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MIC2184BM Datasheet(PDF) 4 Page - Micrel Semiconductor |
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MIC2184BM Datasheet(HTML) 4 Page - Micrel Semiconductor |
4 / 12 page MIC2184 Micrel, Inc. M9999-042205 4 April 2005 Electrical Characteristics V INA = VINP = VCSH = 5V, VOUT = 3.3V, VEN/UVLO = 5V, VFREQ/2 = 0V, TJ = 25ºC, unless otherwise specified. Bold values indicate –40ºC < T J < +125ºC. Parameter Condition Min Typ Max Units Regulation Feedback Voltage Reference (±1%) 1.233 1.245 1.257 V (±2%) 1.22 1.27 V Feedback Bias Current 50 nA Output Voltage Line Regulation 5V ≤ VIN ≤ 12V 0.04 % / V Output Voltage Load Regulation 0mV < (V CSH – VCSL) < 75mV 0.9 % Output Voltage Total Regulation 5V ≤ VINA ≤ 12V, 0mV < (VCSH – VCSL) < 75mV (±3%) 1.208 1.282 V Input & V DD Supply V INA Input Current 0.7 mA V INP Input Current, Note 4 (Excluding external MOSFET gate current) 1.0 mA Shutdown Quiescent Current V EN/UVLO = 0V; (IVINA + IVINP) 0.5 5 µA Digital Supply Voltage (V DD)IL = 0 2.82 3.0 3.18 V Digital Supply load regulation I L = 0 to 1mA 0.03 V Undervoltage Lockout V DD upper threshold (turn on threshold) 2.75 V UVLO Hysteresis 100 mV Reference Output(VREF) Reference Voltage (±1.5%) 1.226 1.245 1.264 V (±2.5%) 1.213 1.276 V Reference Voltage Line 5V < V INA < 12V 2 mV Regulation Reference Voltage Load 0 < I REF < 100µA1 mV Regulation Enable/UVLO Enable Input Threshold 0.6 0.9 1.2 V UVLO Threshold (Turn-on threshold) 1.4 1.5 1.6 V UVLO Hysteresis 140 mV Enable Input Current V EN/UVLO = 5V 0.2 5 µA Absolute Maximum Ratings (Note 1) Supply Voltage (V INA, VINP) ......................................... 15V Digital Supply Voltage (V DD) ........................................... 7V Comp Pin Voltage (V COMP) ............................ –0.3V to +3V Feedback Pin Voltage (V FB) .......................... –0.3V to +3V Enable Pin Voltage (V EN/UVLO) ..................... –0.3V to 15V Current Sense Voltage (V CSH–VCSL) ............... –0.3V to 1V Sync Pin Voltage (V SYNC) ................................ –0.3V to 7V Freq/2 Pin Voltage (V FREQ/2) ............................ -0.3V to 7V Power Dissipation (P D) 16 lead SOIC ................................. 400mW @ T A = 85°C 16 lead QSOP ............................... 245mW @ T A = 80°C Ambient Storage Temp ............................ –65°C to +150°C ESD Rating, ............................................................. Note 3 Operating Ratings (Note 2) Supply Voltage (V INA, VINP) ........................ +2.9V to +14V Ambient Operating Temperature ......... –40°C ≤ TA ≤ +85°C Junction Temperature ....................... –40°C ≤ TJ ≤ +125°C Output Voltage Range ...................................... 1.3V to 12V PackageThermal Resistance θJA 16-lead SOP ............................................... 100°C/W θJA 16-lead QSOP ............................................. 163°C/W |
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