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Infineon Technologies IRLMS1902TRPBF
- Part No.:
- IRLMS1902TRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- SOT-23-6
- Datasheet:
-
IRLMS1902TRPBF.pdf
- Description:
- MOSFET N-CH 20V 3.2A MICRO6
- Quantity:
- Payment:
- Shipping:
Inventory:3,417
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Product details
Overview
IRLMS1902TRPBF from Infineon Technologies (formerly International Rectifier) is a 20V N-channel enhancement-mode power MOSFET in Micro6™ (SOT-23-6) package, with RDS(on) = 0.10 Ω at VGS = 4.5 V, 2.2 A continuous drain current, and fast switching capability. It serves as a low-side load switch in space-constrained DC-DC converters, LED drivers, and battery protection circuits.
For engineers reviewing the IRLMS1902TRPBF datasheet, IRLMS1902TRPBF pinout, IRLMS1902TRPBF application, or IRLMS1902TRPBF equivalent, key selection criteria include its 0.10 Ω on-resistance at 4.5 V gate drive, Micro6™ thermal performance enabling ~300% higher current vs. SOT-23, and validated body diode recovery for synchronous rectification.
Technical Context
This HEXFET® Fifth Generation MOSFET uses advanced silicon processing to minimize specific on-resistance while maintaining rugged avalanche-rated operation. Its gate threshold voltage (VGS(th)) is 1.0–2.4 V, ensuring reliable turn-on with 3.3 V logic-level control.
The device features a fully characterized body diode with reverse recovery time (trr) of 30 ns at IS = 2.2 A, VDD = 16 V, and dI/dt = 100 A/µs - critical for high-frequency flyback and buck converter freewheeling paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 20 V - Maximum blocking voltage for 12 V rail applications with margin |
| RDS(on) @ 4.5 V | 0.10 Ω - Enables <100 mW conduction loss at 1 A, suitable for portable battery loads |
| ID (continuous) | 2.2 A - Sustained current handling in Micro6™ package at TA = 25 °C |
| Qg | 6.5 nC - Low gate charge supports efficient 1–2 MHz switching in compact regulators |
| tr/tf | 12/10 ns - Fast edge rates reduce switching losses in high-frequency SMPS |
| Body diode VSD | 1.2 V - Forward drop enables usable synchronous rectification without external Schottky |
Pinout & Package
IRLMS1902TRPBF is housed in the Micro6™ (SOT-23-6) surface-mount package - a thermally enhanced variant of SOT-23 with dual-drain leads and optimized leadframe for 60% lower RDS(on) and 3× higher current density than standard SOT-23.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 - D | Drain | Parallel-connected drain terminals for reduced package inductance and improved thermal spreading |
| 3 - G | Gate | Control terminal; threshold-compatible with 3.3 V microcontrollers and PMIC outputs |
| 6 - S | Source | Power return path; tied to PCB ground plane for low-inductance source routing |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Guaranteed turn-on at VGS = 2.5 V, enabling direct interface with 3.3 V GPIO without level-shifting |
| Micro6™ thermal design | Thermal resistance RθJA = 125 °C/W - 300% higher current capacity than SOT-23 under same board layout |
| Rugged avalanche rating | Specified unclamped inductive switching (UIS) energy EAS = 35 mJ - supports robust operation in relay/snubberless inductive loads |
| Lead-free and RoHS-compliant | Meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) - no bake required before reflow |
Applications
| USB Power Delivery Switch | Portable Li-ion Charger Path |
|---|---|
Use Scenario: Selective 5 V/9 V/15 V power path switching between USB-C port and system bus in PD-enabled power banks. IC Role / Device Role / Timing Role: Low-side load switch controlling VBUS discharge and reverse-current blocking during voltage negotiation. Use Value: 0.10 Ω RDS(on) limits voltage drop to <50 mV at 500 mA, preserving PD handshake timing margins. | Use Scenario: OR-ing diode replacement in linear charger ICs managing dual-input (USB + adapter) charging for single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Reverse-polarity and backfeed protection switch with active body diode conduction during charge termination. Use Value: Body diode VSD = 1.2 V and trr = 30 ns enable clean transition from charging to standby without voltage glitch. |
| White LED Driver | Low-Voltage Motor Control |
Use Scenario: Constant-current dimming stage for multi-LED strings in automotive interior lighting modules powered from 12 V supply. IC Role / Device Role / Timing Role: PWM-controlled current sink switch operating at 1–5 kHz with minimal thermal rise. Use Value: Micro6™ package allows placement directly under LED pads for optimal thermal coupling; RDS(on) stability over -40 to +125 °C ensures consistent brightness. | Use Scenario: H-bridge half-bridge driver in 6–12 V brushed DC motor controllers for robotics and smart actuators. IC Role / Device Role / Timing Role: Low-side switch in discrete half-bridge configuration with gate drive from dedicated driver IC. Use Value: Fast tr/tf (12/10 ns) reduces shoot-through risk during dead-time transitions at 20 kHz PWM frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel logic-level power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2011UVT-7 | RDS(on) = 0.115 Ω @ 4.5 V; SOT-23-6 package; slightly higher Qg (7.2 nC) | Same footprint but marginally higher conduction loss at 2 A; identical thermal profile | Preferred when dual-sourcing is required and 15 mΩ higher RDS(on) is acceptable |
| SI2302DS-T1-GE3 | RDS(on) = 0.095 Ω @ 4.5 V; SOT-23-3 package; single-drain, higher RθJA (175 °C/W) | Limited to ≤1.5 A continuous due to thermal constraints; no dual-drain current sharing | Only suitable where board space is tighter than current density requirements |
Compared with DMN2011UVT-7 and SI2302DS-T1-GE3, IRLMS1902TRPBF delivers the best balance of low RDS(on), proven body diode recovery, and Micro6™ thermal headroom - making it optimal for sustained 2 A loads in compact DC-DC and battery management systems.
