Micrel MIC2253
The MIC2253 is a high power density 1MHz PWM DC/DC boost regulator. The 3.5A minimum switch current limit combined with a 1MHz switching frequency allows the MIC2253 to use smaller inductors and deliver high power in a tiny solution size. The 2.5V to 10V input voltage range of MIC2253 allows direct operation from 1 and 2 cell Li-ion as well as 3 to 4 cell NiCad, NiMH, Alkaline or lithium batteries.| Part No. | MIC2253 |
|---|---|
| Datasheet | MIC2253 Download |
| Manufacturer |  Micrel |
| Description | 3.5A 1MHz High Efficiency Boost Regulator |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Maximum battery life is assured with a low 0.1µA shutdown current. The MIC2253 is available in a low profile 12-pin 3mm x 3mm MLF© package. To prevent a high inrush current, a minimum 1ms soft-start period is set by default and the MIC2253 has the ability to extend the soft-start period with an external capacitor. Datasheet and support documentation can be found on Micrel’s web site at:FEATURES
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● 3.5A minimum switch current 1.245V ± 3% feedback voltage 2.5V to 10V input voltage Output over-voltage protection (OVP) Externally programmable soft-start Output voltage up to 30V (max) Fixed 1MHz operation <1% line regulation 0.1µA shutdown current Over temperature protection Under-voltage lockout (UVLO) 12-pin 3mm x 3mm leadless MLF® package –40°C to +125°C junction temperature range
APPLICATIONS
● Mobile handsets● Portable media/MP3 players
● Portable navigation devices (GPS)
● WiFi/WiMax/WiBro modules
● Digital Cameras
● Wireless LAN cards
● US...
