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Part Name(s) : LF18ABV5V LF18CV5V
ST-Microelectronics
STMicroelectronics
Description : Very low drop voltage regulators with inhibit

DESCRIPTION
The LF00 series are Very low drop regulators available in PENTAWATT, TO-220, TO-220FP,
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.

Part Name(s) : LF12
ST-Microelectronics
STMicroelectronics
Description : Very low drop voltage regulators with inhibit

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) : LK115
ST-Microelectronics
STMicroelectronics
Description : Very low drop voltage regulators with inhibit

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

Description : Very low drop voltage regulators with inhibit function

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)

Description : Very low drop voltage regulators with inhibit

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

Description : Very low drop voltage regulators with inhibit

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

STMICROELECTRONICS
STMicroelectronics
Description : Very low drop voltage regulators with inhibit

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

Description : Very low drop with inhibit voltage regulators

DESCRIPTION
The LK115D00 series are Very low drop regulators available in SO-8 package and in a wide range of output voltages.
The Very low drop voltage (0.2V) and the Very low quiescent current (0.01µA in OFF MODE, 280µA in ON MODE) make them particularly suitable for low Noise, low Power applications and specially in battery powered systems.

Very low dropOUT voltage (0.2V TYP.)
Very low QUIESCENT CURRENT (TYP. 0.01µA IN OFF MODE, 280µA IN ON MODE)
■ OUTPUT CURRENT UP TO 100 mA
■ TWO LOGIC-CONTROLLED ELECTRONIC SHUTDOWNS
■ OUTPUT voltageS OF 2; 2.5; 3; 3.3; 4; 4.75; 4.85; 5; 5.5V
■ INTERNAL CURRENT AND THERMAL LIMIT
■ ONLY 2.2µF FOR STABILITY
■ VOUT TOLLERANCE ± 3% AT 25 oC
■ SUPPLY voltage REJECTION: 80 db (TYP.)
■ TEMPERATURE RANGE: -40 TO 125 oC

Description : Very low drop voltage regulators with inhibit

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

ST-Microelectronics
STMicroelectronics
Description : Very low drop voltage regulators with inhibit AND dropOUT CONTROL FLAG

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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