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AAT2554 Datasheet(PDF) 4 Page - Skyworks Solutions Inc. |
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AAT2554 Datasheet(HTML) 4 Page - Skyworks Solutions Inc. |
4 / 31 page AAT2554 DATA SHEET Total Power Solution for Portable Applications 4 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202176B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 19, 2013 1. The AAT2554 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla- tion with statistical process controls. 2. Output voltage tolerance is independent of feedback resistor network accuracy. Electrical Characteristics1 VINB = 3.6V; TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C. Symbol Description Conditions Min Typ Max Units Step-Down Converter VIN Input Voltage 2.7 5.5 V VUVLO UVLO Threshold VINB Rising 2.7 V Hysteresis 200 mV VINB Falling 1.8 V VOUT Output Voltage Tolerance2 IOUTB = 0 to 250mA, VINB = 2.7V to 5.5V -3.0 3.0 % VOUT Output Voltage Range 0.6 VINB V IQ Quiescent Current No Load 30 μA ISHDN Shutdown Current ENB = GND 1.0 μA ILIM P-Channel Current Limit 600 mA RDS(ON)H High-Side Switch On-Resistance 0.59 RDS(ON)L Low-Side Switch On-Resistance 0.42 ILXLEAK LX Leakage Current VINB = 5.5V, VLX = 0 to VINB 1.0 μA VLinereg/ VIN Line Regulation VINB = 2.7V to 5.5V 0.2 %/V VFB Feedback Threshold Voltage Accuracy VINB = 3.6V 0.591 0.6 0.609 V IFB FB Leakage Current VOUTB = 1.0V 0.2 μA FOSC Oscillator Frequency 1.5 MHz TS Startup Time From Enable to Output Regulation 100 μs TSD Over-Temperature Shutdown Threshold 140 °C THYS Over-Temperature Shutdown Hysteresis 15 °C VEN(L) Enable Threshold Low 0.6 V VEN(H) Enable Threshold High 1.4 V IEN Input Low Current VINB = VENB = 5.5V -1.0 1.0 μA |
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