LTC7825

Name: LTC7825
Brand: Analog Devices
Price: 4.11 USD
Availability: InStock

RECOMMENDED FOR NEW DESIGNS

Fully Integrated 24V/12A Switched Capacitor DC/DC Converter with Overvoltage and Overcurrent Protections

Data Sheet (Rev. A) Product Selection Table

Part Models: 1
1ku List Price: Starting From $4.11

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Overview

Wide V_HIGH/V_LOW Voltage from 0V/0V to 24V/12V
Wide V_CC Supply Range from 4.5V to 38V
Very High Efficiency: 97% at 10A Load
Input Overvoltage Protection with External Overvoltage Protection MOSFET
Input and Output Short-Circuit Protection
Soft Start-Up into Steady-State Operation

EXTV_CC Capable of 5V to 14V Input for High Efficiency
Inrush Current Limit and Protection
Integrated Bootstrap Diodes
Programmable Operating Frequency from 100kHz to 1.4MHz
Available in a 4mm × 5mm LGA (LQFN) Package

Part Models: 1
1ku List Price: Starting From $4.11

Documentation

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
LTC7825AV#PBF	28-Lead LQFN (4mm × 5mm × 0.95mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 16, 2024 - 24_0061 LTC7825 - Die Thickness Change
		PCN24_0061_Form Material_Report Other
LTC7825AV#PBF	PRODUCTION	PCN24_0061_Form Material_Report Other

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC7825

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

LTC7825 | High Efficiency 2:1 Monolithic Switched Capacitor Divider

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Product Details

Demonstration circuit DC2993A-B is a dual-phase, high efficiency, high density, open loop charge pump (inductorless) DC/DC converter. This demo board is a voltage divider whose input voltage range is 4.5V to 24V. The output voltage is a fixed ratio of half the input voltage (V_IN/2) and can supply 24A of load current. The DC2993A-B provides a highly efficient solution of 96.5% at full load, running at 380kHz.

This demo board features two LTC7825, a fully integrated 24V/12A switched capacitor DC/DC converter with overvoltage and overcurrent protections in a 4mm × 5mm QFN package. Refer to the LTC7825 data sheet for more detailed information.

The DC2993A-B requires no load current start-up. Load current can be applied after V_OUT is established. Refer to the “Voltage Divider Pre-Balance Before Switching” section in the LTC7825 data sheet for more details regarding the start-up of the voltage divider. This board offers an input disconnect MOSFET controlled by LTC7825 OVG pin to provide overvoltage protection to the power stage when V_IN is higher than 24V. The board also features some protection functions, such as overcurrent and thermal shutdown, making it a reliable solution.

NOTE: For the single-phase operation feature, refer to the DC2993A-A demo manual.

Resources

DC2993A-B - Design Files
10/26/2023

DC2993A-B - Schematic
10/26/2023

DC2993A-B - Demo Manual (Rev.0)
10/26/2023

LTC7825 | High Efficiency 2:1 Monolithic Switched Capacitor Divider

Buy Now View Details

Product Details

Demonstration circuit DC2993A-A is a high efficiency, high density, open loop charge pump (inductorless) DC/DC converter. This demo board is a voltage divider whose input voltage range is 4.5V to 24V. The output voltage is a fixed ratio of half the input voltage (V_IN/2) and can supply 12A of load current. The DC2993A-A provides a highly efficient solution of 96.6% at full load, running at 380kHz.

This demo board features the LTC7825, a fully integrated 24V/12A switched capacitor DC/DC converter with overvoltage and overcurrent protections in a 4mm × 5mm QFN package. Refer to the LTC7825 data sheet for more detailed information.

The DC2993A-A requires no load start-up. Load current can be applied after V_OUT is established. Refer to the “Voltage Divider Pre-Balance Before Switching” section in the LTC7825 data sheet for more details regarding the start-up of the voltage divider. The board offers an input disconnect MOSFET controlled by LTC7825 OVG pin to provide overvoltage protection to the power stage when V_IN is higher than 24V. The board also features some protection functions, such as overcurrent and thermal shutdown, making it a reliable solution.

For dual-phase operation, refer to the DC2993A-B demo manual.