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Product Detailed Parameters
- Description：IC OR CTRLR SRC SELECT SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Source Selector Switch
- FET Type：N and P-Channel
- Ratio - Input:Output：2:01
- Internal Switch(s)：Yes
- Delay Time - ON：-
- Delay Time - OFF：-
- Current - Output (Max)：500mA, 100mA
- Current - Supply：14 µA
- Voltage - Supply：2.7V ~ 4V
- Applications：Handheld/Mobile Devices
- Operating Temperature：-40°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The TPS2103DBVR is a power multiplexer IC manufactured by Texas Instruments, designed for dual-input to single-output power distribution. It operates within a supply voltage range of 2.7 V to 4 V and supports an output current of 500 mA. The device features a maximum on-resistance of 2.1 Ohms, with a maximum run time of 440 us and a maximum idle time of 5 us. It is housed in a SOT-23-5 surface-mount package and functions reliably across an operating temperature range from -40°C to +70°C.
Feature Summary
- Dual input to single output power multiplexing capability
- Integrated N-channel and P-channel MOSFET switches
- Low quiescent current operation for battery efficiency
Applications
- Portable electronic devices requiring redundant power sources
- Battery backup systems for handheld equipment
- Power management circuits in mobile communication devices
Procurement Notes
Verify the specific ordering suffix 'DBVR' corresponds to the SOT-23-5 package and reel packaging configuration when sourcing. Confirm that the component meets RoHS compliance requirements for your assembly process. Ensure that the supply voltage applied does not exceed the 4 V maximum limit during operation to maintain device integrity and performance specifications.
Selection Notes
Select this component when a compact solution for switching between two power sources is required within a 2.7 V to 4 V system. Consider the 2.1 Ohm on-resistance impact on voltage drop at full load. Compare against the TPS2100 series if longer transition times are acceptable or the TPS2104 series if a wider voltage range up to 5.5 V is necessary for the application design.
Part Context
This part belongs to the TPS2103 family of OR controllers and ideal diode source selectors. It serves as a surface-mount alternative to through-hole packages like the TPS2103D, facilitating automated assembly in space-constrained designs. The DBVR suffix indicates the specific tape-and-reel packaging format used for high-volume manufacturing integration.
Replacement Considerations
The TPS2100DBVR offers similar functionality but exhibits different timing characteristics, specifically a longer run time of 830 us. Designers must evaluate whether the slower switching speed of the substitute affects system stability during power transitions.
