Diodes Incorporated DML3011ALFDS-7

Overview

DML3011ALFDS from Diodes Incorporated is a single-channel smart load switch integrating an N-channel MOSFET with 7.5 mΩ typical R_ON at 5 V V_CC and 12 V V_IN, adjustable slew rate control via external capacitor on SR pin, thermal shutdown at +145°C, and load bleed functionality with 100 Ω internal resistance. It operates across 0.5–20 V input voltage and supports up to 10.5 A continuous current in portable power domain switching.

For engineers reviewing the DML3011ALFDS datasheet, DML3011ALFDS pinout, DML3011ALFDS application, or DML3011ALFDS equivalent, key selection criteria include ultra-low R_ON for minimal conduction loss, programmable inrush current limiting, integrated fault protections (short-circuit, thermal, UVLO), and compact V-DFN2020-8 packaging for space-constrained hot-swap and peripheral port designs.

Technical Context

The DML3011ALFDS implements a charge-pump-based gate driver enabling full enhancement of its internal N-MOSFET across wide input voltages (0.5–20 V), while maintaining low quiescent current (≤1 µA shutdown supply) and fast turn-on delay (60–400 µs depending on V_CC and V_IN). Its BLEED pin connects directly to V_OUT to activate quick discharge upon disable, with internal 100 Ω resistance rated for ≤0.4 W dissipation.

Fault management is hardware-autonomous: short-circuit detection compares VIN–BLEED voltage drop against thresholds (100–350 mV), triggering immediate MOSFET shutdown and bleed activation; thermal shutdown activates only when EN is high and junction exceeds +145°C, with +20°C hysteresis; V_CC UVLO disables operation below 2.3 V with 200 mV hysteresis.

Key Specifications

Pinout & Package

Package: V-DFN2020-8 (Type N), 2.0 mm × 2.0 mm × 0.8 mm, exposed thermal pad, RoHS-compliant NiPdAu-plated terminals, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS22919DNYR and AP22653AW5-7, the DML3011ALFDS uniquely combines 10.5 A current handling, adjustable slew rate, and integrated 100 Ω bleed in a 2.0 mm × 2.0 mm footprint-enabling both high-power and precision inrush control without external components.

Availability

DML3011ALFDS is available at Aetrix Electronics and suitable for notebook subsystem power rails, USB-C peripheral ports, industrial IoT gateways, and medical patient monitor modules requiring stable component supply, long-term lifecycle support, and consistent parametric performance.

Supply support for DML3011ALFDS 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, specializing in high-efficiency power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.

The DML3011ALFDS belongs to Diodes' Smart Load Switch product line, engineered specifically for space-constrained, high-reliability power domain control in portable and embedded systems requiring autonomous fault response and minimal bill-of-materials.

FAQ

What is the maximum allowable external resistor between BLEED and VOUT?

The BLEED pin must connect to V_OUT through a resistor ≤1 kΩ to ensure reliable short-circuit detection and proper bleed activation. Exceeding this value degrades fault response time and may prevent the internal protection circuit from sensing overcurrent events accurately, as the voltage drop across the MOSFET is measured via the BLEED–V_OUT path.

How does the SR pin capacitor affect turn-on timing?

A capacitor from SR to ground sets the V_OUT slew rate: larger values increase ramp time (e.g., 1 nF yields ~0.4 ms at 5 V V_IN), while floating SR gives minimum rise time (~0.14 ms). The relationship follows t_R ≈ 0.06 × ((C_SR + 0.3) × V_IN) / 0.5 µA, enabling precise inrush current control without software intervention.

Does the DML3011ALFDS require external VCC decoupling?

Yes - a 1 µF ceramic capacitor must be placed close to the V_CC pin (Pin 3) and GND (Pin 4) to stabilize the internal charge pump and logic supply. Without it, transient voltage droop during switching can cause erratic enable behavior, premature thermal shutdown, or failure to maintain MOSFET conduction under dynamic loads.

Can the DML3011ALFDS operate with VCC = 2.8 V?

No - the absolute minimum V_CC is 3.0 V, and the undervoltage lockout triggers at 2.3–2.8 V. Operating below 3.0 V risks incomplete gate drive, increased R_ON, unreliable fault protection activation, and potential latch-up. Systems with 2.8 V rails must use a local LDO or charge pump to meet the 3.0 V minimum requirement.