MIC5256

Features:

• Input voltage range:2.7V to 6.0V
• Thin SOT package:1mm height
• Error flag indicates fault condition
• Stable with ceramic output capacitor
• Ultralow dropout:135mV @ 150mA
• High output accuracy: 1.0% initial accuracy 2.0% over temperature
• Low quiescent current:90 µ A
• Tight load and line regulation
• Thermal shutdown and current limit protection
• "Zero "  off-mode current
• TTL logic-controlled enable input


Application

• Cellular phones and pagers
• Cellular accesories
• Battery-powered equipment
• Laptop, notebook, and palmtop computers
• Consumer/personal electronics


Pinout




Specifications

Supply Input Voltage (V IN )...........................................0V to +7V
Enable Input Voltage (V EN )..........................................0V to +7V
Power Dissipation (P D )........................Internally Limited,  Note 3
Junction Temperature (T J )........................ 40 ° C to +125 °C
Storage Temperature................................ 65 ° C to +150 ° C
Lead Temperature (soldering, 5 sec.).......................260 ° C ESD,
Note 4...................................................................................... 2kV


Description

The MIC5256 is an efficient, precise CMOS voltage regulator. It offers better than 1% initial accuracy, extremely lowdropout voltage (typically 135mV at150mA) and low ground current (typically 90 µ A) over load. The MIC5256 features an error flag that indicates an output fault condition such as overcurrent, thermal shutdown and dropout.

Designed specifically for handheld and battery-powered de- vices, the MIC5256 provides a TTL-logic-compatible enable pin. When disabled, power consumption drops nearly to zero. The MIC5256 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices.

Key features of MIC5256 include current limit, thermal shutdown, faster transient response, and an active clamp to speed up device turnoff. Available in the IttyBitty™ SOT-23-5 package and the new Thin SOT-23-5, which offers the same footprint as the standard IttyBitty™ SOT-23-5, but only 1mm tall. The MIC5256 offers a range of output voltages.