AMS4122 SINGLE 4A/DUAL 2A BUCK CONVERTER IN SO8
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.
Applications: LCD TVs and LCD Monitors, Computer Peripherals, Portable (Notebook) Computers, Industrial Power Supply, Point of Regulation for High Performance Electronics, Consumer Electronics, Audio Power Amplifiers, Battery Chargers, Pre-Regulator for Linear Regulators.
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Sheet AMS4122
AMS4154 2A SYNCHRONUS PWM BUCK CONVERTER
The AMS4154 is a step-down converter for high voltage applications. Current mode operation provides easier compensation and fast transient response. Internal cycle-by-cycle current limiting and thermal shutdown provides the necessary protection in faults situation. A 5V reference voltage is available that can supply up to 2mA current.
Applications: LCD TVs and LCD Monitors, Portable (Notebook) Computers, Industrial Power Supply, Point of Regulation for High Performance Electronics, Consumer Electronics, Audio Power Amplifiers, Audio Power Amplifiers, Pre-Regulator for Linear Regulators, Automotive electronics.
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Sheet AMS4154
AMS4106 5A SYNCHRONUS PWM BUCK CONVERTER
AMS4106 is a medium output current synchronous buck converter. The High side switch is integrated into the device and for the Low side provides an adaptive gate drive for the external FET. For low current operation the external FET can be replaced with a Schottky diode allowing asynchronous operation. The part has either a fixed internal present PWM frequency of 250 kHz, or externally adjustable up to 600 kHz, allowing smaller inductors where efficiency is less critical and faster transient response is needed. The part has enable pin with virtual zero power in shutdown mode. A power good is provided with open collector to facilitate power ready functions. The part is available in SOIC 16 thermally enhanced packages.
Applications: LCD TVs and LCD Monitors, Computer Peripherals, Portable (Notebook) Computers, Industrial Power Supply, Point of Regulation for High Performance Electronics, Consumer Electronics, Audio Power Amplifiers.
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Sheet AMS4106
AMS6101 2A SWITCH STEP-UP DC/DC CONVERTER
The AMS6101 is an adjustable step-up DC/DC converter with a 2A internal switch. With the ability to set the output voltage up to 23V, the AMS6101 is an ideal part for biasing TFT displays. The AMS6101 can be operated at switching frequencies of 600 kHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output. The AMS6101 is available in a low profile 8-lead SOIC EDP (thermally enhanced) package.
Applications: LCD TVs and LCD Monitors, Portable (Notebook) Computers, Handheld Devices, Portable Applications, Consumer Electronics, Battery Chargers, GSM/CDMA Phones, Digital Cameras.
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Sheet AMS6101
AMS3106 500mA LOW DROPOUT VOLTAGE REGULATOR
The AMS3106 is a 500mA low dropout fixed voltage regulator, featuring an internal electronic switch controlled by TTL or CMOS logic levels. When the Enable pin is pulled to a logic high level, the device is in the ON state. Designed specifically for battery powered applications where low quiescent current, low dropout and low standby current are required, the AMS3106 is ideal to use in standby power systems. Like other regulators the AMS3106 series also includes internal current limiting and thermal shutdown. A high precision 0.6V voltage reference enables the device to provide very low output voltages. A key feature includes a reference bypass pin to improve its low-noise performance for fixed output versions.
Ideal for space critical applications, the AMS3106 is available in the 5-pin SOT-23 surface mount package and 8-pin SOIC. The Power Good option is used when the Output Voltage drop must be detected. If the Output Voltage drops by approximately 15% of its nominal value, the open collector on PG pin will pull down to Low state.
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Applications: Battery Powered Systems , Portable (Notebook) Computers, Handheld Devices, Portable Instrumentation, Portable Consumer Equipment, Personal Communication Equipment, Cordless Telephones, Cellular Phones, Radio Control Systems, Low Voltage Systems, MP3 Player.
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Sheet AMS3106
AMS421
0.5V SHUNT REGULATOR
AMS421 is a four-terminal adjustable open collector shunt regulator with guaranteed temperature stability over the entire range of operation. The output voltage can be set to any value between 0.5V (VREF) and 15V by adding two external resistors. AMS421 is available 5 pin SOT-23 packages.
Applications: Battery Powered Systems, Switching Power Supplies, Isolated Power Supplies, Telecommunications, Notebook/Personal Computer, Monitors/VCR/TV, Error Amplifiers, Opto-coupler Driver.
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Sheet AMS421
AMS222
COMPLIMENTARY OUTPUT OSCILLATOR/CLOCK GENERATOR
AMS222 is a low-cost, oscillator intended to be used as an external clock for low-frequency applications. The device consists of a resistor-programmed oscillator with complementary output stage. An external resistor allows for output frequency range to be adjusted from 10kHz to 6MHz. AMS222 is offered in SOT-23 5-leads package.
Applications: Switch-Mode Power Supplies, Servers, Printers, Embedded Microcontrollers, Industrial Controls, Automotive Applications, Toys.
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Sheet AMS222
AMS5105 500mA CMOS LOW DROPOUT VOLTAGE REGULATOR
AMS5105 are positive fixed and adjustable voltage regulators ideally suited for use in battery-powered systems. These devices feature very low quiescent current (500uA or less) when supplying loads up to 500mA. The AMS5105 is offered in 5 lead SOT-23, SOT-89, SOT-223, and 8 lead SOIC packages.
Applications: Cellular Phones, Portable consumer Equipment, Portable (Notebook) Computers, Battery Powered Systems, Portable Instrumentation, Radio Control Systems, CD/DVD drives.
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Sheet AMS5105
AMS2115
FAST TRANSIENT RESPONSE
LOW DROPOUT REGULATOR
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.
Applications: Microprocessors
supplies, Video card supplies,
Low voltage logic supplies,
GTL termination.
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Sheet AMS2115
AMS3101
150mA LOW DROPOUT VOLTAGE REGULATOR
AMS3101 is a 150mA low dropout fixed or adjustable voltage regulator. When the Enable pin is pulled to a logic high level, the device is in the ON state. Designed specifically for battery powered applications where low quiescent current. AMS3101 series includes internal current limiting and thermal shutdown. A high precision 0.6V voltage reference enables the device to provide very low output voltages. A key feature includes a reference bypass pin to improve its low-noise performance for fixed output versions. When the Output Voltage drops by more than 15% of its nominal value, the Power Good pin go in low state.
Applications: Battery Powered Systems, Portable (Notebook) Computers, Portable Instrumentation Portable Consumer Electronics, Radio Control Systems, Low Voltage Systems, MP3 Players.
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Sheet AMS3101
AMS4155
2A PWM BUCK CONVERTER
AMS4155 is a monolithic step down switch mode converter with a built in internal power Switch Transistor. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 17µA of supply current. The part is available in 8L SOIC thermally enhanced packages.
Applications: Battery Chargers, Portable (Notebook) Computers, Industrial Power Supply, Point of Regulation for High Performance Electronics, Consumer Electronics, Audio Power Amplifiers, Distributed Power Systems, LCD TVs and LCD Monitors.
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Sheet AMS4155
