Micrel MIC5282YMM Ultra-low iq, high-psrr linear regulator Datasheet

MIC5282
120VIN, 50mA, Ultra-Low IQ, High-PSRR
Linear Regulator
General Description
Features
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, RoHScompliant, 8-pin ePad MSOP and 8-pin MSOP packages.
Data sheet and support documentation are found on the
Micrel website: www.micrel.com.
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
QUIESCENT CURRENT (µA)
12
VOUT = 5V
10
IOUT = 0
8
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
Output Voltage
Top Mark
Temperature Range
Package
Lead Finish
Adjustable
A882
–40°C to +125°C
8-Pin ePad MSOP
Pb-Free
MIC5282-3.3YMME
3.3V
882S
–40°C to +125°C
8-Pin ePad MSOP
Pb-Free
MIC5282-5.0YMME
5.0V
5882
–40°C to +125°C
8-Pin ePad MSOP
Pb-Free
Adjustable
−
–40°C to +125°C
8-Pin MSOP
Pb-Free
MIC5282-3.3YMM
3.3V
−
–40°C to +125°C
8-Pin MSOP
Pb-Free
MIC5282-5.0YMM
5.0V
−
–40°C to +125°C
8-Pin MSOP
Pb-Free
MIC5282YMME
MIC5282YMM
Pin Configuration
February 12, 2014
8-Pin ePAD MSOP
MIC5282-x.xYMME
8-Pin MSOP
MIC5282-x.xYMM
(TOP VIEW)
(TOP VIEW)
8-Pin ePAD MSOP
MIC5282YMME
8-Pin MSOP
MIC5282YMM
(TOP VIEW)
(TOP VIEW)
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Revision 1.1
Micrel, Inc.
MIC5282
Pin Description
MIC5282YMME
Pin
MIC5282-x.xYMME
MIC5282YMM
MIC5282-x.xYMM
Name
Function
1
1
1
1
VIN
Supply Voltage Input. Connect 1µF
capacitor from VIN to GND.
2, 3, 7
2, 3, 7
2, 3, 7
2, 3, 7
NC
Not internally connected. Connect
NC to GND or leave unconnected.
4
4
4
4
CPSRR
5
5
5
5
GND
6
−
6
−
FB
−
6
−
6
SNS
8
8
8
8
VOUT
Regulator Output. Connect 10µF
capacitor from VOUT to GND.
EP
EP
−
−
EP
Exposed Pad (ePad) for Thermal
Relief. Connect EP to GND.
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3
Bypass Capacitor Connection.
Connect 0.1µF capacitor from
CPSRR to GND.
Ground.
Feedback Connection. For external
resistor divider to set VOUT.
Sense input. Connect SNS to
VOUT.
Revision 1.1
Micrel, Inc.
MIC5282
Absolute Maximum Ratings(1)
Operating Ratings(2)
VIN to GND ................................................... –0.3V to +125V
VCPSRR to GND ..................................................–0.3 to +14V
VFB, VSNS, VOUT to GND ................................... –0.3V to +6V
Lead Temperature (soldering, 10s) .......................... +260°C
Junction Temperature ......................... –40°C ≤ TJ ≤ +125°C
Storage Temperature .........................–65°C ≤ TA ≤ +150°C
(4)
ESD Ratings
HBM ......................................................................... 2kV
MM ......................................................................... 200V
VIN ................................................................. +6V to +120V
VOUT Adjust Range ..................................... +1.27V to +5.5V
Junction Temperature ......................... –40°C ≤ TJ ≤ +125°C
(3)
Power Dissipation (PD) ........................... Internally Limited
Junction Thermal Resistance (θJA)
8-pin ePad MSOP .............................................. 64°C/W
8-pin MSOP ..................................................... 160°C/W
Electrical Characteristics(5)
VIN = 12V, CIN = 1.0µF, CPSRR = 0.1µF, COUT = 10µF, VOUT = 5.0V or 3.3V, IOUT = 100µA, TA = 25°C, bold values indicate
–40°C ≤ TJ ≤ +125°C, unless noted.
Parameter
Condition
Min.
Typ.
Max.
