| PartNumber | MAX668EUB+ | MAX668EUB+T | MAX6689UP9A+T |
| Description | Switching Controllers 1.8V to 28V Step-Up | Switching Controllers 1.8V to 28V Step-Up | Board Mount Temperature Sensors 7Ch Precision Temperature Monito |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Switching Controllers | Switching Controllers | Temperature Sensors, Transducers |
| RoHS | Y | Y | - |
| Topology | Boost, Flyback | Boost | - |
| Number of Outputs | 1 Output | 1 Output | - |
| Switching Frequency | 100 kHz to 500 kHz | 500 kHz | - |
| Duty Cycle Max | 94 % | 94 % | - |
| Output Voltage | 3 V to 28 V | 3 V to 28 V | - |
| Output Current | 1000 mA | 1000 mA | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 125 C |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | UMAX-10 | UMAX-10 | - |
| Packaging | Tube | Reel | Tape & Reel (TR) Alternate Packaging |
| Series | MAX668 | MAX668 | MAX6689 |
| Type | Current Mode PWM Controllers | Current Mode PWM Controllers | - |
| Brand | Maxim Integrated | Maxim Integrated | - |
| Development Kit | MAXREFDES9# | MAXREFDES9# | - |
| Operating Supply Current | 0.22 mA | 0.22 mA | - |
| Operating Supply Voltage | 3 V to 28 V | 28 V | - |
| Product Type | Switching Controllers | Switching Controllers | - |
| Factory Pack Quantity | 50 | 2500 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |
| Part # Aliases | MAX668 | MAX668 | MAX6689 |
| Unit Weight | 0.000705 oz | 0.000811 oz | - |
| Input Voltage | - | 28 V | - |
| Isolation | - | Isolated | - |
| Output Type | - | Adjustable | SMBus |
| Product | - | PWM Step-Up Controllers | Multichannel Sensor |
| Shutdown | - | Shutdown | - |
| Fall Time | - | 200 ns | - |
| Rise Time | - | 200 ns | - |
| Package Case | - | - | TSSOP-20 |
| Operating Temperature | - | - | -40°C ~ 125°C |
| Features | - | - | One-Shot, Output Switch, Programmable Limit, Shutdown Mode, Standby Mode |
| Voltage Supply | - | - | 3 V ~ 5.5 V |
| Supplier Device Package | - | - | 20-TSSOP |
| Configuration | - | - | Local Remote |
| Resolution | - | - | 11 b (Local), 8 b (Remote) |
| Accuracy | - | - | +/- 1 C to +/- 3 C |
| Sensor Type | - | - | Digital, Local/Remote |
| Test Condition | - | - | 60°C ~ 100°C (0°C ~ 125°C) |
| Sensing Temperature Local | - | - | -40°C ~ 125°C |
| Sensing Temperature Remote | - | - | -40°C ~ 125°C |
| Accuracy Highest Lowest | - | - | -3.3°C, 0.7°C (-5°C, 1°C) |
| Interface Type | - | - | 2-Wire I2C SMBus |
| Supply Voltage Max | - | - | 5.5 VDC |
| Supply Voltage Min | - | - | 3 VDC |