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Switch ICs

Aiming at saving energy, not only the battery-powered application, but all electronic equipment is required to consumption power limit according to each local standard. To save energy, instead of using LDO, switch IC for each circuit block is used after DC/DC converter.
Simple MOSFET can play the role as a switch, but load switch IC can include protection circuits, discharge function at off state, and a slew rate control circuit. As a result, saving space and intensive function realization are possible. Ricoh provides wide variety lineup of switch ICs with low on resistance MOSFET and protection circuits in one chip.

Switch IC Features

Category Product Description Typical Applications
USB Switch USB Power Line Protection
USB Power Line ON/OFF Control
USB Powered Application: PCs, PC Peripherals, Digital TVs, STBs, Printers, Smartphones
Rectifier Switch Output Rectifier Regardless of Input Polarity Toy and Healthcare Product Powered by Dry Cell
Load Switch Power Line ON/OFF Control and Distribution;
Secondary Power Supply Switch
Power-saving Required Equipment during Standby/ Sleep Mode:
Portable Communication Equipment, DSCs, DSVCs, PCs, MFPs
Battery Line Switch Battery Line Protection; Primary Power Supply Switch or Load Switch Secondary Battery Powered Equipment: Smartphones, Tablet PCs, PNDs, Notebook PCs It can be used as a load switch for any electronic equipment.
Intelligent Power Switch Power Line's Systematic Protection; Secondary Power Supply Switch Power-saving with High Protection Required Equipment during Standby/ Sleep Mode: Portable Communication Equipment, DSCs, DSVCs, PCs, MFPs
External Power Switch Several Power Line Switchover Control Power Selection Required Equipment: AC Adapters, USB Chargers, Wireless Charger
OVP Switch Overvoltage Protection for Input Pin Charger Protection for Secondary Battery-Powered Equipment
PC Card &
Express Card Power Switch
ON/OFF Control of PC Card Power Line PC Card Bus Slot, PC Card Reader Writer
ON/OFF Control of Express Card Power Line Express Card Slot

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Typical Application

Typical Applications for Portable Equipment and Non-Portable Equipment

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