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2.7-V to 5.5-V, 250-mΩ, 0.5-A, 1.3-Ω, 0.1-A power mux with active high enable and ind
SOT-23-5Hersteller:
Herstellerteil #:
TPS2105DBVT
Datenblatt:
Type:
Source Selector Switch
FET Type:
N and P-Channel
Ratio - InputOutput:
2:1
Internal Switch(s):
Yes
EDA/CAD Modelle:
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The TPS2104 and TPS2105 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 0.75 uA to decrease the demand on the standby power supply. The MOSFETs in the TPS2104 and TPS2105 do not have the parasitic diodes, typically found in discrete MOSFETs, thereby preventing back-flow current when the switch is off.
Category | Integrated Circuits (ICs)Power Management (PMIC)OR Controllers, Ideal Diodes | Series | - |
Type | Source Selector Switch | FET Type | N and P-Channel |
Ratio - Input:Output | 2:1 | Internal Switch(s) | Yes |
Current - Output (Max) | 500mA, 100mA | Current - Supply | 18 µA |
Voltage - Supply | 2.7V ~ 5.5V | Applications | Handheld/Mobile Devices |
Operating Temperature | -40°C ~ 85°C | Mounting Type | Surface Mount |
Base Product Number | TPS2105 | Number of input channels | 2 |
IN1, IN2 input voltage (min) (V) | 2.7 | IN1, IN2 input voltage (max) (V) | 5.5 |
IN1 rDS(on) (typ) (mΩ) | 250 | IN2 rDS(on) (typ) (mΩ) | 1300 |
IN1 output current (max) (A) | 0.5 | IN2 output current (max) (A) | 0.1 |
Rating | Catalog | Quiescent current (Iq) (µA) | 0.75 |
Operating temperature range (°C) | -40 to 85 | FET | Internal |
Imax (A) | 0.5 | Features | Inrush current control, Reverse current blocking |
Device type | Power muxes | Function | Inrush current control, Reverse current blocking |
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For a very short time, i had to extend the protection. Quality did not check.