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| Part Number | LM2734ZQMK/NOPB | LM2734ZQMKE/NOPB | LM2734ZQMKX/NOPB | LM2734XQMK/NOPB | LM2734YQMK/NOPB | LM2734ZMK/NOPB |
|---|---|---|---|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Active | Obsolete | Active | Active | 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 | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 3V | 3V | 3V | 3V | 3V | 3V |
| Voltage - Input (Max) | 20V | 20V | 20V | 20V | 20V | 20V |
| Voltage - Output (Min/Fixed) | 0.8V | 0.8V | 0.8V | 0.8V | 0.8V | 0.8V |
| Voltage - Output (Max) | 18V | 18V | 18V | 18V | 18V | 18V |
| Current - Output | 1A | 1A | 1A | 1A | 1A | 1A |
| Frequency - Switching | 3MHz | 3MHz | 3MHz | 1.6MHz | 550kHz | 3MHz |
| Synchronous Rectifier | No | No | No | No | No | No |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | SOT-23-6 Thin, TSOT-23-6 | SOT-23-6 Thin, TSOT-23-6 | SOT-23-6 Thin, TSOT-23-6 | SOT-23-6 Thin, TSOT-23-6 | SOT-23-6 Thin, TSOT-23-6 | SOT-23-6 Thin, TSOT-23-6 |
| Supplier Device Package | TSOT-23-6 | TSOT-23-6 | TSOT-23-6 | SOT-23-THIN | TSOT-23-6 | SOT-23-THIN |
