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Overview
| Topology | Boost Converter |
| Input voltage | 6-55 V |
| Switching frequency | 75-550 kHz |
| Output 1 | 24 V / 10 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCI SMT Flat Wire High Current Inductor, 3.5 µH, 24.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance3.5 µH | Performance Rated Current24.2 A | Saturation Current @ 10%17 A | Saturation Current @ 30%37 A | DC Resistance3.1 mΩ | Self Resonant Frequency38 MHz | MaterialWE-PERM 2 |