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SC424MLTRT Datasheet(PDF) 4 Page - Semtech Corporation |
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SC424MLTRT Datasheet(HTML) 4 Page - Semtech Corporation |
4 / 29 page SC414/SC424 4 Absolute Maximum Ratings LX to PGND (V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30 LX to PGND (V) (transient — 100ns max.) . . . . . . -2 to +30 VIN to PGND (V). . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30 EN/PSV, PGOOD, ILIM, to GND (V) . . . . . . -0.3 to +(V5V + 0.3) VOUT, VLDO, FB, to GND (V) . . . . . . . . . . . -0.3to+(V5V+0.3) V5V to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6 TON to PGND (V). . . . . . . . . . . . . . . . . . . . . -0.3 to +(V5V - 1.5) ENL (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to V IN BST to LX (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0 BST to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +35 AGND to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3 ESD Protection Level(1) (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Recommended Operating Conditions Input Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 to 28 V5V to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 to 5.5 VOUT to PGND (V) . . . . . . . . . . . . . . . . . . . . . . . . . . 0.75 to 5.5 Thermal Information Storage Temperature (°C). . . . . . . . . . . . . . . . . . . . -60 to +150 Maximum Junction Temperature (°C) . . . . . . . . . . . . . . . . 150 Operating Junction Temperature (°C) . . . . . . . .-40 to +125 Thermal resistance, junction to ambient (2) (°C/W) High-side MOSFET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Low-side MOSFET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 PWM controller and LDO thermal resistance . . . . . 40 Peak IR Reflow Temperature (°C) . . . . . . . . . . . . . . . . . . . . 260 Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not recommended. NOTES: (1) Tested according to JEDEC standard JESD22-A114. (2) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards. Unless specified: V IN =12V, T A = +25°C for Typical, -40 to +85 °C for Min. and Max., T J < 125°C, V5V = +5V, Typical Application Circuit Electrical Characteristics Parameter Conditions Min Typ Max Units Input Supplies VIN UVLO Threshold(1) (not available for V5V < 4.5V) Sensed at ENL pin, rising edge 2.40 2.60 2.95 V Sensed at ENL pin, falling edge 2.235 2.40 2.565 VIN UVLO Hysteresis EN/PSV = High 0.2 V V5V UVLO Threshold Measured at V5V pin, rising edge 2.50 2.9 3.0 V Measured at V5V pin, falling edge 2.40 2.7 2.90 V5V UVLO Hysteresis 0.2 V VIN Supply Current ENL, EN/PSV = 0V, V IN = 28V 8.5 20 μA Standby mode; ENL=V5V, EN/PSV = 0V 130 |
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