Microchip MIC5219 Bedienungsanleitung

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DS20006021A-page 1 2018 Microchip Technology Inc.

MIC5219

Features

•500mA Output Current Capability

-SOT23-5 Package - 500mA Peak

-2mm x 2mm x 0.9mm VDFN Package -

500mA Continuous

-2mm x 2mm x 0.6mm Thin DFN Package -

500mA Continuous

-MSOP-8 Package - 500mA Continuous

•Low 500mV Maximum Dropout Voltage at Full

Load

•Extremely Tight Load and Line Regulation

•Tiny SOT-23-5 and Power MSOP-8 Package

•Ultra-Low Noise Output

•Low Temperature Coefficient

•Current and Thermal Limiting

•Reversed-Battery Protection

•CMOS/TTL-Compatible Enable/Shutdown Control

•Near-Zero Shutdown Current

Applications

•Laptop, Notebook, and Palmtop Computers

•Cellular Telephones and Battery-Powered

Equipment

•Consumer and Personal Electronics

•PC Card V

CC

and V

PP

Regulation and Switching

•SMPS Post-Regulator/DC-to-DC Modules

•High-Efficiency Linear Power Supplies

General Description

The MIC5219 is an efficient linear voltage regulator

with high peak output current capability, very low

dropout voltage, and better than 1% output voltage

accuracy. Dropout is typically 10mV at light loads and

less than 500mV at full load.

The MIC5219 is designed to provide a peak output

current for start-up conditions where higher inrush

current is demanded. It features a 500mA peak output

rating. Continuous output current is limited only by

package and layout.

The MIC5219 can be enabled or shut down by a

CMOS- or TTL-compatible signal. When disabled,

power consumption drops nearly to zero. Dropout

ground current is minimized to help prolong battery life.

Other key features include reversed-battery protection,

current limiting, overtemperature shutdown, and low

noise performance with an ultra-low noise option.

The MIC5219 is available in adjustable or fixed output

voltages in the space-saving 6-pin (2mm × 2mm)

VDFN, 6-pin (2mm × 2mm) Thin DFN, SOT23-5, and

8-pin power MSOP packages. For higher power

requirements see the MIC5209 or MIC5237.

500mA Peak Output LDO Regulator

Produktspezifikationen