| Part Number | LM2734XQMK/NOPB | LM2734ZQMK/NOPB | 
|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | 
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | 
|   |   | |
| Product Status | Active | Obsolete | 
| Function | Step-Down | Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck | Buck | 
| Output Type | Adjustable | Adjustable | 
| Number of Outputs | 1 | 1 | 
| Voltage - Input (Min) | 3V | 3V | 
| Voltage - Input (Max) | 20V | 20V | 
| Voltage - Output (Min/Fixed) | 0.8V | 0.8V | 
| Voltage - Output (Max) | 18V | 18V | 
| Current - Output | 1A | 1A | 
| Frequency - Switching | 1.6MHz | 3MHz | 
| Synchronous Rectifier | No | No | 
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | SOT-23-6 Thin, TSOT-23-6 | SOT-23-6 Thin, TSOT-23-6 | 
| Supplier Device Package | SOT-23-THIN | TSOT-23-6 |