Monolithic Power Systems Inc. LN60A01ES-LF

Overview

LN60A01ES-LF from Monolithic Power Systems is a triple 600V N-channel enhancement-mode MOSFET with common gate control, designed for high-voltage offline switching stages in AC/DC adapters and active PFC circuits. It features 600V V_DS, 200Ω R_DS(on) at V_GS = 10V, 0.08A continuous drain current, SOIC-8 package, and integrated three-channel topology sharing one gate terminal.

For engineers reviewing the LN60A01ES-LF datasheet, LN60A01ES-LF pinout, LN60A01ES-LF application, or LN60A01ES-LF equivalent, this device is selected for compact high-voltage multi-output flyback or interleaved PFC designs where gate-synchronized switching of three independent power paths is required under 400V DC bus conditions.

Technical Context

The LN60A01ES-LF integrates three discrete 600V N-channel DMOS transistors on a single die with shared gate connection and isolated source/drain terminals. Its proprietary high-voltage process delivers 600V breakdown voltage while maintaining R_DS(on) = 200Ω (V_GS = 10V) and low gate charge for fast switching (t_on = 50ns, t_off = 3000ns).

It operates with V_GS(th) = 0.8–1.2V and supports junction temperatures from –20°C to +125°C. Thermal resistance θ_JA is 90°C/W (SOIC-8, 1"×1" FR4), enabling use in space-constrained offline power supplies without forced airflow.

Key Specifications

Pinout & Package

LN60A01ES-LF is housed in a RoHS-compliant SOIC-8 package (body size 4.9mm × 3.9mm, 1.27mm pitch), optimized for surface-mount assembly and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar triple high-voltage MOSFET applications.

Compared with STW62N60M2 and IXTP50N10P, LN60A01ES-LF uniquely delivers three isolated 600V switches in one SOIC-8 package with common gate - enabling compact, low-component-count designs for sub-5W per channel offline power stages where integration, layout simplicity, and thermal manageability outweigh raw current capability.

Availability

LN60A01ES-LF is available at Aetrix Electronics and suitable for high-efficiency AC/DC adapters, offline switching power supplies, and active power factor correction circuits requiring stable component supply across industrial and consumer production programs.

Supply support for LN60A01ES-LF 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, headquartered in Kirkland, WA, with design centers worldwide.

The LN60A01 product line targets cost-sensitive, space-constrained offline power conversion applications where integration of multiple high-voltage switches improves reliability and reduces bill-of-materials complexity.

FAQ

What is the maximum safe operating voltage for LN60A01ES-LF in continuous mode?

The absolute maximum drain-source voltage is 600V DC, verified under pulsed conditions per JEDEC JESD78. For continuous operation, design margin requires limiting V_DS to ≤480V to ensure long-term reliability under worst-case surge and temperature conditions, especially in non-clamped topologies.

Can LN60A01ES-LF be used with 5V gate drive instead of 10V?

Yes - V_GS(th) is 0.8–1.2V, so 5V gate drive fully enhances all three channels. However, R_DS(on) rises to ~230Ω at V_GS = 5V (vs. 200Ω at 10V), increasing conduction loss by ~15% in continuous operation.

Are the three source pins (S1, S2, S3) internally connected?

No - S1, S2, and S3 are fully isolated terminals with no internal connection. This allows independent grounding, current sensing, or floating bias configurations for each channel, as confirmed in the device circuit diagram and pin function table.

Does LN60A01ES-LF include built-in ESD protection on the gate?

Yes - the gate oxide is protected by integrated Zener clamping diodes rated for ±15V V_GS, matching the absolute maximum rating. No external gate resistor or TVS is required for standard PCB handling, though a 10Ω series gate resistor is recommended for ringing suppression.

What is the thermal derating behavior above 70°C ambient?

At T_A > 70°C, continuous drain current must be linearly derated from 0.08A using θ_JA = 90°C/W. For example, at 85°C ambient, max I_D drops to 0.062A to maintain T_J ≤ 125°C - verified by thermal simulation on 1"×1" 2-layer FR4.

Is LN60A01ES-LF pin-compatible with LN60A01EP-LF (PDIP-8)?

No - although both share identical electrical specifications and pin numbering, the SOIC-8 (LN60A01ES-LF) and PDIP-8 (LN60A01EP-LF) packages have different footprints, thermal vias, and mounting constraints. PCB layout must be redesigned for package interchange.