Toshiba Semiconductor and Storage SSM6L12TU,LF

Overview

SSM6L12TU,LF from Toshiba is a dual-channel complementary MOSFET array featuring one N-channel and one P-channel enhancement-mode silicon MOSFET in a single 6-pin UDFN package. It delivers R_DS(ON) = 180 mΩ (Q1, V_GS = 2.5 V) and 430 mΩ (Q2, V_GS = −2.5 V), supports ±12 V gate drive, and operates across −55°C to +150°C ambient range - optimized for compact DC-DC converter output stage switching.

For engineers reviewing the SSM6L12TU,LF datasheet, SSM6L12TU,LF pinout, SSM6L12TU,LF application, or SSM6L12TU,LF equivalent, key selection criteria include dual complementary channel integration, low-voltage logic-level gate drive compatibility (2.5 V/−2.5 V), thermal performance on FR4 (500 mW at T_a = 25°C), and high-speed switching (t_on/t_off ≤ 16 ns).

Technical Context

The SSM6L12TU,LF integrates two independent MOSFETs sharing common thermal and mechanical constraints but with asymmetric electrical ratings: Q1 (N-ch) supports +30 V V_DS, +0.5 A I_D; Q2 (P-ch) supports −20 V V_DS, −0.5 A I_D. Both channels use enhancement-mode operation with gate threshold voltages of +0.5–1.1 V (Q1) and −0.5–−1.1 V (Q2), enabling direct interfacing with 2.5 V/3.3 V logic controllers.

Switching behavior is characterized under pulsed conditions (duty ≤ 1%) with 4.7 Ω gate resistance; measured capacitances (C_iss = 245 pF / 218 pF) and transfer admittance (|Y_fs| = 1.0–2.0 S / 0.65–1.3 S) confirm suitability for high-frequency (<1 MHz) synchronous rectification and load switching where gate charge minimization and fast edge response are critical.

Key Specifications

Pinout & Package

SSM6L12TU,LF uses a 6-pin ultra-thin DFN (UDFN6) package with exposed drain thermal pad (TOSHIBA designation: 2-2T1B). The package measures 2.0 mm × 1.3 mm × 0.55 mm and weighs 7.0 mg (typ.). Pin 1 is marked by a dot; top-view pin numbering follows JEITA standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SSM6L12TU,LF, DMN2020LSD-13 trades compactness for robust gate drive margin, while SI6926ADQ-T1-GE3 improves thermal capacity at the cost of pinout compatibility - making SSM6L12TU,LF optimal for space-constrained 2.5 V logic-driven systems requiring minimal layout change.

Availability

SSM6L12TU,LF is available at Aetrix Electronics and suitable for battery-powered load switching, synchronous buck converter output stages, and USB port power control requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for SSM6L12TU,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

Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and logic ICs for consumer, industrial, and automotive applications with emphasis on energy efficiency and miniaturization.

The SSM6L12TU,LF belongs to Toshiba's SSM series of small-signal complementary MOSFET arrays, engineered specifically for high-density power management in portable electronics and IoT edge devices where logic-level drive and thermal efficiency are critical.

FAQ

What is the maximum continuous drain current rating for each channel of the SSM6L12TU,LF?

The SSM6L12TU,LF specifies a DC drain current (I_D) of +0.5 A for Q1 (N-channel) and −0.5 A for Q2 (P-channel) at T_a = 25°C. These ratings assume operation within absolute maximum limits and proper PCB thermal design - specifically mounting on an FR4 board with 645 mm² copper pad per the datasheet note. Exceeding these currents without derating risks thermal runaway or permanent damage to the SSM6L12TU,LF.

Does the SSM6L12TU,LF support true logic-level gate drive at 2.5 V?

Yes, the SSM6L12TU,LF is explicitly characterized for full enhancement at ±2.5 V gate-source voltage: Q1 achieves R_DS(ON) ≤ 180 mΩ and Q2 ≤ 430 mΩ under those conditions. Its gate threshold voltages (+0.5–1.1 V for Q1, −0.5–−1.1 V for Q2) ensure reliable turn-on with standard 2.5 V CMOS outputs, eliminating the need for external level shifters in the SSM6L12TU,LF application.

What is the thermal resistance (R_th(ch-a)) of the SSM6L12TU,LF under standard mounting conditions?

The SSM6L12TU,LF has a channel-to-ambient thermal resistance of approximately 250°C/W when mounted on a standard FR4 PCB (25.4 mm × 25.4 mm × 1.6 mm) with a 645 mm² copper pad, as specified in Note 1 of the Absolute Maximum Ratings table. This value enables calculation of junction temperature rise (ΔT_j = P_D × R_th) to ensure safe operation below 150°C for the SSM6L12TU,LF.

Can the SSM6L12TU,LF be used in a synchronous rectifier configuration?

Yes, the SSM6L12TU,LF is designed for synchronous rectification in buck converters and OR-ing applications. Its matched low R_DS(ON) at logic-level drive, fast switching times (t_on/t_off ≤ 16 ns), and complementary N+P topology allow it to replace Schottky diodes in 3.3 V–5 V output stages - directly reducing conduction loss and improving efficiency in the SSM6L12TU,LF implementation.

Is the SSM6L12TU,LF RoHS compliant and lead-free?

Yes, the SSM6L12TU,LF is RoHS compliant and lead-free, as confirmed by Toshiba's official product documentation and environmental compliance statements. The ",LF" suffix explicitly denotes lead-free termination, and the device meets EU RoHS Directive 2011/65/EU requirements for restricted substances - a key specification verified for all production lots of the SSM6L12TU,LF.