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Overview
| Topology | Boost Converter |
| Input voltage | 6-65 V |
| Switching frequency | 75-550 kHz |
| Output 1 | 48 V / 4 A |
Description
The LT C®3897-2 is a synchronous boost DC/DC controller with surge stopper and ideal diode controller. The boost controller drives two N-channel power MOSFET stages out-of-phase to reduce input and output capacitor requirements, allowing the use of smaller inductors than the single-phase equivalent. Synchronous rectification reduces power loss and eases thermal requirements.
Features
- Input Supply Range: 4.5V to 65V (Up to 75V Surge)
- Reverse Input Protection to –40V
- Inrush Current Control, Overcurrent Protection andOutput Disconnect for Boost Converter
- Input Voltage Surge Protection with Adjustable Clamp Voltage
- Onboard Ideal Diode Controller
- Low Quiescent Current: 55μA
- 2-Phase Operation Reduces Required Input and Output Capacitance and Noise
- Output Voltage Up to 60V
- Adjustable Gate Drive Level 5V to 10V (OPTI-DRIVE)for Logic-Level or Standard Threshold FETs
- No External Bootstrap Diodes Required
- 5mm × 9mm QFN-44 Package with High Voltage Pin Spacing
Typical applications
- Military/Avionics
- Telecommunications
- Automotive
- Industrial
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443556350 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 3.5 | 24.2 | 17 | 37 | 3.1 | 38 | WE-PERM 2 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443556350 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples |
|---|