Diodes Incorporated DMN33D9LV-7A

Overview

DMN33D9LV-7A from Diodes Incorporated is a dual N-channel enhancement-mode MOSFET in SOT563 package, rated for 30V V_DSS, 3Ω R_DS(ON) @ V_GS = 4.5V, and 350mA continuous drain current at +25°C. It delivers low on-resistance and fast switching for compact DC-DC converters and motor control circuits in space-constrained portable electronics.

For engineers reviewing the DMN33D9LV-7A datasheet, DMN33D9LV-7A pinout, DMN33D9LV-7A application, or DMN33D9LV-7A equivalent, key selection criteria include gate threshold voltage (0.8–1.4V), input capacitance (48pF), thermal resistance (288°C/W), dual-channel isolation, and SOT563 footprint compatibility with high-density PCB layouts.

Technical Context

This dual MOSFET integrates two independent N-channel silicon devices sharing no internal connection-enabling synchronous buck stage control or complementary half-bridge drive. Its 0.8–1.4V gate threshold supports direct logic-level drive from 1.8V/3.3V microcontrollers without level-shifting.

Designed for low-voltage, low-power switching, it features ESD-protected gates (±10μA I_GSS), 0.55nC total gate charge at 4.5V, and normalized R_DS(ON) drift of <1.2× from –55°C to +150°C-ensuring stable conduction across industrial temperature ranges.

Key Specifications

Pinout & Package

SOT563 is a 6-pin, dual-source, surface-mount plastic package measuring 1.60 × 1.60 × 0.60 mm with exposed thermal pad (not electrically connected). Pin 1 indicator (on -7A variant) enables automated optical alignment during placement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN33D9LV-7A, DMN3026LSD-13 trades 50% higher on-resistance for backward SOT-363 compatibility, while AOB2036L abandons dual-channel integration entirely-making DMN33D9LV-7A the sole option meeting simultaneous requirements for SOT563 size, dual independent gates, and sub-3.5Ω R_DS(ON) at 4.5V.

Availability

DMN33D9LV-7A is available at Aetrix Electronics and suitable for motor control, DC-DC converters, LED backlighting, and power management functions requiring stable component supply across consumer, industrial, and medical device production cycles.

Supply support for DMN33D9LV-7A 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 centers across Asia and manufacturing in IATF 16949-certified facilities.

The DMN33D9LV belongs to Diodes' logic-level MOSFET product line, engineered specifically for space-constrained, battery-powered systems where low gate drive voltage, minimal conduction loss, and ultra-small packaging are mandatory.

FAQ

What is the maximum junction temperature for continuous operation?

The DMN33D9LV-7A has an operating junction temperature range of –55°C to +150°C. Continuous operation at +150°C is permitted only when power dissipation remains within derated limits-specifically, ≤0.20W at +70°C ambient and ≤0.43W at +25°C ambient, per the thermal characteristics table in DS41900 Rev. 3-2.

Is the SOT563 package lead-free and RoHS compliant?

Yes. The DMN33D9LV-7A uses matte tin annealed over copper leadframe, fully complies with EU RoHS directives 2002/95/EC, 2011/65/EU, and 2015/863/EU, and contains no intentionally added lead, halogens, or antimony-meeting Diodes' "Green" definition with <900ppm bromine/chlorine and <1000ppm antimony compounds.

Can both channels be used in parallel to increase current handling?

No. The DMN33D9LV-7A's dual channels are electrically isolated but not matched for paralleling-R_DS(ON) tolerance (min/typ/max spread) and thermal coupling differences cause current imbalance. Parallel use is not characterized or recommended; instead, select a single-channel part rated for higher current if needed.

Does the -7A suffix affect electrical performance versus -7?

No. Per Note 5 in the datasheet, the "A" suffix indicates inclusion of a Pin 1 indicator mark on the package top surface for automated optical alignment. There is no difference in electrical specifications, thermal performance, reliability, or packaging dimensions between DMN33D9LV-7 and DMN33D9LV-7A.