器件名称: AME5110
功能描述: 600mA / 1.2MHz PWM Buck DC-DC Converter
文件大小: 130.48KB 共13页
简 介:AME, Inc.
AME5110
n General Description
The AME5110 family of Fixed Frequency,High Efficiency, Synchronous Buck, DC-DC Converters, apply the latest innovations in Current-Mode Technology. Available in SOT25 package, these devices are typically twice as efficient as standard LDO’ s, making them well suited for most portable applications. The AME5110 is simple to use. As with standard LDO’ s,(1) Input, and (1) Output capacitor are required. The only other element is a small, low cost, 2.2H inductor. The AME5110 is availabe with fixed output voltages of 1.5V and 1.8V, or adjustable at 600mA. Using a proprietary “ Extreme Green” Technology, battery life is maximized with Frequency Foldback at light Load, and 100% duty when Vin approaches Vout.
600mA / 1.2MHz PWM Buck DC-DC Converter
n Typical Application
Fixed Voltage Version
VIN
2.2H VIN SW
VOUT
CIN 4.7 F CER
AME5110
EN GND V OUT COUT 10F CER
n Features
l High Efficiency “ Extreme Green” l 2.5V to 5.5V Input l Short Circuit Protection l Over-Temperature Shutdown l Under-Volatge Lockout l Superb Transient Response l All AME’ s Lead Free Products Meet RoHS Standards
C IN 4.7 F CER VIN VIN SW 22pF 2.2H VOUT
Adjustable Voltage Version
AME5110
EN GND VFB
R1 COUT 10 F CER
R2
n Applications
l Cellular Phones l Digital Cameras l Portable Electronics l USB Devices l MP3 Players l LDO Replacement
VOUT=VFB (R1+R2)/R2
Rev. A.03
1
AME, Inc.
AME5110
n Function Diagram
600mA / 1.2MHz PWM Buck DC-DC Converter
4 AMP OUT-SENSE ……
