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MIC24052 Datasheet(PDF) 4 Page - Microchip Technology |
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MIC24052 Datasheet(HTML) 4 Page - Microchip Technology |
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4 / 34 page  MIC24052 DS20005659A-page 4 2016 Microchip Technology Inc. TABLE 1-1: ELECTRICAL CHARACTERISTICS Electrical Characteristics: PVIN = VIN = VEN = 12V, VBST – VSW = 5V; TA = 25°C, unless noted. Bold values indicate –40°C ≤ TJ ≤ +125°C. (Note 1). Parameters Sym. Min. Typ. Max. Units Conditions Power Supply Input Input Voltage Range VIN, PVIN 4.5 — 19 V— Quiescent Supply Current — — 450 750 µA VFB = 1.5V (non-switching) Shutdown Supply Current — — 5 10 µA VEN = 0V VDD Supply Voltage VDD Output Voltage — 4.8 5 5.4 VVIN = 7V to 19V, IDD = 40 mA VDD UVLO Threshold — 3.7 4.2 4.5 VVDD Rising VDD UVLO Hysteresis — — 400 — mV — Dropout Voltage (VIN – VDD)— — 380 600 mV IDD = 25 mA DC/DC Controller Output Voltage Adjust Range VOUT 0.8 — 5.5 V— Reference Feedback Reference Voltage — 0.792 0.8 0.808 V 0°C ≤ TJ ≤ 85°C (±1.0%) 0.788 0.8 0.812 –40°C ≤ TJ ≤ 125°C (±1.5%) Load Regulation — — 0.25 — % IOUT = 1A to 6A (Continuous Mode) Line Regulation — — 0.25 — % VIN = 4.5V to 19V FB Bias Current — — 50 500 nA VFB = 0.8V Enable Control EN Logic Level High — 1.8 —— V — EN Logic Level Low — — — 0.6 V— EN Bias Current — — 6 30 µA VEN = 12V Oscillator Switching Frequency (Note 2)— 450 600 750 kHz VOUT = 2.5V Maximum Duty Cycle (Note 3)— — 82 — % VFB = 0V Minimum Duty Cycle — — 0 — % VFB = 1.0V Minimum Off-Time — — 300 — ns — Soft-Start Soft-Start Time — — 3 — ms — Short-Circuit Protection Peak Inductor Current-Limit Threshold —7.5 11 17 A VFB = 0.8V, TJ = 25°C Peak Inductor Current-Limit Threshold —6.6 11 17 A VFB = 0.8V, TJ = 125°C Short-Circuit Current — — 8 — A VFB = 0V Note 1: Specification for packaged product only. 2: Measured in test mode. 3: The maximum duty-cycle is limited by the fixed mandatory off-time (tOFF) of typically 300 ns. |
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