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Power Management ICs

Power Management ICs (PMICs) are integrated circuits (or a system block in a system-on-a-chip device) for managing power requirements of the host system. A PMIC is often included in battery operated devices such as mobile phones and portable media players.Many modern electronic devices have multiple internal voltages and sources of external power. Common voltages for electronics are 5V, 3.3V, 1.8V, etc. Many modern gadgets also have various sources of power to charge their batteries including USB.[1] Power Management IC is a generic term for a class of integrated circuits, that perform the various functions related to the power requirements.
DC/DC   converter

DC/DC converter

Ricoh DC/DC converter
Li-ion/polymer Battery Protection ICs

Li-ion/polymer Battery Protection ICs

Ricoh's Li-ion/polymer battery protection ICs have been released to the market since 1995, when the
Microcontroller Supervisory ICs

Microcontroller Supervisory ICs

Ricoh Microcontroller Supervisory ICs.
Switch  ICs

Switch ICs

As for both portable and non-portable devices, electrical equipment are requested to minimise curre
Voltage Regulator

Voltage Regulator

A voltage regulator is designed to automatically maintain a constant voltage level. A voltage regula
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