LTC3880

RECOMMENDED FOR NEW DESIGNS

Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management

Analog Devices LTC3880 Product Info

10 February 2026 6

Features

PMBus/I²C Compliant Serial Interface
Telemetry Read Back includes V_IN, I_IN, V_OUT, I_OUT, Temperature and Faults
Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV and Frequency Synchronization (250kHz to 1MHz)
±0.5% Output Voltage Accuracy Over Temperature
Integrated 16-Bit ADC
Internal EEPROM with ECC and Fault Logging
Integrated Powerful N-Channel MOSFET Gate Drivers

Power Conversion

Wide V_IN Range: 4.5V to 24V
V_OUT Range: 0.5V to 5.4V (4V on V_OUT0)
Analog Current Mode Control Loop
Accurate PolyPhase^® Current Sharing for Up to 6 Phases
Available in a 40-Pin (6mm × 6mm) QFN Package
AEC-Q100 Qualified for Automotive Applications

Part details & applications

The LTC3880/LTC3880-1 are dual, PolyPhase DC/DC synchronous step-down switching regulator controllers with an I²C-based PMBus compliant serial interface. The controllers use a constant frequency, current mode architecture that is supported by LTpowerPlay^™ software development tool with graphical user interface (GUI).

Switching frequency, output voltage, and device address can be programmed using external configuration resistors. Parameters can be set via the digital interface or stored in EEPROM. Voltage, current, internal/external temperature and fault status can be read back through the bus interface. The LTC3880 incorporates a 5V linear regulator while the LTC3880-1 uses an external 5V supply for minimum power loss. See comparison to LTC3887 below.


	V_OUT Start-Up Time	Max V_OUT0/1	Fast ADC Mode for 1 Parameter
LTC3887/LTC3887-1	35ms	5.5V/5.5V	No
LTC3880/LTC3880-1	120ms	Subscribe to Welllinkchips ! Your Name * Email Subscribe Popular Posts ● Analog Devices ADXC1500 Product Info ● Analog Devices ADIS16507 Product Info ● Analog Devices ADIS16501 Product Info ● Analog Devices ADIS16490 Product Info ● Analog Devices ADIS16495 Product Info ● Analog Devices ADIS16375 Product Info ● Analog Devices ADIS16475 Product Info ● Analog Devices ADIS16489 Product Info ● Analog Devices ADA4571 Product Info ● Analog Devices ADIS16545 Product Info Featured Parts More > LTC6803HG-4#3ZZTRPBF Analog Devices Inc. Submit a request Submit a request Our salesman will contact you by email after submitting the message! * Part Number: * Quantity: * E-mail: Target price: Name: Company name: Please fill the item with * SUBMITTED SUCCESSFULLY！ Our Salesman will respond within 24 hours. Please pay attention to your mailbox. Thank you for your advice. IRS2092STRPBF Infineon Technologies * Qty: Add RFQ List RFQ Directly DON'T MISS OUT Shipping For Free Submit the inquiry in this window, you can get a chance to free shipping. 1.Submit your parts requirements and fill in your email address. 2.Our sales staff gets in touch with you and communicate the details of orders. OK,let’s see NO,keep going In order to provide you with the best website experience, we use cookies. For more information about how we use cookies and manage your preferences, please refer to our privacy policy. By using our website, you agree to use cookies. CONTACT US [email protected] Company address WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK FOLLOW US © 2022 WELL LINK CHIPS GROUP CO., LIMITED All Rights Reserved. Privacy Policy \| Terms and Conditions Send Enquiry SEND e-MAIL Office hour from 9am to 6pm , Monday through Friday, UTC/GMT +8