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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Alpha & Omega Semiconductor Inc. AOTS32334C

Name: AOTS32334C
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOTS32334C
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOTS32334C

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: SC-74, SOT-457

Datasheet:: AOTS32334C.pdf

Description:: MOSFET N-CH 30V 8A 6TSOP

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Product details

Overview

AOTS32334C from Alpha & Omega Semiconductor is a 30V N-channel Trench Power MOSFET in TSOP-6 package, rated for 8A continuous drain current at V_GS=4.5V, with R_DS(ON) < 26 mΩ at 4.5V and < 20 mΩ at 10V, designed for high-efficiency load switching in portable power management systems.

For engineers reviewing the AOTS32334C datasheet, pinout, applications, or equivalent options, key selection criteria include low gate charge (Q_g(4.5V) = 6–12 nC), robust thermal performance (R_θJA = 85°C/W), body-diode capability (I_S = 3A), and RoHS/halogen-free compliance for space-constrained DC-DC and battery protection designs.

Technical Context

This MOSFET employs trench-gate silicon technology to achieve low on-resistance and fast switching. Its gate threshold voltage (1.3–2.3V) enables reliable turn-on with standard logic-level drivers, while low Q_gd/Q_g ratio (2.5/6–12 nC) supports efficient hard-switching operation.

Thermal design is enabled by its TSOP-6 package with exposed drain pad, delivering R_θJL = 23°C/W and supporting 1.6W steady-state power dissipation at T_A = 70°C. The integrated body diode exhibits V_SD = 0.7–1.0V at I_S = 1A and t_rr = 5 ns with Q_rr = 6 nC under specified recovery conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage for 12V/24V rail protection and USB PD load switches
I_D (V_GS=4.5V)	8 A - Continuous current capability with standard logic-level gate drive
R_DS(ON) (V_GS=4.5V)	< 26 mΩ - Low conduction loss enabling <1.5W dissipation at 8A
Q_g(4.5V)	6–12 nC - Enables fast switching with minimal driver power overhead
T_J Range	−55°C to +150°C - Supports automotive cabin and industrial ambient environments
R_θJA	85°C/W - Validated on 1-in² FR-4 board with 2 oz copper; guides PCB thermal layout
V_GS(th)	1.3–2.3 V - Ensures turn-on compatibility with 3.3V and 5V microcontrollers

Pinout & Package

TSOP-6 package with exposed drain pad for thermal enhancement and compact footprint (3.05 × 1.6 mm). Pin 1 is Gate, Pins 2/3/5 are Drain, Pin 4 is Source, Pin 6 is Drain - configured for low-inductance paralleling of drain terminals.

Pin/Terminal	Circuit Role	Design Meaning
1	Gate	Control input; low C_iss (600 pF) minimizes drive energy and EMI
2, 3, 5, 6	Drain	High-current output node; multiple pins reduce resistance and inductance
4	Source	Power return path; referenced to driver ground for accurate gate control

Key Features

Feature	Design Value
Trench Power MOSFET technology	Delivers lower R_DS(ON) and higher cell density vs. planar process, reducing die size and cost
Low gate charge (Q_g(4.5V) = 6–12 nC)	Reduces switching losses and driver IC stress in high-frequency (>1 MHz) DC-DC converters
Body diode with t_rr = 5 ns	Enables synchronous rectification replacement in buck converters without external Schottky
RoHS and halogen-free compliant	Meets IPC-1752A material declaration requirements for consumer and medical end equipment

Applications

Battery Protection Circuit	USB Type-C Power Delivery Switch
Use Scenario: Reverse-current and overcurrent protection in single-cell Li-ion battery packs. IC Role / Device Role / Timing Role: High-side load switch controlling battery-to-system power path. Use Value: R_DS(ON) < 26 mΩ limits voltage drop to <210 mV at 8A, preserving battery runtime and thermal margin.	Use Scenario: VBUS enable/disable switching in USB-C DRP (dual-role port) applications. IC Role / Device Role / Timing Role: Bidirectional load switch managing 5–20V VBUS routing between source and sink. Use Value: Fast t_f/t_r (4 ns) and low Q_g support clean hot-plug transitions without bus glitching.
DC-DC Converter Synchronous Rectifier	Industrial I/O Module Protection
Use Scenario: Low-side synchronous rectification in 12V input buck converters for FPGA power rails. IC Role / Device Role / Timing Role: Active rectifier replacing Schottky diode to reduce conduction loss. Use Value: Body diode V_SD = 0.7–1.0V and Q_rr = 6 nC enable efficient freewheeling with minimal reverse recovery loss.	Use Scenario: Overvoltage and surge protection for 24V PLC digital input channels. IC Role / Device Role / Timing Role: Clamping switch in active crowbar circuit triggered by transient detection. Use Value: 30V V_DS rating and 150°C T_J max ensure reliability during 40V transients per IEC 61000-4-5 Level 3.

Battery Protection Circuit

USB Type-C Power Delivery Switch

Use Scenario: Reverse-current and overcurrent protection in single-cell Li-ion battery packs.

IC Role / Device Role / Timing Role: High-side load switch controlling battery-to-system power path.

Use Value: R_DS(ON) < 26 mΩ limits voltage drop to <210 mV at 8A, preserving battery runtime and thermal margin.

Use Scenario: VBUS enable/disable switching in USB-C DRP (dual-role port) applications.

IC Role / Device Role / Timing Role: Bidirectional load switch managing 5–20V VBUS routing between source and sink.

Use Value: Fast t_f/t_r (4 ns) and low Q_g support clean hot-plug transitions without bus glitching.

