Datasheet for LTC3882-1:
- Manufacturer Part Number : LTC3882-1
- Manufacturer : AD
- Description : Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management
- Series : LTC3882-1
- Reference Price : USD 4.28
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Digitally Programmable Regulators
- Current Suggest : Recommended for New Designs
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC3882-1
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- PMBus/I2C Compliant Serial Interface
- Monitor Voltage, Current, Temperature and Faults
- Program Voltage, Soft-Start/Stop, Sequencing, Margining, AVP and UV/OV/OC Limits
- 3V ≤ VINSNS ≤ 38V, 0.5V ≤ VOUT ≤ 5.25V
- ±0.5% Output Voltage Error
- Programmable PWM Frequency or External Clock Synchronization from 250kHz to 1.25MHz
- Accurate PolyPhase® Current Sharing
- Internal EEPROM with Fault Logging and ECC
- IC Supply Range: 3V to 13.2V
- Resistor or Inductor DCR Current Sensing
- Power Good Output Voltage Monitor
- Optional Resistor Programming for Key Parameters
- 40-Pin (6mm × 6mm) QFN Package
- AEC-Q100 Qualified for Automotive Applications
The LTC3882-1 is a dual, PolyPhase DC/DC synchronous step-down switching regulator controller with PMBus compliant serial interface. It uses a constant frequency, leading-edge modulation, voltage mode architecture for excellent transient response and output regulation. Each PWM channel can produce output voltages from 0.5V to 5.25V using a wide range of 3.3V compatible power stages, including power blocks, DrMOS or discrete FET drivers. Up to four LTC3882-1 devices can operate in parallel for 2-, 3-, 4-, 6- or 8-phase operation.
System configuration and monitoring is supported by the LTpowerPlay™ software tool. The LTC3882-1 serial interface can read back input voltage, output voltage and current, temperature and fault status. Most operating parameters can be set via the digital interface or stored in internal EEPROM for use at power up. Switching frequency and phase, output voltage and device address can also be set using external configuration resistors.
| PWM Enable Output | TG/BG Control | HW Write Protect | Dedicated PGOOD | Differential VOUT Sense | |
| LTC3882 | Yes | Yes | Yes | No | VOUT0 Only |
| LTC3882-1 | No | No | No | Yes | VOUT0 & VOUT1 |
Applications
- High Current Distributed Power Systems
- Servers, Network and Storage Equipment
- Intelligent Energy Efficient Power Regulation
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
