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MIC5281-3.3YMME Datasheet(PDF) 4 Page - Micrel Semiconductor |
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MIC5281-3.3YMME Datasheet(HTML) 4 Page - Micrel Semiconductor |
4 / 21 page Micrel, Inc. MIC5281 June 2011 4 M9999-062411-A 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 ..................................... +1.27V to +5.5V Junction Temperature ......................... –40°C ≤ TJ ≤ +125°C Power Dissipation (PD)........................... Internally Limited (3) Junction Thermal Resistance ( θ JA) 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 ≤ T J ≤ +125°C, unless noted. Parameter Condition Min. Typ. Max. Units Power Supply Input Input Voltage Range (6) 6 120 V Quiescent Supply Current IOUT = 0 6 11 µA Output Voltage Adjustable 1.27 5.5 3.2 3.3 3.4 Fixed 3.3V 3.13 3.3 3.47 4.85 5.0 5.15 Output Voltage Fixed 5.0V 4.75 5.0 5.25 V −3 +3 % Output Voltage Accuracy Variation from nominal VOUT −5 +5 % Load Regulation IOUT = 100µA to 25mA −0.5 0.2 +0.5 % Line Regulation (7) VIN = 10V to 120V −0.5 0.04 +0.5 %/V Feedback Input (Adjustable) 1.232 1.270 1.308 FB Voltage 1.206 1.270 1.333 V FB Current VFB = 1.27V 3.2 nA Current Limit Current Limit VOUT = 0V 30 65 130 mA Ripple Rejection Power Supply Rejection Ratio f = 20kHz to 2MHz >90 dB 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. Line regulation is a percentage of VOUT. |
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