| PartNumber | LTC3128IUFD#PBF | LTC3128IUFD#TRPBF | LTC3129EMSE#PBF |
| Description | Switching Voltage Regulators 3A Monolithic Buck-Boost Supercapacitor Charger and Balancer with Accurate Input Current Limit | Switching Voltage Regulators 3A Monolithic Buck-Boost Supercapacitor Charger and Balancer with Accurate Input Current Limit | Switching Voltage Regulators 15V, 200mA Synchronous Buck-Boost DC/DC Converter w 1uA Quiescent Current |
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | QFN-20 | QFN-20 | MSOP-16 |
| Output Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.4 V to 15.75 V |
| Output Current | 3 A | 3 A | 0.2 A |
| Number of Outputs | 1 Output | 1 Output | 1 Output |
| Input Voltage MAX | 5.5 V | 5.5 V | 15 V |
| Topology | Boost, Buck | Boost, Buck | Buck-Boost |
| Input Voltage MIN | 1.73 V | 1.73 V | 1.92 V |
| Switching Frequency | 1.2 MHz | 1.2 MHz | 1.2 MHz |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Series | LTC3128 | LTC3128 | LTC3129 |
| Packaging | Tube | Reel | Tube |
| Input Voltage | 1.73 V to 5.5 V | 1.73 V to 5.5 V | 1.92 V to 15 V |
| Quiescent Current | 600 uA | 600 uA | 1.3 uA |
| Type | Supercapacitor Charger | Supercapacitor Charger | Switching Regulator |
| Brand | Analog Devices / Linear Technology | Analog Devices / Linear Technology | Analog Devices / Linear Technology |
| Shutdown | Shutdown | Shutdown | Shutdown |
| Development Kit | DC1887A | DC1887A | - |
| Operating Supply Current | 0.6 mA | 0.6 mA | 0.0013 mA |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 73 | 2500 | 37 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.008325 oz | - | 0.011676 oz |
| Supply Voltage Min | - | - | 1.92 V |