MAQ5282 - Micrel

MAQ5282
120VIN, 50mA, Ultra-Low IQ, High-PSRR
Linear Regulator
Automotive
General Description
The MAQ5282 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
automotive, industrial and telecom, the MAQ5282 offers
±3% initial accuracy, extremely high-power supply
rejection ratio (80dB at 10kHz) and ultra-low quiescent
current of 6µA. The MAQ5282 is optimized for high-voltage
line transients, making it ideal for harsh environment
applications.
The MAQ5282 is offered in both fixed output voltage
(3.3V/5.0V) and adjustable output voltage (1.27V to 5.5V)
options.
The MAQ5282 operates over a −40°C to +125°C
temperature range and is available in lead-free, RoHScompliant, 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.
Features
•
•
•
•
•
•
•
•
•
•
AEC-Q100 qualified
Wide input voltage range: 6V to 120V DC
Ultra-low quiescent current: 6µA (typ)
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 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
QUIESCENT CURRENT (µA)
12
10
8
6
4
VOUT = 5V
IOUT = 0
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
October 2, 2014
Revision 2.0
Micrel, Inc.
MAQ5282
Ordering Information
Part Number
Output Voltage
Top Mark
Temperature Range
Package
Lead Finish
Adjustable
A8Q2
–40°C to +125°C
8-Pin ePad MSOP
Pb-Free
MAQ5282-3.3YMME
3.3V
8Q2S
–40°C to +125°C
8-Pin ePad MSOP
Pb-Free
MAQ5282-5.0YMME
5.0V
58Q2
–40°C to +125°C
8-Pin ePad MSOP
Pb-Free
MAQ5282YMME
Pin Configuration
8-Pin ePad MSOP
MAQ5282-x.xYMME
8-Pin ePad MSOP
MAQ5282YMME
(TOP VIEW)
(TOP VIEW)
Pin Description
MAQ5282YMME
1
Pin
MAQ5282-x.xYMME
1
2, 3, 7
2, 3, 7
Name
VIN
NC
4
4
CPSRR
5
5
GND
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.
6
−
FB
−
6
SNS
8
8
VOUT
Regulator Output. Connect 10µF capacitor from VOUT to GND.
EP
EP
ePad
Exposed Pad (ePad) for Thermal Relief. Connect EP to GND.
October 2, 2014
Feedback Connection. For external resistor divider to set VOUT.
Sense input. Connect SNS to VOUT.
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Micrel, Inc.
MAQ5282
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
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
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
120
V
11
µA
Power Supply Input
Input Voltage Range(6)
Quiescent Supply Current
6
(7)
IOUT = 0
6
Output Voltage
Adjustable
1.27
3.2
Fixed 3.3V
Output Voltage
Fixed 5.0V
3.4
3.13
3.3
3.47
5.0
5.15
4.75
5.0
5.25
V
-3
+3
%
-5
+5
%
0.5
+1.0
%
-0.5
0.04
+0.5
%/V
1.232
1.270
1.308
1.206
1.270
1.333
Variation from nominal VOUT
Load Regulation
IOUT = 100µA to 50mA
-1.0
VIN = 10V to 120V
Line Regulation
3.3
4.85
Output Voltage Accuracy
(8)
5.5
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
f = 20kHz to 1MHz
80
dB
Notes:
1.
Exceeding the 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. Human body model, 1.5kΩ in series with 100pF.
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.
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MAQ5282
Electrical Characteristics(5) (Continued)
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
2
3
V
Power Dropout Voltage
Dropout Voltage
IOUT = 50mA
Thermal Protection
Thermal-Shutdown Temperature
TJ rising
Thermal-Shutdown Hysteresis
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157
°C
15
°C
Revision 2.0
Micrel, Inc.
MAQ5282
Typical Characteristics
Quiescent Supply Current
vs. Temperature
Quiescent Supply Current
vs. Input Voltage
12
Output Voltage
vs. Input Voltage
12
5.15
10
5.10
8
6
4
VOUT = 5V
IOUT = 0
2
OUTPUT VOLTAGE (V)
QUIESCENT CURRENT (µA)
QUIESCENT CURRENT (µA)
VIN = 12V
10
8
6
VIN = 12V
VOUT = 5V
4
IOUT = 0mA
20
40
60
80
100
5.00
4.95
4.85
-50
0
IOUT = 5mA
5.05
4.90
2
0
0
VOUT = 5V
-25
0
120
25
50
75
100
0
125
20
40
60
80
100
120
INPUT VOLTAGE (V)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
Output Voltage
vs. Output Current
Output Voltage
vs. Temperature
5.15
5.15
5.05
5.00
4.95
4.90
VOUT = 5V
5.10
DROPOUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
IOUT = 5mA
5.05
5.00
4.95
4.90
4.85
4.85
0
10
20
30
40
50
-50
-25
0
OUTPUT CURRENT (mA)
25
50
75
100
2.0
1.5
1.0
0.5
0
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
VOUT = 5V
2.5
0.0
125
10
Feedback Pin Voltage
vs. Input Voltage
4
20
30
40
50
OUTPUT CURRENT (mA)
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)
VOUT = 5V
5.10
3.0
VIN = 12V
VIN = 12V
DROPOUT VOLTAGE (V)
Dropout Voltage
vs. Output Current
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)
October 2, 2014
5
100
120
0
20
40
60
80
100
120
INPUT VOLTAGE (V)
Revision 2.0
Micrel, Inc.
