供应RT9261 VFM升压DC-DC转换IC

VFM升压DC-DC转换IC

VFM升压DC-DC转换IC

VFM升压DC-DC转换IC

The RT9261 Series are VFM Step-up DC/DC ICs with ultra low supply current by CMOS process and suitable for use with battry-powered instruments.

The RT9261 IC consists of an oscillator, a VFM control circuit, a driver transistor (L X 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 of this RT9261 IC with only three external

The RT9261A IC provides with a drive pin (EXT) for ancomponents.external transistor, so that a power transistor can be externally applied. Therefore, the RT9261A IC is recommended for applications where large currents are required. EN pin enables circuit to set the standby supply current at a maximum of 0. 5μA.

  Features

●Minimal Number of External Components ( Only an Inductor, a Diode, and a Capacitor)

●Ultra Low Input Current ( 5μA at Switch Off)

●土2% High Output Voltage Accuracy

●Low Ripple and Low Noise

●Low Start-up Voltage, 0.85V at 1mA

●75% Efficiency with Low Cost Inductor

●+50 ppm/。C Low Temperature-Drift

●SOT-89 and SOT-23-5 Small Packages

●RoHS Compliant and 100% Lead (Pb)-Free

  Applications

●Power source for battery-powered equipment

●Power source for cameras, camcorders, VCRs, PDAs, pagers, electronic data banks, and hand-held communication equipment

●Power source for applications, which require higher voltage than that of batteries used in the appliances

VFM升压DC-DC转换IC