MIC2285A
The Micrel MIC2285A is a high efficiency 8MHz PWM synchronous buck (step-down) regulator that features a LowQ® LDO standby mode that draws only 18µA of quiescent current. The MIC2285A allows an ultra-low noise, small size, and high efficiency solution for portable power applications.
In PWM mode, the MIC2285A operates with a constant frequency 8MHz PWM control. Under light load conditions, such as in system sleep or standby modes, the PWM switching operation can be disabled to reduce switching losses. In this light load LowQ® mode, the LDO maintains the output voltage and draws only 18µA of quiescent current. The LDO mode of operation saves battery life while not introducing spurious noise and high ripple as experienced with pulse skipping or bursting mode regulators.
The MIC2285A operates from 2.7V to 5.5V input and features internal power MOSFETs that can supply up to 600mA output current in PWM mode. It can operate with a maximum duty cycle of 100% for use in low-dropout conditions.
The MIC2285A is available in the 10-pin 2mm x 2mm Thin MLF® package with a junction operating range from -40°C to +125°C.
产品特性
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文档资料
| MIC2285A - 8MHz PWM Synchronous Buck Regulator with LDO Standby Mode | Data Sheets | 11/05/2015 | 546KB |
器件无铅环保信息
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|---|---|---|---|---|---|---|---|---|
| MIC2285AYMT-TR | 0.073000 | 10 | UDFN | 2x2x0.6mm | NiPdAu | e4 |  |  |
