MIC5283
120V
IN
, 150mA, Ultra-Low I
Q
, High-PSRR
Linear Regulator
General Description
The MIC5283 high-performance linear regulator offers a
very-wide input operating voltage range, up to 120V DC,
and supplies an output current of up to 150mA.
Ideal for high input voltage applications such as industrial
and telecom, the MIC5283 offers ±3% initial accuracy,
extremely high-power supply rejection ratio (75dB at
10kHz) and an ultra-low quiescent current of 8µA. The
MIC5283 is optimized for high-voltage line transients,
making it ideal for harsh environment applications.
The MIC5283 is offered in both fixed output voltage (3.3V
or 5.0V) and adjustable output voltage (1.22V to 5.5V)
options.
The MIC5283 operates over a
40°C
to +125°C
temperature range and is available in lead-free, RoHS-
®
compliant, ePad SOIC-8 and 3mm x 3mm MLF
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: 8µA
150mA guaranteed output current
Adjustable output from 1.22V to 5.5V
Stable with ceramic capacitors
Ultra-high PSRR (75dB at 10kHz)
Ultra-high line rejection (load dump)
High output accuracy:
– ±3% initial accuracy
Thermal-shutdown and current-limit protection
Thermally-efficient, 8-pin ePad SOIC package
Very low-profile 3mm x 3mm MLF package
®
Applications
Industrial applications
Remote keyless entry power supply
Telecom applications
Off-line power supplies
___________________________________________________________________________________________________________
Typical Applications
MLF and
MicroLeadFrame
are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 •
http://www.micrel.com
March 2012
M9999-030812-A
Micrel, Inc.
MIC5283
Ordering Information
Part Number
MIC5283YME
MIC5283-3.3YME
MIC5283-5.0YME
MIC5283YML
MIC5283-3.3YML
MIC5283-5.0YML
Output Voltage
Adjustable
3.3V
5.0V
Adjustable
3.3V
5.0V
Top Mark
5283YME
5283-33YME
5283-50YME
A83
8S3
583
Temperature Range
–40C to
125C
–40C to
125C
–40C to
125C
–40C to
125C
–40C to
125C
–40C to
125C
Package
8-Pin ePad SOIC
8-Pin ePad SOIC
8-Pin ePad SOIC
3mmx3mm MLF
®
-8L
3mmx3mm MLF
®
-8L
3mmx3mm MLF -8L
®
Lead Finish
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pin Configuration
8-Pin ePAD SOIC
MIC5283-x.xYME
Fixed Voltage Output
(TOP VIEW)
3mm x 3mm MLF
®
-8L
MIC5283-x.xYML
Fixed Voltage Output
(TOP VIEW)
8-Pin ePAD SOIC
MIC5283YME
Adjustable Voltage Output
(TOP VIEW)
3mm x 3mm MLF
®
-8L
MIC5283YML
Adjustable Voltage Output
(TOP VIEW)
March 2012
2
M9999-030812-A
Micrel, Inc.
MIC5283
Pin Description
Pin Number
Adjustable
Output
1
2, 3, 7
4
5
6
—
8
EP
Fixed Output
1
2, 3, 7
4
5
—
6
8
EP
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 Dissipation. Connect EP to GND.
March 2012
3
M9999-030812-A
Micrel, Inc.
MIC5283
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
ESD Ratings
(4)
HBM ......................................................................... 2kV
MM .........................................................................200V
Operating Ratings
(2)
V
IN
................................................................. +6V to +120V
V
OUT
Adjust Range ..................................... +1.22V to +5.5V
Junction Temperature ......................... –40°C
T
J
+125°C
Power Dissipation (P
D
)........................... Internally Limited
(3)
Junction Thermal Resistance (
JA
)
8-pin ePad SOIC ...............................................41°C/W
3mm x 3mm MLF
®
-8..........................................60°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
Quiescent Supply Current
Output Voltage
Output Voltage Accuracy
Line Regulation
(6)
Condition
Min.
6
Typ.
Max.
120
Units
V
µA
%
%
%/V
I
OUT
= 0
Variation from nominal V
OUT
100µA
≤
I
OUT
≤
150mA
10V
≤
V
IN
≤
120V
-3
-5
-0.5
1.183
1.159
8
14
+3
+5
0.04
1.220
1.220
3.2
+0.5
1.256
1.281
Feedback Input (Adjustable)
FB Voltage
FB Current
Current Limit
Current Limit
Ripple Rejection
100Hz
≤
f
≤
1kHz
Power Supply Rejection Ratio
Power Dropout Voltage
Dropout Voltage
Thermal Protection
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
Notes:
1.
2.
3.
4.
5.
6.
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.
Line regulation is a percentage of V
OUT
.
100µA
≤
I
OUT
≤
150mA
V
FB
= 1.22V
V
OUT
= 0V
V
nA
180
300
70
75
65
1.8
155
15
500
mA
dB
dB
dB
I
OUT
= 50mA
1kHz < f
≤
30kHz
30kHz < f
≤
100kHz
I
OUT
= 150mA
T
J
rising
2.8
V
C
C
March 2012
4
M9999-030812-A
Micrel, Inc.
MIC5283
Typical Characteristics
March 2012
5
M9999-030812-A
嵌入式系统
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