| Part Number | ISL6551IR | ISL6558IR |
|---|---|---|
| Manufacturer | Intersil | Renesas Electronics America Inc |
| Category | PMIC - Voltage Regulators - DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers |
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| Product Status | Obsolete | Obsolete |
| Output Type | Transistor Driver | PWM Signal |
| Function | Step-Up/Step-Down | Step-Down |
| Output Configuration | Positive, Isolation Capable | Positive |
| Topology | Full-Bridge | Buck |
| Number of Outputs | 1 | 4 |
| Output Phases | 1 | 4 |
| Voltage - Supply (Vcc/Vdd) | 10.8V ~ 13.2V | 4.75V ~ 5.25V |
| Frequency - Switching | 50kHz ~ 500kHz | 80kHz ~ 1.5MHz |
| Duty Cycle (Max) | 50% | 75% |
| Synchronous Rectifier | Yes | - |
| Clock Sync | No | No |
| Serial Interfaces | - | - |
| Control Features | Current Limit, Dead Time Control, Enable, Soft Start | Enable, Frequency Control, Power Good |
| Operating Temperature | 0°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-VQFN Exposed Pad | 20-VQFN Exposed Pad |
| Supplier Device Package | 28-QFN (6x6) | 20-QFN (5x5) |