MIC5271

Input Voltage (VIN) ...................................... 20V to +0.3V
Enable Voltage (VEN) .................................... 20V to +20V
Power Dissipation (PD) ............................ Internally Limited
Junction Temperature (TJ) ....................... 40°C to +125°C
Lead Temperature (soldering, 5 sec.) ....................... 260°C
Storage Temperature (TS) ....................... 65°C to +150°C
ESD Rating, Note 3

The MIC5271 is a Cap 100mA negative regulator in a SOT-23-5 package. With better than 2% initial accuracy, this regulator provides a very accurate supply voltage for applications that require a negative rail. The MIC5271 sinks 100mA of output current at very low dropout voltage (600mV maximum at 100mA of output current).

The Cap regulator design is optimized to work with lowvalue, low-cost ceramic capacitors. The output typically requires only a 1F capacitance for stability.

Designed for applications where small packaging and efficiency are critical, the MIC5271 combines LDO design expertise with IttyBitty packaging to improve performance and reduce power dissipation. Ground current is optimized to help improve battery life in portable applications. The MIC5271 also includes a TTL-compatible enable pin, allowing the user to put the part into a zero-current off-mode.

The MIC5271 is available in the SOT-23-5 package for space saving applications and it is available with an adjustable output.

Data sheets and support documentation of MIC5271 can be found on Micrel's web site at www.micrel.com.