MAQ5283 120VIN, 150mA, Ultra-Low IQ, High-PSRR Linear Regulator Automotive General Description Features The MAQ5283 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. The MAQ5283 is ideal for high input voltage applications such as automotive, industrial, and telecom, because it offers ±3% initial accuracy, extremely high power supply rejection ratio (75dB at 10kHz) and an ultra-low quiescent current of 8µA. The MAQ5283 is optimized for high-voltage line transients, making it ideal for harsh environment applications. The MAQ5283 is offered in both fixed output voltage (3.3V or 5.0V) and adjustable output voltage (1.23V to 5.5V) options. • • • • • • • • • The MAQ5283 operates over a −40°C to +125°C temperature range and is available in a lead-free, RoHScompliant, ePad SOIC-8 package. Data sheet and support documentation are available on the Micrel website: www.micrel.com. AEC-Q100 qualified Wide input voltage range: 6V to 120V DC Ultra-low quiescent current: 8µA 150mA guaranteed output current Adjustable output from 1.23V 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 Applications • Automotive • Industrial applications • Remote keyless entry power supply • Telecom applications • Off-line power supplies ___________________________________________________________________________________________________________ Typical Applications Quiescent Supply Current vs. Temperature QUIESCENT CURRENT (µA) 12 VIN = 12V VOUT = 1.23V IOUT = 0mA 10 8 6 4 2 0 -50 -25 0 25 50 75 100 125 TEMPERATURE (°C) 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 2012 M9999-100912-A Micrel, Inc. MAQ5283 Ordering Information Part Number Output Voltage Top Mark Temperature Range Package Lead Finish Adjustable MAQ5283YME –40°C to +125°C 8-Pin ePad SOIC Pb-Free MAQ5283-3.3YME 3.3V MAQ5283-33YME –40°C to +125°C 8-Pin ePad SOIC Pb-Free MAQ5283-5.0YME 5.0V MAQ5283-50YME –40°C to +125°C 8-Pin ePad SOIC Pb-Free MAQ5283YME Pin Configuration 8-Pin ePAD SOIC MAQ5283-x.xYME Fixed Voltage Output (TOP VIEW) 8-Pin ePAD SOIC MAQ5283YME Adjustable Voltage Output (TOP VIEW) Pin Description Pin Number Name Function Adjustable Output Fixed Output 1 1 2, 3, 7 2, 3, 7 NC 4 4 CPSRR 5 5 GND 6 — FB — 6 SNS 8 8 VOUT Regulator Output. Connect 10µF capacitor from VOUT to GND. EP EP ePad Exposed Pad (ePad) for Thermal Dissipation. Connect to GND. October 2012 VIN 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 VOUT. Sense input. Connect SNS to VOUT. 2 M9999-100912-A Micrel, Inc. MAQ5283 Absolute Maximum Ratings(1) 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 ESD Ratings(4) HBM ......................................................................... 2kV MM .........................................................................200V Operating Ratings(2) VIN ................................................................. +6V to +120V VOUT Adjust Range ..................................... +1.23V to +5.5V Junction Temperature ......................... –40°C ≤ TJ ≤ +125°C Power Dissipation (PD)........................... Internally Limited(3) Junction Thermal Resistance (θJA) 8-pin ePad SOIC ...............................................41°C/W Electrical Characteristics(5) VIN = 12V, CIN = 1.0µF, CPSRR = 0.1µF, COUT = 10µF, IOUT = 100µA, TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted. Parameter Condition Min. Typ. Max. Units 120 V 14 µA +5 % Power Supply Input Input Voltage Range Quiescent Supply Current 6 IOUT = 0 8 Output Voltage Output Voltage Accuracy Line Regulation Variation from nominal VOUT -5 100µA ≤ IOUT ≤ 150mA VIN = 10V to 120V −0.5 0.04 +0.5 % 100µA ≤ IOUT ≤ 150mA 1.167 1.228 1.289 V Feedback Input (Adjustable) FB Voltage FB Current 3.2 nA Current Limit Current Limit VOUT = 0V 180 300 500 mA Ripple Rejection