LT3489EMS8E#TRPBF

LT3489 is a fixed frequency step-up DC/DC converter containing an internal 2.5A, 40V switch. It is ideal for large TFT-LCD panel power supplies. The device switches at 2MHz, allowing the use of tiny, low profile inductors and low value ceramic capacitors. Loop compensation can be either internal or external, giving the user flexibility in setting loop compensation and allowing optimized transient response with low ESR ceramic output capacitors. Soft-start is controlled with an external capacitor, which determines the input current ramp rate during start-up. It is widely used in application such as TFT-LCD bias supplies, GPS receivers, DSL modems, local power supply etc.

• Switching frequency is 2MHz typical
• Operating input voltage range is 2.6V to 16V
• Adjustable output from VIN to 40V
• Low VCESAT switch is 110mV at 1A typical
• 8V at 610mA from a 3.3V input
• Internal or external loop compensation
• Switch current limit is 3.5A typical
• Quiescent current is 2mA typical at (VSHDN = 2.5V, not switching)
• Quiescent current in shutdown is 1μA maximum at (VSHDN = 0V, VIN = 3V)
• Operating temperature is -40°C to 85°C, package style is 8-lead plastic MSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party