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

STMicroelectronics STL220N3LLH7

Name: STL220N3LLH7
Brand: STMicroelectronics
SKU: STL220N3LLH7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STL220N3LLH7

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: 8-PowerVDFN

Datasheet:: STL220N3LLH7.pdf

Description:: MOSFET N-CH 30V 220A POWERFLAT

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STL220N3LLH7 from STMicroelectronics is an N-channel 30 V Power MOSFET in PowerFLAT™ 5×6 package, featuring 0.00081 Ω typ. R_DS(on) at V_GS = 10 V, 50 A continuous drain current at T_pcb = 25 °C, and 46 nC total gate charge - optimized for high-efficiency DC-DC converters and motor drive half-bridges.

For engineers reviewing the STL220N3LLH7 datasheet, STL220N3LLH7 pinout, STL220N3LLH7 application, or STL220N3LLH7 equivalent, key selection criteria include low R_DS(on) at 4.5 V gate drive, high pulsed current capability (880 A), avalanche ruggedness, thermal resistance to PCB (31.3 °C/W), and PowerFLAT™ 5×6 footprint compatibility with high-current layout requirements.

Technical Context

This MOSFET employs ST's STripFET™ VII DeepGATE™ process to minimize conduction loss and switching energy simultaneously. Its low Q_g (46 nC) and ultra-low Cr_ss (72 pF) enable fast, low-loss switching in synchronous buck stages operating up to 1 MHz.

The device integrates a robust body diode with 66 ns reverse recovery time and 101 nC Q_rr, supporting hard-switched inductive loads without external freewheeling diodes in many applications. Junction-to-case thermal resistance of 1.1 °C/W supports direct heatsinking via exposed drain pad.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - maximum blocking voltage compatible with 24 V industrial bus and 12 V automotive auxiliary rails
R_DS(on) typ.	0.00081 Ω @ V_GS = 10 V - enables <1 W conduction loss at 50 A, critical for thermally constrained PCBs
Q_g	46 nC - reduces gate drive power and allows use of low-power drivers in high-frequency SMPS
I_D cont. (T_pcb = 25 °C)	50 A - defines usable current capacity under standard double-sided FR-4 board cooling
R_thj-pcb	31.3 °C/W - quantifies thermal bottleneck when mounted on 1 in², 2 oz Cu PCB; dictates minimum copper area needed
t_r/t_f	115 ns / 51 ns - supports clean edge control in 500 kHz–1 MHz switching with minimal EMI generation
V_SD	1 V @ I_SD = 50 A - forward voltage of integrated body diode, directly impacts freewheeling loss in synchronous rectification

Pinout & Package

STL220N3LLH7 uses the PowerFLAT™ 5×6 package - a surface-mount, thermally enhanced leadless package with an exposed drain pad on the bottom side for direct PCB thermal coupling. The top-side marking "220N3LL7" identifies the device. Package dimensions comply with JEDEC MO-229, with recommended footprint per Figure 20 (D2 = 4.11–4.31 mm, E2 = 3.50–3.70 mm, e = 1.27 mm pitch).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	Source	Low-side return path; electrically and thermally connected to large internal source metal; must be routed to ground plane
4	Gate	Control input requiring low-impedance drive; sensitive to ringing due to low R_g (0.61–1.8 Ω); needs local 100 nF decoupling
5, 6, 7, 8	Drain	High-current power node; tied internally to exposed copper pad on bottom; requires full-surface solder mask opening and thermal vias

Key Features

Feature	Design Value
Ultra-low R_DS(on) at 4.5 V	0.00115 Ω typ. - enables efficient operation with 5 V logic-level gate drivers in battery-powered systems
High avalanche energy rating	Unclamped inductive switching tested per Figure 16 - ensures reliability in motor drive fault conditions without external snubbers
Optimized gate charge profile	Q_gs = 26 nC, Q_gd = 10 nC - provides Miller plateau control for predictable turn-on/turn-off timing
Enhanced body diode performance	Q_rr = 101 nC, t_rr = 66 ns - reduces switching loss and voltage overshoot during commutation in half-bridge configurations

Applications

Motor Drive Half-Bridge

DC-DC Synchronous Buck Converter

Use Scenario: High-current BLDC motor phase leg in 24 V industrial actuators with PWM frequencies up to 20 kHz.

IC Role / Device Role / Timing Role: Low-side switch in complementary pair; handles bidirectional current during PWM dead-time and regenerative braking.

Use Value: 0.00081 Ω R_DS(on) limits conduction loss to ≤0.2 W at 16 A RMS; 880 A pulsed rating withstands stall currents.

Use Scenario: Output stage of 12 V → 1.2 V, 40 A point-of-load converter for FPGA core supply.

IC Role / Device Role / Timing Role: Synchronous rectifier; conducts during low-side interval with precise timing controlled by controller's gate signal.

Use Value: 1 V V_SD and 66 ns t_rr reduce freewheeling loss vs. Schottky alternatives; 46 nC Q_g enables 1 MHz operation with minimal driver loss.

Hot-Swap Controller

Power OR'ing Circuit

Use Scenario: Inrush-limited 24 V backplane insertion in telecom shelf management units.

IC Role / Device Role / Timing Role: Main pass element; biased in linear region during soft-start, then fully enhanced for steady-state conduction.

