LTC3814-5
PRODUCTION60V Current Mode Synchronous Step-Up Controller
- Part Models
- 4
- 1ku List Price
- Starting From $5.31
Overview
- High Output Voltages: Up to 60V
- Large 1Ω Gate Drivers
- No Current Sense Resistor Required
- Dual N-Channel MOSFET Synchronous Drive
- ±0.5% 0.8V Voltage Reference
- Fast Transient Response
- Programmable Soft-Start
- Generates 5.5V Driver Supply
- Power Good Output Voltage Monitor
- Adjustable Off-Time/Frequency: tOFF(MIN) < 100ns
- Adjustable Cycle-by-Cycle Current Limit
- Undervoltage Lockout On Driver Supply
- Output Overvoltage Protection
- Thermally Enhanced 16-Pin TSSOP Package
The LTC3814-5 is a synchronous step-up switching regulator controller that can generate output voltages up to 60V. The LTC3814-5 uses a constant off-time peak current control architecture to deliver very high duty cycles with accurate cycle-by-cycle current limit without requiring a sense resistor.
A precise internal reference provides ±0.5% DC accuracy. A high bandwidth (25MHz) error amplifier provides very fast line and load transient response. Large 1Ω gate drivers allow the LTC3814-5 to drive large power MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN. A shutdown pin allows the LTC3814-5 to be turned off reducing the supply current to <230μA.
Applications
- 24V Fan Supplies
- 48V Telecom and Base Station Power Supplies
- Networking Equipment, Servers
- Automotive and Industrial Control Systems
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC3814EFE-5#PBF | 16-Lead TSSOP w/ EP | ||
| LTC3814EFE-5#TRPBF | 16-Lead TSSOP w/ EP | ||
| LTC3814IFE-5#PBF | 16-Lead TSSOP w/ EP | ||
| LTC3814IFE-5#TRPBF | 16-Lead TSSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 18, 2026 - 26_0072 Epoxy Change for Select TSSOP Products |
||
| LTC3814EFE-5#PBF | PRODUCTION | |
| LTC3814EFE-5#TRPBF | PRODUCTION | |
| LTC3814IFE-5#PBF | PRODUCTION | |
| LTC3814IFE-5#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
||
| LTC3814EFE-5#PBF | PRODUCTION | |
| LTC3814EFE-5#TRPBF | PRODUCTION | |
| LTC3814IFE-5#PBF | PRODUCTION | |
| LTC3814IFE-5#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
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Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC3814-5
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC3814EFE-5 Demo Board | 5V < VIN < 14V, VOUT = 24V at 5A
Resources
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