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R1204K212A-TR

RICOH
Part Number R1204K212A-TR
Manufacturer RICOH
Description Step-up DC/DC Converter
Published Aug 27, 2019
Detailed Description R1204x Series Step-up DC/DC Converter with Shutdown Function No. EA-284-180511 OUTLINE The R1204x is a low supply cur...
Datasheet PDF File R1204K212A-TR PDF File

R1204K212A-TR
R1204K212A-TR

Overview
R1204x Series Step-up DC/DC Converter with Shutdown Function No.
EA-284-180511 OUTLINE The R1204x is a low supply current PWM step-up DC/DC converter.
Internally, a single IC consists of an NMOS FET, an oscillator, a PWM comparator, a voltage reference unit, an error amplifier, a current limit circuit, an under voltage lockout circuit (UVLO), an over-voltage protection circuit (OVP), a soft-start circuit, a maximum duty cycle limit circuit, and a thermal shutdown protection circuit.
By simply using an inductor, a resistor, capacitors and a diode as external components, a high-efficiency step-up DC/DC converter can be easily configured.
As protection functions, the IC contains a thermal shutdown protection circuit, a current limit circuit, an OVP circuit, and an UVLO circuit.
A thermal shutdown circuit detects overheating of the ICs and stops the operation to protect it from damage.
A current limit circuit limits the peak current of Lx, and an OVP circuit detects the over voltage of ...


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