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| Part Number | L4972A | L4972AD | L4974A | L4975A | L4902A | L4970A |
|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Last Time Buy | Last Time Buy | Last Time Buy | Active | Obsolete | Active |
| 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 |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable | Fixed | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 2 | 1 |
| Voltage - Input (Min) | 15V | 15V | 15V | 15V | - | 15V |
| Voltage - Input (Max) | 50V | 50V | 50V | 50V | 24V | 50V |
| Voltage - Output (Min/Fixed) | 5.1V | 5.1V | 5.1V | 5.1V | 5V | 5.1V |
| Voltage - Output (Max) | 40V | 40V | 40V | 40V | - | 40V |
| Current - Output | 2A | 2A | 3.5A | 5A | 300mA | 10A |
| Frequency - Switching | 100kHz ~ 200kHz | 100kHz ~ 200kHz | 100kHz ~ 200kHz | 200kHz ~ 500kHz | - | 200kHz |
| Synchronous Rectifier | No | No | No | No | No | No |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | Surface Mount | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | 20-DIP (0.300", 7.62mm) | 20-SOIC (0.295", 7.50mm Width) | 20-DIP (0.300", 7.62mm) | Multiwatt-15 (Vertical, Bent and Staggered Leads) | Heptawatt-7 (Vertical, Bent and Staggered Leads) | Multiwatt-15 (Vertical, Bent and Staggered Leads) |
| Supplier Device Package | 20-PowerDIP | 20-SO | 20-PowerDIP | 15-Multiwatt | 7-HEPTAWATT | 15-Multiwatt |
