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How to Control Phase Voltage Ringing in Synchronous Buck Converters
An Unconditionally Stable Loop for Voltage-mode-controlled Synchronous-buck Converters
| IR HiRel Products |
IR3821M
7A 600KHz High Freq Sync Buck Regulator with Over Current Protection Temperature Shutdown and PGood
Obsolete
Benefits
Wide Input Voltage Range 2.5V to 21V
Single Rail Input Voltage Range 4.5V to 14V
Wide Output Voltage Range 0.6V to 12V
Continuous 7A Load Capability
600kHz High Frequency Operation
Programmable Over-Current Protection
Programmable PGood Output
Hiccup Current Limit
Precision Reference Voltage (0.6V)
Programmable Soft-Start
Pre-Bias Start-up
Thermal Protection
Thermally Enhanced Package
Small Size 5mmx6mm QFN
Pb-Free (RoHS Compliant)
Specifications
| Parameter | Value |
|---|---|
| Base Part Status | Obsolete |
| Circuit | Single Output |
| IOUT (A) | 7 |
| Input Voltage (V) | 2.5 - 21 |
| MSL | 2 |
| OCP OTP UVLO Pre-Bias Soft Start and | PGOOD |
| Output Range (V) | 0.6 - 12 |
| Package | PQFN / 5 x 6 |
| Qual Level | Industrial |
| Switch Freq (kHz) | 600 |
| RoHS | Yes |
| Halogen-Free | Yes |
| Technology | POL |
Technical Papers
PQFN / 5 x 6
Part # IR3821MTR1PBF
7A 600KHz High Freq Sync Buck Regulator with Over Current Protection Temperature Shutdown and PGood
| Packaging Options | Part Number | Status | Standard Pack Quantity |
|---|---|---|---|
| An IR3821M with Lead Free Packaging | IR3821MPBF | OBSOLETE | 5 |
| Similar to IR3821MPBF shipped on Tape and Reel | IR3821MTR1PBF | OBSOLETE | 750 |
| Similar to IR3821MPBF shipped on Tape and Reel | IR3821MTRPBF | OBSOLETE | 4000 |