Microchip MIC5377 Handleiding

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MIC5376/7/8

Features

•4-Lead 1mm x 1mm UDFN: MIC5376

•8-Lead 1.2mm x 1.2mm Thin QFN: MIC5377/8

•Low-Cost 5-Lead SC-70 Package Available

•Low Dropout Voltage: 120mV at 150mA

•Input Voltage Range: 2.5V to 5.5V

•150mA Guaranteed Output Current

•Stable with 0402 Ceramic Capacitors as Low as

1µF

•Low Quiescent Current: 29µA

•Excellent Load/Line Transient Response

•Fixed Output Voltages: MIC5376

•Adjustable Output Voltages: MIC5377/8

•Output Discharge Circuit: MIC5376/8

•High Output Accuracy

-±2% Initial Accuracy

•Thermal Shutdown and Current Limit Protection

Applications

•Mobile Phones

•Digital Cameras

•GPS, PDAs, PMP, Handhelds

•Portable Electronics

General Description

The MIC5376, MIC5377, and MIC5378 are advanced,

general purpose linear regulators that offer low dropout

in ultra-small packages. The MIC5376 provides a fixed

output voltage in a 1mm x 1mm UDFN package while

the MIC5377 and MIC5378 provide adjustable output

voltages in a 1.2mm x 1.2mm Thin QFN package.

When the MIC5376 or MIC5378 are disabled, an

internal resistive load is automatically applied to the

output to discharge the output capacitor. The

MIC5376/7/8 are capable of sourcing 150mA output

current with low dropout, making it an ideal solution for

any portable electronic application.

Ideal for battery-powered applications, the

MIC5376/7/8 offer 2% initial accuracy, low dropout

voltage (120mV at 150mA), and ground current

(typically 29µA). The MIC5376/7/8 can also be put into

a zero-off-mode current state, drawing virtually no

current when disabled.

The MIC5376 is available in lead-free (RoHS

compliant) 1mm x 1mm UDFN and SC-70-5

packages. The MIC5377/8 are available in lead-free

(RoHS compliant) 1.2mm x 1.2mm Thin QFN and

SC-70-5 packages.

The MIC5376/7/8 have an operating junction

temperature range of –40°C to 125°C.

Typical Application Circuit

VINVOUT

VBAT

GND

MIC5376-xxYMT

EN1μF1μF

V

OUT

= 2.8V

High Performance Low Dropout 150mA LDO

Product specificaties