Features: • 1.5A minimum guaranteed output current
• 500mV maximum dropout voltage over temperature
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
• Stable with ceramic or tantalum capacitor
• Wide input voltage range:
VIN: 2.25V to 6.0V
• +1.0% initial output tolerance
• Fixed and adjustable output voltages
MIC37150-3-pin fixed voltages
MIC37151-5-pin fixed voltages
MIC37152-5-pin adjustable voltage
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Thermal shutdown and current limit protection
• Reverse-leakage protection
• Low profile S-Pak 3 or 5 pin packagesApplication• LDO linear regulator for low-voltage digital IC
• PC add-in cards
• High efficiency linear power supplies
• SMPS post regulator
• Battery chargerPinout
SpecificationsSupply Voltage (VIN) .................................................... 6.5V
Enable Input Voltage (VEN) .......................................... 6.5V
Power Dissipation ................................... Internally Limited
Junction Temperature ........................40 TJ +125
Storage Temperature .........................65 TJ +150
Lead Temperature (soldering, 5 sec.) ....................... 260
ESD, Note 3
Note 1. Exceeding the absolute maximum ratings may damage the device.
Note 3. Device is ESD sensitive. Handling precautions recommended.DescriptionThe Micrel MIC37150/51/52 is a 1.5A low-dropout linear voltage regulator that provides a low voltage, high current output with a minimum of external components. It offers high precision, ultra-low dropout (500mV over temperature), and low ground current.
The MIC37150/51/52 operates from an input of 2.25V to 6.0V. It is designed to drive digital circuits requiring low voltage at high currents (i.e., PLDs, DSPs, microcontrollers,etc.). It is available in fixed and adjustable output voltages. Fixed voltages of MIC37150/51/52 include 1.5V, 1.65V, 1.8V, 2.5V and 3.3V. The adjustable version is capable of supplying output voltages
from 1.24V to 5.5V.
Features of the MIC37150/51/52 LDO include thermal and current limit protection, and reverse current and reverse battery protection. Logic enable and error flag pins are available.
Junction temperature range of the MIC37150/51/52 is from 40 to 125.
For applications requiring input voltage of MIC37150/51/52 greater than 6.0V, see MIC3910x, MIC3915x, MIC3930x, and MIC3950x LDOs. Data sheets and support documentation can be found on Micrel's web site at www.micrel.com.
MIC37151 Data Sheet
