MIC5206

Features:

• Error flag indicates undervoltage fault
• High output voltage accuracy
• Guaranteed 150mA output
• Ultra-low-noise output (8-lead versions)
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Reversed-battery protection
• "Zero " off-mode current
• Logic-controlled electronic enable


Application

• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery-powered equipment
• PCMCIA V CC  and V PP  regulation/switching
• Consumer/personal electronics
• SMPS post-regulator/dc-to-dc modules
• High-efficiency linear power supplies


Pinout




Specifications

Supply Input Voltage (V IN )................................. 20V to +20V
Enable Input Voltage (V EN)................................  20V to +20V
Power Dissipation (P D ).......................Internally Limited,  Note 3
Junction Temperature (T J )....................... 40 ° C to +125° C
Lead Temperature (Soldering, 5 sec.)...............................260 °C


Description

The MIC5206 is an efficient linear voltage regulator with very low dropout voltage (typically 17mV at light loads and 165mV at 150mA), and very low ground current (600 µ A at 100mA output), with better than 1% initial accuracy. MIC5206 has a logic compatible enable/shutdown control input and an internal undervoltage monitor.

Designed especially for hand-held, battery-powered devices, the MIC5206 can be switched by a CMOS or TTL compatible logic signal.  When disabled, power consumption drops nearly to zero.  Dropout ground current is minimized to prolong battery life.

Key features of MIC5206 include an undervoltage monitor with an error flag output, a reference bypass pin to improve its already lownoise performance (8-lead versions only), reversed-battery protection, current limiting, and overtemperature shutdown. The MIC5206 is available in several fixed voltages in a tiny SOT-23-5 package. It features a pinout, similar to the LP2980, but has significantly better performance. Fixed and adjust- able output voltage versions, featuring the reference bypass option, are available in the 8-lead Micrel Mini 8™ 8-lead MSOP (micro small-outline package).

For low-dropout regulators that are stable with ceramic output capacitors, see the  µ Cap MIC5245/6/7 family.