IC POWER MANAGEMENT
| Part Number | LTC3895HFE |
| Date Code | 2151 |
| Quantity Available | 25132 pcs |
| Manufacturer | Linear Technology/Analog Devices |
| Lead Time | Ship within 24 hours |
| QTY | 1000 |
| Datasheet | LTC3895.pdf |
| Minimum Quantity | More than 50pcs |
| Distributor | SingSun |
| RoHS Status | Lead free / RoHS Compliant |
| Ship From | Hong Kong |
| Shipment Way | EMS/SF/DHL/TNT/UPS/FedEx |
| Country of Assembly | TAIWAN |
| Country of Diffusion | KOREA |
| Lot Number | SF18201.89 |
| MSL | 3 |
| Control Features | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start |
| Base Product Number | LTC3895 |
| Packaging | Tube |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 4 V ~ 140 V |
| Frequency - Switching | 50kHz ~ 900kHz |
| Duty Cycle (Max) | 1 |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Serial Interfaces | - |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Package / Case | 38-TFSOP (0.173", 4.40mm Width), 31 Leads, Exposed Pad |
| Supplier Device Package | 38-TSSOP-EP |
The LTC3895HFE is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage that can operate from input voltages up to 140V. A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz.
The gate drive voltage can be programmed from 5V to 10V to allow the use of logic or standard-level FETs to maximize efficiency. An integrated switch in the top gate driver eliminates the need for an external bootstrap diode. An internal charge pump allows for 100% duty cycle operation.
The low 40μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3895 features a precision 0.8V reference and power good output indicator. The output voltage can be programmed between 0.8V to 60V using external resistors or pin-programmed for a fixed 5V or 3.3V.
