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| Part Number | ISL6558IBZ-T | ISL6558IRZ-T | ISL6551IBZ-T | ISL6558IB-T |
|---|---|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc |
| Product Status | Obsolete | Active | Obsolete | Obsolete |
| Output Type | PWM Signal | PWM Signal | Transistor Driver | PWM Signal |
| Function | Step-Down | Step-Down | Step-Up/Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive, Isolation Capable | Positive |
| Topology | Buck | Buck | Full-Bridge | Buck |
| Number of Outputs | 4 | 4 | 1 | 4 |
| Output Phases | 4 | 4 | 1 | 4 |
| Voltage - Supply (Vcc/Vdd) | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 10.8V ~ 13.2V | 4.75V ~ 5.25V |
| Frequency - Switching | 80kHz ~ 1.5MHz | 80kHz ~ 1.5MHz | 50kHz ~ 500kHz | 80kHz ~ 1.5MHz |
| Duty Cycle (Max) | 75% | 75% | 50% | 75% |
| Synchronous Rectifier | - | - | Yes | - |
| Clock Sync | No | No | No | No |
| Serial Interfaces | - | - | - | - |
| Control Features | Enable, Frequency Control, Power Good | Enable, Frequency Control, Power Good | Current Limit, Dead Time Control, Enable, Soft Start | Enable, Frequency Control, Power Good |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 20-VQFN Exposed Pad | 28-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SOIC | 20-QFN (5x5) | 28-SOIC | 16-SOIC |
