Diodes Incorporated DMC2053UFDB-13

Overview

DMC2053UFDB-13 from Diodes Incorporated is a complementary pair enhancement-mode MOSFET in a single U-DFN2020-6 (Type B) package, integrating an N-channel (20V, 35mΩ @ 4.5V, 4.6A) and P-channel (–20V, 75mΩ @ –4.5V, –3.1A) MOSFET for bidirectional power control. It delivers low on-resistance, low input capacitance, and 0.6mm max profile-enabling compact, high-efficiency load switching in portable power adaptors and dual-rail power management circuits.

For engineers reviewing the DMC2053UFDB-13 datasheet, DMC2053UFDB-13 pinout, DMC2053UFDB-13 application, or DMC2053UFDB-13 equivalent, key selection criteria include verified R_DS(ON) at 2.5V/4.5V gate drive, thermal resistance (R_θJA = 110°C/W with copper pad), complementary channel matching, and U-DFN2020-6 terminal layout compatibility with space-constrained PCB designs.

Technical Context

This dual MOSFET implements independent N- and P-channel enhancement-mode structures sharing a common thermal die substrate. The N-channel device features V_GS(TH) of 0.4–1.0V and R_DS(ON) as low as 24mΩ (typ) at V_GS = 4.5V; the P-channel exhibits V_GS(TH) of –0.45 to –1.0V and R_DS(ON) down to 57mΩ (typ) at V_GS = –4.5V. Both channels support ±12V gate-source rating and operate across –55°C to +150°C junction temperature.

Dynamic performance includes C_iss of 369pF (N-ch) / 440pF (P-ch), Q_g of 3.6nC (N-ch) / 5.9nC (P-ch), and fast switching with t_F ≤ 3.6ns (N-ch) / ≤18ns (P-ch). Body diode forward voltage is 0.7V (N-ch) / –0.7V (P-ch) at 1A, enabling efficient synchronous rectification and reverse-current blocking in DC-DC and load-switch topologies.

Key Specifications

Pinout & Package

U-DFN2020-6 (Type B) package with exposed thermal pad (pin 6), 0.65mm pitch, and NiPdAu-plated copper leadframe. Dimensions: 2.0mm × 2.0mm × 0.6mm max height. Moisture sensitivity level 1; RoHS-compliant and halogen/antimony-free ("Green").

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary MOSFET pair applications.

Compared with DMC2053UFDB-13, DMC2056UFDB-13 offers lower conduction loss but trades off switching speed, while SI6926ADQ-T1-GE3 provides tighter threshold matching at the cost of higher dynamic losses-making DMC2053UFDB-13 optimal for balanced 1–3MHz load-switch and power-management use cases.

Availability

DMC2053UFDB-13 is available at Aetrix Electronics and suitable for USB-C power delivery modules, portable battery protection circuits, and dual-rail power sequencing applications requiring stable component supply, long-term lifecycle assurance, and traceable green-material compliance.

Supply support for DMC2053UFDB-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.

The DMC2053UFDB-13 belongs to Diodes' U-DFN complementary MOSFET product line, engineered specifically for space-constrained, high-efficiency power management in portable and USB-powered electronics.

FAQ

What is the maximum continuous drain current for each channel at +70°C ambient?

The N-channel supports 3.7A and the P-channel supports –2.5A at T_A = +70°C with standard FR-4 PCB mounting and 1-inch² copper pad. These values derive directly from the "Continuous Drain Current" table in DS41736 Rev. 3–2, Note 6, and reflect derating due to thermal resistance (R_θJA = 110°C/W) and junction temperature limit (T_J(max) = +150°C).

Does the DMC2053UFDB-13 require a gate resistor for safe operation?

No external gate resistor is mandatory for basic switching, but a 10Ω series resistor is recommended to damp ringing caused by low gate resistance (R_g = 4.1Ω N-ch / 8.5Ω P-ch) and parasitic inductance. This value balances switching speed (t_R/t_F < 10ns) and EMI suppression, as validated in the SOA curves and gate charge plots of the datasheet.

Can this device replace discrete N- and P-channel MOSFETs in an existing SOT-23 design?

No - the DMC2053UFDB-13 uses U-DFN2020-6 (2.0×2.0mm), incompatible with SOT-23 footprints (2.9×1.3mm). Direct replacement requires PCB redesign. However, its 4mm² area is ~40% smaller than two SOT-23 devices, offering net board-space reduction when migrating from discrete solutions.

Is the exposed thermal pad electrically connected to any internal node?

Yes - the exposed pad (pin 6) is internally connected to the N-channel source (S1) and P-channel source (S2), forming a common-source thermal and electrical node. Per the mechanical data section, it must be soldered to a dedicated PCB copper pour for thermal performance and electrical reference; floating the pad degrades R_θJA by >30%.