MIC5308中文资料

MIC5308

Low VIN/VOUT 150mA High PSRR ULDO with Ultra-Low IQ

General Description

The MIC5308 is a high performance, µCap low dropout regulator, offering ultra-low operating current while maintaining very fast transient response. The MIC5308 can source up to 150mA of output current and can regulate down from a low input supply voltage to increase system efficiency.

Ideal for battery operated applications; the MIC5308 offers extremely low dropout voltage 45mV typically @ 150mA, and low ground current at all load conditions (typically 23µA). The MIC5308 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. The MIC5308 is available in fixed output voltages in the tiny 6-pin 1.6mm x 1.6mm thin MLF® leadless package as well as the 6-pin TSOT-23 for cost sensitive applications. Data sheets and support documentation can be found on Micrel’s web site at: doc.xuehai.net.

Features

Input voltage range: 1.6V to 5.5V Guaranteed 150mA over temperature

Ultra Low dropout voltage of 45mV at 150mA High PSRR, up to 90dB @ 1kHz Output Voltage range: 0.8V to 2.0V

Very low ground current – 23µA under full load Bias supply voltage range: 2.5V to 5.5V Stable with 1µF ceramic output capacitor

150mA maximum output current at 1.6V input voltage Very fast transient response – ideal for digital loads Thermal shutdown and current limit protection Tiny 6-pin 1.6mm x 1.6mm Thin MLF® package Cost effective 6-pin TSOT-23 package

Applications

Mobile Phones PDAs GPS Receivers Portable Electronics

___________________________________________________________________________________________________________

Typical Application

MIC5308

Li-Ion2.7V to 4.2V

ULDO is a trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 doc.xuehai.net

第1页下一页