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SC221EVB Datasheet(PDF) 3 Page - Semtech Corporation |
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SC221EVB Datasheet(HTML) 3 Page - Semtech Corporation |
3 / 14 page 3 SC221 x 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) All voltage values in this section are with respect to PGND pin voltage. (2) Tested according to JEDEC standard JESD22-A114-B. (3) 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. Absolute Maximum Ratings AVIN, PVIN (V)....................................... 6.0 VOUT, FB, EN, SW (V) .....................-0.3to(V IN +0.3) AGND (V) ................................-0.3 to +0.3 ESD Protection Level(1) (kV) .......................... 3kV Recommended Operating Conditions Input Voltage Range (V) ..................... +2.7 to +5.5 Output DC Current (mA). . . . . . . . . . . . . . . . . . . . . up to 650 Operating Temperature Range (°C) .......... -40 to +85 Thermal Information Thermal Resistance, Junction to Ambient(2) (°C/W)....38 Junction Temperature Range (°C) .......... -40 to +150 Storage Temperature Range (°C) ............ -65 to +150 Lead Temperature (soldering 10s (°C) ................ 260 Unless otherwise specified: AVIN=PVIN = 3.6V, EN = AVIN = PVIN, C IN=COUT =1.0μF, L=220nH. TA = 25°C for typical values, -40°C < TA = TJ < 85°C for minimum and maximum values. Parameter Symbol Condition Min Typ Max Units POWER SUPPLY Input Voltage V IN 2.7 5.5 V Input Quiescent Current I VIN_Q No load, no switching 17.5 60 µA Shutdown Current I VIN_SD EN = 0V 1.0 µA POWER SWITCH PMOS On Resistance 400 mΩ NMOS On Resistance 360 mΩ OSCILLATOR Switching Frequency f OSC PWM Mode 16 20 24 MHz REGULATION Output Voltage Tolerance(1) V OUT_TOL -4.0 4.0 % Current Limit I LIMIT 800 1300 mA Soft-Start(1) t SS EN pin low to high 40 µs Feedback Voltage V FB 2.7V ≤ VIN ≤ 5.5V 0.97 1.00 1.03 V Electrical Characteristics |
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