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FDG326P Scheda tecnica(PDF) 4 Page - Texas Instruments |
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FDG326P Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 29 page TPS75003-EP SGLS311A – DECEMBER 2006 – REVISED MARCH 2011 www.ti.com ELECTRICAL CHARACTERISTICS VEN1 = VIN1, VEN2 = VIN2, VEN3 = VIN3, VIN1 = VIN2 = 2.2 V, VIN3 = 3 V, VOUT3 = 2.5V, COUT1 = COUT2 = 47 μF, COUT3 = 2.2 μF, TA = -55°C to 125°C, unless otherwise noted. Typical values are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNIT Supply and Logic Input voltage range (IN1, IN2, VINX 2.2 6.5 V IN3)(1) Quiescent current, IQ = IDGND + IQ IOUT1 = IOUT2 = IOUT3= 0 mA 75 150 μA IAGND ISHDN Shutdown supply current VEN1 = VEN2 = VEN3 = 0 V 0.05 3 μA TA = 25°C 1.4 Enable high, enabled VIH1, 2 V (EN1, EN2) TA = Full Range 1.45 TA = 25°C 1.14 VIH3 Enable High, enabled (EN3) V TA = Full Range 1.2 Enable low, shutdown VILX 0 0.3 V (EN1, EN2, EN3) Enable pin current (EN1, EN2, IENX 0.01 0.5 μA EN3) Buck Controllers 1 and 2 VOUT1,2 Adjustable output voltage Range(2) VFBX VINX V VFB1,2 Feedback voltage (FB1, FB2) 1.22 V Feedback voltage accuracy(1) ±2% (FB1, FB2) IFB1,2 Current into FB1, FB2 pins 0.01 0.5 μA TA = 25°C 80 120 Reference voltage for current VIS1,2 100 mV sense TA = Full Range 75 125 IIS1,2 Current into IS1, IS2 pins 0.01 0.5 μA Measured with the circuit in Figure 2, ΔVOUT%/ΔVIN Line regulation(1) 0.1 % / V VOUT + 0.5 V ≤ VIN ≤ 6.5 V Measured with the circuit in Figure 2, ΔVOUT%/ΔIOUT Load regulation 0.6 % / A 30 mA ≤ I OUT ≤ 2 A Measured with the circuit in Figure 2, n 1,2 Efficiency(3) 94% IOUT = 1 A Measured with the circuit in Figure 2, tSTR1,2 Startup time(3) RL = 6 Ω, COUT = 100 μF, CSS = 2.2 5 ms nF VIN1,2 > 2.5 V 4 Gate driver P-Channel and RDS,ON1,2 Ω N-Channel MOSFET on-resistance V IN1,2 = 2.2 V 6 Gate Driver P-Channel and ISW1,2 100 mA N-Channel MOSFET drive current tON Minimum on time 1.36 1.55 1.84 μs tOFF Minimum off time 0.44 0.65 0.86 μs (1) To be in regulation, minimum VIN1 (or VIN2) must be greater than VOUT1,NOM (or VOUT2,NOM) by an amount determined by external components. Minimum VIN3 = VOUT3 + VDO or 2.2 V, whichever is greater. (2) Maximum VOUT is dependent on external components and will be less than VIN. Parameter is not production tested. (3) Depends on external components. 4 Copyright © 2006–2011, Texas Instruments Incorporated Product Folder Link(s): TPS75003-EP |
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