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. 2 Revision 2.0 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. October 2, 2014 3 Revision 2.0 Micrel, Inc. 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 October 2, 2014 4 157 °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. October 2, 2014 6 Revision 2.0 Micrel, Inc. MAQ5282 Functional Characteristics October 2, 2014 7 Revision 2.0 Micrel, Inc. MAQ5282 Functional Characteristics (Continued) October 2, 2014 8 Revision 2.0 Micrel, Inc. 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. October 2, 2014 9 Revision 2.0 Micrel, Inc. MAQ5282 Functional Diagram MAQ5282 Adjustable Version MAQ5282 Fixed Version October 2, 2014 10 Revision 2.0 Micrel, Inc. MAQ5282 MAQ5282 Evaluation Board Schematic MAQ5282 Evaluation Board Schematic October 2, 2014 11 Revision 2.0 Micrel, Inc. 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. October 2, 2014 12 Revision 2.0 Micrel, Inc. MAQ5282 PCB Evaluation Board Layout Top Layer Silk Screen Top Layer Traces October 2, 2014 13 Revision 2.0 Micrel, Inc. MAQ5282 PCB Evaluation Board Layout (Continued) Bottom Layer Traces Bottom Layer Silk Screen October 2, 2014 14 Revision 2.0 Micrel, Inc. MAQ5282 PCB Evaluation Board Layout (Continued) EV Board Dimensions October 2, 2014 15 Revision 2.0 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 16 Revision 2.0