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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

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Power Supply Circuit

Example of Power Supply Circuit Block Diagram Circuit Description

Circuit Description

Example of Power Supply Circuit Block Diagram

Thermostat sensors and high frequency circuits require a variety of power supply voltages to enhance functionality and reduce power consumption. In subsequent stages of PMIC of integrated power supply ICs, modules such as sensitive sensors and chipsets sometimes require higher performance for power supply, and the selection of LDO regulators for power supply stabilization and voltage transformation is of particular importance.

Toshiba's LDO regulators provide less standby current, which helps reduce power consumption across the entire system. It also contributes to long-life quality stabilization with overheat/overcurrent protection and avoids unexpected system power supply events.

Examples of typical recommended products are listed below, and also provide a link to the online distributor inventory search page to buy the product.

Toshiba offers a wide choice of LDO regulators in packages ranging from general-purpose to ultra-compact that are suitable for high-performance requirements, such as low noise, high ripple compressibility (PSRR), high output current stability (load transient response), and low current consumption, which are particularly required for state-of-the-art analog circuits.

Product name

Data sheet Package
(Width×Length×Height mm)

Product Overview

Checking On-line distributor inventory

TAR5SB18

PDF

SOT-25 (SMV)
(2.9×2.8×1.1)

General purpose bipolar type regulator, VIN=15V (Max), VOUT=1.8V (Typ.), IOUT=200mA (Max)

TAR5SB33

PDF

SOT-25 (SMV)
(2.9×2.8×1.1)

General purpose bipolar type regulator, VIN=15V (Max), VOUT=3.3V (Typ.), IOUT=200mA (Max)

TAR5SB50

PDF

SOT-25 (SMV)
(2.9×2.8×1.1)

General purpose bipolar type regulator, VIN=15V (Max), VOUT=5.0V (Typ.), IOUT=200mA (Max)

TCR3UM18A

PDF

DFN4
(1.0×1.0×0.58)

Low quiescent current 0.34μA (Typ.) (@IOUT=0mA), VOUT=1.8V (Typ.), IOUT=300mA (Max)

TCR3UM28A

PDF

DFN4
(1.0×1.0×0.58)

Low quiescent current 0.34μA (Typ.) (@IOUT=0mA), VOUT=2.8V (Typ.), IOUT=300mA (Max)

TCR3UM30A

PDF

DFN4
(1.0×1.0×0.58)

Low quiescent current 0.34μA (Typ.) (@IOUT=0mA), VOUT=3.0V (Typ.), IOUT=300mA (Max)

Other Circuit Description

Interface Circuit

Other block diagrams

Power supply circuit
Example of a power supply circuit to MCU

Application / Thermostat

Power supply circuit
Circuit example of an AC input main power supply

Application / Thermostat

Power supply circuit using P-ch MOSFET
Examples of Charger IC and USB Power Supply Circuit using P-ch MOSFETs

Application / Thermostat

Panel display system

Application / Thermostat

Power supply circuit using N-ch MOSFET
Examples of Charger IC and USB Power Supply Circuit using N-ch MOSFETs

Application / Thermostat

Isolation circuit
Example of an insulating circuit using photorelay (replacement from mechanical relay)

Application / Thermostat

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