MFG:AME, Inc. Package Cooled:SOT23-5 D/C:04+
MFG: AME, Inc.
Package Cooled: SOT23-5
D/C: 04+
Description: The RT9271 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant curr...
The RT9271 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive one to four LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The RT9271 switches at 1.1 MHz, allowing the use of tiny external components. The input and output capacitor can be as small as 1uF, saving space and cost versus alternative solutions. A low 0.25V feedback voltage minimizes power loss in the current setting resistor for better efficiency.
The RT9271 is available in low profile SOT26 package.
RT9271
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