Power Management
Power Control
PowerPath Controllers & Ideal Diodes
Space & Harsh Environment
Extended Temperature Plastic (H & MP)
Extended Temperature (H & MP) Power Management
LTC4359 - Ideal Diode Controller with Reverse Input Protection
Features
- Reduces Power Dissipation by Replacing a Power Schottky Diode
- Wide Operating Voltage Range: 4V to 80V
- Reverse Input Protection to – 40V
- Low 9μA Shutdown current
- Low 150μA Operating Current
- Smooth Switchover without Oscillation
- Available in 6-Lead (2mm × 3mm) DFN and 8-Lead MSOP Packages
Typical Application
Description
The LTC®4359 is a positive high voltage ideal diode controller that drives an external N-channel MOSFET to replace a Schottky diode. It controls the forward voltage drop across the MOSFET to ensure smooth current delivery without oscillation even at light loads. If a power source fails or is shorted, a fast turn-off minimizes reverse current transients. A shutdown mode is available to reduce the quiescent current to 9μA.
When used in high current diode applications, the LTC4359 reduces power consumption, heat dissipation, voltage loss and PC board area. With its wide operating voltage range, the ability to withstand reverse input voltage, and high temperature rating, the LTC4359 satisfies the demanding requirements of both automotive and telecom applications. The LTC4359 also easily ORs power sources in systems with redundant supplies.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
DFN-6, MS-8
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LTC4359CDCB#PBF | DFN | 6 | C | $3.00 | View | |
| LTC4359CDCB#TRMPBF | DFN | 6 | C | $3.00 | $2.15 | View |
| LTC4359CDCB#TRPBF | DFN | 6 | C | $3.00 | $2.10 | View |
| LTC4359CMS8#PBF | MSOP | 8 | C | $3.00 | $2.10 | View |
| LTC4359CMS8#TRPBF | MSOP | 8 | C | $2.16 | View | |
| LTC4359HDCB#PBF | DFN | 6 | H | $3.97 | View | |
| LTC4359HDCB#TRMPBF | DFN | 6 | H | $3.97 | $2.83 | View |
| LTC4359HDCB#TRPBF | DFN | 6 | H | $3.97 | $2.78 | View |
| LTC4359HMS8#PBF | MSOP | 8 | H | $3.97 | $2.78 | View |
| LTC4359HMS8#TRPBF | MSOP | 8 | H | $2.84 | View | |
| LTC4359IDCB#PBF | DFN | 6 | I | $3.45 | View | |
| LTC4359IDCB#TRMPBF | DFN | 6 | I | $3.45 | $2.47 | View |
| LTC4359IDCB#TRPBF | DFN | 6 | I | $3.45 | $2.42 | View |
| LTC4359IMS8#PBF | MSOP | 8 | I | $3.45 | $2.42 | View |
| LTC4359IMS8#TRPBF | MSOP | 8 | I | $2.48 | View | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1502A | LTC4359DCB Demoboard: 12V, 20A Ideal Diode with Reverse Input Protection | $75.00 | |
| DC1676A | LTC4359DCB Demoboard: 28V, 20A Ideal Diode and Switch with Reverse Input Protection | $75.00 | |
| Buy Now | |||
Applications
- Automotive Battery Protection
- Redundant Power Supplies
- Telecom Infrastructure
- Computer Systems/Servers
- Solar Systems
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LTC4359
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.