MIC5282
120V
IN
, 50mA, Ultra-Low I
Q
, High-PSRR
Linear Regulator
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
12
QUIESCENT CURRENT (µA)
10
8
V
OUT
= 5V
I
OUT
= 0
6
4
2
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
February 12, 2014
Revision 1.1
Micrel, Inc.
MIC5282
Ordering Information
Part Number
MIC5282YMME
MIC5282-3.3YMME
MIC5282-5.0YMME
MIC5282YMM
MIC5282-3.3YMM
MIC5282-5.0YMM
Output Voltage
Adjustable
3.3V
5.0V
Adjustable
3.3V
5.0V
Top Mark
A882
882S
5882
−
−
−
Temperature Range
–40°C to
+125°C
–40°C to
+125°C
–40°C to
+125°C
–40°C to
+125°C
–40°C to
+125°C
–40°C to
+125°C
Package
8-Pin ePad MSOP
8-Pin ePad MSOP
8-Pin ePad MSOP
8-Pin MSOP
8-Pin MSOP
8-Pin MSOP
Lead Finish
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pin Configuration
8-Pin ePAD MSOP
MIC5282-x.xYMME
(TOP VIEW)
8-Pin MSOP
MIC5282-x.xYMM
(TOP VIEW)
8-Pin ePAD MSOP
MIC5282YMME
(TOP VIEW)
8-Pin MSOP
MIC5282YMM
(TOP VIEW)
February 12, 2014
2
Revision 1.1
Micrel, Inc.
MIC5282
Pin Description
MIC5282YMME
1
2, 3, 7
4
5
6
−
8
EP
Pin
MIC5282-x.xYMME
MIC5282YMM
1
2, 3, 7
4
5
−
6
8
EP
1
2, 3, 7
4
5
6
−
8
−
MIC5282-x.xYMM
1
2, 3, 7
4
5
−
6
8
−
Name
VIN
NC
CPSRR
GND
FB
SNS
VOUT
EP
Function
Supply Voltage Input. Connect 1µF
capacitor from VIN to GND.
Not internally connected. Connect
NC to GND or leave unconnected.
Bypass Capacitor Connection.
Connect 0.1µF capacitor from
CPSRR to GND.
Ground.
Feedback Connection. For external
resistor divider to set V
OUT
.
Sense input. Connect SNS to
VOUT.
Regulator Output. Connect 10µF
capacitor from VOUT to GND.
Exposed Pad (ePad) for Thermal
Relief. Connect EP to GND.
February 12, 2014
3
Revision 1.1
Micrel, Inc.
MIC5282
Absolute Maximum Ratings
(1)
V
IN
to GND ................................................... –0.3V to +125V
V
CPSRR
to GND ..................................................–0.3 to +14V
V
FB
, V
SNS
, V
OUT
to GND ................................... –0.3V to +6V
Lead Temperature (soldering, 10s) .......................... +260°C
Junction Temperature ......................... –40°C
≤
T
J
≤
+125°C
Storage Temperature .........................–65°C
≤
T
A
≤
+150°C
(4)
ESD Ratings
HBM ......................................................................... 2kV
MM ......................................................................... 200V
Operating Ratings
(2)
V
IN
................................................................. +6V to +120V
V
OUT
Adjust Range ..................................... +1.27V to +5.5V
Junction Temperature ......................... –40°C
≤
T
J
≤
+125°C
(3)
Power Dissipation (P
D
) ........................... Internally Limited
Junction Thermal Resistance (θ
JA
)
8-pin ePad MSOP .............................................. 64°C/W
8-pin MSOP ..................................................... 160°C/W
Electrical Characteristics
(5)
V
IN
= 12V, C
IN
= 1.0µF, C
PSRR
= 0.1µF, C
OUT
= 10µF, V
OUT
= 5.0V or 3.3V, I
OUT
= 100µA, T
A
= 25°C,
bold
values indicate
–40°C
≤
T
J
≤
+125°C, unless noted.
Parameter
Power Supply Input
Input Voltage Range
Output Voltage
Adjustable
Output Voltage
Fixed 3.3V
Fixed 5.0V
Output Voltage Accuracy
Variation from nominal V
OUT
ePad
Load Regulation
Line Regulation
(8)
(6)
(7)
Condition
Min.
6
Typ.
Max.
120
Units
V
µA
Quiescent Supply Current
I
OUT
= 0
1.27
3.2
3.13
4.85
4.75
-3
-5
-1.0
-1.2
-0.5
1.232
1.206
V
FB
= 1.27V
V
OUT
= 0V
100Hz ≤ f ≤ 1kHz
60
6
11
5.5
3.3
3.3
5.0
5.0
3.4
3.47
5.15
5.25
+3
+5
%
%
%
V
0.5
0.6
0.04
1.270
1.270
3.2
125
65
75
80
90
+1.0
+1.2
+0.5
1.308
1.333
%/V
I
OUT
= 100µA to 50mA
non-ePad
V
IN
= 10V to 120V
Feedback Input (Adjustable)
FB Voltage
FB Current
Current Limit
Current Limit
Ripple Rejection
dB
dB
dB
dB
1kHz ≤ f ≤ 5kHz
5kHz ≤ f ≤ 40kHz
40kHz ≤ f ≤ 1MHz
260
mA
V
nA
Power Supply Rejection Ratio
(9)
February 12, 2014
4
Revision 1.1
Micrel, Inc.
MIC5282
Electrical Characteristics
(5)
(Continued)
V
IN
= 12V, C
IN
= 1.0µF, C
PSRR
= 0.1µF, C
OUT
= 10µF, V
OUT
= 5.0V or 3.3V, I
OUT
= 100µA, T
A
= 25°C,
bold
values indicate
–40°C
≤
T
J
≤
+125°C, unless noted.
Parameter
Power Dropout Voltage
Dropout Voltage
Thermal Protection
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Exceeding an absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
The maximum allowable power dissipation at any T
A
(ambient temperature) is P
D(max)
= (T
J(max)
– T
A
) /
θ
JA
. Exceeding the maximum allowable power
dissipation results in excessive die temperature, and causes the regulator to enter thermal shutdown.
Devices are ESD sensitive; use proper handling precautions.
Specifications are for packaged products only.
Assure that V
IN
≥
(V
OUT
+ 3V) and V
IN
≥
6V.
Quiescent current is specified for the adjustable option. The fixed options will add approximately 1µA due to the internal feedback resistors.
Line regulation is a percentage of V
OUT
.
See Typical Characteristics Curve on Pg. 8
Condition
I
OUT
= 50mA
T
J
rising
Min.
Typ.
2
157
15
Max.
3
Units
V
°C
°C
February 12, 2014
5
Revision 1.1
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
