| Part Number | LM2591HVS-ADJ | LM2593HVS-ADJ | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | 
|   |   | |
| Product Status | Not For New Designs | Not For New Designs | 
| Function | Step-Down | Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck | Buck | 
| Output Type | Adjustable | Adjustable | 
| Number of Outputs | 1 | 1 | 
| Voltage - Input (Min) | 4.5V | 4.5V | 
| Voltage - Input (Max) | 60V | 60V | 
| Voltage - Output (Min/Fixed) | 1.2V | 1.2V | 
| Voltage - Output (Max) | 57V | 57V | 
| Current - Output | 1A | 2A | 
| Frequency - Switching | 150kHz | 150kHz | 
| Synchronous Rectifier | No | No | 
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-8, D²Pak (7 Leads + Tab), TO-263CA | 
| Supplier Device Package | DDPAK/TO-263-5 | DDPAK/TO-263-7 |