Toshiba Semiconductor and Storage TPH3R704PC,LQ

Overview

TPH3R704PC from Toshiba Electronic Devices & Storage Corporation is a silicon N-channel power MOSFET in the U-MOSⅧ-H family, designed for high-frequency switching in primary-side synchronous rectification and DC-DC converter power stages. It delivers R_DS(ON) = 2.9 mΩ (typ.) at V_GS = 10 V, Q_SW = 14 nC (typ.), and supports continuous drain current up to 82 A (T_c = 25 °C), enabling compact, high-efficiency 40 V-class power supplies.

For engineers reviewing the TPH3R704PC datasheet, TPH3R704PC pinout, TPH3R704PC application, or TPH3R704PC equivalent, this device is selected for low-conduction-loss, fast-switching power stage designs where thermal performance under high-current pulsed loads and gate drive efficiency are critical selection criteria.

Technical Context

The TPH3R704PC employs Toshiba's U-MOSⅧ-H trench-gate process to achieve optimized charge balance between Q_g (47 nC typ.) and Q_oss (28 nC typ.), supporting high-frequency operation up to several hundred kHz in hard-switched topologies. Its enhancement-mode threshold voltage (V_th = 1.4–2.4 V) ensures reliable turn-on with standard 4.5 V logic-level gate drivers.

Thermal design is enabled by low R_th(ch-c) = 1.66 °C/W and SOP Advance package mounting compatibility with standard glass-epoxy PCBs. The device features integrated body diode with t_rr = 34 ns (typ.) and Q_rr = 26 nC (typ.), suitable for synchronous rectification without external Schottky supplementation.

Key Specifications

Pinout & Package

SOP Advance (TOSHIBA 2-5Q1S) surface-mount package with exposed drain pad for enhanced thermal conduction; 0.069 g typical weight; 5.0 × 6.0 mm footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRF7470PBF and DMTH4007LPSQ-13, the TPH3R704PC provides the lowest combined Q_SW/R_DS(ON) figure-of-merit (0.48 nC·mΩ) among 40 V 8x8 mm-footprint MOSFETs, making it optimal for space-constrained, high-efficiency power stages where switching frequency and thermal density are limiting factors.

Availability

TPH3R704PC is available at Aetrix Electronics and suitable for high-efficiency DC-DC converters, switching voltage regulators, and motor drivers requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.

Supply support for TPH3R704PC 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 Japanese semiconductor manufacturer specializing in power devices, logic ICs, and storage solutions, with decades of expertise in silicon MOSFET process innovation.

The TPH3R704PC belongs to Toshiba's U-MOSⅧ-H series, engineered specifically for high-frequency, high-current power conversion in datacom, industrial, and automotive auxiliary systems where conduction and switching loss trade-offs must be tightly balanced.

FAQ

What is the maximum continuous drain current rating for the TPH3R704PC?

The TPH3R704PC has a maximum continuous drain current I_D of 82 A at case temperature T_c = 25 °C. This rating assumes ideal thermal conduction via the exposed drain pad to a large copper area. At T_c = 100 °C, the derated I_D drops to approximately 52 A per the SOA curve in the datasheet. Designers must verify actual board-level thermal resistance to ensure channel temperature remains ≤175 °C under worst-case load conditions.

Does the TPH3R704PC support 4.5 V gate drive for logic-level operation?

Yes, the TPH3R704PC is fully characterized at V_GS = 4.5 V, with R_DS(ON) = 4.0 mΩ (typ.) and Q_g = 23 nC (typ.). Its V_th range of 1.4–2.4 V guarantees turn-on with standard 3.3 V or 4.5 V microcontroller outputs, making it suitable for direct GPIO drive in low-power control circuits without level-shifting.

What is the thermal resistance from channel to case (R_th(ch-c)) for the TPH3R704PC?

The TPH3R704PC has a maximum channel-to-case thermal resistance R_th(ch-c) of 1.66 °C/W, measured with the device mounted on a standard glass-epoxy PCB with adequate copper pour under the exposed drain pad. This low value enables efficient heat transfer to the PCB, reducing reliance on external heatsinks in moderate-power applications.

Can the TPH3R704PC be used as a synchronous rectifier in a buck converter?

Yes, the TPH3R704PC is frequently deployed as the lower-side synchronous rectifier in buck converters due to its low R_DS(ON), fast body diode (t_rr = 34 ns, Q_rr = 26 nC), and enhancement-mode gate characteristics. Its 40 V V_DSS rating supports output voltages up to ~15 V with sufficient margin, and its 82 A DC rating accommodates high-current POL stages.

Is the TPH3R704PC RoHS-compliant and halogen-free?

Yes, the TPH3R704PC meets RoHS Directive 2011/65/EU requirements and is halogen-free per JESD209-4 standards, as confirmed in Toshiba's official product compliance documentation. Full material declarations and test reports are available upon request through Aetrix Electronics' technical support team.