MAQ5281 View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
MAQ5281 Datasheet PDF : 16 Pages
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MAQ5281
120VIN, 25mA, Ultra-Low IQ, High-PSRR
Linear Regulator
Automotive
General Description
Features
The MAQ5281 high-performance linear regulator offers a
very-wide input operating voltage range, up to 120V DC,
and supplies an output current of up to 25mA.
Ideal for high input voltage applications such as
automotive, industrial and telecom, the MAQ5281 offers
±3% initial accuracy, extremely high-power supply
rejection ratio (>90db) and ultra-low quiescent current of
6µA. The MAQ5281 is optimized for high-voltage line
transients, making it ideal for harsh environment
applications.
The MAQ5281 is offered in both fixed output voltage
(3.3V/5.0V) and adjustable output voltage (1.27V to 5.5V)
options.
The MAQ5281 operates over a −40ºC to +125ºC
temperature range and is available in lead-free, RoHS-
compliant, 8-pin ePad MSOP package. This part is also
AEC-Q100 qualified for automotive applications.
Data sheet and support documentation are found on the
Micrel website: www.micrel.com.
• AEC-Q100 qualified
• Wide input voltage range: 6V to 120V DC
• Ultra-low quiescent current: 6µA (typ)
• 25mA 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 >90dB
• Ultra-high line transient rejection (load dump)
• High output accuracy:
– ±3% initial accuracy
• Thermal-shutdown and current-limit protection
• Thermally-efficient, 8-pin ePad MSOP package
Applications
• Automotive
• Remote keyless entry power supply
• Telecom applications
___________________________________________________________________________________________________________
Typical Applications
Quiescent Supply Current
vs. Input Voltage
12
11
10
9
8
7
6
5
4
3
2
VOUT = 5V
1
IOUT = 0
0
0
20
40
60
80
100 120
INPUT VOLTAGE (V)
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 2, 2014
Revision 2.0
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