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AO3480

Name: AO3480
Rating: 4.7 (12 reviews)

MOSFET N-CH 30V 5.7A SOT23-3

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規格

Supplier	Alpha & Omega Semiconductor Inc.
Package	Tape & Reel (TR)
ProductStatus	Obsolete
FETType	N-Channel
Technology	MOSFET (Metal Oxide)
DraintoSourceVoltage(Vdss)	30 V
Current-ContinuousDrain(Id)@25°C	5.7A (Ta)
DriveVoltage(MaxRdsOnMinRdsOn)	2.5V, 10V
RdsOn(Max)@IdVgs	26.5mOhm @ 5.7A, 10V
Vgs(th)(Max)@Id	1.45V @ 250µA
GateCharge(Qg)(Max)@Vgs	10 nC @ 4.5 V
Vgs(Max)	±12V
InputCapacitance(Ciss)(Max)@Vds	630 pF @ 15 V
PowerDissipation(Max)	1.4W (Ta)
OperatingTemperature	-55°C ~ 150°C (TJ)
MountingType	Surface Mount
SupplierDevicePackage	SOT-23-3

概述

Description

AO3480 is a power MOSFET from Alpha & Omega Semiconductor (AOS). It’s an enhancement-mode N-channel device used as a switching element in power electronics. Typical applications include DC-DC converters, synchronous buck/boost regulators, motor drivers, and other power-switch stages in portable and embedded systems. The device family generally features low gate-threshold, low on-resistance, and high current capability in surface-mount packages (such as SO-8 or DPAK variants). Exact ratings—Vds, Id, Rds(on), gate charge, and thermal limits—depend on the specific package and revision, so the datasheet should be consulted for precise numbers. Design notes: provide proper gate drive voltage, ensure adequate heat sinking or copper area for heat dissipation, and observe safe operating area. If you’d like, I can fetch the latest AO3480 datasheet and summarize the key specifications.

Features

AO3480 features (concise):
- Type: N-channel enhancement-mode MOSFET
- Voltage rating: up to 30V
- RDS(on): very low (a few milliohms typical at VGS ≈ 4.5V)
- Gate threshold: logic-level (typically 1–2.5V)
- Continuous current: capable of several amperes (depends on package and layout)
- Gate drive: low gate charge for fast switching and low drive power
- Switching: fast, suitable for high-efficiency converters
- Protection: robust avalanche energy rating; intrinsic body diode
- Packaging: surface-mount (variants available in common SMT formats such as SOP/SOT-23/TO-style packages)
- Applications: DC-DC converters, load switches, motor drivers, power management
Note: exact values depend on the specific package/revision. Please consult the datasheet for precise numbers.

Package

AO3480 comes in a small SMD SOT-23-3 package (SC-70-3), i.e., a 3-pin SOT-23/SC-70 style MOSFET package.

Pinout

3 pins (G, D, S) in a SOT-23 package. It is an N-channel enhancement‑mode MOSFET used as a switching transistor (drain-source channel controlled by the gate).

Manufacturer

Manufacturer: Alpha & Omega Semiconductor (AOS).
Type of company: AOS is a fabless semiconductor company that designs and supplies power MOSFETs, power-management ICs and related analog/mixed-signal devices for consumer, computing, communications and industrial markets (headquartered in Sunnyvale, California; traded as NASDAQ: AOS).

Application

AO3480 is a power MOSFET. Typical applications include switching power supplies (buck/boost), DC-DC converters, high-side/low-side load switches, motor drivers, lighting drivers, hot-swap/power‑management circuits in consumer electronics, and automotive/industrial control.