Power Supply Rejection Ratio IOUT = 50mA 100Hz ≤ f ≤ 1kHz 70 dB 1kHz < f ≤ 30kHz 75 dB 30kHz < f ≤ 100kHz 65 dB Power Dropout Voltage Dropout Voltage IOUT = 150mA 1.8 TJ rising 155 °C 15 °C 2.8 V Thermal Protection Thermal-Shutdown Temperature Thermal-Shutdown Hysteresis 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. Human body model, 1.5kΩ in series with 100pF. 5. Specifications are for packaged products only. October 2012 3 M9999-100912-A Micrel, Inc. MAQ5283 Typical Characteristics 12 10 8 6 4 2 0 5.002 VIN = 12V VOUT = 1.23V IOUT = 0mA 10 8 6 4 2 20 40 60 80 100 120 -50 -25 INPUT VOLTAGE (V) 0 25 50 75 100 0 5.00 4.95 4.90 125 5.10 5.00 4.95 4.90 Dropout Voltage vs. Temperature -25 0 25 50 75 100 0 -25 0 25 50 75 TEMPERATURE (°C) October 2012 1.0 0.5 0 25 100 125 50 75 100 OUTPUT CURRENT (mA) Feedback Pin Current vs. Input Voltage 10 VIN = 12V VFB = 1.228V IOUT = 0 16 VFB = 1.228V FB PIN CURRENT (nA) FB PIN CURRENT (nA) 1 150 1.5 125 20 2 125 2.0 Feedback Pin Current vs. Temperature 3 120 2.5 TEMPERATURE (°C) VOUT = 5V IOUT = 150mA 100 0.0 -50 4 80 VOUT = 5V 5.05 150 60 3.0 4.85 100 40 Dropout Voltage vs. Output Current VIN = 12V VOUT = 5V IOUT = 100µA OUTPUT CURRENT (mA) -50 20 INPUT VOLTAGE (V) DROPOUT VOLTAGE (V) OUTPUT VOLTAGE (V) 5.05 75 4.999 125 5.15 VIN = 12V VOUT = 5V 50 5.000 Output Voltage vs. Temperature 5.10 25 5.001 TEMPERATURE (°C) Output Voltage vs. Output Current 0 VOUT = 5V IOUT = 100µA 4.998 0 0 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) VOUT = 5V IOUT = 0 QUIESCENT CURRENT (µA) QUIESCENT CURRENT (µA) 12 DROPOUT VOLTAGE (V) Output Voltage vs. Input Voltage Quiescent Supply Current vs. Temperature Quiescent Supply Current vs. Input Voltage 12 8 4 8 6 4 2 0 0 -50 -25 0 25 50 75 TEMPERATURE (°C) 4 100 125 0 20 40 60 80 100 120 INPUT VOLTAGE (V) M9999-100912-A Micrel, Inc. MAQ5283 Typical Characteristics (Continued) Feedback Pin Voltage vs. Temperature 500 1.25 1.24 1.23 1.22 1.21 VIN = 12V VOUT = 5V 1.24 CURRENT LIMIT (mA) VIN = 12V VOUT = 5V IOUT = 100µA FB PIN VOLTAGE (V) 1.23 1.22 1.21 1.20 1.20 -50 -25 0 25 50 75 100 0 125 25 TEMPERATURE (°C) 50 75 100 125 0.00 VIN = 10V to 120V VOUT = 5V IOUT = 100µA -0.10 CASE TEMPERATURE (°C) 0.05 25 50 -25 0 75 100 125 50 75 100 125 Power Dissipation (ME) vs. Output Current 1.2 VIN = 12V VOUT = 5V 70 60 50 40 30 20 10 VIN = 12V VOUT = 5V 1.0 0.8 0.6 0.4 0.2 0.0 0 25 50 75 100 OUTPUT CURRENT (mA) TEMPERATURE (°C) 25 TEMPERATURE (°C) 0 0 100 -50 80 -25 200 Case Temperature* (ME) vs. Output Current 0.10 -50 300 OUTPUT CURRENT (mA) Line Regulation vs. Temperature -0.05 VIN = 12V VOUT = 0V 400 0 150 POWER DISSIPATION (W) FB PIN VOLTAGE (V) 1.25 LINE REGULATION (%) Current Limit vs. Temperature Feedback Pin Voltage vs. Output Current 125 150 0 25 50 75 100 125 150 OUTPUT CURRENT (mA) PSRR vs. Frequency RIPPLE REJECTION (dB) 40 20 0 -20 VIN = 12V VOUT = 5.0V IOUT = 50mA VRIPPLE = 70mV CIN = None CPSRR = 0.1µF COUT = 10µF -40 -60 -80 -100 -120 0.01 0.1 1 10 100 1000 FREQUENCY (kHz) Case Temperature*: The temperature measurement was taken at the hottest point on the MAQ5283 case mounted on a 2.25-square-inch PCB at an ambient temperature of 25°C; see the “Thermal Measurements” section. Actual results depend on the size of the PCB, ambient temperature, and proximity to other heat emitting components. October 2012 5 M9999-100912-A Micrel, Inc. MAQ5283 Functional Characteristics October 2012 6 M9999-100912-A Micrel, Inc. MAQ5283 Functional Characteristics (Continued) October 2012 7 M9999-100912-A Micrel, Inc. Detailed Description The MAQ5283 voltage regulator accepts a 6V to 120V input voltage and has an ultra-low 8µA typical quiescent current while offering an excellent line transient response and PSRR. These features make it