Electronic Components Datasheet Search |
|
MIC23051-CGYML Datasheet(PDF) 1 Page - Micrel Semiconductor |
|
MIC23051-CGYML Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 13 page MIC23051 4MHz PWM Buck Regulator with HyperLight Load™ and Voltage Scaling HyperLight Load is a trademark of Micrel, Inc. MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Protected by US Patent No. 7064531 Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( 408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com July 2009 M9999-070809-F General Description The Micrel MIC23051 is a high efficiency 600mA PWM synchronous buck (step-down) regulator featuring HyperLight Load™, a patented switching scheme that offers best in class light load efficiency and transient performance while providing very small external components and low output ripple at all loads. The MIC23051 has an output voltage scaling feature that can toggles between two different voltage levels. The MIC23051 also has a very low typical quiescent current draw of 20µA and can achieve over 85% efficiency even at 1mA. The device allows operation with a tiny inductor ranging from 0.47µH to 2.2µH and uses a small output capacitor that enables a sub-1mm height solution. In contrast to traditional light load schemes HyperLight Load™ architecture does not need to trade off control speed to obtain low standby currents and in doing so the device only needs a small output capacitor to absorb the load transient as the powered device goes from light load to full load. At higher loads the MIC23051 provides a constant switching frequency of greater than 4MHz while providing peak efficiencies greater than 93%. The MIC23051 is available in fixed output voltage options from 0.72V to 3.3V eliminating external feedback components. The MIC23051 is available in an 8-pin 2mm x 2mm MLF ® with a junction operating range from –40°C to +125 °C. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features • Input voltage: 2.7V to 5.5V HyperLight Load™ • 600mA output current • Fixed output voltage from 0.72V to 3.3V • Output voltage scaling option • Ultra fast transient response • 20µA typical quiescent current • 4MHz in CCM PWM operation in normal mode • 0.47µH to 2.2µH inductor • Low voltage output ripple – 25mVpp in HyperLight Load mode – 3mV output voltage ripple in full PWM mode • >93% efficiency • ~85% at 1mA • Micropower shutdown • Available in 8-pin 2mm x 2mm MLF® • –40°C to +125°C junction temperature range Applications • Cellular phones • Digital cameras • Portable media players • Wireless LAN cards • WiFi/WiMax/WiBro modules • USB Powered Devices ____________________________________________________________________________________________________________ Typical Application 50 60 70 80 90 100 1 10 100 1000 OUTPUT CURRENT (mA) Efficiency VOUT = 1.8V VOUT = 1.8V L = 1µH VIN = 3.3V VIN = 2.7V VIN = 3.6V |
Similar Part No. - MIC23051-CGYML |
|
Similar Description - MIC23051-CGYML |
|
|
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 |