LTC3816
RECOMMENDED FOR NEW DESIGNSSingle-Phase Wide VIN Range DC/DC Controller for Intel IMVP-6/IMVP-6.5 CPUs
- Part Models
- 8
- 1ku List Price
- Starting From $4.92
Overview
- Supports 7-Bit IMVP-6/IMVP-6.5 VID Code and Features
- Wide VIN Range: 4.5V to 36V Operation with Optional Line Feedforward Compensation
- tON(MIN) < 35ns, Capable of Very Low Duty Cycle
- Temperature Compensated Inductor DCR or Sense Resistor Output Current Monitoring
- Differential Remote Output Voltage Sensing with Programmable Active Voltage Positioning
- Phase-Lockable Fixed Frequency: 150kHz to 550kHz
- Programmable UVLO, Preset VOUT at Boot-Up
- Programmable Slow Slew Rate Sleep State Exit
- Internal LDO for Single Supply Operation
- Overvoltage and Overcurrent Protection
- PWRGD and VRTT# Thermal Throttling Flags
- Power Optimization During Sleep and Light Load
- 38-Pin Thermally Enhanced eTSSOP and 5mm × 7mm QFN Packages
The LTC3816 is a single-phase synchronous step-down DC/DC switching regulator controller that drives N-channel power MOSFETs in a constant-frequency voltage mode architecture. The controller’s leading edge modulation topology allows extremely low output voltages and supports a phase-lockable switching frequency up to 550kHz. The output voltage is programmed using a 7-bit VID code.
The LTC3816 features all of the IMVP-6/IMVP-6.5 requirements, including start-up to a preset boot voltage, differential remote output voltage sensing with programmable active voltage positioning, IMON output current reporting, power optimization during sleep state, and fast or slow slew rate sleep state exit.
Fault protection features include input undervoltage lockout, cycle-by-cycle current limit, output overvoltage protection, and PWRGD and overtemperature flags.
Applications
- Embedded Computing
- Mobile Computers, Internet Devices
- Navigation Displays
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 |
|---|---|---|---|
| LTC3816EFE#PBF | 38-Lead TSSOP w/ EP | ||
| LTC3816EFE#TRPBF | 38-Lead TSSOP w/ EP | ||
| LTC3816EUHF#PBF | 38-Lead QFN (5mm x 7mm w/ EP) | ||
| LTC3816EUHF#TRPBF | 38-Lead QFN (5mm x 7mm w/ EP) | ||
| LTC3816IFE#PBF | 38-Lead TSSOP w/ EP | ||
| LTC3816IFE#TRPBF | 38-Lead TSSOP w/ EP | ||
| LTC3816IUHF#PBF | 38-Lead QFN (5mm x 7mm w/ EP) | ||
| LTC3816IUHF#TRPBF | 38-Lead QFN (5mm x 7mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 18, 2026 - 26_0072 Epoxy Change for Select TSSOP Products |
||
| LTC3816EFE#PBF | PRODUCTION | |
| LTC3816EFE#TRPBF | PRODUCTION | |
| LTC3816IFE#PBF | PRODUCTION | |
| LTC3816IFE#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
||
| LTC3816EFE#PBF | PRODUCTION | |
| LTC3816EFE#TRPBF | PRODUCTION | |
| LTC3816IFE#PBF | PRODUCTION | |
| LTC3816IFE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
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|---|---|---|
| Circuit Monitors 1 | ||
| LTC2960 | RECOMMENDED FOR NEW DESIGNS | 36V Nano-Current Two-Input Voltage Monitor |
| Hot Swap Controllers 1 | ||
| LT4363 | RECOMMENDED FOR NEW DESIGNS | High Voltage Surge Stopper with Current Limit |
| Power System Management (PSM) & Sequencers 1 | ||
| LTC2974 | RECOMMENDED FOR NEW DESIGNS | 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement |
| Switching Regulators & Controllers 1 | ||
| LTC3880 | RECOMMENDED FOR NEW DESIGNS | Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC3816
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
LTC3816EUHF Demo Board u 4.5V VIN 28V, VOUT = Up to 1.5V @ 25A
Resources
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