Use Value: 150 °C max junction temperature and 1.1 °C/W R_thj-case allow safe linear-mode operation with external heatsink; low R_DS(on) minimizes dropout voltage.

Use Scenario: Redundant 12 V power rail combining from dual DC supplies in network switches.

IC Role / Device Role / Timing Role: Ideal diode replacement; oriented anode-to-cathode to block reverse current while conducting forward with near-zero forward drop.

Use Value: 0.0011 Ω R_DS(on) yields <0.5 mV drop at 5 A - significantly lower than discrete diode forward voltage; supports bidirectional current sensing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel 30 V Power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRLHS6342TRPbF	R_DS(on) = 0.00095 Ω @ 4.5 V; Q_g = 32 nC; PowerSO-8 package (higher R_thj-pcb = 45 °C/W)	Limited to ≤30 A continuous on standard PCB; less suitable for >500 kHz switching due to higher Cr_ss	Prefer for cost-sensitive, lower-current designs where gate drive power is critical and thermal margin is ample.
SIS840DT-T1-GE3	R_DS(on) = 0.00075 Ω @ 4.5 V; Q_g = 52 nC; PowerPAK® SO-8L (R_thj-pcb = 35 °C/W)	Lower on-resistance but higher Q_g; slightly larger footprint; no avalanche rating specified	Prefer when ultimate conduction efficiency is prioritized over switching loss and ruggedness in non-fault-prone environments.

Compared with IRLHS6342TRPbF and SIS840DT-T1-GE3, STL220N3LLH7 delivers superior avalanche ruggedness and lower thermal resistance to PCB - making it preferred for motor drives and hot-swap applications where transient stress and board-level heat dissipation are critical constraints.

Availability

STL220N3LLH7 is available at Aetrix Electronics and suitable for motor drive half-bridges, DC-DC synchronous buck converters, and hot-swap controllers requiring stable component supply across industrial OEM production cycles.

Supply support for STL220N3LLH7 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for industrial, automotive, and consumer markets.

This device belongs to ST's STripFET™ VII Power MOSFET product line - engineered specifically for high-current, high-frequency power conversion in space-constrained industrial and computing applications.

FAQ

What is the maximum continuous drain current for STL220N3LLH7 under standard PCB mounting?

The datasheet specifies 50 A continuous drain current (I_D) when mounted on a standard FR-4 PCB of 1 in² with 2 oz copper at T_pcb = 25 °C. This rating assumes no external heatsink and reflects practical board-level thermal limits - not junction temperature alone. At T_pcb = 100 °C, the rating drops to 32 A due to thermal derating.

Does STL220N3LLH7 support 5 V gate drive in logic-level applications?

Yes - R_DS(on) is characterized at V_GS = 4.5 V (0.00115 Ω typ.), confirming reliable enhancement with standard 5 V microcontroller outputs. Gate threshold voltage (V_GS(th)) ranges from 1.2 V to 2.2 V, ensuring turn-on well within logic-high margins. However, full 0.00081 Ω performance requires 10 V drive.

How is thermal performance validated for STL220N3LLH7 on PCB?

Thermal resistance is measured per JEDEC JESD51-2 and JESD51-14 standards: R_thj-pcb = 31.3 °C/W is defined for a 1 in², 2 oz copper pad with thermal vias. This value is validated using transient dual-interface testing and correlates to actual board temperature rise under DC load. R_thj-case = 1.1 °C/W is measured with case contact to a cold plate.

Is the body diode suitable for synchronous rectification without external components?

Yes - the integrated body diode is characterized with t_rr = 66 ns and Q_rr = 101 nC at I_SD = 50 A, enabling use in synchronous rectification without external diodes in buck converters up to ~1 MHz. Its soft recovery behavior minimizes voltage spikes, though layout optimization (short loop paths, ground plane integrity) remains essential.

STL220N3LLH7 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: DeepGATE™, STripFET™ VII

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 220A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.1mOhm @ 25A, 10V

Vgs(th) (Max) @ Id:: 2.2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 46 nC @ 4.5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 8650 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 113W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PowerFlat™ (5x6)

STL220N3LLH7 FAQ

1.How can I place an order for STL220N3LLH7 through Aetrix?

Please submit a Request for Quotation (RFQ) for STL220N3LLH7 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 STL220N3LLH7 reliable?

The price and inventory of STL220N3LLH7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STL220N3LLH7 is usually 5 days.

3.What payment methods are accepted for STL220N3LLH7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STL220N3LLH7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STL220N3LLH7?

STL220N3LLH7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STL220N3LLH7 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 STL220N3LLH7?

For technical support, including STL220N3LLH7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STL220N3LLH7 requirements.

6.How does Aetrix verify that STL220N3LLH7 is sourced from the original manufacturer or authorized distributors?

All STL220N3LLH7 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 STL220N3LLH7 meets industry standards.

7.What is the process for return or replacement of STL220N3LLH7?

All STL220N3LLH7 units undergo pre-shipment inspection (PSI). If there is an issue with STL220N3LLH7, 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 STL220N3LLH7 part is unused and in its original packaging.

Return procedure for STL220N3LLH7:

1.Submit a request within 90 days.

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

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