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| Part Number | ISL6552CBZ | ISL6558CBZ | ISL6553CBZ | ISL6552CBZA | ISL6552CRZ | ISL6559CBZ | ISL6552CB | 
|---|---|---|---|---|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Intersil | Intersil | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Intersil | 
| Product Status | Obsolete | Active | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | 
| Output Type | PWM Signal | - | PWM Signal | PWM Signal | PWM Signal | PWM Signal | PWM Signal | 
| Function | Step-Down | - | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down | 
| Output Configuration | Positive | - | Positive | Positive | Positive | Positive | Positive | 
| Topology | Buck | - | Buck | Buck | Buck | Buck | Buck | 
| Number of Outputs | 4 | - | 2 | 4 | 4 | 4 | 4 | 
| Output Phases | 4 | - | 2 | 4 | 4 | 4 | 4 | 
| Voltage - Supply (Vcc/Vdd) | 4.75V ~ 5.25V | - | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 
| Frequency - Switching | 50kHz ~ 1.5MHz | - | 50kHz ~ 1.5MHz | 50kHz ~ 1.5MHz | 50kHz ~ 1.5MHz | 80kHz ~ 1MHz | 50kHz ~ 1.5MHz | 
| Duty Cycle (Max) | - | - | - | - | - | 75% | - | 
| Synchronous Rectifier | - | - | - | - | - | - | - | 
| Clock Sync | No | - | No | No | No | No | No | 
| Serial Interfaces | - | - | - | - | - | - | - | 
| Control Features | Enable, Frequency Control, Power Good | - | Enable, Frequency Control, Power Good | Enable, Frequency Control, Power Good | Enable, Frequency Control, Power Good | Current Limit, Enable, Frequency Control, Power Good | Enable, Frequency Control, Power Good | 
| Operating Temperature | 0°C ~ 70°C (TA) | - | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 
| Mounting Type | Surface Mount | - | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | - | 16-SOIC (0.154", 3.90mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-VQFN Exposed Pad | 28-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 
| Supplier Device Package | 20-SOIC | - | 16-SOIC | 20-SOIC | 20-QFN (5x5) | 28-SOIC | 20-SOIC |