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LTC1266-5 Datasheet(PDF) 2 Page - Linear Technology |
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LTC1266-5 Datasheet(HTML) 2 Page - Linear Technology |
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2 / 20 page  2 LTC1266 LTC1266-3.3/LTC1266-5 A G A U A R BSOLUTEXI TI S Input Supply Voltage (Pins 2, 5) ............... 20V to – 0.3V Continuous Output Current (Pins 1, 16) .............. 50mA Sense Voltages (Pins 8, 9)........................ 13V to – 0.3V PINV, BINH, SHDN, LBIN (Pins 3, 4, 11, 13) ................................. 20V to – 0.3V LBOUT Output Current ........................................... 12mA Operating Ambient Temperature Range ...... 0 °C to 70°C Extended Commercial Temperature Range ........................... – 40 °C to 85°C Junction Temperature (Note 1) ............................ 125 °C Storage Temperature Range ................ – 65 °C to 150°C Lead Temperature (Soldering, 10 sec) ................. 300 °C PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER LTC1266CS LTC1266CS-3.3 LTC1266CS-5 LTC1266ACS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VFB Feedback Voltage VIN = 9V, ILOAD = 700mA, VPINV = VPWR, LTC1266ACS Topside Switch = N-Ch q 1.275 V LTC1266CS q 1.210 1.25 1.290 V IFB Feedback Current (LTC1266 Only) q 0.2 1 µA VOUT Regulated Output Voltage VIN = 9V, ILOAD = 700mA, VPINV = VPWR, LTC1266CS-3.3 Topside Switch = N-Ch, VPWR = 14V q 3.23 3.33 3.43 V LTC1266CS-5 q 4.90 5.05 5.20 V Output Ripple (Burst Mode Operation) ILOAD = 150mA 50 mVP-P ∆VOUT Output Voltage Line Regulation ILOAD = 50mA VPINV = 0V, Topside Switch = P-Ch, VIN = 7V to 12V –40 0 40 mV VPINV = VPWR, Topside Switch = N-Ch, VIN = 7V to 12V –40 0 40 mV Output Voltage Load Regulation 5mA < ILOAD < 2A, RSENSE = 0.05Ω LTC1266-3.3 Burst Mode Operation Enabled, VBINH = 0V q 40 65 mV LTC1266-3.3 Burst Mode Operation Inhibited, VBINH = 2V q 15 25 mV LTC1266-5 Burst Mode Operation Enabled, VBINH = 0V q 60 100 mV LTC1266-5 Burst Mode Operation Inhibited, VBINH = 2V q 25 40 mV IQ1 VIN Pin DC Supply Current (Note 2) Normal Mode 3.5V < VIN < 18V 2.1 3.0 mA Sleep Mode 3.5V < VIN < 18V 170 250 µA Shutdown VSHDN = 2.1V, 3.5V < VIN < 18V 25 50 µA IQ2 PWR VIN DC Supply Current (Note 2) Normal Mode 3.5V < PWR VIN < 18V 20 40 µA Sleep Mode 3.5V < PWR VIN < 18V 1 5 µA Shutdown VSHDN = 2.1V, 3.5V < PWR VIN < 18V 1 5 µA VSENSE 1 Current Sense Threshold VBINH = 0V (Burst Mode Operation Enabled) LTC1266 VSENSE– = 3.3V, VFB = VOUT/2.64 + 25mV (Forced) 25 mV VSENSE– = 3.3V, VFB = VOUT/2.64 – 25mV (Forced) q 135 155 175 mV LTC1266-3.3 VSENSE– = VOUT + 100mV (Forced) 25 mV VSENSE– = VOUT – 100mV (Forced) q 135 155 175 mV LTC1266-5 VSENSE– = VOUT + 100mV (Forced) 25 mV VSENSE– = VOUT – 100mV (Forced) q 135 155 175 mV TA = 25°C, VIN = 10V, VSHDN = VBINH = 0V unless otherwise noted. ELECTRICAL C C HARA TERISTICS TJMAX = 125°C, θJA = 110°C/ W Consult factory for Industrial and Military grade parts. TOP VIEW *FIXED OUTPUT VERSIONS S PACKAGE 16-LEAD PLASTIC SO TDRIVE PWR VIN PINV BINH VIN CT ITH SENSE– BDRIVE PGND LBOUT LBIN SGND SHDN VFB (NC*) SENSE+ 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 |
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