Diodes Incorporated DML1005LDS-7

Overview

DML1005LDS from Diodes Incorporated is a single-channel smart load switch featuring an integrated N-channel MOSFET, designed for high-current power-path control in space-constrained systems. It delivers 10A continuous current with 3.8 mΩ R_DS(ON) at 5V V_BIAS, operates from 0.8V to V_BIAS−1.5V input, and supports 3.2–5.5V bias supply - enabling use in ultrabooks, SSDs, and telecom equipment where low on-resistance and fast switching are critical.

For engineers reviewing the DML1005LDS datasheet, DML1005LDS pinout, DML1005LDS application, or DML1005LDS equivalent, key selection criteria include its 2 µs turn-on rise time, integrated quick output discharge, 35 µA quiescent current, thermal resistance (θ_JA = 60°C/W), and V-DFN3030-8 package compatibility with high-density PCB layouts.

Technical Context

The DML1005LDS implements a logic-controlled N-channel MOSFET power switch with internal gate drive and bias regulation. Its ON pin accepts TTL/CMOS-compatible signals (V_ONH ≥ 1.2 V, V_ONL ≤ 0.5 V), enabling direct microcontroller interfacing without level-shifting. The device requires separate V_BIAS (3.2–5.5 V) to ensure optimal R_DS(ON) across wide VIN ranges.

It integrates an active pull-down resistor (R_PD ≤ 200 Ω) for controlled output discharge during shutdown, eliminating external components. Thermal performance is defined by θ_JC = 8°C/W and maximum junction temperature of +150°C, supporting sustained 10A operation under proper PCB copper and layout conditions.

Key Specifications

Pinout & Package

V-DFN3030-8 (Type R) thermally enhanced 3.0 × 3.0 mm, 0.8 mm height, exposed EPAD package with 8 terminals (including dual IN and dual OUT pins plus EPAD).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS22965DSGR and SIP32401DT-T1-GE3, the DML1005LDS uniquely combines 10 A capability, sub-4 mΩ R_DS(ON), integrated discharge, and true 1.05 V input support - making it the sole option for high-current, low-voltage, space-constrained computing and storage applications requiring full feature integration.

Availability

DML1005LDS is available at Aetrix Electronics and suitable for ultrabooks, SSD modules, and telecom line cards requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green packaging.

Supply support for DML1005LDS 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, manufacturing, and sales operations across Asia, Europe, and North America.

The DML1005LDS belongs to Diodes' Smart Load Switch product line, engineered specifically for high-efficiency, high-density power-path control in portable computing, storage, and communications infrastructure where thermal performance and integration reduce system-level complexity.

FAQ

What is the minimum recommended V_BIAS for reliable operation at 1.05 V input?

The datasheet specifies a minimum V_BIAS of 3.2 V to ensure VIN ≤ V_BIAS−1.5 V holds for 1.05 V input. At 3.2 V V_BIAS, the maximum supported VIN is 1.7 V, providing 0.65 V margin above 1.05 V. Operation below 3.2 V risks increased R_DS(ON) and thermal instability due to insufficient gate overdrive.

Can the DML1005LDS safely switch 10 A continuously without forced airflow?

Yes - with proper PCB layout: ≥2 oz copper, ≥4 thermal vias under EPAD, and ≥100 mm² copper pour. Under these conditions and +85°C ambient, junction temperature remains ≤135°C (derated from +150°C max), satisfying continuous 10 A operation per datasheet thermal characterization (θ_JA = 60°C/W, P_LOSS ≈ 0.38 W).

Is the ON pin 5 V tolerant when V_BIAS = 3.3 V?

Yes - the ON pin is referenced to GND and has absolute maximum rating of −0.3 V to 6 V. With V_BIAS = 3.3 V, applying 5 V to ON is within specification and maintains valid logic-high threshold (V_ONH ≥ 1.2 V). No level shifter is required for MCU GPIOs operating at 3.3 V or 5 V.

Does the integrated output discharge activate during normal ON-to-OFF transitions only, or also during fault conditions?

The integrated 200 Ω pull-down activates exclusively during OFF-state transitions - i.e., when ON pin falls below 0.5 V. It does not engage during overcurrent, overtemperature, or undervoltage lockout faults; those conditions disable the FET but leave OUT floating unless external discharge is added. This behavior is confirmed in the Functional Characteristics section of DS38066 Rev. 2–2.