BU1JTD3WG-TR

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The BU1JTD3WG-TR is a standard CMOS low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 1.85 V with a maximum output current of 200 mA. The device operates within an input voltage range of 1.7 V to 6 V and features a typical power supply rejection ratio (PSRR) of 70 dB. Key electrical parameters include a quiescent operating supply current of 35 µA, a maximum power dissipation of 540 mW, line regulation of 2 mV, and load regulation of 10 mV. The unit is housed in an SSOP-5 surface-mount package and supports operation from -40°C to +85°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Standard CMOS architecture for efficient power management
• Fixed 1.85 V output voltage capability
• High ripple rejection performance

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronic devices
• General-purpose linear voltage regulation circuits
• Low-power embedded system power supplies

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix and tape-and-reel configuration against the manufacturer's latest datasheet before ordering. Confirm that the SSOP-5 footprint matches your PCB layout requirements. Ensure thermal management strategies account for the specified 540 mW power dissipation limit under expected load conditions. Cross-reference the RoHS compliance status with current regulatory standards for your target market.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a stable 1.85 V rail is required from inputs between 1.7 V and 6 V. The low 35 µA quiescent current makes it suitable for battery-operated applications where standby power consumption is critical. The 200 mA output current capacity supports moderate load demands. Consider the SSOP-5 package size constraints during board design. Verify that the 70 dB PSRR meets the noise sensitivity requirements of downstream circuitry.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the ROHM BUxJTD3WG series of standard CMOS LDO regulators. These components are designed for general-purpose power management in compact electronics. The series offers various fixed output voltages while maintaining consistent electrical characteristics such as current capacity and package type. The BU1JTD3WG-TR specifically targets applications requiring precise 1.85 V regulation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes within the same family include BU1CTD3WG-TR (1.25 V), BU26TD3WG-TR (2.6 V), BU2JTD3WG-TR (2.85 V), and BU31TD3WG-TR (3.1 V). These parts share identical pinouts, packages, and electrical specifications except for the fixed output voltage. Ensure the system design can accommodate the different voltage levels if swapping between these variants.