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Part Name(s) : LD2981 LD2981CM25TR LD2981ABM30TR LD2981CM30TR LD2981ABM33TR LD2981ABU33TR LD2981CU33TR LD2981ABM50TR LD2981ABU50TR LD2981CM33TR LD2981CU50TR STMICROELECTRONICS
STMicroelectronics
Description : ULTRA LOW-DROP VOLTAGE REGULATORS WITH INHIBIT View

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.

Features
ULTRA low dropout VOLTAGE (0.17 V typ. at 100 mA load, 7 mV typ. at 1 mA load)
• Very low quiescent current (80 μA typ. at no load in on mode; max 1 μA in off mode)
• Guaranteed output current up to 100 mA
• Logic-controlled electronic shutdown
• Output VOLTAGE of 2.5; 3.0; 3.3; 5.0 V
• Internal current and thermal limit
• ± 0.75% tolerance output VOLTAGE available (A version)
• Output low noise VOLTAGE 160 μVRMS
• Temperature range: -40 to 125 °C
• Small package SOT23-5L and SOT-89
• Fast dynamic response to line and load changes

Part Name(s) : LM2931 LM2931AD33R LM2931AD50R LM2931ADT50R LM2931AXX33 LM2931AXX50 LM2931AZ33R LM2931AZ50R LM2931BD50R LM2931BXX50 LM2931BZ50AP LM2931BZ50R LM2931D-R LM2931XX ST-Microelectronics
STMicroelectronics
Description : Very low drop VOLTAGE REGULATORS WITH INHIBIT function View

Description
The LM2931xx are very low drop REGULATORS. The very low drop VOLTAGE and the low quiescent current make them particular suitable for low noise, low power applications and in battery powered systems. In the 8 pin configuration (SO-8), fully compatible to the older L78Lxx family, a shut down logic control function is available.

Features
■ Very low dropout VOLTAGE (0.15 V typ. at 10 mA load)
■ Low quiescent current (typ. 2.5 mA, at 100 mA load)
■ Output current up to 100 mA
■ Adjustable (from VOUT= 2.5 V only SO-8) and fixed (3.3 V & 5 V) output VOLTAGE version
■ Internal current and thermal limit
■ Load dump protection up to 60 V
■ Reverse transient protection up to -50 V
■ Temperature range: -40 to 125 °C
■ Package available: TO-92, DPAK, SO-8 (WITH INHIBIT control)

Part Name(s) : LK115 ST-Microelectronics
STMicroelectronics
Description : Very low drop VOLTAGE REGULATORS WITH INHIBIT View

Description
The LK115 is a series of very low drop VOLTAGE REGULATORS, available in SO-8 package.
The very low drop VOLTAGE (0.2 V) and very low quiescent current (0.01 µA in OFF mode, 280 µA in ON mode) make it particularly suitable for low noise, low power applications and especially in battery-powered systems.
Both active high and active low shutdown logic control are available (pin 2 and 3). This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption.
It only requires a 2.2 µF capacitor for stability saving space and costs.

Features
• Very LOW-DROPout VOLTAGE (0.2 V typ.)
• Very low quiescent current (typ. 0.01 µA in OFF mode, 280 µA in ON mode)
• Output current up to 100 mA
• Two logic-controlled electronic shutdowns
• Output VOLTAGEs of 3.0; 3.3; 5.0 V
• Internal current and thermal limit
• A 2.2 µF capacitor for stability
• VOUT tolerance ± 3% at 25 °C
• Supply VOLTAGE rejection: 80 dB (typ.)
• Temperature range: -40 °C to 125 °C

Part Name(s) : LD2979 LD2979M28 LD2979M30 LD2979M32 LD2979M33 LD2979M38 LD2979M50 ST-Microelectronics
STMicroelectronics
Description : VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT View

DESCRIPTION
The LD2979 series are very Low Drop REGULATORS available in SOT23-5L and TO-92.
The very low drop-VOLTAGE and the very low quiescent current make them particularly suitable for low noise, low power applications and in battery powered systems.
Shutdown Logic Control function is available on five pin version (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.

■ VERY LOW DROPOUT VOLTAGE (0.2V TYP. AT 50mA LOAD)
■ VERY LOW QUIESCENT CURRENT (TYP. 500µA AT50mA LOAD)
■ OUTPUT CURRENT UP TO 50 mA
■ LOGIC-CONTROLLEDELECTRONIC SHUTDOWN
■ OUTPUT VOLTAGESOF 2.85; 3.0; 3.2; 3.3; 3.8; 5.0V
■ INTERNAL CURRENT AND THERMAL LIMIT
■ SUPPLY VOLTAGE REJECTION: 63dB (TYP)
■ ONLY 1µF FOR STABILITY
■ SELECTION AT 25 °C
■ TEMPERATURE RANGE: -25 TO 125 °C
■ PACKAGE AVAILABLE:SOT23-5L AND TO-92


Part Name(s) : LD2979XX LD2979XX30 LD2979M30TR LD2979XX33 LD2979M33TR LD2979XX38 LD2979M38TR LD2979XX50 LD2979M50TR ST-Microelectronics
STMicroelectronics
Description : Very low drop VOLTAGE REGULATORS WITH INHIBIT View

Description
The LD2979 series are very low drop REGULATORS available in SOT23-5L.
The very low drop-VOLTAGE and the very low quiescent current make them particularly suitable for low noise, low power applications and in battery powered systems.
Shutdown logic control function is available on five pin version (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.

