LP2951CM-5

Features:

• Guaranteed 150mA current
• Adjustable output voltage - 1.24V to 29V
• Accurate 5V or 3.3V output @ 100mA
• Low dropout voltage - 350-400mV @ 100mA
• Regulator or reference functions
• Direct replacement for LP2951C, MIC2951-03, AS2951C


Application

• Microcontroller supplies
• Linear regulators
• Adjustable Supplies
• Switching power supplies - post-regulation
• Portable modems
• Battery powered systems
• Cellular telephones
•Voltage references


Pinout




Specifications

Parameter	Symbol	Maximum	Units
Supply Voltage	VIN	-0.3 to 30	V
Shutdown Input Voltage		-0.3 to 30	V
Error Comp. Output Voltage		-0.3 to 30	V
Power Dissipation	PD	Internally Limited	W
Thermal Resistance Junction to Ambient	JA	175	/W
Operating Junction Temperature Range	TJ	-40 to 125
Storage Temperature Range	TSTG	-65 to 150
Lead Temperature (Soldering) 5 Sec	TLEAD	260

Description

·The LP2951CM-5 series of low power voltage regulators have low quiescent current and low dropout voltage.

·The quiescent current increases minimally during dropout conditions thereby extending battery life.

·Available in the 8 lead SOIC package, the LP2951CM-5 series includes features such as shutdown and low output voltage detect (typically due to low battery conditions).

·This function may also be used as a power on reset function when triggered by CMOS or TTL inputs.

·The circuit can be used as a fixed voltage 5 volt (3.3 volt for LP2951CM-3.3) regulator or adjusted between 1.24 volts and 29 volts using external resistor pairs.