Preliminary
RT9261B
VFM Step-up DC/DC Converter
General Description
The RT9261B Series are VFM Step-up DC/DC converter ICs with ultra low supply current by
CMOS process and suitable for use with battery-powered instruments.
The RT9261B IC consists of an oscillator, a VFM control circuit, a driver transistor (LX switch), a reference
voltage unit, an error amplifier, resistors for
voltage detection, and a LX switch protection circuit.
A low ripple and high efficiency step-up DC/DC converter can be constructed with the RT9261B IC and only three external components.
The CE pin enables the circuit to set the standby supply current at a maximum of 0.
5µA.
Ordering Information
RT9261B-
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