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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MIC2876 датащи(PDF) 4 Page - Microchip Technology |
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MIC2876 датащи(HTML) 4 Page - Microchip Technology |
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4 / 26 page  MIC2876 DS20005572A-page 4 2016 Microchip Technology Inc. TABLE 1-1: ELECTRICAL CHARACTERISTICS Electrical Characteristics: VIN = 3.6V, VOUT = 5V, CIN = 4.7 µF, COUT = 22 µF, L = 1 µH, TA = 25°C, unless noted. Bold values are valid for –40°C ≤ TJ ≤ +125°C. (Note 1). Parameters Sym. Min. Typ. Max. Units Conditions Power Supply Supply Voltage Range VIN 2.5 — 5.5 V— UVLO Rising Threshold VUVLOR —2.32 2.49 V— UVLO Hysteresis VUVLOH —200 — mV — Quiescent Current IVIN — 109 — µA Non-switching VIN Shutdown Current IVINSD —1 3 µA VEN = 0V, VIN = 5.5V, VOUT = 0V VOUT Shutdown Current IVOUTSD —2 5 µA VEN = 0V, VIN = 0.3V, VOUT = 5.5V Output Voltage VOUT VIN —5.5 V — Feedback Voltage VFB 0.8865 0.9 0.9135 V Adjustable version, IOUT = 0A Voltage Accuracy — –1.5 — +1.5 % Fixed version, IOUT = 0A Line Regulation — — 0.3 — %/V 2.5V < VIN < 4.5V, IOUT = 500 mA Load Regulation — — 0.2 — %/A IOUT = 200 mA to 1200 mA Maximum Duty Cycle DMAX —92— % — Minimum Duty Cycle DMIN —6.5 — % — Low-Side Switch Current Limit (Note 2) ILS 3.8 4.8 5.8 AVIN = 2.5V Switch On-Resistance PMOS — 79 — mΩ VIN = 3.0V, ISW = 200 mA, VOUT = 5.0V NMOS — 82 — VIN = 3.0V, ISW = 200 mA, VOUT = 5.0V Switch Leakage Current ISW —0.2 5 µA VEN = 0V, VIN = 5.5V Oscillator Frequency FOSC 1.6 2 2.4 MHz — Overtemperature Shutdown Threshold TSD —155 — °C — Overtemperature Shutdown Hysteresis —— 15 — °C — Soft-Start Soft-Start Time TSS —1.1 — ms VOUT = 5.0V EN, /PG Control Pins EN Threshold Voltage VEN 1.5 — — V Boost converter and chip logic ON —— 0.4 Boost converter and chip logic OFF EN Pin Current — — 1.5 3 µA VIN = VEN = 3.6V Power Good Threshold (Rising) V/PG-THR —0.9 x VOUT —V — Note 1: Specification for packaged product only. 2: Guaranteed by design and characterization. |
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