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| Part Number | ADP1821ARQZ-R7 | ADP1822ARQZ-R7 | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Product Status | Active | Active | 
| Output Type | Transistor Driver | Transistor Driver | 
| Function | Step-Down | Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck | Buck | 
| Number of Outputs | 1 | 1 | 
| Output Phases | 1 | 1 | 
| Voltage - Supply (Vcc/Vdd) | 3.7V ~ 5.5V | 3.7V ~ 5.5V | 
| Frequency - Switching | 310kHz, 570kHz | 310kHz, 570kHz | 
| Duty Cycle (Max) | 90% | - | 
| Synchronous Rectifier | Yes | Yes | 
| Clock Sync | Yes | Yes | 
| Serial Interfaces | - | - | 
| Control Features | Enable, Frequency Control, Power Good, Soft Start | Enable, Frequency Control, Margining, Power Good, Soft Start, Tracking | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 16-SSOP (0.154", 3.90mm Width) | 24-SSOP (0.154", 3.90mm Width) | 
| Supplier Device Package | 16-QSOP | 24-QSOP |