LT7826

RECOMMENDED FOR NEW DESIGNS

Fully Integrated 17V/8A Switched Capacitor 2:1 Converter Configurable as a Voltage Divider, Doubler, or Inverter

Data Sheet (Rev. 0)

Part Models: 2
1ku List Price: Starting From $2.39

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Part Details

Wide VHIGH/VLOW Voltage Range from 0V/0V to 17V/8.5V with a Startup Voltage of 3.45V;
Maximum Output Current 8A as a Voltage Divider
Low Quiescent Current of 4μA at Shutdown
Over 97% Peak Efficiency
Standalone Voltage Divider (2:1), Doubler (1:2), Inverter (1:-1) Conversion

Soft Startup into Steady-State Operation
Inrush Current Limit and Overcurrent Protection
Parallel Operation for Higher Output Power&
Integrated Bootstrap Diodes
Available in a 3mm x 3mm LFCSP Package

Part Models: 2
1ku List Price: Starting From $2.39

Documentation

Data Sheet 1

LT7826: Fully Integrated 17V/8A Switched Capacitor 2:1 Converter Configurable as a Voltage Divider, Doubler, or Inverter (Rev.0) 08/01/2025

User Guide 1

EVAL-LT7826-AZ: High-Efficiency Fully Integrated 17V/8A Switched Capacitor Converter (Rev.0) 08/01/2025

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
LT7826ACPZ	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT7826ACPZ-RL	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Evaluation Kits

High-Efficiency Fully Integrated 17V/8A Switched Capacitor Converter

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Features and Benefits

Maximum VHIGH Voltage 17V.
Standalone Voltage Divider (2:1) or Voltage Doubler (1:2)
Maximum Output Current 8A as a Voltage Divider
Over 97% Peak Efficiency
Soft Startup into Steady-State Operation
Inrush Current Limit and Overcurrent Protection
Integrated Bootstrap Diodes

Product Details

Evaluation circuit EVAL-LT7826-AZ is an open-loop switched capacitor (inductor-less) DC/DC converter. It can operate as a 2:1 voltage divider when input voltage is connected to VHIGH, or as a 1:2 voltage doubler when input voltage is connected to VLOW. The EVAL-LT7826-AZ operates from a VHIGH range of 3.4V to 17V and a VLOW range of 1.7V to 8.5V. LT7826’s switching frequency is fixed to 500kHz. As a voltage divider, it can supply up to 8A of load current.

EVAL-LT7826-AZ features LT7826: a fully integrated monolithic switched capacitor 2:1 converter configurable as a voltage divider, doubler, or inverter. The LT7826 features integrated bootstrap diodes and a low quiescent current of 4μA at shutdown. It provides a compact, cost-effective solution for battery system applications, portable consumer electronics, and industrial applications.

EVAL-LT7826-AZ allows users to program the input voltage enable and undervoltage lockout (UVLO) thresholds via RUN pin resistor dividers. LT7826 also offers protection functions. At overcurrent conditions or IC overtemperature conditions, the FAULT pin is pulled low, and switching is stopped.

The EVAL-LT7826-AZ requires no load or light load start-up. After the input voltage is applied to the board, LT7826 enters pre-balance mode if the RUN pin and MODE pin are above their thresholds, and INTVCC is above the UVLO threshold. During pre-balance mode, capacitors are charged with reduced current and switching frequency. Full load current can be applied after pre-balance is finished and an output voltage is established.

The EVAL-LT7826-AZ can be paralleled with other EVAL-LT7826-AZ circuit boards. Switching synchronization is available through the MODE turret for frequency tuning and interleaving operation. Refer to the Typical Applications section of the LT7826 datasheet for an example of paralleling two LT7826 devices for interleaving operation.

The LT7826 is available in a 3mm x 3mm LFCSP package. The LT7826 datasheet gives a complete description of the part's operation and application information. The LT7826 datasheet must be read in conjunction with this user guide to use the evaluation circuit EVAL-LT7826-AZ properly.