MAQ5282
Typical Characteristics (Continued)
10
VOUT = 5V
1.30
IOUT = 5mA
1.29
1.28
1.27
1.26
1.30
8
VIN = 12V
VIN = 12V
VADJ = 1.27V
VOUT = 5V
FB PIN VOLTAGE (V)
VIN = 12V
FB PIN CURRENT (nA)
FB PIN VOLTAGE (V)
1.32
1.31
Feedback Pin Voltage
vs. Output Current
Feedback Pin Current
vs. Temperature
Feedback Pin Voltage
vs. Temperature
IOUT = 0
6
4
2
1.29
1.28
1.27
1.26
1.25
0
1.24
-50
-25
0
25
50
75
100
1.25
-50
125
-25
0
75
100
125
0
150
100
50
IOUT = 100uA
0.0005
0.0000
-0.0005
-25
0
25
50
75
100
-25
IOUT =100uA to 50mA
0.50
0.25
0
25
50
100
75
125
-50
0
-25
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
0.75
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 MAQ5282 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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MAQ5282
Functional Characteristics
October 2, 2014
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MAQ5282
Functional Characteristics (Continued)
October 2, 2014
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Detailed Description
The MAQ5282 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 MAQ5282YMME offer an adjustable
output voltage from 1.27V to 5.5V. The MAQ52823.3YMME offer fixed 3.3V outputs and the MAQ52825.0YMME 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
The MAQ5282 has an internal thermal shutdown circuit 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
The MAQ5282 features output current-limit protection. The
output sustains a continuous short circuit to GND without
damage to the device, but thermal shutdown often results.
MAQ5282
Output Voltage Setting
For the MAQ5282YMME, 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 thermocouple 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 1µF capacitor from VIN to GND. Micrel
recommends the C5750X7R2E105M, 1µF, 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 MAQ5282.
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MAQ5282
Functional Diagram
MAQ5282 Adjustable Version
MAQ5282 Fixed Version
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MAQ5282
MAQ5282 Evaluation Board Schematic
MAQ5282 Evaluation Board Schematic
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MAQ5282
Bill of Materials
Item
C1
Part Number
C5750X7R2E105
M
C2
08053C104KAT2A
C3
0805ZD106KAT2A
C4, C5
Manufacturer
TDK
(1)
(2)
AVX
AVX
Description
Qty.
1.0µF, 250V, 20%, X7R capacitor (2220)
1
0.1µF 25V 20%, X7R capacitor (0805)
1
10µF, 10V, 20%, X5R, capacitor (0805)
1
OPEN
R1
CRCW06030000F
R2
CRCW06032942F
R3
R4
0
(3)
Vishay/Dale
0Ω, 1% resistor, 0603
1
Vishay/Dale
29.4kΩ, 1% resistor, 0603
1
CRCW06031002F
Vishay/Dale
10.0kΩ, 1% resistor, 0603
1
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
MAQ5282YMME
Micrel
(4)
Notes:
9. TDK: www.tdk.com.
10. AVX.: www.avx.com.
11. Vishay Tel: www.vishay.com.
12. Micrel, Inc.: www.micrel.com.
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Micrel, Inc.
MAQ5282
PCB Evaluation Board Layout
Top Layer Silk Screen
Top Layer Traces
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MAQ5282
PCB Evaluation Board Layout (Continued)
Bottom Layer Traces
Bottom Layer Silk Screen
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Micrel, Inc.
MAQ5282
PCB Evaluation Board Layout (Continued)
EV Board Dimensions
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Micrel, Inc.
MAQ5282
Package Information
8-Pin Exposed Pad (ePad) MSOP (MME)
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, Inc. is a leading global manufacturer of IC solutions for the worldwide high performance linear and power, LAN, and timing & communications
markets. The Company’s products include advanced mixed-signal, analog & power semiconductors; high-performance communication, clock
management, MEMs-based clock oscillators & crystal-less clock generators, Ethernet switches, and physical layer transceiver ICs. Company
customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products.
Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and
advanced technology design centers situated throughout the Americas, Europe, and Asia. Additionally, the Company maintains an extensive network
of distributors and reps worldwide.
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this datasheet. 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.
© 2012 Micrel, Incorporated.
October 2, 2014
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