ideal for harsh, noisy environments. All options offer 150mA of output current. The MAQ5283YME offers an adjustable output voltage from 1.23V to 5.5V. The MAQ5283-3.3YME offers a fixed 3.3V output and the MAQ5283-5.0YME offers a fixed 5.0V output. The YME packaged devices feature a heat slug to remove heat from the die more effectively. Applications Information MAQ5283 Output Voltage Setting For the MAQ5283YME, VOUT is programmable from 1.23V to 5.5V using an external resistive divider. VOUT is set using the following equation: ⎛ R1 ⎞ VOUT = VREF × ⎜ + 1⎟ ⎝ R2 ⎠ Eq. 1 where VREF = 1.228V, and R1 and R2 form the feedback voltage divider from VOUT to ground. Thermal Protection The MAQ5283 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 results in a cycled output during continuous thermal-overload conditions. Current Limit The MAQ5283 features output current-limit protection. The output sustains a continuous short circuit to GND without damage to the device, but thermal shutdown often results. The typical value for the current limit of the MAQ5283 is 300mA. 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, make sure that the voltage rating of the capacitor has enough headroom to withstand any potential transient. CPSRR Capacitor To maintain high power supply rejection, connect a 0.1µF capacitor from CPSRR to GND. The voltage rating of the capacitor must be at least 14V. Output Capacitor Connect a 10µF capacitor from VOUT to GND. Make sure that the voltage rating of the capacitor is greater than the designed output voltage of the MAQ5283. October 2012 Thermal Measurements It is always a good idea to measure an IC’s case temperature to make sure that it is within operating limits, but it is easy to get false results. The standard thermocouple that comes with many voltage meters uses a large wire gauge that behaves like a heat-sink. This causes artificially low case temperature measurements. Use a thermocouple of 36-gauge wire or smaller, such as the Omega (5SC-TT-K-36-36), to minimize the heatsinking effect. Also, apply a 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, which is 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. 8 M9999-100912-A Micrel, Inc. MAQ5283 Functional Diagram MAQ5283 Adjustable Version MAQ5283 Fixed Version October 2012 9 M9999-100912-A Micrel, Inc. MAQ5283 MAQ5283 Evaluation Board Schematic MAQ5283 Evaluation Board Schematic Bill of Materials Item C1 Part Number C5750X7R2E105M Manufacturer Description Qty. (1) 1.0µF, 250V, 20%, X7R capacitor (2220) (2) 0.1µF 25V 20%, X7R capacitor (0805) 1 10µF, 10V, 20%, X5R, capacitor (0805) 1 0Ω, 1% resistor, 0603 1 29.4kΩ, 1% resistor, 0603 1 9.53kΩ Film Resistor, Size 0603, 1% 1 TDK C2 08053C104KAT2A C3 0805ZD106KAT2A AVX AVX R1 CRCW06030000F Vishay/Dale(3) R2 CRCW06032942F Vishay/Dale (3) R3 CRCW06039531F R4 CRCW06031742F Vishay 17.4kΩ Film Resistor, Size 0603, 1% 1 R5 CRCW06032802F Vishay 28.0kΩ Film Resistor, Size 0603, 1% 1 R6 CRCW06036192F Vishay 61.9kΩ Film Resistor, Size 0603, 1% 1 120VIN, 150mA, Ultra-Low IQ, High-PSRR Linear Regulator 1 U1 MAQ5283YML Vishay 1 Micrel (4) Notes: 1. TDK: www.tdk.com. 2. AVX: www.avx.com. 3. Vishay Tel: www.vishay.com. 4. Micrel, Inc.: www.micrel.com. October 2012 10 M9999-100912-A Micrel, Inc. MAQ5283 PCB Evaluation Board Layout Top Layer Bottom Layer October 2012 11 M9999-100912-A Micrel, Inc. MAQ5283 PCB Evaluation Board Layout (Continued) Evaluation Board Dimensions October 2012 12 M9999-100912-A Micrel, Inc. MAQ5283 Package Information 8-Pin Exposed Pad SOIC (ME) October 2012 13 M9999-100912-A Micrel, Inc. MAQ5283 Recommended Land Pattern 8-Pin Exposed Pad SOIC 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. © 2012 Micrel, Incorporated. October 2012 14 M9999-100912-A