Diodes Incorporated DTM3A25P20NFDB-7

Overview

DTM3A25P20NFDB-7 from Diodes Incorporated is a dual-die integrated discrete device combining a PNP bipolar junction transistor and an N-channel MOSFET in a single U-DFN2020-6 (Type B) package. It delivers V_CE(sat) = −85 mV at I_C = −1 A, R_DS(on) = 0.3 Ω at V_GS = 4.5 V, and supports I_C = −3 A / I_D = 0.63 A continuous operation - used in compact DC-DC converter power stages and load-switching circuits requiring low conduction loss and fast switching.

For engineers reviewing the DTM3A25P20NFDB-7 datasheet, DTM3A25P20NFDB-7 pinout, DTM3A25P20NFDB-7 application, or DTM3A25P20NFDB-7 equivalent, key selection criteria include verified V_CE(sat) and R_DS(on) values under real gate/base drive conditions, thermal resistance to ambient (R_θJA = 308 °C/W on minimal pad), dual-die interaction effects, and compatibility with 0.65 mm pitch PCB assembly.

Technical Context

This hybrid device integrates a high-gain PNP transistor (h_FE = 200–500 at I_C = −100 mA to −6 A) and a logic-level N-channel MOSFET (V_GS(th) = 0.5–1.0 V) on a shared thermally optimized die substrate. The PNP provides precise current control and low-saturation switching, while the MOSFET enables efficient high-side or synchronous rectification with sub-1 V gate drive.

Both dies share common thermal path through the exposed collector pad, enabling coordinated thermal management. The U-DFN2020-6 (Type B) package features NiPdAu-plated terminals and meets UL 94V-0 flammability rating, supporting reflow-compatible assembly for space-constrained power modules and portable electronics.

Key Specifications

Pinout & Package

U-DFN2020-6 (Type B) package with 0.65 mm pitch, 2.0 mm × 2.0 mm footprint, and exposed collector pad for thermal and electrical connection. Molded green compound, NiPdAu terminal finish, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hybrid transistor-MOSFET applications.

Compared with DMN3026LSD-13 and ZXMD63C03X, DTM3A25P20NFDB-7 uniquely balances ultra-low bipolar saturation voltage with logic-level MOSFET drive in a 2.0 mm × 2.0 mm footprint - making it optimal for space- and efficiency-constrained dual-mode power control.

Availability

DTM3A25P20NFDB-7 is available at Aetrix Electronics and suitable for USB-C power delivery modules, portable battery chargers, industrial sensor nodes, and smart home router power sequencers requiring stable component supply and long-term manufacturability.

Supply support for DTM3A25P20NFDB-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The DTMx series targets highly integrated power management solutions for portable and space-constrained applications, emphasizing co-packaged bipolar-MOSFET synergy to reduce board area and improve thermal coupling.

FAQ

What is the maximum continuous drain current for the MOSFET portion at +85°C?

The MOSFET portion supports I_D = 0.45 A continuous at T_A = +85°C with V_GS = 10 V, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limits under standard PCB mounting conditions and must be validated against actual board layout and airflow.

Can the PNP and MOSFET operate simultaneously without cross-conduction risk?

Yes - the internal die isolation and independent terminal routing (separate E and S pins) prevent unintended current paths. The PNP emitter and MOSFET source are not internally connected, enabling independent control of each switch without shoot-through under proper gate/base timing.

Is the exposed collector pad electrically connected to any pin?

Yes - the exposed collector pad is electrically and thermally connected to both Pin 1 (C) and Pin 6 (D), forming a low-inductance, high-current path for the PNP collector and MOSFET drain. PCB layout must connect this pad directly to system ground or power plane per Diodes' recommended footprint.

What is the gate threshold voltage range, and how does it affect 3.3 V MCU compatibility?

V_GS(th) is specified from 0.5 V to 1.0 V, ensuring full enhancement at 3.3 V logic levels. With R_DS(on) = 0.3 Ω at V_GS = 4.5 V and 0.5 Ω at V_GS = 2.5 V, the device remains fully functional with 3.3 V drive - though conduction loss increases ~67% versus 4.5 V operation.