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LTC1149 Datasheet(PDF) 2 Page - Linear Technology |
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LTC1149 Datasheet(HTML) 2 Page - Linear Technology |
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2 / 20 page  2 LTC1149 LTC1149-3.3/LTC1149-5 A G A U A R BSOLUTEXI TI S PACKAGE/ORDER I FOR ATIO Input Supply Voltage (Pin 2)...................... – 15V to 60V VCC Output Current (Pin 3) .................................. 50mA VCC Input Voltage (Pin 5)........................................ 16V Continuous Output Current (Pins 4, 13) .............. 50mA Sense Voltages (Pins 8, 9) VIN ≥ 12.7V .......................................... 13V to –0.3V VIN < 12.7V............................. (VCC + 0.3V) to –0.3V Shutdown Voltages (Pins 10, 15) ............................. 7V Operating 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 ELECTRICAL C C HARA TERISTICS T A = 25°C, VIN = 12V, V10 = 0V (Note 2), unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V10 Feedback Voltage (LTC1149 Only) VIN = 9V q 1.21 1.25 1.29 V I10 Feedback Current (LTC1149 Only) q 0.2 1 µA VOUT Regulated Output Voltage VIN = 9V LTC1149-3.3 ILOAD = 700mA q 3.23 3.33 3.43 V LTC1149-5 ILOAD = 700mA q 4.9 5.05 5.2 V ∆VOUT Output Voltage Line Regulation VIN = 9V to 48V, ILOAD = 50mA – 40 0 40 mV Output Voltage Load Regulation LTC1149-3.3 5mA < ILOAD < 2A q 40 65 mV LTC1149-5 5mA < ILOAD < 2A q 60 100 mV Burst Mode Output Ripple ILOAD = 0A 50 mVP-P I2 Input DC Supply Current (Note 3) Normal Mode VIN = 12V 2.0 2.8 mA VIN = 48V 2.2 3.0 mA Burst Mode VIN = 12V 0.6 0.9 mA VIN = 48V 0.8 1.1 mA Shutdown VIN = 12V, V15 = 2V 135 170 µA VIN = 48V, V15 = 2V 300 390 µA VCC Internal Regulator Voltage VIN = 12V to 48V q 9.75 10.25 11 V (Sets MOSFET Gate Drive Levels) I3 = 20mA V2 – V3 VCC Dropout Voltage VIN = 5V, I3 = 10mA 200 250 mV VIN – V1 P-Gate to Source Voltage (Off) VIN = 12V q – 0.2 0 V VIN = 48V q – 0.2 0 V LTC1149CN LTC1149CN-3.3 LTC1149CN-5 LTC1149CS LTC1149CS-3.3 LTC1149CS-5 ORDER PART NUMBER Consult factory for Industrial and Military grade parts. 1 2 3 4 5 6 7 8 TOP VIEW S PACKAGE 16-LEAD PLASTIC SO N PACKAGE 16-LEAD PDIP 16 15 14 13 12 11 10 9 PGATE VIN VCC PDRIVE VCC CT ITH SENSE– CAP SHDN2 RGND NGATE PGND SGND SENSE+ *FIXED OUTPUT VERSIONS VFB / SHDN1* TJMAX = 125°C, θJA = 70°C/ W (N) TJMAX = 125°C, θJA = 110°C/ W (S) |
Similar Part No. - LTC1149_15 |
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Similar Description - LTC1149_15 |
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