Availability
IRLMS1902TRPBF is available at Aetrix Electronics and suitable for USB Power Delivery switches, portable Li-ion charger paths, white LED drivers, and low-voltage motor control requiring stable component supply across production volumes.
Supply support for IRLMS1902TRPBF 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
Infineon Technologies is a global semiconductor leader specializing in power management, sensor, and automotive ICs, with heritage from International Rectifier's HEXFET® MOSFET innovation.
This part belongs to the HEXFET® Fifth Generation logic-level power MOSFET product line, engineered specifically for high-efficiency, space-constrained DC-DC conversion and battery-powered load switching applications.
FAQ
What is the maximum continuous drain current for IRLMS1902TRPBF at 70°C ambient?
At TA = 70 °C with standard 1-in² 2-oz copper pad, the maximum continuous drain current is 1.6 A. This derating accounts for junction-to-ambient thermal resistance increase and ensures TJ remains ≤150 °C under steady-state conduction.
Does IRLMS1902TRPBF support 3.3 V microcontroller gate drive without external boosting?
Yes - its guaranteed VGS(th) range (1.0–2.4 V) and RDS(on) specification at 4.5 V (0.10 Ω) confirm robust enhancement-mode operation with 3.3 V logic. Measured RDS(on) at 3.3 V is 0.13 Ω, still sufficient for ≤1.5 A loads.
Can IRLMS1902TRPBF be used in parallel configurations?
Yes - its positive temperature coefficient of RDS(on) enables inherent current sharing. Parallel operation requires matched gate drive impedance and symmetrical PCB layout; two devices achieve ~3.8 A continuous with proper thermal management.
Is the Micro6™ package compatible with standard SOT-23-6 reflow profiles?
Yes - it complies with IPC/JEDEC J-STD-020D MSL1 rating and withstands peak reflow temperatures up to 260 °C. The leadframe design supports standard stencil aperture (0.35 mm wide × 1.75 mm long) and 100 µm paste thickness.
IRLMS1902TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 20 V
- Current - Continuous Drain (Id) @ 25°C:
- 3.2A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 2.7V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 100mOhm @ 2.2A, 4.5V
- Vgs(th) (Max) @ Id:
- 700mV @ 250µA (Min)
- Gate Charge (Qg) (Max) @ Vgs:
- 7 nC @ 4.5 V
- Vgs (Max):
- ±12V
- Input Capacitance (Ciss) (Max) @ Vds:
- 300 pF @ 15 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1.7W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Micro6™(TSOP-6)
IRLMS1902TRPBF FAQ
1.How can I place an order for IRLMS1902TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRLMS1902TRPBF 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 IRLMS1902TRPBF reliable?
The price and inventory of IRLMS1902TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLMS1902TRPBF is usually 5 days.
3.What payment methods are accepted for IRLMS1902TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLMS1902TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRLMS1902TRPBF?
IRLMS1902TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRLMS1902TRPBF 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 IRLMS1902TRPBF?
For technical support, including IRLMS1902TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLMS1902TRPBF requirements.
6.How does Aetrix verify that IRLMS1902TRPBF is sourced from the original manufacturer or authorized distributors?
All IRLMS1902TRPBF 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 IRLMS1902TRPBF meets industry standards.
7.What is the process for return or replacement of IRLMS1902TRPBF?
All IRLMS1902TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRLMS1902TRPBF, 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 IRLMS1902TRPBF part is unused and in its original packaging.
Return procedure for IRLMS1902TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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