LM2591HV Series

SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator

Catalog

SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator

Part	Function	Voltage - Input (Max) [Max]	Output Type	Topology	Voltage - Output (Min/Fixed)	Mounting Type	Output Configuration	Number of Outputs	Current - Output	Voltage - Input (Min) [Min]	Supplier Device Package	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Max)	Output Type
Texas Instruments LM2591HVT-5.0/NOPB	Step-Down	60 V	1.81 mOhm	Buck	5 V	Through Hole	Positive	1	1 A	4.5 V	TO-220-5	TO-220-5 Formed Leads	-40 °C	125 ¯C
Texas Instruments LM2591HVSX-5.0	Step-Down	60 V	1.81 mOhm	Buck	5 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C
Texas Instruments LM2591HVSX-3.3/NOPB	Step-Down	60 V	1.81 mOhm	Buck	3.3 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C
Texas Instruments LM2591HVT-ADJ/LF16	Step-Down	60 V		Buck	1.2 V	Through Hole	Positive	1	1 A	4.5 V	TO-220-5	TO-220-5 Formed Leads	-40 °C	125 ¯C	57 V	Adjustable
Texas Instruments LM2591HVS-ADJ/NOPB	Step-Down	60 V		Buck	1.2 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C	57 V	Adjustable
Texas Instruments LM2591HVSX-ADJ	Step-Down	60 V		Buck	1.2 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C	57 V	Adjustable
Texas Instruments LM2591HVS-3.3	Step-Down	60 V	1.81 mOhm	Buck	3.3 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C
Texas Instruments LM2591HVT-3.3	Step-Down	60 V	1.81 mOhm	Buck	3.3 V	Through Hole	Positive	1	1 A	4.5 V	TO-220-5	TO-220-5 Formed Leads	-40 °C	125 ¯C
Texas Instruments LM2591HVS-ADJ	Step-Down	60 V		Buck	1.2 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C	57 V	Adjustable
Texas Instruments LM2591HVSX-5.0/NOPB	Step-Down	60 V	1.81 mOhm	Buck	5 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C

Catalog

SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator

Key Features

• 3.3-V, 5-V, and Adjustable Output VersionsAdjustable Version Output Voltage Range: 1.2 Vto 57 V ±4% Maximum Over Line and LoadConditionsSpecified 1-A Output Load CurrentAvailable in 5-Pin PackageInput Voltage Range Up to 60 V150-kHz Fixed Frequency Internal OscillatorON and OFF ControlLow Power Standby Mode, IQTypically 90 µAHigh EfficiencyThermal Shutdown and Current-Limit Protection3.3-V, 5-V, and Adjustable Output VersionsAdjustable Version Output Voltage Range: 1.2 Vto 57 V ±4% Maximum Over Line and LoadConditionsSpecified 1-A Output Load CurrentAvailable in 5-Pin PackageInput Voltage Range Up to 60 V150-kHz Fixed Frequency Internal OscillatorON and OFF ControlLow Power Standby Mode, IQTypically 90 µAHigh EfficiencyThermal Shutdown and Current-Limit Protection

Description

The LM2591HV series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, and an adjustable output version. This series of switching regulators is similar to the LM2590HV, but without some of the supervisory and control features of the latter. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, improved line and load specifications, and a fixed-frequency oscillator. The LM2591HV operates at a switching frequency of 150 kHz, thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-pin package with several different lead bend options, and a 5-pin surface mount package. Other features include a specified ±4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 90-µA standby current. Self-protection features include a two stage current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. The LM2591HV series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, and an adjustable output version. This series of switching regulators is similar to the LM2590HV, but without some of the supervisory and control features of the latter. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, improved line and load specifications, and a fixed-frequency oscillator. The LM2591HV operates at a switching frequency of 150 kHz, thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-pin package with several different lead bend options, and a 5-pin surface mount package. Other features include a specified ±4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 90-µA standby current. Self-protection features include a two stage current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.