Units
120
V
6
11
µA
3.2
3.3
3.4
3.13
3.3
3.47
4.85
5.0
5.15
4.75
5.0
5.25
Power Supply Input
(6)
Input Voltage Range
6
(7)
Quiescent Supply Current
IOUT = 0
Output Voltage
Adjustable
1.27
Fixed 3.3V
Output Voltage
Fixed 5.0V
Output Voltage Accuracy
Variation from nominal VOUT
Load Regulation
IOUT = 100µA to 50mA
Line Regulation
(8)
5.5
V
-3
+3
%
-5
+5
%
ePad
-1.0
0.5
+1.0
non-ePad
-1.2
0.6
+1.2
-0.5
0.04
+0.5
1.232
1.270
1.308
1.206
1.270
1.333
%
VIN = 10V to 120V
%/V
Feedback Input (Adjustable)
FB Voltage
FB Current
VFB = 1.27V
3.2
V
nA
Current Limit
Current Limit
60
VOUT = 0V
125
260
mA
Ripple Rejection
Power Supply Rejection Ratio
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(9)
100Hz ≤ f ≤ 1kHz
65
dB
1kHz ≤ f ≤ 5kHz
75
dB
5kHz ≤ f ≤ 40kHz
80
dB
40kHz ≤ f ≤ 1MHz
90
dB
4
Revision 1.1
Micrel, Inc.
MIC5282
Electrical Characteristics(5) (Continued)
VIN = 12V, CIN = 1.0µF, CPSRR = 0.1µF, COUT = 10µF, VOUT = 5.0V or 3.3V, IOUT = 100µA, TA = 25°C, bold values indicate
–40°C ≤ TJ ≤ +125°C, unless noted.
Parameter
Condition
Min.
Typ.
Max.
Units
2
3
V
Power Dropout Voltage
Dropout Voltage
IOUT = 50mA
Thermal Protection
Thermal-Shutdown Temperature
TJ rising
Thermal-Shutdown Hysteresis
157
°C
15
°C
Notes:
1.
Exceeding an absolute maximum rating may damage the device.
2.
The device is not guaranteed to function outside its operating rating.
3.
The maximum allowable power dissipation at any TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable power
dissipation results in excessive die temperature, and causes the regulator to enter thermal shutdown.
4.
Devices are ESD sensitive; use proper handling precautions.
5.
Specifications are for packaged products only.
6.
Assure that VIN ≥ (VOUT + 3V) and VIN ≥ 6V.
7.
Quiescent current is specified for the adjustable option. The fixed options will add approximately 1µA due to the internal feedback resistors.
8.
Line regulation is a percentage of VOUT.
9.
See Typical Characteristics Curve on Pg. 8
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Micrel, Inc.
MIC5282
Typical Characteristics
Quiescent Supply Current
vs. Input Voltage
Quiescent Supply Current
vs. Temperature
5.15
10
5.10
8
6
4
2
0
8
6
VIN = 12V
4
VOUT = 5V
IOUT = 0mA
20
40
60
80
100
120
-25
0
50
75
100
0
125
5.05
5.00
4.95
4.90
IOUT = 5mA
5.05
5.00
4.95
4.90
4.85
4.85
40
50
-50
-25
0
OUTPUT CURRENT (mA)
25
50
75
100
2.0
1.5
1.0
0.5
0.0
125
0
10
20
30
40
50
OUTPUT CURRENT (mA)
Feedback Pin Voltage
vs. Input Voltage
4
120
VOUT = 5V
2.5
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
100
3.0
VOUT = 5V
5.10
80
60
40
Dropout Voltage
vs. Output Current
DROPOUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
VOUT = 5V
30
20
INPUT VOLTAGE (V)
VIN = 12V
VIN = 12V
Feedback Pin Current
vs. Input Voltage
1.280
20
VOUT= 5V
VOUT = 5V
FB PIN VOLTAGE (V)
IOUT= 50mA
3
2
1
FB PIN CURRENT (nA)
OUTPUT VOLTAGE (V)
25
5.15
20
4.95
Output Voltage
vs. Temperature
5.15
10
5.00
TEMPERATURE (°C)
Output Voltage
vs. Output Current
0
IOUT = 5mA
5.05
4.85
-50
INPUT VOLTAGE (V)
5.10
VOUT = 5V
4.90
2
0
0
DROPOUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
10
12
VIN = 12V
VOUT = 5V
IOUT = 0
QUIESCENT CURRENT (µA)
QUIESCENT CURRENT (µA)
12
Output Voltage
vs. Input Voltage
IOUT = 5mA
1.275
1.270
1.265
VFB = 1.27V
15
10
5
0
-50
-25
0
25
50
75
TEMPERATURE (°C)
100
125
0
1.260
0
20
40
60
80
INPUT VOLTAGE (V)
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6
100
120
0
20
40
60
80
100
120
INPUT VOLTAGE (V)
Revision 1.1
Micrel, Inc.
