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LTC3803-5 Datasheet(PDF) 2 Page - Linear Technology |
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LTC3803-5 Datasheet(HTML) 2 Page - Linear Technology |
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2 / 12 page  2 LTC3803-5 38035f ORDER PART NUMBER (Note 1) VCC to GND (Current Fed) .................... 25mA into VCC* NGATE Voltage ......................................... – 0.3V to VCC VFB, ITH/RUN Voltages ..............................–0.3V to 3.5V SENSE Voltage ........................................... – 0.3V to 1V NGATE Peak Output Current (<10µs) ........................ 1A Operating Junction Temperature Range (Note 2) LTC3803E-5 ....................................... – 40°C to 85°C LTC3803H-5 (Note 3) ....................... – 40°C to 150°C Storage Temperature Range ................. – 65°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C LTC3803HS6-5 LTC3803ES6-5 TJMAX = 150°C, θJA = 165°C/W ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VTURNON VCC Turn On Voltage ● 4 4.8 5.7 V VTURNOFF VCC Turn Off Voltage ● 3.3 4 4.9 V VHYST VCC Hysteresis VTURNON – VTURNOFF ● 0.05 0.8 V VCLAMP1mA VCC Shunt Regulator Voltage ICC = 1mA, VITH/RUN = 0V ● 6.2 8 9.9 V VCLAMP25mA VCC Shunt Regulator Voltage ICC = 25mA, VITH/RUN = 0V ● 6.3 8.1 10.3 V ICC Input DC Supply Current (Note 4) Normal Operation VITH/RUN = 1.3V 240 350 µA Undervoltage VCC = VTURNON – 100mV ● 40 90 µA VITHSHDN Shutdown Threshold (at ITH/RUN) VCC = VTURNON + 100mV ● 0.12 0.28 0.45 V IITHSTART Start-Up Current Source VITH/RUN = 0V ● 0.07 0.34 0.8 µA VFB Regulated Feedback Voltage 0°C ≤ TJ ≤ 85°C (Note 5) 0.788 0.800 0.812 V –40°C ≤ TJ ≤ 85°C (Note 5) ● 0.780 0.800 0.816 V gm Error Amplifier Transconductance ITH/RUN Pin Load = ±5µA (Note 5) 200 333 500 µA/V ∆VO(LINE) Output Voltage Line Regulation VTURNOFF < VCC < VCLAMP (Note 5) 0.1 mV/V ∆VO(LOAD) Output Voltage Load Regulation ITH/RUN Sinking 5µA (Note 5) 3 mV/µA ITH/RUN Sourcing 5µA (Note 5) 3 mV/µA IFB VFB Input Current (Note 5) 10 50 nA fOSC Oscillator Frequency VITH/RUN = 1.3V 170 200 230 kHz DCON(MIN) Minimum Switch On Duty Cycle VITH/RUN = 1.3V, VFB = 0.8V 6.5 8.5 % DCON(MAX) Maximum Switch On Duty Cycle VITH/RUN = 1.3V, VFB = 0.8V 70 80 90 % tRISE Gate Drive Rise Time CLOAD = 3000pF 40 ns tFALL Gate Drive Fall Time CLOAD = 3000pF 40 ns VIMAX Peak Current Sense Voltage RSL = 0 (Note 6) ● 90 100 115 mV ISLMAX Peak Slope Compensation Output Current (Note 7) 5 µA tSFST Soft-Start Time 0.7 ms LTC3803E-5: The ● indicates specifications which apply over the full –40°C to 85°C operating junction temperature range, otherwise specifications are at TJ = 25°C. VCC = 5V, unless otherwise noted. (Note 2) LTBMH LTBPF Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS ITH/RUN 1 GND 2 VFB 3 6 NGATE 5 VCC 4 SENSE TOP VIEW S6 PACKAGE 6-LEAD PLASTIC TSOT-23 *LTC3803-5 internal clamp circuit self regulates VCC voltage to 8V. S6 PART MARKING |
Similar Part No. - LTC3803-5 |
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Similar Description - LTC3803-5 |
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