Micrel, Inc.
MAQ5281
Absolute Maximum Ratings(1)
VIN to GND................................................... –0.3V to +125V
VCPSRR to GND..................................................–0.3 to +14V
VFB, VSNS, VOUT to GND ................................... –0.3V to +6V
Power Dissipation (PD) ........................... Internally Limited(3)
Lead Temperature (soldering, 10s).......................... +260°C
Junction Temperature ......................... –40°C ≤ TJ ≤ +125°C
Storage Temperature .........................–65°C ≤ TA ≤ +150°C
ESD Ratings(4)
HBM ......................................................................... 2kV
MM ......................................................................... 200V
Operating Ratings(2)
VIN ................................................................. +6V to +120V
VOUT Adjust Range ..................................... +1.27V to +5.5V
Junction Temperature ......................... –40°C ≤ TJ ≤ +125°C
Junction Thermal Resistance (θJA)
8-pin ePad MSOP..............................................64°C/W
Electrical Characteristics(5)
VIN = 12V, CIN = 1.0µF, CPSRR = 0.1µF, COUT = 10µF, IOUT = 100µA, TA = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.
Parameter
Condition
Min. Typ. Max. Units
Power Supply Input
Input Voltage Range(6)
Quiescent Supply Current(7)
Output Voltage
IOUT = 0
6
120
V
6
11
µA
Adjustable
1.27
5.5
Output Voltage
Fixed 3.3V
3.2
3.3
3.4
3.13 3.3
3.47
V
Fixed 5.0V
4.85 5.0
5.15
4.75 5.0
5.25
Output Voltage Accuracy
Variation from nominal VOUT
−3
+3
%
−5
+5
%
Load Regulation
Line Regulation(8)
IOUT = 100µA to 25mA
VIN = 10V to 120V
−1.0 0.2
+1.0
%
−0.5 0.04 +0.5 %/V
Feedback Input (Adjustable)
FB Voltage
1.232 1.270 1.308
V
1.206 1.270 1.333
FB Current
Current Limit
VFB = 1.27V
3.2
nA
Current Limit
Ripple Rejection
VOUT = 0V
30
65
130
mA
Power Supply Rejection Ratio
f = 20kHz to 2MHz
90
dB
October 2, 2014
3
Revision 2.0