 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
AME5251 Datasheet(PDF) 1 Page - Analog Microelectronics |
|
||||||||||||||||||||||||||||||
AME5251 Datasheet(HTML) 1 Page - Analog Microelectronics |
|
|
1 / 19 page  AME 1 AME5251 Rev.A.05 Dual 1A, 1.5MHz Synchronous Step-Down Converter The AME5251 is a high efficiency monolithic synchro- nous dual buck regulator using a constant frequency, cur- rent mode architecture. Capable of delivering 1A output cur-rent each channel over a wide input voltage range from 2.5V to 5.5V, the AME5251 is ideally suited for single Li- Ion battery powered applications. 100% duty cycle pro- vides low dropout operation, extending battery life in por- table systems. Under light load conditions, the AME5251 operates in a power saving mode that consumes just around 20 µA of supply current, maximizing battery life in portable applications. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The AME5251 is available in small DFN-12A packages. Other features include soft start, lower internal refer- ence voltage with 2% accuracy, over temperature protec- tion, and over current protection. n General Description n Features n Applications n Typical Application C2 L1 ON OFF R1 C1 COUT1 VOUT1 VIN1 CIN2 R2 R3 VOUT2 R4 CIN1 VIN1 COUT2 L2 IN2 SW2 GND FB1 NC1 EN1 EN2 NC2 FB2 GND SW1 IN1 AME5251 ON OFF l Cellular Telephones l Personal Information Appliances l Wireless and DSL Modems l MPS Players l Portable Instruments l High Efficiency: Up to 95% l Very Low 20 µA Quiescent Current l High Efficiency in Light Load Condition l 2.5V to 5.5V Input Range l Adjustable Output From 0.6V to V IN l Adjustable Output Voltage l 1A Output Current Per Channel l Low Dropout Operation: 100% Duty Cycle l No Schottky Diode Required l 1.5MHz Constant Frequency PWM Opera tion l Small DFN-12A Packages l Green Products Meet RoHS Standard |
Similar Part No. - AME5251 |
|
Similar Description - AME5251 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