DC-DC Converter Synchronous Rectifier

Industrial I/O Module Protection

Use Scenario: Low-side synchronous rectification in 12V input buck converters for FPGA power rails.

IC Role / Device Role / Timing Role: Active rectifier replacing Schottky diode to reduce conduction loss.

Use Value: Body diode V_SD = 0.7–1.0V and Q_rr = 6 nC enable efficient freewheeling with minimal reverse recovery loss.

Use Scenario: Overvoltage and surge protection for 24V PLC digital input channels.

IC Role / Device Role / Timing Role: Clamping switch in active crowbar circuit triggered by transient detection.

Use Value: 30V V_DS rating and 150°C T_J max ensure reliability during 40V transients per IEC 61000-4-5 Level 3.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN3026LSD-13	R_DS(ON) = 22 mΩ @ 4.5V; TSOP-6; Q_g(4.5V) = 9.5 nC; slightly higher R_DS(ON) tolerance	Same load switch use case but lower TJ max (150°C vs. 150°C); identical thermal metrics	Preferred where Diodes Inc. supply chain alignment is required; no layout change needed
Si2308DS-T1-GE3	R_DS(ON) = 28 mΩ @ 4.5V; TSOP-6; Q_g(4.5V) = 7.5 nC; higher gate resistance (R_g = 3.6 Ω)	Acceptable for lower-frequency switching (<500 kHz); less suitable for high-speed USB PD	Cost-optimized alternative when 2 mΩ R_DS(ON) margin is acceptable and gate drive strength is limited

Compared with DMN3026LSD-13 and Si2308DS-T1-GE3, the AOTS32334C offers the lowest R_DS(ON) at 4.5V and tightest V_GS(th) distribution, making it optimal for battery-powered systems requiring maximum efficiency and consistent turn-on across temperature.

Availability

AOTS32334C is available at Aetrix Electronics and suitable for battery protection circuits, USB Type-C power delivery switches, and industrial I/O module protection requiring stable component supply and full traceability.

Supply support for AOTS32334C 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

Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-performance MOSFETs, IGBTs, and power modules for computing, consumer, and industrial markets.

The AOTS32334C belongs to AOS's Trench Power MOSFET product line, engineered specifically for high-current, low-voltage load switching applications demanding minimal conduction loss and fast, logic-level controllability.

FAQ

What is the maximum continuous drain current rating for AOTS32334C at 70°C ambient?

The AOTS32334C supports 8A continuous drain current at T_A = 25°C with V_GS = 4.5V. At T_A = 70°C, derating applies due to thermal limits: with R_θJA = 85°C/W and T_J(MAX) = 150°C, the practical continuous I_D is ~4.5A. This value is confirmed in the Absolute Maximum Ratings table and validated by the SOA curve on page 4 of the AOTS32334C datasheet.

Does AOTS32334C have built-in ESD protection, and what level is specified?

Yes, the AOTS32334C includes on-chip ESD protection. Per the Product Summary section of the datasheet, it meets Human Body Model (HBM) ESD rating per JEDEC JS-001, though the exact kV level is not numerically specified in the provided document. No CDM or MM ratings are listed, and design-level ESD robustness must be verified with system-level testing.

Can AOTS32334C be used as a synchronous rectifier, and what body diode parameters support that function?

Yes, the AOTS32334C is suitable as a synchronous rectifier. Its body diode has V_SD = 0.7–1.0V at I_S = 1A and exhibits t_rr = 5 ns with Q_rr = 6 nC under IF = 8A, di/dt = 500 A/ms conditions - parameters explicitly listed in the Electrical Characteristics table and validated in Figure 6. These values confirm low-loss freewheeling capability in buck topologies.

What is the gate threshold voltage range for AOTS32334C, and how does it affect logic-level drive compatibility?

The AOTS32334C has a gate threshold voltage V_GS(th) of 1.3–2.3V at I_D = 250 μA, ensuring reliable turn-on with 3.3V and 5V logic outputs. This range is specified in the Electrical Characteristics table and confirmed in Figure 2 (Transfer Characteristics). It allows direct interface with most microcontrollers and PMICs without level-shifting, unlike higher-threshold MOSFETs requiring >4.5V drive.

Is the TSOP-6 package of AOTS32334C lead-free and RoHS-compliant?

Yes, the AOTS32334C TSOP-6 package is both lead-free and RoHS-compliant, as explicitly stated in the Product Summary and General Description sections. It is also halogen-free per IEC 61249-2-21, satisfying environmental compliance requirements for consumer, medical, and industrial end equipment without exemption requests.

AOTS32334C Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: -

Package/Case:: SC-74, SOT-457

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 8A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 20mOhm @ 8A, 10V

Vgs(th) (Max) @ Id:: 2.3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 20 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 600 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 2.5W (Ta)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 6-TSOP

AOTS32334C FAQ

1.How can I place an order for AOTS32334C through Aetrix?

Please submit a Request for Quotation (RFQ) for AOTS32334C on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AOTS32334C reliable?

The price and inventory of AOTS32334C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOTS32334C is usually 5 days.

3.What payment methods are accepted for AOTS32334C?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOTS32334C transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOTS32334C?

AOTS32334C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOTS32334C order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AOTS32334C?

For technical support, including AOTS32334C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOTS32334C requirements.

6.How does Aetrix verify that AOTS32334C is sourced from the original manufacturer or authorized distributors?

All AOTS32334C products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AOTS32334C meets industry standards.

7.What is the process for return or replacement of AOTS32334C?

All AOTS32334C units undergo pre-shipment inspection (PSI). If there is an issue with AOTS32334C, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AOTS32334C part is unused and in its original packaging.

Return procedure for AOTS32334C:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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