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LTC1265-3.3 Datasheet(PDF) 2 Page - Linear Technology |
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LTC1265-3.3 Datasheet(HTML) 2 Page - Linear Technology |
2 / 16 page 2 LTC1265/LTC1265-3.3/LTC1265-5 The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 10V, VSHDN = 0V, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IFB Feedback Current into Pin 9 LTC1265 0.2 1 µA VFB Feedback Voltage LTC1265C q 1.22 1.25 1.28 V VIN = 9V, LTC1265I q 1.20 1.25 1.30 V VOUT Regulator Output Voltage LTC1265-3.3: ILOAD = 800mA q 3.22 3.3 3.40 V LTC1265-5: ILOAD = 800mA q 4.9 5 5.2 V ∆VOUT Output Voltage Line Regulation VIN = 6.5V to 10V, ILOAD = 800mA –40 0 40 mV Output Voltage Load Regulation LTC1265-3.3: 10mA < ILOAD < 800mA 40 65 mV LTC1265-5: 10mA < ILOAD < 800mA 60 100 mV Burst Mode Operation Output Ripple ILOAD = 0mA 50 mVP-P IQ Input DC Supply Current (Note 3) Active Mode: 3.5V < VIN < 10V 1.8 2.4 mA Sleep Mode: 3.5V < VIN < 10V 160 230 µA Sleep Mode: 5V < VIN < 10V (LTC1265-5) 160 230 µA Shutdown: VSHDN = VIN, 3.5V < VIN < 10V 5 15 µA VLBTRIP Low-Battery Trip Point 1.15 1.25 1.35 V ILBIN Current into Pin 4 0.5 µA ILBOUT Current Sunk by Pin 3 VLBOUT = 0.4V, VLBIN = 0V 0.5 1.0 1.5 mA VLBOUT = 5V, VLBIN = 10V 1.0 µA V8 – V7 Current Sense Threshold Voltage LTC1265: VSENSE – = 5V, V9 = VOUT/4 + 25mV (Forced) 25 mV VSENSE– = 5V, V9 = VOUT/4 – 25mV (Forced) 130 150 180 mV LTC1265-3.3: VSENSE– = VOUT + 100mV (Forced) 25 mV VSENSE – = VOUT – 100mV (Forced) 130 150 180 mV LTC1265-5: VSENSE– = VOUT + 100mV (Forced) 25 mV VSENSE– = VOUT – 100mV (Forced) 130 150 180 mV RON ON Resistance of Switch LTC1265C q 0.3 0.60 Ω LTC1265I 0.3 0.70 Ω I5 CT Pin Discharge Current VOUT in Regulation, VSENSE– = VOUT 40 60 100 µA VOUT = 0V 2 10 µA tOFF Switch Off Time (Note 4) CT = 390pF, ILOAD = 800mA (LTC1265C) q 456 µs CT = 390pF, ILOAD = 800mA (LTC1265I) q 3.5 5 7 µs Input Supply Voltage (Pins 1, 2, 13) ..........– 0.3V to 13V DC Switch Current (Pin 14) .................................... 1.2A Peak Switch Current (Pin 14) ................................. 1.6A Switch Voltage (Pin 14) .................................. VIN – 13.0 Operating Temperature Range LTC1265C ............................................... 0 ° to 70°C LTC1265I ........................................ – 40 °C to 85°C Junction Temperature (Note 2) ............................. 125 °C Storage Temperature Range ....................– 65 ° to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C (Voltages Refer to GND Pin) (Note 1) ORDER PART NUMBER LTC1265CS LTC1265CS-5 LTC1265CS-3.3 LTC1265IS Consult factory for Military grade parts. TOP VIEW S PACKAGE 14-LEAD PLASTIC SO *ADJUSTABLE OUTPUT VERSION TJMAX = 125°C, θJA = 110°C/W 1 2 3 4 5 6 7 14 13 12 11 10 9 8 PWR VIN VIN LBOUT LBIN CT ITH SENSE– SW PWR VIN PGND SGND SHDN N/C (VFB*) SENSE+ ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO ELECTRICAL CHARACTERISTICS |
Similar Part No. - LTC1265-3.3_15 |
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Similar Description - LTC1265-3.3_15 |
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