Linear Technology LT3150 Manuals

LINEAR LT3150 handbook

The LT3150 is a fast transient response, low input voltage, very low dropout linear regulator controller. It is suitable for applications such as microprocessors, ASICs, and I/O supplies, logic termination supplies, etc. Its transient response is optimized with ceramic output capacitors and has a very low dropout voltage. By selecting the N-channel MOSFET RDS(ON), dropout voltages below 300mV can be achieved for low VIN to low VOUT applications. The LT3150 also includes a fixed frequency boost converter that generates gate drive for the N-channel MOSFET. The internally compensated current mode PWM architecture combined with the 1.4MHz switching frequency allows the use of tiny, low-cost capacitors and inductors. The LT3150 features a multifunction LDO shutdown pin with latchoff. The fixed frequency 1.4MHz boost converter generates MOSFET gate drive. The independent boost converter shutdown control permits LDO output voltage supply sequencing. The LT3150 is available in a 16-lead SSOP package.