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Power-supply ICs and controllers

CMOS LDO regulators for low-power applications

By Torex Semiconductor on 15th December 201015th December 2015

Product Details Supplier Info More products

Torex Semiconductor has introduced the XC6420 dual-channel CMOS LDO regulators, which are suitable for both RF and digital applications.

Comprising two independent LDO circuits, each able to deliver 150mA, the XC6420 offers designers maximum functionality in a small space.

Utilising the USPN-6 package, which measures 1.3 x 1.3mm with a maximum height of 0.4mm, the XC6420 delivers high PSRR (75dB at 1kHz), low drop-out voltage (190mV at 150mA) and low noise operation.

Ultra-fast transient response ensures a high level of output stability and each LDO circuit is completely isolated to ensure no unwanted cross-talk between channels during load fluctuations.

Consuming 55uA per channel, the XC6420 is optimised for low-power applications and each output voltage can be set up independently within a range of 1.2V to 3.6V, in 0.05V steps with a +/-2 per cent tolerance.

Both channels can be controlled independently using separate EN pins and in standby mode the current consumption reduces to 0.1uA.

The XC6420 is fully compatible with low ESR ceramic capacitors and includes a CL discharge function with a dedicated internal switch to ensure the Vout pin quickly returns to the VSS level when the LDO is shut down via the EN pin.

The XC6420 can work from inputs ranging from 1.6V to 5.5V and it is also available in the SOT26 package for compatibility with older designs.

Torex Semiconductor

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