MIC5282
Typical Characteristics (Continued)
10
1.32
1.30
VIN = 12V
VIN = 12V
8
VOUT = 5V
1.30
IOUT = 5mA
1.29
1.28
1.27
1.26
VIN = 12V
VADJ = 1.27V
FB PIN VOLTAGE (V)
1.31
FB PIN CURRENT (nA)
FB PIN VOLTAGE (V)
Feedback Pin Voltage
vs. Output Current
Feedback Pin Current
vs. Temperature
Feedback Pin Voltage
vs. Temperature
IOUT = 0
6
4
VOUT = 5V
1.29
1.28
1.27
1.26
2
1.25
1.25
0
1.24
-50
-25
0
25
50
75
100
-50
125
-25
0
75
100
0
125
150
100
50
IOUT = 100uA
0.0005
0.0000
-0.0005
-25
0
25
50
75
100
-25
IOUT =100uA to 50mA
0.75
0.50
0.25
0
25
50
75
100
125
-50
-25
0
TEMPERATURE (°C)
TEMPERATURE (°C)
CASE TEMPERATURE (°C)
VIN = 12V
VOUT = 5V
0.3
0.2
0.1
50
75
100
125
PSRR vs. Frequency
40
50
0.5
25
TEMPERATURE (°C)
Case Temperature* (MME)
vs. Output Current
Power Dissipation
vs. Output Current
0.4
VOUT = 5V
0.00
-50
125
VIN =12V
VIN = 12V
VOUT = 5V
40
RIPPLE REJECTION (dB)
-50
50
VIN = 12V
VOUT = 5V
-0.0010
0
40
1.00
LOAD REGULATION (%)
LINE REGULATION (%/V)
VOUT = 0V
30
Load Regulation
vs. Temperature
VIN = 10V to 120V
VIN = 12V
20
OUTPUT CURRENT (mA)
0.0010
250
200
10
Line Regulation
vs. Temperature
Current Limit
vs. Temperature
CURRENT LIMIT (mA)
50
TEMPERATURE (°C)
TEMPERATURE (°C)
POWER DISSIPATION (W)
25
30
20
10
20
0
Gain (dB)
VOUT = 5.0V
IOUT = 50mA
CIN = NONE
-20
-40
CPSRR = 0.1µF
COUT =10µF
-60
-80
-100
0
0.0
0
0
10
20
30
40
OUTPUT CURRENT (mA)
50
10
20
30
40
OUTPUT CURRENT (mA)
50
-120
0.01
0.1
1
10
100
1000
FREQUENCY (kHz)
Case Temperature*: The temperature measurement was taken at the hottest point on the MIC5282 case mounted on a 2.25 square inch PCB at an
ambient temperature of 25°C; see “Thermal Measurement” section. Actual results will depend upon the size of the PCB, ambient temperature and
proximity to other heat emitting components.
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Revision 1.1
Micrel, Inc.
MIC5282
Functional Characteristics
February 12, 2014
8
Revision 1.1
Micrel, Inc.
MIC5282
Functional Characteristics (Continued)
February 12, 2014
9
Revision 1.1
Micrel, Inc.
Detailed Description
The MIC5282 voltage regulator accepts a 6V to 120V input
and has an ultra-low 6µA typical quiescent current while
offering an excellent line transient response and PSRR.
These features make it ideal for harsh, noisy
environments. All options of the device offer 50mA of
output current. The MIC5282YMM and MIC5282YMME
offer an adjustable output voltage from 1.27V to 5.5V. The
MIC5282-3.3YMME and MIC5282-3.3YMM offer fixed
3.3V outputs and the MIC5282-5.0YMME and MIC52825.0YMM offer fixed 5.0V outputs. The YMME packaged
devices feature a heat slug to more effectively remove
heat from the die.
Applications Information
Thermal Protection
MIC5282 has internal thermal shutdown to protect it from
excessive heating of the die. When the junction
temperature exceeds approximately +155°C, the output is
disabled and the device begins to cool down. The device
turns back on when the junction temperature cools by
15°C. This will result in a cycled output during continuous
thermal-overload conditions.
Current Limit
MIC5282 features output current-limit protection. The
output sustains a continuous short circuit to GND without
damage to the device, but thermal shutdown often results.
MIC5282
Output Voltage Setting
For the MIC5282YMME and MIC5282YMM, VOUT is
programmed from 1.27V to 5.5V using:
 R1

VOUT = VREF × 
+ 1
R2


where VREF = 1.27V, and R1 and R2 are shown in the
Typical Applications circuit.
