LT3489 Series

2MHz Boost DC/DC Converter with 2.5A Switch and Soft-Start

Catalog

2MHz Boost DC/DC Converter with 2.5A Switch and Soft-Start

Part	Number of Outputs	Synchronous Rectifier	Current - Output	Voltage - Output (Min/Fixed)	Output Type	Output Configuration	Topology	Package / Case	Package / Case [custom]	Function	Voltage - Input (Max) [Max]	Supplier Device Package	Voltage - Input (Min) [Min]	Frequency - Switching	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Voltage - Output (Max) [Max]
Analog Devices LT3489EMS8E#TRPBF	1		2.5 A	2.6 V	Adjustable	Positive	Boost	8-MSOP 8-TSSOP Exposed Pad	0.118 in 3 mm	Step-Up	16 V	8-MSOP-EP	2.6 V	2 MHz	85 °C	-40 °C	Surface Mount	40 V
Analog Devices LT3489EMS8E#PBF	1		2.5 A	2.6 V	Adjustable	Positive	Boost	8-MSOP 8-TSSOP Exposed Pad	0.118 in 3 mm	Step-Up	16 V	8-MSOP-EP	2.6 V	2 MHz	85 °C	-40 °C	Surface Mount	40 V

Catalog

2MHz Boost DC/DC Converter with 2.5A Switch and Soft-Start

Key Features

• 2.5A, 0.12Ω, 40V Internal Switch

• 2MHz Switching Frequency

• Integrated Soft-Start Function

• VINRange: 2.6V to 16V

• Adjustable Output from VINto 40V

• Low VCESATSwitch: 110mV at 1A (Typical)

• 8V at 610mA from a 3.3V Input

• Internal or External Loop Compensation

• Small 8-Lead MS8E

Description

The LT3489 is a ﬁxed frequency step-up DC/DC converter containing an internal 2.5A, 40V switch. The LT3489 is ideal for large TFT-LCD panel power supplies. The LT3489 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.The 8-lead MS8E package and high switching frequency ensure a low proﬁle overall solution less than 1.1mm high.ApplicationsTFT-LCD Bias SuppliesGPS ReceiversDSL ModemsLocal Power Supply