjustable	Step-Down		1	73 V	8-MSOP 8-TSSOP	0.118 in	3 mm											50 kHz	800 kHz
Texas Instruments LM5007MMX/NOPB	Surface Mount	Buck	-40 °C	125 ¯C	75 V	Positive	9 V	500 mA	2.5 V	Adjustable	Step-Down		1	73 V	8-MSOP 8-TSSOP	0.118 in	3 mm
Texas Instruments LM5007MM	Surface Mount	Buck	-40 °C	125 ¯C	75 V	Positive	9 V	500 mA	2.5 V	Adjustable	Step-Down		1	73 V	8-MSOP 8-TSSOP	0.118 in	3 mm

Catalog

9-75V Wide Vin, 500mA Constant On-Time Non-Synchronous Buck Regulator

Key Features

• Versatile Synchronous Buck DC/DC ConverterOperating Input Voltage Range of 9 V to 75 VIntegrated 80-V, 0.7-A N-Channel Buck SwitchInternal High-Voltage VCCRegulatorAdjustable Output VoltageHigh Efficiency OperationAdaptive Constant On-Time Control ArchitectureUltra-Fast Transient ResponseNo Control Loop Compensation RequiredNearly Constant Switching FrequencyPWM On-Time Varies Inversely with Input VoltagePrecision 2.5-V ReferenceLow Input Quiescent CurrentInherent Protection Features for Robust DesignIntelligent Current Limit ProtectionVCC and Gate Drive UVLO ProtectionThermal Shutdown Protection With HysteresisExternal Shutdown Control8-Pin VSSOP and WSON PackagesCreate a Custom Regulator Design UsingWEBENCH®Power DesignerVersatile Synchronous Buck DC/DC ConverterOperating Input Voltage Range of 9 V to 75 VIntegrated 80-V, 0.7-A N-Channel Buck SwitchInternal High-Voltage VCCRegulatorAdjustable Output VoltageHigh Efficiency OperationAdaptive Constant On-Time Control ArchitectureUltra-Fast Transient ResponseNo Control Loop Compensation RequiredNearly Constant Switching FrequencyPWM On-Time Varies Inversely with Input VoltagePrecision 2.5-V ReferenceLow Input Quiescent CurrentInherent Protection Features for Robust DesignIntelligent Current Limit ProtectionVCC and Gate Drive UVLO ProtectionThermal Shutdown Protection With HysteresisExternal Shutdown Control8-Pin VSSOP and WSON PackagesCreate a Custom Regulator Design UsingWEBENCH®Power Designer

Description

The LM5007 0.5-A step-down switching converter features all of the functions needed to implement a low-cost and efficient buck regulator. This high-voltage converter has an integrated 80-V, 0.7-A N-channel buck switch and operates over an input voltage range of 9 V to 75 V. The device is easy to implement and is provided in 8-pin VSSOP and thermally enhanced 8-pin WSON packages. The converter uses a hysteretic control scheme with a PWM on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant with load and input voltage variations. The hysteretic control requires no loop compensation and provides fast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This current limiting scheme ensures short-circuit protection while providing reduced load current foldback. Other protection features include thermal shutdown with automatic recovery, VCCand gate drive undervoltage lockout, and maximum duty cycle limiter. The LM5007 0.5-A step-down switching converter features all of the functions needed to implement a low-cost and efficient buck regulator. This high-voltage converter has an integrated 80-V, 0.7-A N-channel buck switch and operates over an input voltage range of 9 V to 75 V. The device is easy to implement and is provided in 8-pin VSSOP and thermally enhanced 8-pin WSON packages. The converter uses a hysteretic control scheme with a PWM on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant with load and input voltage variations. The hysteretic control requires no loop compensation and provides fast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This current limiting scheme ensures short-circuit protection while providing reduced load current foldback. Other protection features include thermal shutdown with automatic recovery, VCCand gate drive undervoltage lockout, and maximum duty cycle limiter.