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MIC38C42BM Datasheet(PDF) 4 Page - Micrel Semiconductor |
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MIC38C42BM Datasheet(HTML) 4 Page - Micrel Semiconductor |
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4 / 11 page  MIC38C42/3/4/5 Micrel, Inc. M9999-091107 4 September 2007 Electrical Characteristics VDD = 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 TA = 25°C, IO = 1mA 4.90 5.00 5.10 V Line Regulation 12V ≤ VDD ≤ 18V, IO = 5µA, Note 6 2 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 TA = 125°C, 1000 hrs., Note 1 5 25 mV Output Short Circuit –30 –80 –180 mA Oscillator Section Initial Accuracy TA = 25°C, Note 5 49 52 55 kHz Voltage Stability 12 ≤ VDD ≤ 18V, Note 6 0.2 1.0 % Temp. Stability TMIN ≤ TA ≤ TMAX, Note 1 0.04 %/°C Clock Ramp TA = 25°C, VRT/CT = 2V 7.7 8.4 9.0 mA Reset Current TA = TMIN to TMAX 7.2 8.4 9.5 mA Amplitude VRT/CT peak to peak 1.9 Vp-p Error Amp Section Input Voltage VCOMP = 2.5V 2.42 2.50 2.58 V Input Bias Current VFB = 5.0V –0.1 –2 µA AVOL 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 VFB = 2.7V, VCOMP = 1.1V 2 14 mA Output Source Current VFB = 2.3V, VCOMP = 5V –0.5 –1 mA VOUT High VFB = 2.3V, RL = 15k to ground 5 6.8 V VOUT Low VFB = 2.7V, RL = 15k to VREF 0.1 1.1 V Absolute Maximum Ratings Zener Current (VDD) ................................................... 30mA Operation at ≥18V may require special precautions (Note 6). Supply Voltage (VDD), Note 6........................................20V Switch Supply Voltage (VD)...........................................20V Current Sense Voltage (VISNS).......................–0.3V to 5.5V Feedback Voltage (VFB) .................................–0.3V to 5.5V Output Current, 38C42/3/4/5 (IOUT) ............................. 0.5A Storage Temperature (TA)......................... –65°C to +150°C Operating Ratings Junction Temperature (TJ)......................................... 150°C Package Thermal Resistance 8-Pin Plastic DIP (θJA).......................................125°C/W 8-Pin MSOP (θJA)..............................................250°C/W 8-Pin SOIC (θJA)................................................170°C/W 14-Pin Plastic DIP (θJA) ......................................90°C/W 14-Pin SOIC (θJA)..............................................145°C/W |
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