Toshiba Launches LDO Voltage Regulators for Consumer Electronics

Toshiba Launches LDO Voltage Regulators for Consumer Electronics

Toshiba has launched the TCR1HF series of LDO regulators that deliver high voltages, a wide input voltage range, and the industry’s lowest standby current consumption. Shipment of the first three products in the new series, “TCR1HF18B,” “TCR1HF33B,” and “TCR1HF50B,” which offer output voltages of 1.8 V, 3.3 V, and 5.0 V, respectively, is now available.

To reduce the power consumption of an electronic product in a standby mode when using a power supply circuit with an LDO regulator, it is necessary for the power supply to be directly connected to the LDO regulator, and power consumption is reduced by turning off the internal circuit.

The new products support a wide input voltage range of 4 V to 36 V, which allows them to connect to the 4 V to 20 V power supply used for USB PD, and to 24 V power supply.
They also feature a standby current consumption of 1μA (typ.), the lowest in the industry, allowing electronic equipment to maintain standby operation with very low power consumption. A fast load transient response of -60 mV/+50 mV (typ.) ensures they deliver stable output voltage during the sudden change in current when a product transitions from stand-by to an operating state.

A reference design “Power multiplexer circuit” using the new product is available.

Toshiba will continue to expand the TCR1HF series line-up by adding products with different functions or output voltage values for diverse applications.

Key features

  • Wide range input voltage: VIN = 4 V to 36 V
  • Low current consumption: IBON = 1 μA (typ.)
  • Maximum output current rating: IOUT=150 mA
  • Fast load transient response: ΔVOUT= -60 mV/+50 mV (typ.) (IOUT = 0 mA ⇔ 10 mA)
  • General-purpose package SOT-25 (SMV)

Key specifications

Key applications

  • Consumer / Personal equipment (Mobile, Note-PC, Home Appliances, etc.)
  • Industrial equipment

Click here to learn more about TCR1HF18B