Thermal Measurements
It is always wise to measure an IC’s case temperature to
make sure that it is within operating limits, but it is easy to
get erroneous results. The standard thermal couple that
comes with many voltage meters uses a large wire gauge
that behaves like a heat-sink, resulting in artificially low
case temperature measurements. Use a thermocouple of
36-gauge wire or smaller, such as the Omega (5SC-TT-K36-36), to minimize the heat-sinking effect. Also, apply
thermal compound to maximize heat transfer between the
IC and the thermocouple.
An infrared thermometer is a recommended alternative.
The IR thermometer from Optris has a 1mm spot size,
ideal for monitoring small surface mount packages. Also,
the optional stand makes it easy to keep the beam on the
IC for long periods of time.
Input Capacitor
Connect a 1.0µF capacitor from VIN to GND. Micrel
recommends the C5750X7R2E105M, 1.0µF, 250V
capacitor made by TDK. When using a different capacitor,
assure that the voltage rating of the capacitor exceeds any
potential transient.
CPSRR Capacitor
Connect a 0.1µF capacitor from CPSRR to GND to
maintain high power supply rejection. The voltage rating of
the capacitor must be at least 14V.
Output Capacitor
Connect a 10µF capacitor from VOUT to GND. Assure that
the voltage rating of the capacitor exceeds the designed
output voltage of the MIC5282.
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Micrel, Inc.
MIC5282
Functional Diagram
MIC5282 Adjustable Version
MIC5282 Fixed Version
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Micrel, Inc.
MIC5282
MIC5282 Evaluation Board Schematic
MIC5282 Evaluation Board Schematic
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Micrel, Inc.
MIC5282
Bill of Materials
Item
C1
Part Number
C5750X7R2E105M
C2
08053C104KAT2A
C3
0805ZD106KAT2A
Manufacturer
Description
Qty.
(1)
1.0µF, 250V, 20%, X7R capacitor (2220)
1
(2)
0.1µF 25V 20%, X7R capacitor (0805)
1
TDK
AVX
AVX
(3)
1
0
Capacitor
0
0Ω, 1% resistor, 0603
1
C4
OPEN
C5
OPEN
R1
CRCW06030000F
R2
CRCW06032942F
Vishay/Dale
29.4kΩ, 1% resistor, 0603
1
R3
CRCW06031002F
Vishay/Dale
10.0kΩ, 1% resistor, 0603
1
R4
CRCW06031822F
Vishay/Dale
18.2kΩ, 1%, resistor, 0603
1
R5
CRCW06033012F
Vishay/Dale
30.1kΩ, 1% resistor chip, 0603
1
R6
CRCW06036982F
Vishay/Dale
69.8kΩ, 1%, resistor, 0603
1
120VIN, 50mA, Ultra-Low IQ, High-PSRR Linear Regulator
1
U1
MIC5282YMME
Panasonic
10µF, 10V, 20%, X5R, capacitor (0805)
100µF, 160V, 20% capacitor (ALU, 0.492" diameter can 0.197" lead
spacing - Part # ECA-2CM101)
ANY
Vishay/Dale
(5)
Micrel
(4)
Notes:
1. TDK: www.tdk.com.
2. AVX: www.avx.com.
3. Panasonic: www.panasonic.com.
4. Vishay Tel: www.vishay.com.
5. Micrel, Inc.: www.micrel.com.
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Micrel, Inc.
MIC5282
PCB Evaluation Board Layout
Top Layer Silk Screen
Top Layer Traces
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14
Revision 1.1
Micrel, Inc.
MIC5282
PCB Evaluation Board Layout (Continued)
Bottom Layer Traces
Bottom Layer Silk Screen
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Micrel, Inc.
MIC5282
PCB Evaluation Board Layout (Continued)
EV Board Dimensions
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Revision 1.1
Micrel, Inc.
MIC5282
Package Information and Recommended Landing Pattern(1)
8-Pin MSOP
Note:
1.
Package information is correct as of the publication date. For updates and most current information, go to www.micrel.com.
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Revision 1.1
Micrel, Inc.
MIC5282
Package Information and Recommended Landing Pattern(1) (Continued)
8-Pin Exposed Pad (ePad) MSOP
February 12, 2014
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Micrel, Inc.
MIC5282
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This
information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,
specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual
property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability
whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties
relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product
can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant
into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A
Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully
indemnify Micrel for any damages resulting from such use or sale.
© 2011 Micrel, Incorporated.
February 12, 2014
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