Toshiba Semiconductor and Storage TPN4R303NL,L1Q

Overview

TPN4R303NL,L1Q from Toshiba Electronic Devices & Storage Corporation is a silicon N-channel power MOSFET in the U-MOS-H series, designed for high-frequency synchronous rectification and low-side switching in DC-DC converters. It delivers R_DS(ON) = 5.1 mΩ (typ.) at V_GS = 4.5 V, Q_SW = 3.9 nC (typ.), and supports 63 A DC drain current with 30 V V_DSS, enabling compact, high-efficiency 12 V/5 V point-of-load designs.

For engineers reviewing the TPN4R303NL,L1Q datasheet, TPN4R303NL,L1Q pinout, TPN4R303NL,L1Q application, or TPN4R303NL,L1Q equivalent, key selection criteria include gate charge optimization for PWM frequency scaling, thermal resistance (R_th(ch-c) = 3.67 °C/W), avalanche ruggedness (E_AS = 37 mJ), and TSON Advance package compatibility with automated SMT assembly.

Technical Context

This MOSFET employs Toshiba's U-MOS-H trench-gate process to minimize conduction and switching losses simultaneously. Its enhancement-mode operation (V_th = 1.3–2.3 V) ensures reliable turn-on with standard logic-level drivers, while low Crss (39 pF typ.) and Ciss (1110 pF typ.) support stable high-speed switching up to 1 MHz in buck converter topologies.

The device integrates a robust body diode with V_DSF = −1.2 V (typ.) at 40 A and supports unclamped inductive switching via guaranteed single-pulse avalanche energy of 37 mJ. Thermal design leverages the TSON Advance package's low channel-to-case resistance (3.67 °C/W) for direct heatsinking on PCB copper planes.

Key Specifications

Pinout & Package

TPN4R303NL,L1Q is housed in the TSON Advance package (TOSHIBA designation: 2-3X1S), a 3.3 mm × 3.3 mm × 0.85 mm surface-mount outline with exposed drain pad for thermal and electrical performance. The package weighs 0.026 g and supports reflow soldering per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel MOSFET applications.

Compared with IRLHS6342TRPBF and SISF06BDNT-T1-GE3, the TPN4R303NL,L1Q offers the lowest Q_SW/R_DS(ON) ratio in its footprint class, making it optimal for high-frequency, thermally constrained DC-DC stages where gate drive efficiency and thermal density are prioritized over automotive qualification or ultra-low on-resistance.

Availability

TPN4R303NL,L1Q is available at Aetrix Electronics and suitable for high-efficiency DC-DC converters, switching voltage regulators, and industrial power supplies requiring stable component supply and consistent parametric performance across production lots.

Supply support for TPN4R303NL,L1Q 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 is a global semiconductor manufacturer specializing in power devices, logic ICs, and storage solutions, with core expertise in trench-MOS and bipolar technologies.

The TPN4R303NL,L1Q belongs to Toshiba's U-MOS-H power MOSFET family, engineered specifically for high-frequency, high-efficiency DC-DC conversion in computing, industrial, and telecom infrastructure where low Q_g and low R_DS(ON) are critical.

FAQ

What is the maximum continuous drain current rating for TPN4R303NL,L1Q?

The TPN4R303NL,L1Q is rated for 63 A DC drain current at T_c = 25 °C. This rating assumes ideal heatsinking via the exposed drain pad. At 100 °C case temperature, derated current drops to approximately 40 A per the safe operating area curve. Always verify thermal design using R_th(ch-c) = 3.67 °C/W and actual PCB copper area in your layout before finalizing the TPN4R303NL,L1Q design-in.

Does TPN4R303NL,L1Q support 3.3 V logic-level gate drive?

Yes, the TPN4R303NL,L1Q has an enhancement-mode gate threshold voltage range of 1.3–2.3 V, ensuring full enhancement at 3.3 V gate drive. Its R_DS(ON) = 5.1 mΩ (typ.) is specified at V_GS = 4.5 V, but measurements confirm <7.5 mΩ at 3.3 V, making it suitable for direct interface with 3.3 V microcontrollers without level shifters-provided gate charge (3.9 nC) is adequately driven.

What is the avalanche capability of TPN4R303NL,L1Q and how is it tested?

The TPN4R303NL,L1Q guarantees single-pulse avalanche energy E_AS = 37 mJ under standardized test conditions (V_DD ≈ 15 V, I_AR = 40 A, L = 18 µH). This rating is verified per JEDEC JESD24-11 and reflects ruggedness against inductive turn-off transients. It does not imply repetitive avalanche operation; system design must limit avalanche events to rare fault conditions and ensure T_ch remains ≤150 °C during such events.

Is TPN4R303NL,L1Q RoHS-compliant and halogen-free?

Yes, the TPN4R303NL,L1Q meets RoHS Directive 2011/65/EU requirements and is halogen-free per IEC 61249-2-21. Toshiba confirms compliance in its official environmental documentation, and the device carries the "Green" marking per their internal classification. For full material declarations and REACH SVHC status, refer to Toshiba's official product page or contact their environmental compliance team directly.

Can TPN4R303NL,L1Q be used in parallel configurations?

Yes, the TPN4R303NL,L1Q supports paralleling due to its positive temperature coefficient of R_DS(ON), which promotes current sharing across multiple devices. To ensure balanced operation, use matched gate resistors (≤1 Ω difference), symmetrical PCB routing, and shared thermal vias beneath each device's exposed drain pad. Derate total current by 15% to account for parametric spread and thermal coupling effects in the final TPN4R303NL,L1Q parallel implementation.