MAQ5283 MICREL | Alldatasheet

Document overview

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Technical content

Features

  • 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 cu rrent-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 - 5 0 - 2 50 2 55 07 5 1 0 0 1 2 5 QUIESCENT CURRENT (µA) TEMPERATURE (°C) Quiescent Supply Current vs. Temperature VIN = 12V VOUT = 1.23V IOUT = 0mA October 2012 M9999-100912-A

Micrel, Inc. MAQ5283 October 2012 2 M9999-100912-A

Ordering Information

Part Number Output Voltage Top Mark Temperature Range Package Lead Finish MAQ5283YME 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 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 Adjustable Output Fixed Output Name Function 1 1 VIN Supply Voltage Input. Connect 1µF capacitor from VIN to GND. 2, 3, 7 2, 3, 7 NC Not internally connected. Connect NC to GND or leave unconnected. 4 4 CPSRR Bypass Capacitor Connection. Connect 0.1µF capacitor from CPSRR to GND. 5 5 GND Ground. 6 — FB Feedback Connection. For external resistor divider to set VOUT. — 6 SNS Sense input. Connect SNS to VOUT. 8 8 VOUT Regulator Output. Connect 10µF capacitor from VOUT to GND. EP EP ePad Exposed Pad (ePad) for Thermal Dissipation. Connect to GND.

Micrel, Inc. MAQ5283 October 2012 3 M9999-100912-A Absolute Maximum Ratings(1) ESD Ratings(4) Operating Ratings(2) Junction Thermal Resistance (θJA) 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 Power Supply Input Input Voltage Range 6 120 V Quiescent Supply Current IOUT = 0 8 14 µA Output Voltage Output Voltage Accuracy Variation from nominal VOUT 100µA ≤ IOUT ≤ 150mA -5 +5 % Line Regulation VIN = 10V to 120V −0.5 0.04 +0.5 % Feedback Input (Adjustable) FB Voltage 100µA ≤ IOUT ≤ 150mA 1.167 1.228 1.289 V FB Current 3.2 nA Current Limit Current Limit VOUT = 0V 180 300 500 mA Ripple Rejection 100Hz ≤ f ≤ 1kHz 70 dB 1kHz < f ≤ 30kHz 75 dB Power Supply Rejection Ratio IOUT = 50mA 30kHz < f ≤ 100kHz 65 dB Power Dropout Voltage Dropout Voltage IOUT = 150mA 1.8 2.8 V Thermal Protection Thermal-Shutdown Temperature TJ rising 155 °C Thermal-Shutdown Hysteresis 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 T A (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.

Micrel, Inc. MAQ5283 October 2012 4 M9999-100912-A Typical Characteristics 0 2 04 06 08 0 1 0 0 1 2 QUIESCENT CURRENT (µA) INPUT VOLTAGE (V) Quiescent Supply Current vs. Input Voltage VOUT = 5V IOUT = 0 -50 -25 0 25 50 75 100 125 QUIESCENT CURRENT (µA) TEMPERATURE (°C) Quiescent Supply Current vs. Temperature VIN = 12V VOUT = 1.23V IOUT = 0mA 4.998 4.999 5.000 5.001 5.002 0 20 40 60 80 100 120 OUTPUT VOLTAGE (V) INPUT VOLTAGE (V) Output Voltage vs. Input Voltage VOUT = 5V IOUT = 100µA 4.90 4.95 5.00 5.05 5.10 0 25 50 75 100 125 150 OUTPUT VOLTAGE (V) OUTPUT CURRENT (mA) Output Voltage vs. Output Current VIN = 12V VOUT = 5V 4.85 4.90 4.95 5.00 5.05 5.10 5.15 -50 -25 0 25 50 75 100 125 OUTPUT VOLTAGE (V) TEMPERATURE (°C) Output Voltage vs. Temperature VIN = 12V VOUT = 5V IOUT = 100µA 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 2 55 07 5 1 0 0 1 2 5 1 5 0 DROPOUT VOLTAGE (V) OUTPUT CURRENT (mA) Dropout Voltage vs. Output Current VOUT = 5V - 5 0 - 2 50 2 55 07 5 1 0 0 1 2 5 DROPOUT VOLTAGE (V) TEMPERATURE (°C) Dropout Voltage vs. Temperature VOUT = 5V IOUT = 150mA -50 -25 0 25 50 75 100 125 FB PIN CURRENT (nA) TEMPERATURE (°C) Feedback Pin Current vs. Temperature VIN = 12V VFB = 1.228V IOUT = 0 0 2 04 06 08 0 1 0 0 1 2 FB PIN CURRENT (nA) INPUT VOLTAGE (V) Feedback Pin Current vs. Input Voltage VFB = 1.228V

