TPS2105-EP Series

2.7-5.5V Dual In/Single Out MOSFET, 0.5A Main/0.1A Aux Input, Act-High Enable

Catalog

2.7-5.5V Dual In/Single Out MOSFET, 0.5A Main/0.1A Aux Input, Act-High Enable

Part	Applications	Mounting Type	Ratio - Input:Output	Current - Output (Max)	Type	Current - Supply	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	FET Type	Supplier Device Package	Current - Output (Max) [Max]
Texas Instruments TPS2105DBVTG4	Handheld/Mobile Devices	Surface Mount	2:1	100 mA 500 mA	Source Selector Switch	18 µA	2.7 V	5.5 V	85 °C	-40 °C	SC-74A SOT-753	N and P-Channel	SOT-23-5
Texas Instruments TPS2105MDBVREP	Handheld/Mobile Devices	Surface Mount	2:1		Source Selector Switch	18 µA	2.7 V	5.5 V	125 °C	-55 °C	SC-74A SOT-753	N and P-Channel	SOT-23-5	100 mA 500 mA
Texas Instruments TPS2105DBVR	Handheld/Mobile Devices	Surface Mount	2:1	100 mA 500 mA	Source Selector Switch	18 µA	2.7 V	5.5 V	85 °C	-40 °C	SC-74A SOT-753	N and P-Channel	SOT-23-5
Texas Instruments TPS2105DBVT	Handheld/Mobile Devices	Surface Mount	2:1	100 mA 500 mA	Source Selector Switch	18 µA	2.7 V	5.5 V	85 °C	-40 °C	SC-74A SOT-753	N and P-Channel	SOT-23-5

Catalog

2.7-5.5V Dual In/Single Out MOSFET, 0.5A Main/0.1A Aux Input, Act-High Enable

Key Features

• Dual-Input, Single-Output MOSFET Switch WithNo Reverse Current Flow (No Parasitic Diodes)IN1: 250-mΩ, 500-mA N-Channel; 18-µA Supply CurrentIN2: 1.3-mΩ, 100-mA P-Channel; 0.75-µA SupplyCurrent (VAUXMode)Advanced Switch Control LogicCMOS and TTL Compatible Enable InputControlled Rise, Fall, and Transition Times2.7-V to 5.5-V Operating RangeSOT-23-5 Package2-kV Human Body Model, 750-V Charged Device Model,200-V Machine-Model ESD ProtectionSupports Defense, Aerospace, and Medical ApplicationsControlled BaselineOne Assembly and Test SiteOne Fabrication SiteAvailable in Military (–55°C to 125°C)Temperature RangeExtended Product Life CycleExtended Product-Change NotificationProduct TraceabilityDual-Input, Single-Output MOSFET Switch WithNo Reverse Current Flow (No Parasitic Diodes)IN1: 250-mΩ, 500-mA N-Channel; 18-µA Supply CurrentIN2: 1.3-mΩ, 100-mA P-Channel; 0.75-µA SupplyCurrent (VAUXMode)Advanced Switch Control LogicCMOS and TTL Compatible Enable InputControlled Rise, Fall, and Transition Times2.7-V to 5.5-V Operating RangeSOT-23-5 Package2-kV Human Body Model, 750-V Charged Device Model,200-V Machine-Model ESD ProtectionSupports Defense, Aerospace, and Medical ApplicationsControlled BaselineOne Assembly and Test SiteOne Fabrication SiteAvailable in Military (–55°C to 125°C)Temperature RangeExtended Product Life CycleExtended Product-Change NotificationProduct Traceability

Description

The TPS2105 is a dual-input, single-output power switch designed to provide uninterrupted output voltage when transitioning between two independent power supplies. Both devices combine one N-channel (250 mΩ) and one P-channel (1.3-Ω) MOSFET with a single output. The P-channel MOSFET (IN2) is used with auxiliary power supplies that deliver lower current for standby modes. The N-channel MOSFET (IN1) is used with a main power supply that delivers higher current required for normal operation. Low on-resistance makes the N-channel the ideal path for higher main supply current when power-supply regulation and system voltage drops are critical. When using the P-channel MOSFET, quiescent current is reduced to 0.75 µA to decrease the demand on the standby power supply. The MOSFETs in the TPS2105 do not have the parasitic diodes, typically found in discrete MOSFETs, thereby preventing back-flow current when the switch is off. The TPS2105 is a dual-input, single-output power switch designed to provide uninterrupted output voltage when transitioning between two independent power supplies. Both devices combine one N-channel (250 mΩ) and one P-channel (1.3-Ω) MOSFET with a single output. The P-channel MOSFET (IN2) is used with auxiliary power supplies that deliver lower current for standby modes. The N-channel MOSFET (IN1) is used with a main power supply that delivers higher current required for normal operation. Low on-resistance makes the N-channel the ideal path for higher main supply current when power-supply regulation and system voltage drops are critical. When using the P-channel MOSFET, quiescent current is reduced to 0.75 µA to decrease the demand on the standby power supply. The MOSFETs in the TPS2105 do not have the parasitic diodes, typically found in discrete MOSFETs, thereby preventing back-flow current when the switch is off.