Part Number : LT3667
Function : Iq= 50uA at 12Vin to 5V, 3.3V and 2.5V with No Load / 40V 400mA Step-Down Switching Regulator with Dual Fault Protected LDOs
Manufacturers : Linear Technology
The LT3667 isa monolithic triple power supply composed of a400mA buck switching regulator and two200mA low dropout linear regulators (LDOs).
The buck regulator includes a high efficiency switch, a boost diode, and the necessary oscillator, control and logic circuitry. Current mode topology is used for fast transient response and good loop stability. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping output ripple below15mV in a typical application.
Each LDO supplies200mA of output current with a typical dropout voltage of340mV, and each LDO has an accurate resistor programmable current limit.
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