GENERAL DESCRIPTION
The AMS2910 series of adjustable and fixed voltage regulators are designed to provide 1A 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 AMS2910 devices are pin compatible with other three-terminal regulators and are offered in the 3 lead TO-220 package, in the 3Lead TO-263 (Plastic DD), in the TO-252 (D PAK) and in the low profile surface mount SOT-223 package.

FEATURES
*Three Terminal Adjustable or Fixed Voltages* 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, and 5.0V
*Output Current of 1A
*Operates Down to 1V Dropout
*Line Regulation: 0.2% Max.
*Load Regulation: 0.4% Max.
*Available in TO-220, TO-263, TO-252 and SOT-223 packages

APPLICATIONS
*High Efficiency Linear Regulators
*Post Regulators for Switching Supplies
*5V to 3.3V Linear Regulator
*Battery Chargers
*Active SCSI Terminators
*Power Management for Notebook
*Battery Powered Instrumentation

AMS2910CT, AMS2910CM, AMS2910CD


 

AMS2910 - 1A LOW DROPOUT VOLTAGE REGULATOR

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  

AMS1086 - 1.5A LOW DROPOUT VOLTAGE REGULATOR

GENERAL DESCRIPTION
The AMS1587 series of adjustable and fixed voltage regulators are designed to provide 3A output current and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V 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 AMS1587 devices are pin compatible with older three-terminal regulators and are offered in 3 lead TO-220 package, 3 and 2 lead TO-263 (Plastic DD) and TO-252 (D PAK) package.

FEATURES
*Three Terminal Adjustable or Fixed Voltages 1.5V, 2.5V, 2.85V, 3.0V, 3.3V, 3.5V and 5.0V
*Output Current of 3A
*Operates Down to 1V Dropout
*Fast Transient response
*Line Regulation: 0.015%
*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

AMS1587CT, AMS1587CT-1.5, AMS1587CT-2.5, AMS1587CT-2.85, AMS1587CT-3.0, AMS1587CT-3.3, AMS1587CT-3.5, AMS1587CT-5.0, AMS1587CM, AMS1587CM-1.5, AMS1587CM-2.5, AMS1587CM-2.85, AMS1587CM-3.0, AMS1587CM-3.3, AMS1587CM-3.5, AMS1587CM-5.0 

 

AMS1587 - 3A LOW DROPOUT VOLTAGE REGULATOR

GENERAL DESCRIPTION
AMS4122 is a dual switching regulator capable to deliver 2A for each channel.
Internally Compensated internal Soft Start makes AMS4122 one of the simplest and easiest switching regulators to use with the minimum external components.
Each regulator has independent hiccup current limit.
The Enable pin turns both devices on when a voltage of 2.5V or higher it is applied to EN pin. Since both devices share one single package the thermal protection turns off both devices when the die temperature exceeds approximately 135°C.
Both regulators are adjustable using a 0.600V reference for low output voltage settings.
The oscillators are 180° phase to each other to reduce the ripples on the input power supply and minimize the power dissipation on the package.
The device can be easily configured for Two Phase single output switching regulator capable of 5A output load.
By applying a 2.5V or greater on feedback pin of the second switching regulator the device enters in Two Phase Mode.
The first benefit of having a Two Phase device is reducing the output ripples by a factor of four as the single phase.
The second benefit is higher output current capability at overall low cost. AMS4122 combined with AMS4123 (2A Switching Regulator + 1A LDO in SO-8) makes complete solution for LCD TV power requirements.

FEATURES
* 2 Independent Asynchronous Buck Converters in SO-8
* Internally compensated
* Built in soft start
* Enable with Zero current shut down
* 400KHz switching per output
* Interleaved oscillator to reduced supply ripple
* Simply re-configures to 2 phase single output
* Up to 4A output in 2 phase mode
* Independent hiccup current limit

APPLICATIONS
* Audio Power Amplifiers
* Portable (Notebook) Computers
* Point of regulation for high performance electronics
* Consumer Electronics
* Desktop Computers
* LCD TVs and LCD monitors
* Distributed Power Systems
* Battery Chargers
* Pre-Regulator for Linear Regulators  

AMS4122 - SINGLE 4A/DUAL 2A BUCK CONVERTER IN SO8

GENERAL DESCRIPTION
TThhee AMS2115 is a single IC controller that drives an external N channel MOSFET as a source follower to produce a fast transient response, low dropout voltage regulator.
The fast transient load performance is obtained by eliminating expensive tantalum or bulk electrolytic output capacitors in the most demanding modern microprocessor applications. Precision-trimmed adjustable and fixed output voltage versions accommodate any required microprocessor power supply voltage.
By selecting the N-channel MOSFET RDS(ON) a very low dropout voltage can be achieved.
A protection feature includes a high side current limit amplifier that activates a circuit to limit the FET gate drive.
A shutdown pin turns off the gate drive and some internal circuits to reduce quiescent current.
AMS2115 is offered in 8L SOIC and 8L PDIP package.

FEATURES
* Fast Transient Response
* Dropout Voltage Defined by FET Used
* Very Tight Load Regulation
* High Side Sense Current Limit

APPLICATIONS
* Microprocessor Supplies
* Video Card Supplies
* Low Voltage Logic Supplies
* GTL Termination

AMS2115P
AMS2115P-1.5
AMS2115P-1.8
AMS2115P-2.5
AMS2115P-3.3
AMS2115P-5.0

 

AMS2115 - FAST TRANSIENT RESPONSE LOW DROPOUT REGULATOR