IZ1937 Datasheet White LED Step-Up Converter

Manufacturer: Integral

Datasheet Details

The IZ1937 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current.

The device can drive two, three or four LEDs in series from a Li-Ion battery.

Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.

IZ1937 White LED Step-Up Converter (Functional equvalent of LT1937 Linear Technology.

Internally determined LED current.
High Efficiency: 84% Typical.
Drives Up to 4 LEDs from a 3.2V Supply.
Drives Up to 6 LEDs from a 5V Supply.
36V rugged bipolar switch.
Fast 1.2MHz switching frequency.
Uses tiny 1mm Tall Inductors.
Requires only 0.22uF output capacitor ICs are available for shipment in chip form on unsawn wafers Tab 1. Contact Pad.

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