Overview
HV9903 is listed in the Power Management category. Available datasheets include documents from Supertex, Inc.
Summary
White LED Driver
Description
The Supertex HV9903 is a fixed frequency DC-DC boost converter designed for driving Light Emitting Diodes (LEDs) with constant current where the light intensity is proportional to the current through them. The input supply voltage range into the device (VDD) is 2.6 to 4.6V. Operation of the driver at lower voltages is possible as long as a 2.6–4.6V low current supply is available for the HV9903. The device uses a single inductor and a minimum number of passive components. The device can be enabled/disabled via the SHDN pin.
Source title
HV9903 Datasheet(PDF) - Supertex, Inc