RT9198-29GBR Equivalent & Substitute Parts

Part Overview

The RT9198-29GBR is a linear voltage regulator IC manufactured by Richtek USA Inc., designed to deliver a fixed 2.9V output at 300mA in a compact SOT-23-5R surface mount package. This device is classified as a Power Management (PMIC) component and maintains Active product status. Linear regulators of this specification are essential in applications requiring low-noise, low-dropout voltage regulation for powering analog circuits, microcontroller peripherals, and sensor interfaces. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and procurement optimization.

Substiute Parts

RT9198-29GBR

Richtek USA Inc.In Stock: 1147RT9198-29GBR Datasheet

Current PartRFQ

TLV70229DBVT

Texas InstrumentsIn Stock: 2134TLV70229DBVT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT9198-29GBR is determined by the following critical parameters:

• Fixed output voltage of 2.9V
• Maximum output current of 300mA
• Maximum input voltage of 5.5V
• Surface mount package compatibility (SOT-23-5 or equivalent)
• Operating temperature range of -40°C to 125°C
• Active product status and RoHS3 compliance

The TLV70229DBVT from Texas Instruments meets all substitution criteria. Both devices deliver identical output voltage and current specifications, operate within the same temperature range, utilize compatible SOT-23-5 packaging, and maintain equivalent regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the RT9198-29GBR and TLV70229DBVT are Active products with ROHS3 compliance and REACH Unaffected status, making them suitable for current production designs. The TLV70229DBVT offers lower quiescent current (55 µA versus 130 µA), which may provide advantages in battery-powered or low-power standby applications. The TLV70229DBVT includes additional protection features (Reverse Polarity and Under Voltage Lockout) and higher PSRR performance, while the RT9198-29GBR exhibits lower dropout voltage (0.33V versus 0.38V). Selection between these devices should be based on specific application requirements regarding power consumption, protection feature necessity, and dropout voltage constraints.

Frequently Asked Questions (FAQ)

Q: Can the TLV70229DBVT directly replace the RT9198-29GBR in existing designs?

A: Yes. Both devices share identical output voltage (2.9V), output current (300mA), input voltage rating (5.5V maximum), and package type (SOT-23-5). Pin-to-pin compatibility and electrical performance are equivalent for standard linear regulator applications.

Q: What are the key differences between these two regulators?

A: The primary differences are quiescent current (TLV70229DBVT: 55 µA versus RT9198-29GBR: 130 µA), dropout voltage (TLV70229DBVT: 0.38V versus RT9198-29GBR: 0.33V), and protection features. The TLV70229DBVT includes Reverse Polarity and Under Voltage Lockout protection, while the RT9198-29GBR does not.

Q: Are both devices suitable for new production designs?

A: Yes. Both maintain Active product status and ROHS3 compliance, qualifying them for current manufacturing and long-term availability.

Q: Does package compatibility extend to PCB layout considerations?

A: Both devices use SC-74A (SOT-753) packaging, ensuring identical footprint and PCB layout compatibility. No layout modifications are required for substitution.

Q: Which device should be selected for battery-powered applications?

A: The TLV70229DBVT is preferable for battery-powered designs due to its significantly lower quiescent current (55 µA), reducing overall system power consumption during standby or low-activity periods.