IR3621FTR
IC REG CTRLR BUCK 28TSSOP
Pmic Voltage Regulators Dc Dc Switching Controllers
28-TSSOP (0.173", 4.40mm Width)
Obsolete
$2.42 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Infineon Technologies |
| Model | IR3621FTR |
| Package / Case | 28-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Topology | Buck |
| Frequency - Switching | 200kHz ~ 500kHz |
| Number of Outputs | 2 |
| Supplier Device Package | 28-TSSOP |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
IR3621FTR by Infineon Technologies is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to N/A, output adjustable. The 28-TSSOP (0.173", 4.40mm Width) package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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Alternatives & Replacements
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IC REG CTRLR BOOST 29TSSOP
LM2657MTCX/NOPB
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All Technical Specifications
| Function | Step-Down |
| Topology | Buck |
| Clock Sync | Yes |
| Output Type | Transistor Driver |
| Output Phases | 2 |
| Control Features | Frequency Control, Power Good, Soft Start |
| Duty Cycle (Max) | 86.5% |
| Number of Outputs | 2 |
| Output Configuration | Positive |
| Frequency - Switching | 200kHz ~ 500kHz |
| Synchronous Rectifier | Yes |
| Voltage - Supply (Vcc/Vdd) | 5.5V ~ 14.5V |
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