Features: • Input voltage range: 2.7V to 6.0V
• Dual, independent 150mA LDOs
• Error flags indicate fault condition
• Stable with ceramic output capacitor
• Ultra-low dropout: 135mV @ 150mA
• High output accuracy:
1.0% initial accuracy
2.0% over temperature
• Low quiescent current: 90µA each LDO
• Tight load and line regulation
• Thermal shutdown and current limit protection
• "Zero" off-mode current
• TTL logic-controlled enable input
• MSOP-10 packageApplication• Cellular phones and pagers
• Cellular accessories
• Battery-powered equipment
• Laptop, notebook, and palmtop computers
• Consumer/personal electronicsPinout
SpecificationsSupply Input Voltage (VIN) ...................................... 0V to +7V
Enable Input Voltage (VEN) ..................................... 0V to +7V
Power Dissipation (PD) ................... Internally Limited, Note 3
Junction Temperature (TJ) ....................... 40°C to +125°C
Storage Temperature ............................... 65°C to +150°C
Lead Temperature (soldering, 5 sec.) .......................... 260°C
ESD, Note 4 ....................................................................... 2kV
Input Voltage (VIN) ............................................. +2.7V to +6V
Enable Input Voltage (VEN) ...................................... 0V to VIN
Junction Temperature (TJ) ......................... 40°C to +125°C
Thermal Resistance
MSOP-10 (JA) ...........................................................200°C/W
Description
The MIC5254 is an efficient, precise, dual CMOS voltage regulator. It offers better than 1% initial accuracy, extremely low dropout voltage (typically 135mV at 150mA) and low ground current (typically 90µA) over load. The MIC5254 features two independent LDOs with error flags that indicate an output fault condition such as overcurrent, thermal shutdown and dropout.
Designed specifically for handheld and battery-powered devices, the MIC5254 provides a TTL-logic-compatible enable pin. When disabled, power consumption drops nearly to zero. The MIC5254 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in handheld wireless devices. Key features include current limit, thermal shutdown, faster transient response, and an active clamp to speed up device turnoff. The MIC5254 is available in the MSOP-10 package and is rated over a 40°C to +125°C junction temperature range.
MIC5254 Data Sheet
