DMP2045U-7

$0.23

Description：MOSFET P-CH 20V 4.3A SOT23
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:d9b7e98a0f6a Category: Single FETs, MOSFETs Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：MOSFET P-CH 20V 4.3A SOT23
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)
FET Type：P-Channel
Technology：MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)：20 V
Current - Continuous Drain (Id) @ 25°C：4.3A (Ta)
Drive Voltage (Max Rds On, Min Rds On)：1.8V, 4.5V
Rds On (Max) @ Id, Vgs：45mOhm @ 4A, 4.5V
Vgs(th) (Max) @ Id：1V @ 250µA
Gate Charge (Qg) (Max) @ Vgs：6.8 nC @ 4.5 V
Vgs (Max)：±8V
Input Capacitance (Ciss) (Max) @ Vds：634 pF @ 10 V
FET Feature：-
Power Dissipation (Max)：800mW (Ta)
Operating Temperature：-55°C ~ 150°C (TJ)
Grade：-
Qualification：-
Mounting Type：Surface Mount
Supplier Device Package：SOT-23-3
Package / Case：TO-236-3, SC-59, SOT-23-3

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DMP2045U-7

Overview

The DMP2045U-7 is a P-channel enhancement mode MOSFET manufactured by Diodes Incorporated in a SOT-23 package. It features a drain-source voltage (V_DSS) of -20 V and a maximum continuous drain current (I_D) of -4.3 A at +25°C. The device exhibits low on-resistance, with R_DS(ON) values of 45 mΩ at V_GS = -4.5 V, 58 mΩ at -2.5 V, and 90 mΩ at -1.8 V. Total gate charge (Q_g) is 6.8 nC, and input capacitance (C_iss) is 634 pF. Power dissipation is rated at 0.8 W steady state.

Feature Summary

Low on-state resistance for high efficiency power management
Fast switching speed with low input capacitance
ESD protected gate structure
Totally lead-free and fully RoHS compliant

Applications

DC-DC converters
Power management functions

Procurement Notes

Verify the component datasheet revision matches DS40478 Rev. 4-2 to ensure accurate electrical parameters. Confirm that the ordering suffix '-7' corresponds to the standard 3,000-unit tape and reel packaging configuration. Validate compliance with EU Directive 2002/95/EC (RoHS) requirements during procurement.

Selection Notes

Select this component for applications requiring a compact SOT-23 footprint with a -20 V rating. Ensure the driving circuit provides sufficient gate-source voltage to achieve the lowest R_DS(ON) specifications. Evaluate thermal performance against the 154 °C/W junction-to-ambient thermal resistance for steady-state operation.

Part Context

This part belongs to the DMP2045U series of P-channel enhancement mode MOSFETs from Diodes Incorporated. It is designed to minimize on-state resistance while maintaining superior switching performance. An automotive-compliant version is available under the separate part number DMP2045UQ.

Replacement Considerations

For automotive applications requiring specific change control or IATF 16949 certification, consider the DMP2045UQ variant. Verify pinout compatibility and electrical ratings when substituting other -20 V P-channel MOSFETs in existing designs.