Articles
An Unconditionally Stable Loop for Voltage-mode-controlled Synchronous-buck Converters
How to Control Phase Voltage Ringing in Synchronous Buck Converters
| IR HiRel Product Families |
IR3856WM
Highly Efficient Integrated 6A Sync Buck Regulator
Obsolete
Benefits
Greater than 95% Maximum Efficiency
Wide Input Voltage Range 1.5V to 16V
Wide Output Voltage Range 0.7V to 0.9*Vin
Continuous 6A Load Capability
Integrated Bootstrap-diode
High Bandwidth E/A for excellent transient performance
Programmable Switching Frequency up to 1.5MHz
Programmable Over Current Protection
PGood output
Hiccup Current Limit
Precision Reference Voltage (0.7V, ±1%)
Programmable Soft-Start
Enable Input with Voltage Monitoring Capability
Enhanced Pre-Bias Start-up
Seq input for Tracking applications
-40°C to 125°C operating junction temperature
Thermal Protection
4mm x 5mm Power QFN Package
Halogen Free, Lead Free and RoHS compliant
Specifications
| Parameter | Value |
|---|---|
| Base Part Status | Obsolete |
| Circuit | Single Output |
| IOUT (A) | 6 |
| Input Voltage (V) | 1.5 - 16 |
| MSL | 2 |
| OCP OTP UVLO Pre-Bias Soft Start and | PGOOD + EN + SEQ + OVD |
| Output Range (V) | 0.7 - 0.9*Vin |
| Package | PQFN / 4 x 5 |
| Qual Level | Industrial |
| Switch Freq (kHz) | 0 - 750 |
| Vout (Max) | 19.0 |
| Vout (Min) | 0.7 |
| RoHS | Yes |
| Halogen-Free | No |
| 1k Budgetary Pricing | 1.562 |
| Base Station Telecom | Yes |
| Routers Switches | Yes |
| Server Storage | Yes |
| Technology | POL |
Featured Kit
A IRDC3856W with Standard Packaging
Part # IRDC3856W
Package Support
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Design Tools
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Schematic Capture, AC, Steady State, Transient Analysis, Thermal Analysis, BOM creation
Technical Papers
PQFN / 4 x 5
Part # IR3856WMTR1PBF
Highly Efficient Integrated 6A Sync Buck Regulator
$1.561K Budgetary
Pricing (USD):
| Packaging Options | Part Number | Status | Standard Pack Quantity |
|---|---|---|---|
| An IR3856WM with Lead Free packaging shipped on Tape and Reel | IR3856WMTR1PBF | OBSOLETE | 750 |
| An IR3856WM with Lead Free packaging shipped on Tape and Reel | IR3856WMTRPBF | OBSOLETE | 4000 |
| Bulk | IR3856WMPBF | OBSOLETE | 5 |