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04-19-2015

New Toshiba CMOS-LDO Regulators Provide Advanced Drop-Out and Noise Performance at 300mA Output Current

Toshiba » TCR3DM

Ultra-small devices meet power, space and performance requirements for battery operated equipment

Toshiba Electronics Europe (TEE) has announced a family of ultra-miniature CMOS low drop-out voltage regulators (LDOs) with a 300 mA driving capability. The new TCR3DM family offers an output voltage range of 1.0 V to 4.5 V with the possibility to specify the fixed output voltage in steps of 50 mV. The highly-integrated devices are ideal for use in smartphones, tablet PCs and other portable, battery operated devices that require low power consumption, high performance and minimum PCB space.

Toshiba - TCR3DM

Despite the small size, typical drop out voltages are only 210 mV (at an output voltage and current of 2.5 V and 300 mA). In addition to an output noise voltage of just 38 μVrms (typ. at 2.5 V output, IOUT = 10 mA), the LDOs also offer high ripple rejection (R.R.) of 70 dB (typ.). A load transient response of only 80 mV (typ.) for output current changes between 1 and 300 mA further contributes to the excellent performance of this series.

Other integrated features are inrush current protection, overcurrent protection, thermal shutdown protection and a built in output auto-discharge function, which in total will lead to an optimized system performance with respect to noise and battery lifetime as well as a reduced demand for external components.

The TCR3DM voltage regulators are available in a small DFN4 package that measures just 1.0 mm × 1.0 mm × 0.58 mm. Furthermore this 300 mA regulator is also available as TCR3DF family in a general purpose SOT-25 package that makes this LDO also suitable for standard industrial and consumer applications.

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