LD2981 Series

Ultra low drop voltage regulators with inhibit low ESR output

Catalog

Ultra low drop voltage regulators with inhibit low ESR output

Part	Number of Regulators	Protection Features	Voltage Dropout (Max) [Max]	Current - Supply (Max) [Max]	Current - Quiescent (Iq)	Voltage - Input (Max) [Max]	Current - Output	Package / Case	Voltage - Output (Min/Fixed)	Supplier Device Package	Mounting Type	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Control Features
STMicroelectronics LD2981CU33TR	1	Over Current Over Temperature	0.375 V	2.6 mA	150 çA	16 V	100 mA	TO-243AA	3.3 V	SOT-89-3	Surface Mount	1.81 mOhm	125 °C	-40 °C	Positive
STMicroelectronics LD2981CM50TR	1	Over Current Over Temperature	0.375 V	2.6 mA	150 çA	16 V	100 mA	SC-74A SOT-753	5 V	SOT-23-5	Surface Mount	1.81 mOhm	125 °C	-40 °C	Positive	Enable
STMicroelectronics LD2981ABM38TR	1	Over Current Over Temperature	0.375 V	2.6 mA	150 çA	16 V	100 mA	SC-74A SOT-753	3.8 V	SOT-23-5	Surface Mount	1.81 mOhm	125 °C	-40 °C	Positive	Enable
STMicroelectronics LD2981CU50TR	1	Over Current Over Temperature	0.375 V	2.6 mA	150 çA	16 V	100 mA	TO-243AA	5 V	SOT-89-3	Surface Mount	1.81 mOhm	125 °C	-40 °C	Positive
STMicroelectronics LD2981ABM50TR	1	Over Current Over Temperature	0.375 V	2.6 mA	150 çA	16 V	100 mA	SC-74A SOT-753	5 V	SOT-23-5	Surface Mount	1.81 mOhm	125 °C	-40 °C	Positive	Enable
STMicroelectronics LD2981CU18TR	1	Over Current Over Temperature	0.375 V	2.6 mA	150 çA	16 V	100 mA	TO-243AA	1.8 V	SOT-89-3	Surface Mount	1.81 mOhm	125 °C	-40 °C	Positive
STMicroelectronics LD2981CM18TR	1	Over Current Over Temperature	0.375 V	2.6 mA	150 çA	16 V	100 mA	SC-74A SOT-753	1.8 V	SOT-23-5	Surface Mount	1.81 mOhm	125 °C	-40 °C	Positive	Enable

Catalog

Ultra low drop voltage regulators with inhibit low ESR output

Description

The LD2981 is a 100 mA fixed-output voltage regulator. The low-drop voltage and the ultra low quiescent current make them suitable for low noise, low power applications and in battery powered systems. The quiescent current in sleep mode is less than 1 μA when INHIBIT pin is pulled low. Shutdown logic control function is available on pin n° 3 (TTL compatible). This means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. The LD2981 is designed to work with low ESR ceramic capacitor. Typical applications are in cellular phone, palmtop/laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera.