| Base Product Number | LTC3891 |
| Category | Integrated Circuits (ICs) |
| Clock Sync | No |
| Control Features | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking |
| Description | IC REG CTRLR BUCK 20TSSOP |
| Detailed Description | Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-TSSOP-EP |
| Digi-Key Part Number | 505-LTC3891EFE#PBF-ND |
| Dimensions | 6.6 x 4.5 x 1.05mm |
| Duty Cycle (Max) | 99% |
| Frequency - Switching | 105kHz ~ 835kHz, 350kHz ~ 535kHz |
| Function | Step-Down |
| Height | 1.05mm |
| Length | 6.6mm |
| Line Regulation | 0.02 %/V |
| Load Regulation | 0.1 % |
| Manufacturer Product Number | LTC3891EFE#PBF |
| Manufacturer Standard Lead Time | 13 Weeks |
| Manufacturer, Mfr | Analog Devices Inc. |
| Maximum Input Voltage | 60 V |
| Maximum Operating Temperature | +125 ?C |
| Maximum Output Current | 5A |
| Maximum Output Voltage | 24 V |
| Maximum Switching Frequency | 585 kHz |
| Minimum Input Voltage | 4 V |
| Minimum Operating Temperature | -40 ?C |
| Minimum Output Voltage | 0.8 V |
| Mounting Type | Surface Mount |
| Number of Outputs, Output Phases | 1 |
| Operating Temperature | -40?C ~ 125?C (TJ) |
| Output Configuration | Positive |
| Output Type | Transistor Driver, Adjustable |
| Package | Tube |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Package Type | TSSOP |
| Pin Count | 20 |
| Product Status | Active |
| Regulator Function | Step Down |
| Serial Interfaces, Series | - |
| Supplier Device Package | 20-TSSOP-EP |
| Switching Regulator, Synchronous Rectifier | Yes |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) | 4V ~ 60V |
| Width | 4.5mm |