LT3216 Linear Technology, LT3216 Datasheet
LT3216
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LT3216 Summary of contents
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... LED current source and switching modes only when I LED a small 3mm 4mm 12-Lead DFN package. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. *Protected by U.S. Patents including 6411531. C CPO 4 ...
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LTC3216 ABSOLUTE AXI U RATI GS (Note GND ................................................ –0.3V to 5.5V IN CPO to GND .............................................. –0.3V to 5.5V EN2, EN1 ......................................... –0. (Note 2) ........................................... 1500mA CPO ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T PARAMETER SET1 SET2 ISET1 ISET2 ISET1 ISET2 Note 1: Absolute Maximum Ratings are those values beyond which the life of a device ...
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LTC3216 W U TYPICAL PERFOR A CE CHARACTERISTICS Input Shutdown Current vs Input Voltage 4 – 2.0 1.5 1.0 0.5 0 3.7 2.9 ...
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CTIO – – (Pins 1, 2, 10, 12): Charge Pump Flying Capacitor Pins. A 2.2 F X5R or X7R ceramic capacitor should be connected from ...
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LTC3216 U OPERATIO The LTC3216 uses a fractional switched capacitor charge pump to power a high current LED with a programmed regulated current. The part starts up into the 1x mode. In this mode directly connected to CPO. ...
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U OPERATIO – Figure 1. Charge Pump Open-Loop Thevenin-Equivalent Circuit R is dependent on a number of factors including OL the oscillator frequency, flying capacitor values and switch resistances. From Figure 1, ...
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LTC3216 U U APPLICATIO S I FOR ATIO V , CPO Capacitor Selection IN The style and value of capacitors used with the LTC3216 determine several important parameters such as regulator control loop stability, output ripple, charge pump strength and ...
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U U APPLICATIO S I FOR ATIO o o from – whereas a Z5U or Y5V style capacitor will lose considerable capacitance over that range. Z5U and Y5V capacitors may also have a very poor ...
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LTC3216 U TYPICAL APPLICATIO S Similarly boost mode, the efficiency is similar to that of a linear regulator with an effective input voltage of 2 times the actual input voltage ideal 2x charge pump, the power ...
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... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U ...
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... I <1 A OUT(MAX 35V 0.9mA OUT(MAX 5.5V 50uA, I <1 A OUT(MAX 5.5V 50uA, I <1 A OUT(MAX 2.7V to 4.5V 2.5mA, I <6 A IN(MAX 40V 1.2mA, I <1 A OUT(MAX 40V 5mA, I <1 A OUT(MAX LT/LT 0305 REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2004 3216fa ...