Diodes Incorporated DML3012LDC-7

Overview

DML3012LDC from Diodes Incorporated is a single-channel smart load switch integrating an N-channel MOSFET with 4.8 mΩ typical R_ON at 5 V V_IN, adjustable slew-rate-controlled soft-start, power-good signaling, thermal shutdown, and short-circuit protection. It operates across 0.5 V to 20 V input voltage and supports up to 15 A continuous current, targeting hot-swap and power-domain sequencing in portable electronics and telecom infrastructure.

For engineers reviewing the DML3012LDC datasheet, DML3012LDC pinout, DML3012LDC application, or DML3012LDC equivalent, key selection criteria include its ultra-low on-resistance, programmable turn-on timing via SR capacitor, integrated load-bleed functionality, and open-drain PG output for system-level power sequencing coordination.

Technical Context

The DML3012LDC implements a charge-pump-based gate driver to fully enhance the internal N-channel MOSFET across its full 0.5–20 V input range, enabling low R_ON without requiring external V_Bias. Its slew-rate control uses a capacitor on the SR pin to linearly modulate V_OUT rise time (10%–90%) from 0.16 ms to >16 ms depending on V_IN and capacitance.

Fault management integrates four independent protections: short-circuit detection via VIN–BLEED differential sensing (threshold 100–500 mV), thermal shutdown at +145 °C with +20 °C hysteresis, V_CC undervoltage lockout at 2.55 V nominal, and automatic load-bleed activation during fault or disable events.

Key Specifications

Pinout & Package

Package: V-DFN3030-12 (Type B), 3.0 mm × 3.0 mm × 0.8 mm, exposed thermal pad, RoHS-compliant NiPdAu-plated copper leadframe.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar smart load switch applications.

Compared with TPS22919DNYR and RT9759GJ6, the DML3012LDC uniquely combines 15 A current handling, adjustable slew rate, integrated 100 Ω bleed, and dual fault protection-making it the only option qualified for high-reliability hot-swap and multi-rail sequencing where deterministic timing and autonomous fault recovery are mandatory.

Availability

DML3012LDC is available at Aetrix Electronics and suitable for notebook subsystem power rails, USB-C PD ports, and industrial Ethernet switch modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for DML3012LDC 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 semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.

The DML3012LDC belongs to Diodes' Smart Load Switch family, engineered for high-efficiency, fault-resilient power-domain control in space-constrained portable and infrastructure equipment.

FAQ

What is the minimum input voltage required for reliable operation?

The DML3012LDC supports input voltages as low as 0.5 V while maintaining specified R_ON and control functionality. At 0.5 V V_IN, the device delivers full 15 A current capability provided V_VCC remains within 3.0–5.5 V and thermal limits are observed. This enables use with emerging sub-1 V processor cores and energy-harvesting systems.

How does the BLEED pin function during normal operation versus fault conditions?

The BLEED pin connects internally to a 100 Ω resistor that activates only when the MOSFET is disabled-either by EN deassertion or fault-triggered shutdown. During normal conduction, BLEED is electrically isolated. When active, it discharges V_OUT through the internal resistor (or external ≤1 kΩ path), ensuring V_OUT falls below 1 V within 11 ms for a 100 µF load.

Can the PG output drive a microcontroller GPIO directly?

Yes-the PG pin is an open-drain output rated for 5.5 V maximum pull-up voltage and 5 mA sink current. It can interface directly with 1.8 V, 3.3 V, or 5 V logic inputs using a ≥1 kΩ external pull-up resistor to the target logic rail. No level-shifter is needed, and PG assertion occurs 0.7–1.65 ms after V_OUT reaches 90% of final value.

What is the thermal performance impact of the V-DFN3030-12 package?

The V-DFN3030-12 (Type B) package delivers θ_JA = 30 °C/W and θ_JC = 3.5 °C/W when mounted with recommended 6×6 mm² thermal vias to inner-layer copper. At 15 A and 4.8 mΩ R_ON, power dissipation is 1.08 W, resulting in ~32 °C junction-to-ambient rise-well within the +125 °C max rating even at +85 °C ambient.