Diodes Incorporated ZXMP3F37DN8TA

Overview

ZXMP3F37DN8TA from Diodes Incorporated is a dual P-channel enhancement-mode MOSFET in SO-8 package, rated for -30V V(BR)DSS, 25mΩ RDS(on) at VGS = -10V, and -8.3A continuous drain current. It serves as a high-efficiency synchronous rectifier or load switch in DC-DC converters and power management circuits where low conduction loss and fast switching are critical.

For engineers reviewing the ZXMP3F37DN8TA datasheet, ZXMP3F37DN8TA pinout, ZXMP3F37DN8TA application, or ZXMP3F37DN8TA equivalent, key selection criteria include verified dual P-channel topology, AEC-Q101 qualification, SO-8 thermal performance (RθJA = 60°C/W with two active die), and gate drive compatibility down to -4.5V.

Technical Context

This device integrates two identical P-channel MOSFETs in a single SO-8 package with shared drain terminals (D1/D2 tied internally per channel layout). Each channel operates independently with matched threshold voltage (-1.0V to -3.0V) and exhibits low gate charge (Qg = 31.6nC) and fast switching (tD(off) = 44ns, tf = 28ns) under -15V VDS conditions.

Its body diode features VSD = -0.8V to -1.2V at -1.7A and trr = 16.2ns, enabling efficient synchronous rectification. Thermal design leverages dual-die operation: maximum power dissipation reaches 2.7W with 22mW/°C linear derating when both channels conduct equally.

Key Specifications

Pinout & Package

Package: SO-8 surface-mount plastic package with matte tin terminals, UL 94V-0 rating, and moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual P-channel MOSFET applications.

Compared with DMC3025LSD-13 and SI3993DV-T1-GE3, ZXMP3F37DN8TA delivers superior current handling (-8.3A) and lower gate charge (31.6nC vs. ≥40nC), making it optimal for high-efficiency, thermally constrained 24–30V industrial DC-DC designs requiring robust dual-channel control.

Availability

ZXMP3F37DN8TA is available at Aetrix Electronics and suitable for DC-DC converters, hot-swap controllers, and motor control circuits requiring stable component supply and AEC-Q101 reliability assurance.

Supply support for ZXMP3F37DN8TA 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.

This part belongs to Diodes' high-reliability power MOSFET product line, engineered for automotive and industrial power management where AEC-Q101 qualification, SO-8 thermal performance, and logic-level gate drive are essential.

FAQ

Is ZXMP3F37DN8TA still in active production?

No - the datasheet explicitly states "ADVANCE INFORMATION DISCONTINUED". Diodes Incorporated has discontinued this part, but Aetrix Electronics maintains legacy inventory and offers lifecycle support including cross-reference assistance and last-time-buy planning for ongoing production programs.

Can ZXMP3F37DN8TA be used in a synchronous buck converter with 3.3V gate drive?

Yes - its VGS(th) range of -1.0V to -3.0V ensures reliable turn-on with 3.3V logic-level drivers. At VGS = -3.3V, RDS(on) is approximately 65mΩ (interpolated from typical curves), supporting moderate-current applications up to ~3A per channel with acceptable loss.

What is the thermal relationship between single-die and dual-die operation?

When only one channel operates, RθJA = 100°C/W (1.25W max); with both channels active and equally loaded, RθJA improves to 60°C/W (2.7W max) due to distributed power dissipation and shared thermal mass in the SO-8 package.

Does ZXMP3F37DN8TA support paralleling of channels for higher current?

No - the SO-8 pinout does not provide separate D1/D2 terminals; the top-view diagram shows D1 and D2 as distinct pins, but internal construction and thermal coupling limit safe parallel use. For higher current, use discrete single-channel devices with independent thermal paths.