MIC5282

Linear Regulator

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

February 12, 2014

Revision 1.1

General Description

The MIC5282 high-performance linear regulator offers a

very-wide input operating voltage range, up to 120V DC,

and supplies an output current of up to 50mA.

Ideal for high input voltage applications such as industrial

and telecom, the MIC5282 offers ±3% initial accuracy,

extremely high-power supply rejection ratio (80dB at

10kHz) and ultra-low quiescent current of 6µA. The

MIC5282 is optimized for high-voltage line transients,

making it ideal for harsh environment applications.

The MIC5282 is offered in both fixed output voltage

(3.3V/5.0V) and adjustable output voltage (1.27V to 5.5V)

options.

The

MIC5282

operates

over

a

−40°C to +125°C

temperature range and is available in lead-free, RoHS-

compliant, 8-pin ePad MSOP and 8-pin MSOP packages.

Data sheet and support documentation are found on the

Micrel website: www.micrel.com.

Features

• Wide input voltage range: 6V to 120V DC

• Ultra-low quiescent current: 6µA

• 50mA guaranteed output current

• Adjustable output from 1.27V to 5.5V

• Withstands up to +120V DC at the input

• Stable with ceramic capacitors

• Ultra-high PSRR (80dB at 10kHz)

• Ultra-high line rejection (load dump)

• High output accuracy:

– ±3% initial accuracy

• Thermal-shutdown and current-limit protection

• Thermally-efficient, 8-pin MSOP and 8-pin ePad MSOP

packages

Applications

• Industrial

• Remote keyless entry power supply

• Telecom

• Off-line power supplies

___________________________________________________________________________________________________________

Typical Applications

Quiescent Supply Current

vs. Input Voltage

0

2

4

6

8

10

12

0

20

40

60

80

100

120

INPUT VOLTAGE (V)