Toshiba Semiconductor and Storage TPN4R203NC,L1Q

Overview

TPN4R203NC from Toshiba Electronic Devices & Storage Corporation is a silicon N-channel power MOSFET in TSON Advance package, designed for high-efficiency power switching in battery protection and load management circuits. It delivers R_DS(ON) = 3.5 mΩ (typ.) at V_GS = 10 V, supports 53 A DC drain current, and operates with V_DSS = 30 V - enabling compact, low-loss switching in Li-ion battery packs and portable power systems.

For engineers reviewing the TPN4R203NC datasheet, TPN4R203NC pinout, TPN4R203NC application, or TPN4R203NC equivalent, key selection criteria include its low on-resistance, 8-pin TSON Advance thermal performance, gate threshold range (1.3–2.3 V), avalanche energy rating (62 mJ), and suitability for high-current, space-constrained battery protection ICs and power management switches.

Technical Context

This U-MOS VIII-generation device uses trench-gate structure to achieve low R_DS(ON) and fast switching with Q_g = 24 nC (typ.) and C_iss = 1370 pF (typ.). Its enhancement-mode operation and 1.3–2.3 V V_th ensure reliable turn-on with standard logic-level gate drivers.

The integrated body diode supports synchronous rectification and reverse-current handling up to 146 A (pulsed), while R_th(ch-c) = 5.68 °C/W enables efficient heat transfer to PCB copper when mounted per JEDEC MS-012 guidelines.

Key Specifications

Pinout & Package

TSON Advance (TOSHIBA 2-3X1S) - 3.3 mm × 3.3 mm × 0.85 mm thin-outline package with exposed drain pad for enhanced thermal and electrical performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRLML6344TRPBF and SiR20DP-T1-GE3, the TPN4R203NC offers optimal balance of ultra-low R_DS(ON), 30 V rating, and compact TSON Advance footprint - making it preferred for space-constrained, high-current battery protection where thermal performance must be maximized without increasing board area.

Availability

TPN4R203NC is available at Aetrix Electronics and suitable for lithium-ion battery protection, power management switches, and motor driver half-bridges requiring stable component supply and consistent parametric performance across production lots.

Supply support for TPN4R203NC 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 storage solutions with emphasis on reliability, miniaturization, and energy efficiency.

The TPN4R203NC belongs to Toshiba's U-MOS VIII N-channel MOSFET product line, engineered specifically for high-current, low-voltage power switching in portable and battery-powered systems where thermal density and gate drive simplicity are critical.

FAQ

What is the maximum continuous drain current rating for TPN4R203NC?

The TPN4R203NC is rated for 53 A DC drain current at T_c = 25 °C. However, the package itself is limited to 45 A per absolute maximum ratings. Actual usable current depends on PCB layout, copper area, ambient temperature, and thermal interface - derating is required above 25 °C case temperature per the guaranteed maximum P_D-T_c curve in Figure 8.12. The TPN4R203NC must be mounted on a minimum 100 mm² 2-oz copper pad for rated performance.

Does TPN4R203NC support 3.3 V gate drive?

Yes, the TPN4R203NC has a gate threshold voltage range of 1.3–2.3 V, ensuring full enhancement with 3.3 V logic-level signals. At V_GS = 4.5 V, R_DS(ON) is specified at 6.4 mΩ (max), making it suitable for 3.3 V microcontroller outputs without level shifting. However, for lowest conduction loss, 10 V drive is recommended to achieve the 3.5 mΩ (typ.) value. The TPN4R203NC gate oxide is rated for ±20 V, so 3.3 V drive poses no reliability risk.

What is the avalanche energy rating of TPN4R203NC and how is it tested?

The TPN4R203NC has a single-pulse avalanche energy rating of 62 mJ, measured under conditions of V_DD ≈ 24 V, T_ch = 25 °C (initial), L = 0.091 mH, and I_AR = 23 A per Note 5 in the datasheet. This rating validates safe operation during inductive switching events such as motor commutation or relay de-energization. The TPN4R203NC does not require external avalanche snubbers in properly designed circuits meeting these test conditions.

How should the exposed drain pad of TPN4R203NC be connected on the PCB?

The exposed drain pad (pins 5–8) of the TPN4R203NC must be soldered directly to a large, thermally robust copper pour on the PCB - ideally ≥100 mm² of 2-oz copper with multiple thermal vias to inner ground planes. This connection serves dual purposes: it provides the primary thermal path (R_th(ch-c) = 5.68 °C/W) and carries high-current drain return paths. Floating or undersized pads will cause excessive junction temperature rise and premature failure. The TPN4R203NC thermal performance is validated only with this mounting method per JEDEC MS-012 standards.

Is TPN4R203NC RoHS compliant and halogen-free?

Yes, the TPN4R203NC is RoHS compliant and halogen-free per Toshiba's environmental specifications. It meets EU Directive 2011/65/EU and contains ≤900 ppm bromine and ≤900 ppm chlorine in homogeneous materials. Full compliance documentation, including IMDS and IPC-1752 reports, is available upon request from Toshiba or authorized distributors. The TPN4R203NC is also compliant with Toshiba's Green Procurement Standards and REACH SVHC requirements.