LM5009A Series

6-95V Wide Vin, 150mA Constant On-Time Non-Synchronous Buck Regulator

Catalog

6-95V Wide Vin, 150mA Constant On-Time Non-Synchronous Buck Regulator

Part	Function	Voltage - Input (Max) [Max]	Package / Case	Supplier Device Package	Voltage - Output (Max) [Max]	Topology	Output Type	Frequency - Switching [Min]	Frequency - Switching [Max]	Output Configuration	Current - Output	Number of Outputs	Voltage - Output (Min/Fixed)	Mounting Type	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case [custom]	Package / Case	Supplied Contents	Voltage - Output	Board Type	Utilized IC / Part	Frequency - Switching	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Outputs and Type	Outputs and Type	Regulator Topology
Texas Instruments LM5009ASDX/NOPB	Step-Down	95 V	8-WDFN Exposed Pad	8-WSON (4x4)	85 V	Buck	Adjustable	50 kHz	1.1 MHz	Positive	150 mA	1	2.5 V	Surface Mount	6 V	-40 °C	125 ¯C
Texas Instruments LM5009ASD/NOPB	Step-Down	95 V	8-WDFN Exposed Pad	8-WSON (4x4)	85 V	Buck	Adjustable	50 kHz	1.1 MHz	Positive	150 mA	1	2.5 V	Surface Mount	6 V	-40 °C	125 ¯C
Texas Instruments LM5009MMX	Step-Down	95 V	8-MSOP 8-TSSOP		85 V	Buck	Adjustable			Positive	150 mA	1	2.5 V	Surface Mount	9.5 V	-40 °C	125 ¯C	0.118 in	3 mm
Texas Instruments LM5009EVAL											150 mA									Board(s)	10 V	Fully Populated	LM5009	240 kHz	DC/DC Step Down	95 V	12 V	Non-Isolated	1	Buck
Texas Instruments LM5009SDC	Step-Down	95 V	8-WDFN Exposed Pad	8-WSON (4x4)	85 V	Buck	Adjustable			Positive	150 mA	1	2.5 V	Surface Mount	9.5 V	-40 °C	125 ¯C
Texas Instruments LM5009MMX/NOPB	Step-Down	95 V	8-MSOP 8-TSSOP		85 V	Buck	Adjustable			Positive	150 mA	1	2.5 V	Surface Mount	9.5 V	-40 °C	125 ¯C	0.118 in	3 mm
Texas Instruments LM5009SDX/NOPB	Step-Down	95 V	8-WDFN Exposed Pad	8-WSON (4x4)	85 V	Buck	Adjustable			Positive	150 mA	1	2.5 V	Surface Mount	9.5 V	-40 °C	125 ¯C
Texas Instruments LM5009AMM/NOPB	Step-Down	95 V	8-MSOP 8-TSSOP		85 V	Buck	Adjustable	50 kHz	1.1 MHz	Positive	150 mA	1	2.5 V	Surface Mount	6 V	-40 °C	125 ¯C	0.118 in	3 mm
Texas Instruments LM5009AEVAL/NOPB											150 mA									Board(s)	5 V	Fully Populated	LM5009A	130 kHz	DC/DC Step Down	75 V	8 V	Non-Isolated	1	Buck
Texas Instruments LM5009SDCX	Step-Down	95 V	8-WDFN Exposed Pad	8-WSON (4x4)	85 V	Buck	Adjustable			Positive	150 mA	1	2.5 V	Surface Mount	9.5 V	-40 °C	125 ¯C

Catalog

6-95V Wide Vin, 150mA Constant On-Time Non-Synchronous Buck Regulator

Key Features

• Operating Input Voltage Range: 6 V to 95 VIntegrated 100-V, N-Channel Buck SwitchInternal Start-Up RegulatorNo Loop Compensation RequiredUltra-Fast Transient ResponseON Time Varies Inversely With Input VoltageOperating Frequency Remains Constant With Varying Line Voltage and Load CurrentAdjustable Output Voltage From 2.5 VHighly Efficient OperationPrecision Internal ReferenceLow Bias CurrentIntelligent Current LimitThermal Shutdown8-Pin VSSOP and 8-Pin WSON (4 mm × 4 mm) PackagesOperating Input Voltage Range: 6 V to 95 VIntegrated 100-V, N-Channel Buck SwitchInternal Start-Up RegulatorNo Loop Compensation RequiredUltra-Fast Transient ResponseON Time Varies Inversely With Input VoltageOperating Frequency Remains Constant With Varying Line Voltage and Load CurrentAdjustable Output Voltage From 2.5 VHighly Efficient OperationPrecision Internal ReferenceLow Bias CurrentIntelligent Current LimitThermal Shutdown8-Pin VSSOP and 8-Pin WSON (4 mm × 4 mm) Packages

Description

The LM5009A is a functional variant of the LM5009 COT buck switching regulator. The functional differences of the LM5009A are: The minimum input operating voltage is 6 V, the ON-time equation is slightly different, and the requirement for a minimum load current is removed. The LM5009A step-down switching regulator features all of the functions required to implement a low cost, efficient, buck bias regulator. This high voltage regulator contains an 100-V N-channel buck switch. The device is easy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSON packages. The regulator is based on a control scheme using an ON time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant. The control scheme requires no loop compensation. An intelligent current limit is implemented with forced OFF time, which is inversely proportional to VOUT. This scheme ensures short-circuit control while providing minimum foldback. Other features include: thermal shutdown, undervoltage lockout (VCC), gate drive undervoltage lockout, max duty cycle limiter, and a precharge switch. The LM5009A is a functional variant of the LM5009 COT buck switching regulator. The functional differences of the LM5009A are: The minimum input operating voltage is 6 V, the ON-time equation is slightly different, and the requirement for a minimum load current is removed. The LM5009A step-down switching regulator features all of the functions required to implement a low cost, efficient, buck bias regulator. This high voltage regulator contains an 100-V N-channel buck switch. The device is easy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSON packages. The regulator is based on a control scheme using an ON time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant. The control scheme requires no loop compensation. An intelligent current limit is implemented with forced OFF time, which is inversely proportional to VOUT. This scheme ensures short-circuit control while providing minimum foldback. Other features include: thermal shutdown, undervoltage lockout (VCC), gate drive undervoltage lockout, max duty cycle limiter, and a precharge switch.