Micrel, Inc. MAQ5283 October 2012 5 M9999-100912-A Typical Characteristics (Continued) 1.20 1.21 1.22 1.23 1.24 1.25 - 5 0 - 2 50 2 55 07 5 1 0 0 1 2 5 FB PIN VOLTAGE (V) TEMPERATURE (°C) Feedback Pin Voltage vs. Temperature VIN = 12V VOUT = 5V IOUT = 100µA 1.20 1.21 1.22 1.23 1.24 1.25 0 25 50 75 100 125 150 FB PIN VOLTAGE (V) OUTPUT CURRENT (mA) Feedback Pin Voltage vs. Output Current VIN = 12V VOUT = 5V 100 200 300 400 500 -50 -25 0 25 50 75 100 125 CURRENT LIMIT (mA) TEMPERATURE (°C) Current Limit vs. Temperature VIN = 12V VOUT = 0V -0.10 -0.05 0.00 0.05 0.10 - 5 0 - 2 50 2 55 07 5 1 0 0 1 2 5 LINE REGULATION (%) TEMPERATURE (°C) Line Regulation vs. Temperature VIN = 10V to 120V VOUT = 5V IOUT = 100µA 0 25 50 75 100 125 150 CASE TEMPERATURE (°C) OUTPUT CURRENT (mA) Case Temperature* (ME) vs. Output Current VIN = 12V VOUT = 5V 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 2 55 07 5 1 0 0 1 2 5 1 5 0 POWER DISSIPATION (W) OUTPUT CURRENT (mA) Power Dissipation (ME) vs. Output Current VIN = 12V VOUT = 5V -120 -100 -80 -60 -40 -20 0.01 0.1 1 10 100 1000 RIPPLE REJECTION (dB) FREQUENCY (kHz) PSRR vs. Frequency VIN = 12V VOUT = 5.0V IOUT = 50mA VRIPPLE = 70mV CIN = None CPSRR = 0.1µF COUT = 10µF 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, ambi ent temperature, and proximity to other heat emitting components.

Micrel, Inc. MAQ5283 October 2012 6 M9999-100912-A Functional Characteristics

Micrel, Inc. MAQ5283 October 2012 7 M9999-100912-A Functional Characteristics (Continued)

Micrel, Inc. MAQ5283 October 2012 8 M9999-100912-A 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 o ffer 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 Thermal Protection The MAQ5283 has internal thermal shutdown to protect it from excessive heating of the die. When the junction temperature exceeds approxim ately +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 ther mal 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. Output Voltage Setting For the MAQ5283YME, V OUT is programmable from 1.23V to 5.5V using an external resistive divider. V OUT is set using the following equation: ⎛ + × =1R2 R1V VREFOUT Eq. 1 where VREF = 1.228V, and R1 and R2 form the feedback voltage divider from VOUT to ground. 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 heat- sinking 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 Op tris 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.

Micrel, Inc. MAQ5283 October 2012 9 M9999-100912-A Functional Diagram MAQ5283 Adjustable Version MAQ5283 Fixed Version

Micrel, Inc. MAQ5283 October 2012 10 M9999-100912-A MAQ5283 Evaluation Board Schematic MAQ5283 Evaluation Board Schematic Bill of Materials Item Part Number Manufacturer Description Qty. C1 C5750X7R2E105M TDK(1) 1.0µF, 250V, 20%, X7R capacitor (2220) 1 C2 08053C104KAT2A AVX(2) 0.1µF 25V 20%, X7R capacitor (0805) 1 C3 0805ZD106KAT2A AVX 10µF, 10V, 20%, X5R, capacitor (0805) 1 R1 CRCW06030000F Vishay/Dale(3) 0Ω, 1% resistor, 0603 1 R2 CRCW06032942F Vishay/Dale 29.4kΩ, 1% resistor, 0603 1 R3 CRCW06039531F Vishay(3) 9.53kΩ Film Resistor, Size 0603, 1% 1 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 U1 MAQ5283YML Micrel(4) 120V IN, 150mA, Ultra-Low IQ, High-PSRR Linear Regulator 1 Notes: 1. TDK: www.tdk.com. 2. AVX: www.avx.com. 3. Vishay Tel: www.vishay.com.

Micrel, Inc. MAQ5283 October 2012 11 M9999-100912-A PCB Evaluation Board Layout Top Layer Bottom Layer

Micrel, Inc. MAQ5283 October 2012 12 M9999-100912-A PCB Evaluation Board Layout (Continued) Evaluation Board Dimensions

Micrel, Inc. MAQ5283 October 2012 13 M9999-100912-A

Package Information

8-Pin Exposed Pad SOIC (ME)

Micrel, Inc. MAQ5283 October 2012 14 M9999-100912-A 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 reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical impla 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. can nt © 2012 Micrel, Incorporated.