Diodes Incorporated DMP6350SQ-13

Overview

DMP6350SQ-13 from Diodes Incorporated is a 60V P-channel enhancement-mode MOSFET in SOT23 package, rated for -1.5A continuous drain current at V_GS = -10V, with R_DS(ON) = 350mΩ max, qualified to AEC-Q101 and PPAP-capable for automotive power management functions including backlighting and DC-DC converters.

For engineers reviewing the DMP6350SQ-13 datasheet, DMP6350SQ-13 pinout, DMP6350SQ-13 application, or DMP6350SQ-13 equivalent, key selection criteria include gate threshold voltage (-1.0 to -3.0V), low input capacitance (C_iss = 206pF), fast switching (t_D(ON) = 3.6ns), thermal resistance (R_θJA = 176°C/W), and AEC-Q101 qualification status.

Technical Context

This P-channel MOSFET operates as a high-side load switch or synchronous rectifier in low-power automotive DC-DC stages, leveraging its negative gate threshold and low R_DS(ON) at -4.5V (550mΩ) to enable efficient 3.3V/5V rail control. Its body diode exhibits t_RR = 8.2ns and Q_RR = 2.7nC, supporting fast recovery in buck converter freewheeling paths.

The device uses a planar trench-gate structure optimized for low gate charge (Q_g = 4.1nC at V_GS = -10V) and minimal Crss (11pF), enabling clean turn-off with reduced Miller-induced shoot-through risk in half-bridge configurations. Thermal design is constrained by R_θJC = 34°C/W and maximum junction temperature of +150°C.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic package with 0.915mm nominal lead pitch, 2.40mm × 1.30mm footprint, and 0.40mm height; UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMG6350L-7 and AO3401, DMP6350SQ-13 uniquely balances AEC-Q101 compliance, 550mΩ R_DS(ON) at -4.5V, and 176°C/W thermal resistance-making it optimal for space-limited automotive subsystems requiring both reliability and logic-level drivability.

Availability

DMP6350SQ-13 is available at Aetrix Electronics and suitable for automotive LED backlighting, USB-C power delivery load switching, and low-power DC-DC synchronous rectification requiring stable component supply across production ramps.

Supply support for DMP6350SQ-13 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 China, Taiwan, and the U.S.

This device belongs to Diodes' AEC-Q101-qualified Automotive Power MOSFET product line, engineered specifically for robust operation in harsh automotive environments including engine control units, body electronics, and infotainment power supplies.

FAQ

What is the maximum continuous drain current for DMP6350SQ-13 at 70°C ambient?

The maximum continuous drain current is -1.2A at T_A = +70°C with V_GS = -10V, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the SOT23 package on standard FR-4 PCBs with 2oz copper and minimum pad layout.

Does DMP6350SQ-13 support 3.3V logic-level gate drive?

No-its gate threshold voltage range is -1.0V to -3.0V, and R_DS(ON) is not characterized below V_GS = -4.5V. At -3.3V, the device remains partially enhanced with unpredictable R_DS(ON); reliable operation requires ≥-4.5V gate drive.

How is the SOT23 package thermally rated for automotive under-hood use?

With R_θJA = 176°C/W on standard FR-4 and R_θJC = 34°C/W, the junction-to-case path allows heatsinking via PCB copper pour. At 1.2A and 350mΩ, power dissipation is ~0.5W, resulting in ΔT_J-A ≈ 88°C-well within the -55°C to +150°C operating range when ambient stays ≤62°C.

Is DMP6350SQ-13 pin-compatible with other SOT23 P-channel MOSFETs?

Yes-it follows standard SOT23-3 pinout (Source-Gate-Drain, left-to-right top view), matching industry conventions. However, electrical characteristics differ significantly; substitution requires validation of R_DS(ON), Q_g, and thermal performance in the target layout.