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PI3546-00-LGIZ Datasheet(PDF) 9 Page - Vicor Corporation |
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PI3546-00-LGIZ Datasheet(HTML) 9 Page - Vicor Corporation |
9 / 37 page ![]() Cool-Power® Rev 1.3 vicorpower.com Page 9 of 37 02/2016 800 927.9474 PI354x-00 PI3542-00 (2.5 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 340 nH [1] unless other conditions are noted. Parameter Symbol Conditions Min Typ Max Unit Sync Out (SYNCO) SYNCO High VSYNCO_HI Source 1 mA VVDR –0.5 V SYNCO Low VSYNCO_LO Sink 1 mA 0.5 V SYNCO Rise Time tSYNCO_RT 20 pF load 10 ns SYNCO Fall Time tSYNCO_FT 20 pF load 10 ns Soft Start, Tracking and Error Amplifier TRK Active Range (Nominal) VTRK 0 1.08 V TRK Enable Threshold VTRK_OV 20 40 60 mV TRK to EAIN Offset VEIAN_OV 50 80 110 mV Charge Current (Soft – Start) ITRK -70 -50 -30 µA Discharge Current (Fault) ITRK_DIS VTRK = 0.5 V 10 mA Soft-Start Time tSS CTRK = 0 0.6 .94 1.6 mS Error Amplifier Trans-Conductance GMeao [2] 5.1 ms PSM Skip Threshold PSMSKIP [2] 0.8 V Error Amplifier Output Impedance ROUT [2] 1 MOhm Internal Compensation Capacitor Chf [2] 56 pf Internal Compensation Resistor Rzi [2] 5k Ohm Enable High Threshold VEN_HI 0.9 1 1.1 V Low Threshold VEN_LO 0.7 0.8 0.9 V Threshold Hysteresis VEN_HYS 100 200 300 mV Enable Pull-Up Voltage (floating, no faulted) VEN_PU 2 V Enable Pull-Down Voltage (floating, fault) VEN_PD 0 V Source Current IEN_SO -50 µA Sink Current IEN_SK 50 µA [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves. |
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