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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

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)

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Part Name(s) : LD2979XX LD2979XX30 LD2979M30TR LD2979XX33 LD2979M33TR LD2979XX38 LD2979M38TR LD2979XX50 LD2979M50TR ST-Microelectronics
STMicroelectronics
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

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Part Name(s) : LK115 LK115D33-TR LK115D50-TR 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

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Part Name(s) : L4987 L4987CPT30 L4987CPT50 L4987CPT87 L4987CPT120 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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Part Name(s) : LF15ABPT-TR LF27CDT-TR LF30CDT-TR LF35ABDT-TR ST-Microelectronics
STMicroelectronics
Description : VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT

Description
The LFxxAB/LFxxC 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

Features
VERY LOW DROPout VOLTAGE (0.45V)
VERY LOW quiescent current (typ. 50 µA in OFF mode, 500 µA in ON mode)
■ Output current up to 500 mA
■ Logic-controlled electronic shutdown
■ Output VOLTAGEs of 1.5; 1.8; 2.5; 2.7; 3; 3.3; 3.5; 5; 6; 8; 8.5; 9; 12V
■ Internal current and thermal limit
■ Only 2.2 µF for stability
■ Available in ± 1% (AB) or ± 2% (C) selection at 25°C
■ Supply VOLTAGE rejection: 80db (typ.)
■ Temperature range: -40 to 125°C

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Part Name(s) : LK115XX30 LK115XX33 LK115XX50 LK115D30-TR LK115D33-TR LK115D50-TR STMICROELECTRONICS
STMicroelectronics
Description : VERY LOW DROP WITH INHIBIT VOLTAGE REGULATORS

Description
The LK115XX series are VERY LOW DROP REGULATORS available in SO-8 package and in a wide range of output VOLTAGEs.
The VERY LOW DROP VOLTAGE (0.2 V) and the VERY LOW quiescent current (0.01 µA in OFF MODE, 280 µA in ON MODE) make them particularly suitable for LOW noise, LOW power applications and specially 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 requires only a 2.2 µF capacitor for stability alLOWing space and cost saving.

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
■ Only 2.2 µF for stability
■ VOUT tolerance ± 3 % at 25 °C
■ Supply VOLTAGE rejection: 80 dB (typ)
■ Temperature range: -40 °C to 125 °C

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Part Name(s) : LM2931AD33 LM2931AD50 LM2931ADT33 LM2931ADT33R LM2931ADT50 LM2931AV33 LM2931AV50 LM2931AZ33 LM2931AZ50 LM2931BD33 LM2931BD50 LM2931BDT33 LM2931BDT33R LM2931BDT50 LM2931BDT50R LM2931BV33 LM2931BV50 LM2931BZ33 LM2931DR ST-Microelectronics
STMicroelectronics
Description : VERY LOW DROP VOLTAGE REGULATOR WITH INHIBIT FUNCTION

DESCRIPTION
The LM2931 series 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 configation (SO-8), fully compatible to the older L78L00 family, a shut down Logic Control function is available.

VERY LOW DROPOUT VOLTAGE (0.15V TYP. AT 10mA LOAD)
LOW QUIESCENT CURRENT (TYP 2.5mA,AT 100mA LOAD)
■ OUTPUT CURRENT UP TO 100mA
■ ADJUSTABLE (FROM VOUT=2.5V ONLY SO-8) AND FIXED (3.3V & 5V) OUTPUT VOLTAGE VERSION
■ INTERNAL CURRENT AND THERMAL LIMIT
■ LOAD DUMP PROTECTION UP TO 60V
■ REVERSE TRANSIENT PROTECTION UP TO -50V
■ TEMPERATURE RANGE: -40 TO 125°C
■ PACKAGE AVAILABLE: TO-92, DPAK,TO-220, SO-8 (WITH INHIBIT CONTROL)

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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

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

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Part Name(s) : LD2985 LD2985BM18R LD2985BM25R LD2985BM28R LD2985BM30R LD2985BM31R LD2985BM33R LD2985BM50R ST-Microelectronics
STMicroelectronics
Description : VERY LOW DROP and LOW noise VOLTAGE regulator WITH INHIBIT function

Description
The LD2985 is a 150 mA fixed output VOLTAGE regulator. The ultra LOW DROP VOLTAGE and the LOW quiescent current make them particularly suitable for LOW noise, LOW power applications, and in battery powered systems. In sleep mode quiescent current is less than 1 µA when INHIBIT pin is pulled LOW. Shutdown logic control function is available on pin 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. An external capacitor, CBYP = 10 nF, connected between bypass pin and GND reduces the noise to 30 µVrms. Typical application are in cellular phone, palmtop laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera.

Features
VERY LOW DROPout VOLTAGE (280 mV at 150 mA and 7 mV at 1 mA load)
VERY LOW quiescent current (2 mA typ. at 150 mA load and 80 µA at no load)
• Output current up to 150 mA
• Logic controlled electronic shutdown
• Output VOLTAGE of 1.8, 2.5, 2.8, 3, 3.1, 3.3, 5 V
• Internal current and thermal limit
LOW output noise VOLTAGE 30 mVrms
• Small package SOT23-5L
• Temperature range: - 40°C to 125 °C

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Part Name(s) : LD2985AM15R LD2985AM285R LD2985AM31R LD2985AM32R LD2985AM35R LD2985AM36R LD2985AM38R LD2985AM40R LD2985AM47R LD2985BM15R LD2985BM285R LD2985BM32R LD2985BM35R LD2985BM36R LD2985BM38R LD2985BM40R LD2985BM47R ST-Microelectronics
STMicroelectronics
Description : VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. COMPATIBLE, WITH INHIBIT FUNCTION

DESCRIPTION
The LD2985 is a 150mA fixed output VOLTAGE regulator. The ultra LOW DROP VOLTAGE and the LOW quiescent current make them particularly suitable for LOW noise, LOW power applications, and in battery powered systems. In sleep mode quiescent current is less than 1µA when INHIBIT pin is pulled LOW. Shutdown Logic Control Function is available on pin 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.
An external capacitor, CBYP=10nF, connected between bypass pin and GND reduce the noise to 30µVrms.
Typical application are in cellular phone, palmtop laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera.

VERY LOW DROPOUT VOLTAGE (280mV AT 150mA AND 7mV AT 1mA LOAD)
VERY LOW QUIESCENT CURRENT (2mA TYP. AT 150mA LOAD AND 80µA AT NO LOAD)
■ OUTPUT CURRENT UP TO 150mA
■ LOGIC CONTROLLED ELECTRONIC SHUTDOWN
■ OUTPUT VOLTAGE OF 1.5, 1.8, 2.5, 2.8, 2.85, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.7, 5V
■ INTERNAL CURRENT AND THERMAL LIMIT
■ AVAILABLE IN ± 1% TOLLERANCE (AT 25°C, A VERSION)
LOW OUTPUT NOISE VOLTAGE 30µVrms
■ SMALLEST PACKAGE SOT23-5L
■ TEMPERATURE RANGE: -40°C TO 125°C

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