TPS2101 Series

2.7-V to 4-V, 250-mΩ, 0.5-A, 1.3-Ω, 0.01-A power mux with active high enable and comm

Catalog

2.7-V to 4-V, 250-mΩ, 0.5-A, 1.3-Ω, 0.01-A power mux with active high enable and comm

Part	Current - Supply	Operating Temperature [Min]	Operating Temperature [Max]	Type	Applications	FET Type	Package / Case	Package / Case [y]	Package / Case [x]	Ratio - Input:Output	Internal Switch(s)	Voltage - Supply [Max]	Voltage - Supply [Min]	Current - Output (Max)	Supplier Device Package	Mounting Type
Texas Instruments TPS2101D	10 µA	-40 °C	70 °C	Source Selector Switch	Handheld/Mobile Devices	N and P-Channel	8-SOIC	3.9 mm	0.154 in	2:1		4 V	2.7 V	10 mA 500 mA	8-SOIC	Surface Mount
Texas Instruments TPS2101DBVR	10 µA	-40 °C	70 °C	Source Selector Switch	Handheld/Mobile Devices	N and P-Channel	SC-74A SOT-753			2:1		4 V	2.7 V	10 mA 500 mA	SOT-23-5	Surface Mount

Catalog

2.7-V to 4-V, 250-mΩ, 0.5-A, 1.3-Ω, 0.01-A power mux with active high enable and comm

Key Features

• Dual-Input, Single-Output MOSFET Switch With No Reverse Current Flow (No Parasitic Diodes)IN1...250-m, 500-mA N-Channel;16-uA Max Supply CurrentIN2...1.3-, 10-mA P-Channel;1.5-uA Max Supply Current (VAUXMode)Advanced Switch Control LogicCMOS- and TTL-Compatible Enable InputControlled Rise, Fall, and Transition Times2.7-V to 4 V Operating RangeSOT-23-5 and SOIC-8 Package-40°C to 70°C Ambient Temperature Range2-kV Human-Body-Model, 750-V CDM, 200-V Machine-Model Electrostatic-Discharge ProtectionTypical ApplicationsNotebook and Desktop PCsPalmtops and PDAsDual-Input, Single-Output MOSFET Switch With No Reverse Current Flow (No Parasitic Diodes)IN1...250-m, 500-mA N-Channel;16-uA Max Supply CurrentIN2...1.3-, 10-mA P-Channel;1.5-uA Max Supply Current (VAUXMode)Advanced Switch Control LogicCMOS- and TTL-Compatible Enable InputControlled Rise, Fall, and Transition Times2.7-V to 4 V Operating RangeSOT-23-5 and SOIC-8 Package-40°C to 70°C Ambient Temperature Range2-kV Human-Body-Model, 750-V CDM, 200-V Machine-Model Electrostatic-Discharge ProtectionTypical ApplicationsNotebook and Desktop PCsPalmtops and PDAs

Description

The TPS2100 and TPS2101 are dual-input, single-output power switches designed to provide uninterrupted output voltage when transitioning between two independent power supplies. Both devices combine one n-channel (250 m) 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 0.75uA to decrease the demand on the standby power supply. The MOSFETs in the TPS2100 and TPS2101 do not have the parasitic diodes, found in discrete MOSFETs, which allow the devices to prevent back-flow current when the switch is off. The TPS2100 and TPS2101 are dual-input, single-output power switches designed to provide uninterrupted output voltage when transitioning between two independent power supplies. Both devices combine one n-channel (250 m) 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 0.75uA to decrease the demand on the standby power supply. The MOSFETs in the TPS2100 and TPS2101 do not have the parasitic diodes, found in discrete MOSFETs, which allow the devices to prevent back-flow current when the switch is off.