Features
■ Very low dropout VOLTAGE (0.2 V typ. at 50 mA load)
■ Very low quiescent current (typ. 500 µA at 50 mA load)
■ Output current up to 50 mA
■ Logic-controlled electronic shutdown
■ Output VOLTAGEs of 3.0; 3.3; 3.8; 5.0 V
■ Internal current and thermal limit
■ Supply VOLTAGE rejection: 63 dB (typ)
■ Only 1 µF for stability
■ Selection at 25 °C
■ Temperature range: -25 °C to 125 °C
■ Package available: SOT23-5L

Part Name(s) : LD2979 LD2979M30TR LD2979M33TR STMICROELECTRONICS
STMicroelectronics
Description : Very low drop VOLTAGE REGULATORS WITH INHIBIT View

Description
The LD2979 is a very low drop regulator available in SOT23-5L.
The very low drop-VOLTAGE and the very low quiescent current make them particularly suitable for low noise, low power applications and in battery powered systems.
Shutdown logic control function is available on five pin version (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.

Features
• Very low dropout VOLTAGE (0.2 V typ. at 50 mA load)
• Very low quiescent current (typ. 500 µA at 50 mA load)
• Output current up to 50 mA
• Logic-controlled electronic shutdown
• Output VOLTAGEs of 3.0 and 3.3 V
• Internal current and thermal limit
• Supply VOLTAGE rejection: 63 dB (typ)
• Only 1 µF for stability
• Temperature range: -25 °C to 125 °C
• Package available: SOT23-5L

Part Name(s) : LF12 LF12C LF12AB LF12CV5V LF12ABV5V LF12CV LF12ABV LF12CP LF12ABP LF12CDT LF12ABDT LF12CPT LF12ABPT ST-Microelectronics
STMicroelectronics
Description : VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT View

DESCRIPTION
The LF00 series are very Low Drop REGULATORS available in PENTAWATT, TO-220, ISOWATT220, DPAK and PPAK package and in a wide range of output VOLTAGEs.
The very Low Drop VOLTAGE (0.45V) and the very low quiescent current make them particularly suitable for Low Noise, Low Power applications and specially in battery powered systems.

■ VERY LOW DROPOUT VOLTAGE (0.45V)
■ VERY LOW QUIESCENT CURRENT (TYP. 50 µA IN OFF MODE, 500µA IN ON MODE)
■ OUTPUT CURRENT UP TO 500 mA
■ LOGIC-CONTROLLEDELECTRONIC SHUTDOWN
■ OUTPUT VOLTAGESOF 1.25; 1.5; 1.8; 2.5; 2.7; 3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 8.5; 9; 12V
■ INTERNAL CURRENT AND THERMAL LIMIT
■ ONLY 2.2µF FOR STABILITY
■ AVAILABLEIN ± 1% (AB) OR ± 2% (C) SELECTIONAT 25 °C
■ SUPPLY VOLTAGE REJECTION: 80 db (TYP.)
■ TEMPERATURE RANGE: -40 TO 125 °C

Part Name(s) : LD2979Z28AP LD2979Z30AP LD2979Z32AP LD2979Z33AP LD2979Z38AP LD2979Z50AP LD2979Z28 LD2979Z30 LD2979Z32 LD2979Z33 LD2979Z38 LD2979Z50 ST-Microelectronics
STMicroelectronics
Description : VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT View

ESCRIPTION
The LD2979 series are very Low Drop REGULATORS available in SOT23-5L and TO-92.
The very low drop-VOLTAGE and the very low quiescent current make them particularly suitable for low noise, low power applications and in battery powered systems.
Shutdown Logic Control function is available on five pin version (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.

■ VERY LOW DROPOUT VOLTAGE (0.2V TYP. AT 50mA LOAD)
■ VERY LOW QUIESCENT CURRENT (TYP. 500µA AT 50mA LOAD)
■ OUTPUT CURRENT UP TO 50mA
■ LOGIC-CONTROLLED ELECTRONIC SHUTDOWN
■ OUTPUT VOLTAGES OF 2.85; 3.0; 3.2; 3.3; 3.8; 5.0V
■ INTERNAL CURRENT AND THERMAL LIMIT
■ SUPPLY VOLTAGE REJECTION: 63dB (TYP)
■ ONLY 1µF FOR STABILITY
■ SELECTION AT 25°C
■ TEMPERATURE RANGE: -25°C TO 125°C
■ PACKAGE AVAILABLE: SOT23-5L AND TO-92

Part Name(s) : L4987 L4987CPT30 L4987CPT50 L4987CPT87 L4987CPT120 ST-Microelectronics
STMicroelectronics
Description : VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG View

DESCRIPTION
The L4987 is a very low drop regulator available in PPAK. The very low drop-VOLTAGE (0.5V Max at 200 mA) and the very low quiescent current make it particularly suitable for low noise, low power applications, and in battey powered systems. The input dump protection up to 40V makes it ideal for automotive applications. a shutdown Logic Control function is available (pin2, TTL compatible). This means that when the device is used as a local regulator, it is possible to put a part of the boad in standby, decreasing the total power consumption.

■ VERY LOW DROPOUT VOLTAGE (0.25V TYP.)
■ DROPOUT CONTROL FLAG
■ VERY LOW QUIESCENT CURRENT (TYP. 90 µA IN OFF MODE, 500µA IN ON MODE)
■ OUTPUT CURRENT UP TO 200 mA
■ LOGIC-CONTROLLEDELECTRONIC SHUTDOWN
■ OUTPUT VOLTAGESOF 3V, 5V 8.7V 12V
■ INTERNAL CURRENT AND THERMAL LIMIT
■ ONLY 2.2µF FOR STABILITY
■ AVAILABLEIN ± 2% SELECTION AT 25 oC
■ SUPPLY VOLTAGE REJECTION: 70 dB (TYP.)

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