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MIC38C42A Datasheet(PDF) 4 Page - Micrel Semiconductor |
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MIC38C42A Datasheet(HTML) 4 Page - Micrel Semiconductor |
4 / 9 page MIC38C42A/43A/44A/45A Micrel, Inc. M9999-042205 4 April 2005 Electrical Characteristics(Note 6) V DD = 15V, Note 4; RT = 11.0k; CT = 3.3nF; –40°C ≤ TA ≤ 85°C; unless noted Parameter Test Conditions Min Typ Max Units Reference Section Output Voltage T A = 25°C, IO = 1mA 4.90 5.00 5.10 V Line Regulation 12V ≤ VDD ≤ 18V, IO = 5µA2 20 mV Load Regulation 1 ≤ IO ≤ 20mA 1 25 mV Temp. Stability Note 1 0.2 mV/°C Total Output Variation Line, Load, Temp., Note 1 4.82 5.18 V Output Noise Voltage 10Hz ≤ f ≤ 10kHz, TA = 25°C, Note 1 50 µV Long Term Stability T A = 125°C, 1000 hrs., Note 1 525 mV Output Short Circuit –30 –80 –180 mA Oscillator Section Initial Accuracy T A = 25°C, Note 5 47 53 59 kHz Voltage Stability 12 ≤ VDD ≤ 18V 0.2 1.0 % Temp. Stability T MIN ≤ TA ≤ TMAX, Note 1 0.04 %/°C Clock Ramp T A = 25°C, VRT/CT = 2V, Note 1 7.7 8.4 9.0 mA Reset Current Amplitude V RT/CT peak to peak 1.9 Vp-p Error Amp Section Input Voltage V COMP = 2.5V 2.4 2.50 2.58 V Input Bias Current V FB = 5.0V –0.1 –2 µA A VOL 2 ≤ VO ≤ 4V 65 90 dB Unity Gain Bandwidth Note 1 0.7 1.0 MHz PSRR 12 ≤ VDD ≤ 18V 60 dB Output Sink Current V FB = 2.7V, VCOMP = 1.1V 2 14 mA Output Source Current V FB = 2.3V, VCOMP = 5V –0.3 –1 mA V OUT High V FB = 2.3V, RL = 15k to ground 5 6.8 V V OUT Low V FB = 2.7V, RL = 15k to VREF 0.1 1.1 V Absolute Maximum Ratings Supply Voltage (V DD) .................................................... 20V Switch Supply Voltage (V D) .......................................... 20V Current Sense Voltage (V ISNS) ..................... –0.3V to 5.5V Feedback Voltage (V FB) ................................ –0.3V to 5.5V Output Current (I OUT) ................................................... 0.5A Storage Temperature (T A) ....................... –65°C to +150°C Operating Ratings Junction Temperature (T J) ........................................ 150°C Package Thermal Resistance 8-Pin MM8™ (θJA) .............................................250°C/W 8-Pin SOIC (θJA) ...............................................170°C/W |
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