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EL7554 Datasheet(PDF) 3 Page - Intersil Corporation |
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EL7554 Datasheet(HTML) 3 Page - Intersil Corporation |
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3 / 14 page  3 FN7360.4 May 8, 2006 IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA Absolute Maximum Ratings (TA = 25°C) VIN, VDD to SGND. . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V VX to PGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN +0.3V SGND to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V COMP, VREF, FB, VO, VTJ, TM, SEL, PG, EN, STP, STN, COSC to SGND . . . . . -0.3V to VDD +0.3V Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C Ambient Operating Temperature . . . . . . . . . . . . . . . . -40°C to +85°C CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. DC Electrical Specifications VDD = VIN = 3.3V, TA = TJ = 25°C, COSC = 390pF, Unless Otherwise Specified PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT VIN Input Voltage Range 3 6 V VREF Reference Accuracy 1.24 1.26 1.28 V VREFTC Reference Temperature Coefficient 50 ppm/°C VREFLOAD Reference Load Regulation 0 < IREF < 50µA -1 % VRAMP Oscillator Ramp Amplitude 1.15 V IOSC_CHG Oscillator Charge Current 0.1V < VOSC < 1.25V 200 µA IOSC_DIS Oscillator Discharge Current 0.1V < VOSC < 1.25V 8 mA IVDD VDD Supply Current VEN = 1 (L disconnected) 2 2.7 5 mA IVDD_OFF VDD Standby Current EN = 0 1 1.5 mA VDD_OFF VDD for Shutdown 2.4 2.65 V VDD_ON VDD for Startup 2.6 2.95 V TOT Over-temperature Threshold 135 °C THYS Over-temperature Hysteresis 20 °C ILEAK Internal FET Leakage Current EN = 0, LX = 6V (low FET), LX = 0V (high FET) 10 µA ILMAX Peak Current Limit 6A RDSON1 PFET On Resistance 35 70 m Ω RDSONTC2 NFET On Resistance 30 60 m Ω RDSONTC RDSON Tempco 0.2 m Ω/°C ISTP STP Pin Input Pull-down Current VSTP = VIN/2 -4 2.5 µA ISTN STN Pin Input Pull-up Current VSTN = VIN/2 2.5 4 µA VPGP Positive Power Good Threshold With respect to target output voltage 6 14 % VPGN Negative Power Good Threshold With respect to target output voltage -14 -6 % VPG_HI Power Good Drive High IPG = 1mA 2.6 V VPG_LO Power Good Drive Low IPG = -1mA 0.5 V VOVP Output Over-voltage Protection 10 % VFB Output Initial Accuracy ILOAD = 0A 0.79 0.8 0.81 V VFB_LINE Output Line Regulation VIN = 3.3V, ΔVIN = 10%, ILOAD = 0A 0.2 0.5 % GMEA Error Amplifier Transconductance VCC = 0.65V 85 125 165 µs VFB_TC Output Temperature Stability 0°C < TA < 85°C, ILOAD = 3A ±1 % FS Switching Frequency 300 370 440 kHz IFB Feedback Input Pull-up Current VFB = 0V 100 200 nA EL7554 |
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