GENERAL DESCRIPTION
The LP2950 and LP2951 are micropower voltage regulators ideally suited for use in battery-powered systems. These devices feature very low quiescent current (typ.75μA), and very low dropout voltage (typ.45mV at light loads and 380mV at 100mA) thus prolonging battery life. The quiescent current increases only slightly in dropout. The LP2950/LP2951 has positive transient protection up to 60V and can survive unregulated input transient up to 20V below ground.
The LP2950 and LP2951 were designed to include a tight initial tolerance (typ. 0.5%), excellent load and line regulation (typ. 0.05%), and a very low output voltage temperature coefficient, making these devices useful as a low-power voltage reference. The LP2950 is offered in the 3-pin TO-92 package. LP2951 is available in 8-pin plastic SOIC and DIP packages and offers three major additional system features. An error flag output warns of a low output voltage, often due to failing batteries on input. The LP2951 also features the logic-compatible shutdown input which enables the regulator to be switched on and off.
The LP2951 device may be pin-strapped for a 5V, 3.3V, or 3V output, or programmed from 1.24V to 29V with an external pair of resistors.

FEATURES
*5V, 3.3V, and 3V Versions at 100mA Output Current
*High Accuracy Output Voltage
*Extremely Low Quiescent Current
*Low Dropout Voltage
*Extremely Tight Load and Line Regulation
*Very Low Temperature Coefficient
*Current and Thermal Limiting
*Needs Minimum Capacitance (1μF) for Stability
*Unregulated DC Positive Transients 60V
ADDITIONAL FEATURES (LP2951 ONLY)
*1.24V to 29V Programmable Output
*Error Flag Warning of Voltage Output Dropout
*Logic Controlled Electronic Shutdown

APPLICATIONS
*Battery Powered Systems
*Portable Consumer Equipment
*Cordless Telephones
*Portable (Notebook) Computers
*Portable Instrumentation
*Radio Control Systems
*Automotive Electronics
*Avionics
*Low-Power Voltage Reference

LP2951, LP2950ACN-X, LP2950CN-X, LP2951ACP-X, LP2951CP-X

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DESCRIPTION
RegulatorThe SPX2941 is a 1A, accurate voltage regulator with a low drop out voltage of 280mV(typ.) at1A. These regulators are specifically designed for low voltage applications that require a lowdropout voltage and a fast transient response. They are fully fault protected against over-current,reverse battery, and positive and negative voltage transients. The SPX2941 is offered in 5-pinTO-220 & TO-263 packages. For a 3A version, refer to the SPX29300 data sheet.

FEATURES
*Adjustable Output Down To 1.25V
*Low Quiescent Current
*Guaranteed 1.5A Peak Output Current
*Low Dropout Voltage of 280mV @ 1A
*Extremely Tight Load and LineRegulation
*Extremely Fast Transient Response
*Reverse-battery Protection
*Internal Thermal and Current LimitProtection
*Zero Current Shutdown
*Standard TO-220 and TO-263packagesFigure

APPLICATIONS
*Powering VGA & Sound Card
*LCD Monitors
*USB Power Supply
*Power PC Supplies
*SMPS Post-Regulator
*High Efficiency Linear Power Supplies
*Battery Charger
*Portable Instrumentation
*Constant Current Regulators
*Adjustable Power Supplies

SPX2941T5, SPX2941T5/TR, SPX2941U5

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DESCRIPTION
The SPX29300/01/02/03 are 3A, highly accurate voltage regulators with a low drop out voltage of 450mV dropout (typical) @ 3A. These regulators are specifically designed for low voltage applications that require a low dropout voltage and a fast transient response. They are fully fault protected against over-current, reverse battery, and positive and negative voltage transients. On-Chip trimming adjusts the reference voltage to 1% initial accuracy. Other features in the 5 pin versions include Enable, and Error Flag.
The SPX29300/01/02/03 are offered in 3 & 5-pin TO-220 & TO-263 packages. For a 1.5A version, refer to the SPX29150 data sheet.

FEATURES
*Adjustable Output Down To 1.25V
*1% Output Accuracy
*Output Current of 3A
*Low Dropout Voltage of 450mV @ 3A
*Extremely Tight Load and Line Regulation
*Extremely Fast Transient Response
*Reverse-Battery Protection
*Zero Current Shutdown (5 pin version)
*Error Flag Signal Output for Out of Regulation State (5 pin version)
*Standard TO-220 and TO-263 Packages

APPLICATIONS
*Powering VGA & Sound Card
*Power PC™ Supplies
*SMPS Post Regulator
*High Efficiency “Green” Computer Systems
*High Efficiency Linear Power Supplies
*Constant Current Regulators
*Adjustable Power Supplies
*Battery Charger

SPX29300U-1-8, SPX29300U-2-5, SPX29300U-3-3, SPX29300U-5-0

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GENERAL DESCRIPTION
The CM1117 series of adjustable and fixed voltage regulators are designed to provide 1A for applications requiring high efficiency. All internal circuitry is designed to operated down to 800mV input to output differential and the dropout voltage is fully specified as a function of load current.
The CM1117 offers current limiting and thermal protection.
The on chip trimming adjusts the reference voltage accuracy to 1%.

FEATURES
*Three Terminal Adjustable or Fixed Voltages: 1.8V, 2.5V, 3.3V, and adjustable.
*Output Current of 1A
*Low dropout voltage: 1V Typ.
*Line Regulation: 0.2% Max
*Load Regulation: 0.4% Max
*Fast Transient Response
*Thermal Protection
*SOT-223 and TO-252 package available

APPLICATIONS
*High Efficiency Linear Regulators
*Post Regulators for Switching Supplies
*Battery Chargers
*Active SCSI Terminators
*Post Regulator for Switching DC/DC Converter
*Battery Powered Instrumentation

CM1117DCN252, CM1117KCN252, CM1117SCN252, CM1117CN252

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GENERAL DESCRIPTION
The AMS1086 series of adjustable and fixed voltage regulators are designed to provide 1.5A output current and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.5V at maximum output current, decreasing at lower load currents.
On-chip trimming adjusts the reference voltage to 1%. Current limit is also trimmed, minimizing the stress under overload conditions on both the regulator and power source circuitry.
The AMS1086 devices are pin compatible with older three-terminal regulators and are offered in 3 lead TO-220 package, 3 lead TO-263 (Plastic DD) and TO-252 (D PAK) package.

FEATURES
*Three Terminal Adjustable or Fixed Voltages 1.5V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V, 3.5V and 5.0V
*Output Current of 1.5A
*Operates Down to 1V Dropout
*Line Regulation: 0.015%
*Load Regulation: 0.1%
*TO-220, TO-263 and TO-252 packages available

APPLICATIONS
*High Efficiency Linear Regulators
*Post Regulators for Switching Supplies
*Microprocessor Supply
*Battery Chargers
*Constant Current Regulators
*Notebook/Personal Computer Supplies
*Portable Instrumentation

AMS1086CT, AMS1086CM, AMS1086CD, AMS1086CT-1.5, AMS1086CM-1.5, AMS1086CD-1.5, AMS1086CT-1.8, AMS1086CM-1.8, AMS1086CD-1.8,
AMS1086CT-2.5, AMS1086CM-2.5, AMS1086CD-2.5, AMS1086CT-2.85, AMS1086CM-2.85, AMS1086CD-2.85, AMS1086CT-3.0, AMS1086CM-3.0, AMS1086CD-3.0, AMS1086CT-3.3, AMS1086CM-3.3, AMS1086CD-3.3,
AMS1086CT-3.5, AMS1086CM-3.5, AMS1086CD-3.5, AMS1086CT-5.0, AMS1086CM-5.0, AMS1086CD-5.0

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