DESCRIPTION
The LT®3150 drives a low cost external N-channel MOSFET as a source follower to produce a fast transient response, very low dropout voltage linear regulator. Selection of the N-channel MOSFET RDS(ON)allows dropout voltages below 300mV for low VIN to low VOUT applications.
FEATURES
■ Fast Transient Response Optimized with
Ceramic Output Capacitors
■ FET RDS(ON) Defines Dropout Voltage
■ ±1% Reference Tolerance Over Temperature
■ Multifunction LDO Shutdown Pin with Latchoff
■ Fixed Frequency 1.4MHz Boost Converter Generates
MOSFET Gate Drive
■ Internally Compensated Boost Converter Uses Tiny
Capacitors and Inductor
■ Independent Boost Converter Shutdown Control
Permits LDO Output Voltage Supply Sequencing
■ 16-Lead SSOP Package
APPLICATIONS
■ Microprocessor, ASIC and I/O Supplies
■ Very Low Dropout Input-to-Output Conversion
■ Logic Termination Supplies
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