ltc1503-2 Linear Technology Corporation, ltc1503-2 Datasheet
ltc1503-2
Related parts for ltc1503-2
ltc1503-2 Summary of contents
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... F bypass capacitors) make the LTC1503-1.8/LTC1503-2 ideally suited for space con- strained battery-powered applications. The parts are fully short-circuit and overtemperature protected. The LTC1503-1.8/LTC1503-2 are available in 8-pin MSOP and SO packages. , LTC and LT are registered trademarks of Linear Technology Corporation. LTC1503-2 ...
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... MS8 PART MARKING LTFX 8-LEAD PLASTIC SO T LTHN JMAX = unless otherwise noted. IN OUT CONDITIONS LTC1503-1.8, 0mA < I < 100mA OUT LTC1503-2, 0mA < I < 100mA OUT I = 0mA OUT SHDN/ LTC1503- 3.6V 100mA IN OUT LTC1503- 3.6V 100mA IN OUT Oscillator Free Running ...
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... C A 1.75 1. INPUT VOLTAGE (V) 1503-1.8/2 TA02 LTC1503-1.8 Efficiency vs Output Current 100 0.01 0 OUTPUT CURRENT (mA) 1503-1.8/2 G05 LTC1503-2 Output Voltage vs Output Current 2. 3. – 1.96 1.94 1000 0.01 0 OUTPUT CURRENT (mA) 1503-1.8/2 G08 T = – ...
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... LTC1503-1.8/LTC1503 TYPICAL PERFOR A CE CHARACTERISTICS LTC1503-X Output Short-Circuit Current vs Input Voltage 40 V SHORTED TO GND OUT – INPUT VOLTAGE (V) Output Load Transient Response (LTC1503-1.8,1mA to 100mA Step) 100mA I OUT 50mA/DIV 1mA V OUT 50mV/DIV AC COUPLED 1ms/DIV 1503-1 ...
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... Flying Capacitor Two Negative Terminal. MODE CONTROL V OUT SHORT CIRCUIT MODE SKIP COMP2 REG ENABLE 600kHz OSCILLATOR COMP1 – SOFT-START 350mV + + SHDN + C1 – C1 STEP-DOWN CHARGE + PUMP C2 – OUT C OUT – 150mV 800k – + 10mV + – + 1.2M V RAMP REF 1.2V V REF GND LTC1503-2 1503-1.8 ...
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... LTC1503-1.8/LTC1503 APPLICATIO S I FOR ATIO General Operation The two most common methods for providing regulated step-down DC/DC conversion are linear DC/DC conversion (used by LDOs) and inductor-based DC/DC conversion. Linear regulation provides low cost and low complexity, but the conversion efficiency is poor since all of the load cur- rent must come directly from V ...
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... SHDN/SS pin (minus a IN OUT 0.35V offset to account for the SHDN threshold) until the reference reaches its final band gap voltage. This occurs when the voltage on the SHDN/SS pin reaches LTC1503-1.8/LTC1503 OUT equals 4.1V with greater than 90% effi- IN ...
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... V OUT 1V/DIV LTC1503-2 2ms/DIV C = 0nF OUT ( LOAD V CTRL 2V/DIV V OUT 1V/DIV LTC1503-2 2ms/DIV C = 4.7nF OUT LOAD (c) Figure 2. Shutdown/Soft-Start Operation Capacitor Selection , the average inrush For best performance recommended that low ESR and SS capacitors be used for C ripple ...
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... GND pin and all bypass capacitors to an uninterrupted 10 F ground plane is also advised. See Figure 4 for recom- TANTALUM 1503-1.8/2 F03 mended component placement and grounding. Figure 4. Recommended Component Placement and Grounding LTC1503-1.8/LTC1503-2 reaches 0.7V (typ). The part can OUT to GND. OUT and C , must be as ...
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... LTC1503-1.8/LTC1503-2 PACKAGE DESCRIPTIO 0.007 (0.18) * DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ...
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... TYP 0.014 – 0.019 (0.355 – 0.483) TYP LTC1503-1.8/LTC1503 0.150 – 0.157** (3.810 – 3.988 0.004 – 0.010 (0.101 – 0.254) 0.050 (1 ...
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... LTC1503-1.8/LTC1503-2 U TYPICAL APPLICATIO 1-CELL Li-Ion OR 3-CELL NiMH ON OFF RELATED PARTS PART NUMBER DESCRIPTION LTC1474/LTC1475 Low Quiescent Current Step-Down DC/DC Converter LTC1502-3.3 Single Cell to 3.3V Quadrupler Charge Pump LTC1514/LTC1515 Micropower, Regulated 5V Step-Up/Step-Down Charge Pump DC/DC Converters LTC1555/LTC1556 SIM Power Supply and Level Translator ...