| Part Number | UC2825Q | UC2823Q | 
|---|---|---|
| Manufacturer | Unitrode | Texas Instruments | 
| Category | PMIC - Voltage Regulators - DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers | 
|   |   | |
| Product Status | Active | Obsolete | 
| Output Type | Transistor Driver | Transistor Driver | 
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | - | Buck, Boost, Flyback, Forward Converter | 
| Number of Outputs | 2 | 1 | 
| Output Phases | 1 | 1 | 
| Voltage - Supply (Vcc/Vdd) | 8.4V ~ 30V | 8.4V ~ 30V | 
| Frequency - Switching | 340kHz ~ 460kHz | 340kHz ~ 460kHz | 
| Duty Cycle (Max) | 80% | 80% | 
| Synchronous Rectifier | No | No | 
| Clock Sync | No | No | 
| Serial Interfaces | - | - | 
| Control Features | Current Limit, Enable, Frequency Control, Ramp, Soft Start | Current Limit, Enable, Frequency Control, Ramp, Soft Start | 
| Operating Temperature | -40°C ~ 85°C (TA) | -25°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 20-LCC (J-Lead) | 20-LCC (J-Lead) | 
| Supplier Device Package | 20-PLCC (8.96x8.96) | 20-PLCC (9x9) |