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| Part Number | ISL91127IRAZ-T | ISL91127IIAZ-T | 
|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | 
| Product Status | Active | Active | 
| Function | Step-Up, Step-Down | Step-Up/Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck-Boost | Buck-Boost | 
| Output Type | Adjustable (Fixed) | - | 
| Number of Outputs | 1 | 1 | 
| Voltage - Input (Min) | 1.8V | 1.8V | 
| Voltage - Input (Max) | 5.5V | 5.5V | 
| Voltage - Output (Min/Fixed) | 1V | - | 
| Voltage - Output (Max) | 5.2V | - | 
| Current - Output | 2A | 2.1A | 
| Frequency - Switching | 2.5MHz | 2.5MHz | 
| Synchronous Rectifier | Yes | Yes | 
| Operating Temperature | -40°C ~ 85°C (TA) | - | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 20-VFQFN Exposed Pad | 20-UFBGA, WLCSP | 
| Supplier Device Package | 20-QFN (4x4) | 20-WLCSP (2.15x1.74) |