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LTC1553CSW Datasheet(PDF) 2 Page - Linear Technology |
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LTC1553CSW Datasheet(HTML) 2 Page - Linear Technology |
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2 / 24 page  2 LTC1553 ABSOLUTE MAXIMUM RATINGS ORDER PART NUMBER (Note 1) Supply Voltage VCC ........................................................................ 9V PVCC ................................................................... 20V Input Voltage IFB (Note 2)............................................ PVCC + 0.3V IMAX ...................................................... – 0.3V to 13V All Other Inputs ......................... – 0.3V to VCC + 0.3V Digital Output Voltage ............................... – 0.3V to 13V IFB Input Current (Notes 2, 3) .......................... – 100mA Operating Temperature Range ..................... 0 °C to 70°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec.)................. 300 °C PACKAGE/ORDER INFORMATION VCC = 5V, PVCC = 12V, TA = 25°C, unless otherwise noted. (Note 3) ELECTRICAL CHARACTERISTICS Consult factory for Industrial and Military grade parts. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Supply Voltage q 4.5 8 V PVCC Supply Voltage for G1, G2 q 18 V VFB Internal Feedback Voltage (Note 4) 1.265 V VOUT 1.8V Initial Output Voltage With Respect to Rated Output Voltage (Figure 2) – 27 (– 1.5%) 27 (+ 1.5%) mV 2.8V Initial Output Voltage – 42 (– 1.5%) 42 (+ 1.5%) mV 3.5V Initial Output Voltage – 52 (– 1.5%) 52 (+ 1.5%) mV 1.8V Initial Output Voltage q – 36 (– 2%) 36 (+ 2%) mV 2.8V Initial Output Voltage q – 56 (– 2%) 56 (+ 2%) mV 3.5V Initial Output Voltage q – 70 (– 2%) 70 (+ 2%) mV ∆VOUT Output Load Regulation IOUT = 0 to 14A (Note 4) (Figure 2) – 5 mV Output Line Regulation VIN = 4.75V to 5.25V, IOUT = 0 (Note 4)(Figure 2) ±1mV VPWRGD Positive Power Good Trip Point % Above Output Voltage (Figure 2) q 57 % Negative Power Good Trip Point % Below Output Voltage (Figure 2) q –7 –5 % VFAULT FAULT Trip Point % Above Output Voltage (Figure 2) q 12 15 20 % ICC Operating Supply Current OUTEN = VCC = 5V (Note 5) (Figure 3) q 800 1200 µA Shutdown Supply Current OUTEN = 0, VID0 to VID4 Floating (Figure 3) q 130 250 µA IPVCC Supply Current PVCC = 12V, OUTEN = VCC (Note 6) (Figure 3) 15 mA PVCC = 12V, OUTEN = 0, VID0 to VID4 Floating 1 µA fOSC Internal Oscillator Frequency (Figure 4) q 250 300 350 kHz VSAWL VCOMP at Minimum Duty Cycle (Note 4) 1.8 V VSAWH VCOMP at Maximum Duty Cycle (Note 4) 2.8 V GERR Error Amplifier Open-Loop DC Gain (Note 7) q 40 53 dB gmERR Error Amplifier Transconductance (Note 7) q 0.9 1.6 2.3 millimho BWERR Error Amplifier –3dB Bandwidth COMP = Open (Note 4) 400 kHz TJMAX = 125°C, θJA = 100°C/ W (G) TJMAX = 125°C, θJA = 100°C/ W (SW) 1 2 3 4 5 6 7 8 9 10 TOP VIEW G PACKAGE 20-LEAD PLASTIC SSOP SW PACKAGE 20-LEAD PLASTIC SO 20 19 18 17 16 15 14 13 12 11 G2 PVCC GND SGND VCC SENSE IMAX IFB SS COMP G1 OUTEN VID0 VID1 VID2 VID3 VID4 PWRGD FAULT OT LTC1553CG LTC1553CSW |
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