3A超低辍学率调节器--AT818
- Dual 1A 1.5MHz同步降压转换器--AT7172
- The AT7172 is a dual high-efficiency Pulse-Width Modulated(PWM) step-down DC-DC converter. It is capable of delivering 1A output current over a wide input voltage range from 2.6V to 5.5V, the AT7172 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and other handheld devices.
- 3A降压转换调节器--AT2596
- The AT2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator capable of driving a 3A load with excellent line and load regulation. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation,and a fixed-frequency oscillator. A standard series
- 150mA低噪音/ 高PSRR双ldo监管器--AT2261
- The AT2261 series are dual voltage regulator ICs with high output voltage accuracy, low supply current, low dropout, and high ripple rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, short circuit protection and a chip enable circuit.These ICs perform with low dropo
3A超低辍学率调节器--AT818
一 概述
The AT818 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very low dropout voltage at up to 3A amps. It operates with a VIN as low as 1.8V,with output voltage programmable as low as 0.8V.The AT818 features ultra low dropout,ideal for
applications where VOUT is veryclose to VIN. Additionally, the AT818 enable pin to further reduce power dissipation while shut down. The enable pin may be tied to VIN if it is not required for ON/OFF control. The AT818 provides excellent regulation over variations in line,load and temperature.The AT818 is available in the PSOP-8 (Exposed Die Pad) package. The output can be programmed from 0.8V to 5V with two external resistive divider.The optimum thermal condition has to con-sider the layout, placement and application to achieve it to satisfy high output current re-quirement.
二 特性
Adjustable Output from 0.8V
Input Voltage as Low as 1.8V
Enable Pin
250mV Dropout @2A
Over Current and Over Temperature Protection
5μA Quiescent Current in Shutdown
P-CH Design to Reduce the Operation Current
Full Industrial Temperature Range
三 应用
Notebook computers
Battery Powered Systems
Motherboards/Peripheral Cards
Telecom/Networking Cards
Industrial Applications
Set To p Boxes
Wireless Infrastructure
Medical Equipment
四 封装
五 应用电路图
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- Dual 1A 1.5MHz同步降压转换器--AT7172
- The AT7172 is a dual high-efficiency Pulse-Width Modulated(PWM) step-down DC-DC converter. It is capable of delivering 1A output current over a wide input voltage range from 2.6V to 5.5V, the AT7172 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and other handheld devices.
- 3A降压转换调节器--AT2596
- The AT2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator capable of driving a 3A load with excellent line and load regulation. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation,and a fixed-frequency oscillator. A standard series
- 150mA低噪音/ 高PSRR双ldo监管器--AT2261
- The AT2261 series are dual voltage regulator ICs with high output voltage accuracy, low supply current, low dropout, and high ripple rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, short circuit protection and a chip enable circuit.These ICs perform with low dropo
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