74CB3T1G125DBVR Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The 74CB3T1G125DBVR is a single-channel 1:1 bus switch IC from Texas Instruments operating from 2.3V to 3.6V. It provides low on-resistance signal switching suitable for bus isolation and routing in portable electronics. Packaged in a tiny 5-pin SOT-23 and available on tape and reel for volume production.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- 74CB3T1G125DBVR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74CB3T1G125DBVR?
- Single-channel 1:1 bus switch with low on-resistance for minimal signal degradation in high-speed bus switching
- Wide operating voltage range of 2.3V to 3.6V, compatible with 2.5V and 3.3V digital logic systems
- Ultra-compact 5-pin SOT-23 package enabling highly space-efficient PCB designs in mobile and wearable devices
- CBT-series bus switch technology eliminates voltage translation complexity for same-rail signal routing
What is 74CB3T1G125DBVR used for?
The 74CB3T1G125DBVR is used in mobile phones, tablets, and portable consumer devices for signal routing, bus isolation, and I/O switching between subsystems operating at the same voltage rail. It is commonly applied in SDIO, SPI, and I2C bus connections where a controlled switch is needed to connect or disconnect peripherals. The device is also used in battery-powered IoT nodes and wearables where minimal power consumption and compact footprint are critical.
What are the specifications of 74CB3T1G125DBVR?
| YTEOL | EYTEOL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Country of Origin | Country of Origin |
Where can I find the 74CB3T1G125DBVR datasheet?
74CB3T1G125DBVR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74CB3T1G125DBVR?
Compatible alternatives and drop-in replacements for 74CB3T1G125DBVR:
Bus Driver, CB3T/3VT Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Bus Driver, CB3T/3VT Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Frequently Asked Questions
What is the 74CB3T1G125DBVR and what is its function?
The 74CB3T1G125DBVR is a single-channel 1:1 bus switch IC from Texas Instruments. It functions as a bidirectional analog switch that connects or disconnects a signal path based on a control input. Operating from 2.3V to 3.6V, it is designed for bus isolation and signal routing in 2.5V and 3.3V digital logic systems with minimal signal degradation due to low on-resistance.
What are the key electrical parameters of the 74CB3T1G125DBVR?
The 74CB3T1G125DBVR operates over a supply voltage range of 2.3V to 3.6V, making it compatible with standard 2.5V and 3.3V digital systems. As a CBT-series bus switch, it features very low on-resistance (typically a few ohms), enabling fast signal transitions with minimal voltage drop. It is housed in a 5-pin SOT-23 package and supplied on tape and reel (DBVR suffix) for automated SMT assembly.
What package does the 74CB3T1G125DBVR come in and what does the DBVR suffix mean?
The 74CB3T1G125DBVR is packaged in a 5-pin SOT-23 (DBV) surface-mount package, which is an extremely small footprint suitable for dense PCB layouts. The R suffix indicates the component is supplied on tape and reel for pick-and-place automated assembly. This makes it ideal for high-volume production of portable consumer electronics and IoT devices.
What are typical applications for the 74CB3T1G125DBVR?
The 74CB3T1G125DBVR is commonly used in mobile phones, tablets, and portable electronics to switch or isolate serial bus lines such as SPI, I2C, SDIO, and UART. It is also applied in battery-powered IoT devices for peripheral power gating, in memory card socket interfaces, and in any design where a single bidirectional signal path needs to be switched on or off under logic control at 2.5V or 3.3V.
What is the difference between the 74CB3T1G125DBVR and a standard logic buffer like the 74LVC1G125?
The 74CB3T1G125DBVR is a passive bus switch with very low on-resistance, meaning it passes signals bidirectionally without buffering or amplification, preserving signal integrity with minimal propagation delay. In contrast, the 74LVC1G125 is an active buffer/driver that regenerates signals unidirectionally with defined output drive strength. Use the bus switch when bidirectional low-resistance connectivity is needed; use the buffer when signal drive strength or directionality is required.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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