LM2941C Series

1-A, 26-V, high-PSRR, adjustable low-dropout voltage regulator with enable from 0°C to 125°C

Catalog

1-A, 26-V, high-PSRR, adjustable low-dropout voltage regulator with enable from 0°C to 125°C

Part	Voltage - Output (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Supplier Device Package	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Current - Supply (Max) [Max]	Output Type	Protection Features	Current - Quiescent (Iq)	Control Features	Current - Output	Package / Case	Voltage Dropout (Max) [Max]	Mounting Type	Number of Regulators
Texas Instruments LM2941SX	20 V	125 °C	-40 °C	Positive	TO-263 (DDPAK-5)	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1 V	Surface Mount	1
Texas Instruments LM2941T	20 V	125 °C	-40 °C	Positive	TO-220-5	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	TO-220-5	1 V	Through Hole	1
Texas Instruments LM2941S/NOPB	20 V	125 °C	-40 °C	Positive	TO-263 (DDPAK-5)	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1 V	Surface Mount	1
Texas Instruments LM2941CSX	20 V	125 °C	0 °C	Positive	TO-263 (DDPAK-5)	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1 V	Surface Mount	1
Texas Instruments LM2941LDX/NOPB	20 V	125 °C	-40 °C	Positive	8-WSON (4x4)	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	8-WDFN Exposed Pad	1 V	Surface Mount	1
Texas Instruments LM2941T/NOPB	20 V	125 °C	-40 °C	Positive	TO-220-5	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	TO-220-5	1 V	Through Hole	1
Texas Instruments LM2941T/LB03	20 V	125 °C	-40 °C	Positive	TO-220-5	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	TO-220-5 Formed Leads	1 V	Through Hole	1
Texas Instruments LM2941CS	20 V	125 °C	0 °C	Positive	TO-263 (DDPAK-5)	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1 V	Surface Mount	1
Texas Instruments LM2941T/LF03	20 V	125 °C	-40 °C	Positive	TO-220-5	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	TO-220-5 Formed Leads	1 V	Through Hole	1
Texas Instruments LM2941LD	20 V	125 °C	-40 °C	Positive	8-WSON (4x4)	26 V	5 V	15 mA	Adjustable	Over Temperature Reverse Polarity Short Circuit	10 mA	Enable	1 A	8-WDFN Exposed Pad	1 V	Surface Mount	1

Catalog

1-A, 26-V, high-PSRR, adjustable low-dropout voltage regulator with enable from 0°C to 125°C

Key Features

• Operating VINRange: 6 V to 26 VOutput Voltage Adjustable From 5 V to 20 VDropout Voltage Typically 0.5 V at IOUT= 1 AOutput Current in Excess of 1 ATrimmed Reference VoltageReverse Battery ProtectionInternal Short-Circuit Current LimitMirror Image Insertion ProtectionP+Product Enhancement TestedTTL, CMOS Compatible ON/OFF SwitchWSON Space-Saving PackageOperating VINRange: 6 V to 26 VOutput Voltage Adjustable From 5 V to 20 VDropout Voltage Typically 0.5 V at IOUT= 1 AOutput Current in Excess of 1 ATrimmed Reference VoltageReverse Battery ProtectionInternal Short-Circuit Current LimitMirror Image Insertion ProtectionP+Product Enhancement TestedTTL, CMOS Compatible ON/OFF SwitchWSON Space-Saving Package

Description

The LM2941 positive voltage regulator features the ability to source 1 A of output current with a typical dropout voltage of 0.5 V and a maximum of 1 V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground pin current when the differential between the input voltage and the output voltage exceeds approximately 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN− VOUT≤ 3 V). Designed also for vehicular applications, the LM2941 and all regulated circuitry are protected from reverse battery installations or two-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. Familiar regulator features such as short circuit and thermal overload protection are also provided. The LM2941 positive voltage regulator features the ability to source 1 A of output current with a typical dropout voltage of 0.5 V and a maximum of 1 V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground pin current when the differential between the input voltage and the output voltage exceeds approximately 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN− VOUT≤ 3 V). Designed also for vehicular applications, the LM2941 and all regulated circuitry are protected from reverse battery installations or two-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. Familiar regulator features such as short circuit and thermal overload protection are also provided.