Linear's 1.2A-switching regulator with programmable output current limit

Linear Technology has introduced the LT3663, a 1.2A, 1.5MHz monolithic current mode step-down switching regulator with a programmable output current limit. Its operating voltage of 7.5V to 36V makes the LT3663 ideal for a variety of input sources, including unregulated 12V wall adapters, 24V industrial supplies, Fire Wire, as well as automotive applications. Onboard input overvoltage lockout protects the device through input transients as high as 60V, such as those commonly found in automotive applications.

The LT3663's output voltage/current are adjustable. Output voltage 0.8V are set by a resistor divider whereas its output current is user programmable between 0.4A to 1.2A via an external resistor. The LT3663 utilizes a 1.5MHz oscillator, internal compensation and an internal boost diode to minimize the overall solution footprint.

Other features are,

Low Switch VCESAT: 275mV at 1A
Thermal Protection

LT3663IDCB operating temperature: -40°C to 125°C
Package: 2mm x 3mm DFN package
Price:
LT3663EDCB: Each $2.50 for 1k pieces
LT3663IDCB: Each $2.94 for 1k pieces
Availability: Now
For more details visit www.linear.com.

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