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SC198 Arkusz danych(PDF) 2 Page - Semtech Corporation |
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SC198 Arkusz danych(HTML) 2 Page - Semtech Corporation |
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2 / 16 page ![]() Exceeding the specifications below 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. Unless otherwise noted: V IN = 3.6V, SYNC = VIN, L = 4.7μH, C = 10μF, TA = -40°C to +85°C. Typical values are at TA = 25°C. Parameter Symbol Conditions Min Typ Max Units Input Voltage Range V IN 2.7 5.5 V VOUT Accuracy(1) ∆V OUT I OUT = 10mA to 600mA -3 3 % Line Regulation V LINEREG V IN = 2.7 to 5.5V, VOUT = 1.8V, IOUT = 300mA 0.2 %/V Load Regulation V LOADREG I OUT = 10mA to 600mA 0.0008 %/mA Minimum Duty Cycle DC MIN 18 % LXA, LXB Current Limit I LIM 0.9 A Quiescent Current I Q I OUT = 0mA, SYNC = 0, ENA, ENB = VIN 50 μA Shutdown Current I SD ENA, ENB = 0, LXA, LXB = Open 0.1 1 μA LXA and LXB Leakage Current I LXA, ILXB V IN = 5.5V, LX = 0V, PMOS 0.1 1 μA V IN = 5.5V, LX = VIN, NMOS -2 0.1 μA Absolute Maximum Ratings Electrical Characteristics Parameter Symbol Maximum Units VIN V IN -0.3 to 7 V EN, SYNC Input V EN ,VSYNC -0.3 to V IN +0.3 V LXA and LXB Voltages V LXA, VLXB -1 to V IN +1 V VOUT V OUT -0.3 to V IN +0.3 V CTLA0, CTLA1, CTLA2, CTLB0, CTLB1 & CTLB2 Voltages -0.3 to V IN +0.3 V Output Short Circuit to GND t SC Indefinite s LXA and LXB Currents I LXA and ILXB 1.2 A Thermal Impedance (Junction to Ambient)(1) θ JA 40 ºC/W Operating Ambient Temperature T A -40 to +85 ºC Maximum Junction Temperature T J 150 ºC Storage Temperature T S -65 to +150 ºC Reflow Solder Temperature T PKG 260 °C ESD Protection Level(2) V ESD 2kV Note: (1) Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad as per JESD51 standards. (2) Tested according to JEDEC standard JESD22-A114-B. 2 © 2007 Semtech Corp. www.semtech.com SC198 POWER MANAGEMENT |
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