Monolithic Power Systems Inc. MP3414DJ-LF-Z

Description
The MP3414 is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect. It can start up from an input voltage as low as 0.8V, providing inrush current limiting and output short-circuit protection. The integrated, P-channel, synchronous rectifier improves efficiency and eliminates the need for an external Schottky diode. The PMOS disconnects the output from the input when the part shuts down, allowing the output to be completely discharged and the part to draw a 1μA supply current in shutdown mode.
The 1MHz switching frequency allows for smaller external components, while the internal compensation and soft-start minimize the external component count. These features help produce a compact solution for a wide current load range.
The MP3414 features an integrated power MOSFET that supports up to a 4V output and a typical 1.8A peak switching current. It is available in a small 8-pin TSOT23 package.

Features
Up to 96% efficiency
0.8V low voltage start-up
0.6V-to-4V input range
1.8V-to-4V output range
Internal synchronous rectifier
1MHz fixed-frequency switching
35μA quiescent current
1μA shutdown current
Current-mode control with internal compensation
True output disconnect from input
VIN VOUT down mode operation
High efficiency under light-load conditions
Very small external components
Inrush current limiting and internal soft-start
Over-voltage protection
Short-circuit protection
TSOT23-8 package

Applications
Battery-powered products
Personal medical devices
Portable media players
Wireless peripherals
Handheld computers and smartphones