LTM4719

RECOMMENDED FOR NEW DESIGNS

42V Dual Input, Low Noise 150mA Step-Down μModule Regulator with I²C Battery Health Monitor

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $11.57

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Part Details

Seamless and Automatic Transition between Two Input Power Sources
Integrated Battery Health Monitor
Wide Voltage Range for Dual Inputs: 2.4V to 42V
Battery Health Monitor Input Voltage: 1.8V to 5.5V
Adjustable Output Range: 1V to 4.2V
Up to 150mA Continuous Output Current
Integrated Low-Dropout Linear Regulator: 195mV at 150mA Load for Low Output Noise

200kHz to 2.2MHz Switching Frequency
Synchronization to an External Clock
Current Mode Control With 60ns Minimum On-time
Burst Mode® Operation, I_Q = 18.5μA
Programmable Input UVLO Thresholds and Discharge Alarm with Interrupt Output
Input Valid, Priority Channel, and PG Indicators
Available in a Compact 64-Pin BGA, 7mm × 7mm × 1.85mm Package

Part Models: 2
1ku List Price: Starting From $11.57

Documentation

Data Sheet 1

LTM4719: 42V Dual Input, Low Noise 150mA Step-Down μModule Regulator with I²C Battery Health Monitor Data Sheet (Rev.0) 02/14/2025

User Guide 1

EVAL-LTM4719-AZ User Guide: LTM4719 | 42V Dual Input, Low Noise 150mA Step-Down μModule Regulator with I²C Battery Health Monitor (Rev.0) 02/14/2025

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
LTM4719EY#PBF	CHIP SCALE BGA	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4719IY#PBF	CHIP SCALE BGA	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Evaluation Kits

LTM4719 | 42V Dual Input, Low Noise 150mA Step-Down μModule Regulator with I2C Battery Health Monitor

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Features and Benefits

Compatible with LTpowerPlay
- Easy to use GUI for the Coulomb Counter
- Access Coulomb Counter Register Data
Optional Supercapacitor Balancer

Product Details

The EVAL-LTM4719-AZ evaluation board features the LTM^®4719, a 42V dual input, 150mA synchronous buck power μModule^® (micromodule) regulator with an integrated battery health monitor and a low-dropout linear regulator. The EVAL-LTM4719-AZ has a wide operating input range of 2.4V to 42V and supports seamless transition between the two separate input power sources. The output has a range of 1V to 4.2V and can source up to 150mA of continuous output current.

The EVAL-LTM4719-AZ also features an EXTV_CC jumper (JP3) to V_BUS for improved efficiency in some applications. The system can be monitored through VALID1, VALID2, PRIORITY, and PG indicators. There are accurate V_SET1 and V_SET2 comparators to program independent undervoltage lockout (UVLO) thresholds. Fault protection features include input UVLO, power good, current limit, and overtemperature protection. The built-in precision coulomb counter supports input voltages from 1.8V to 5.5V and a peak current of up to 100mA. The EVAL-LTM4719-AZ utilizes jumpers to easily program the peak current limit of the coulomb counter from 5mA to 100mA by setting IPK0 (JP4), IPK1 (JP5), and IPK2 (JP6).

The EVAL-LTM4719-AZ can be connected directly to a PC at P1 using the DC1613A, Analog Devices I²C/SMBus/ PMBus dongle. The LTpowerPlay^® allows the user to run a graphical user interface (GUI) and configure a battery state of health (SoH) monitor.

Resources

EVAL-LTM4719-AZ User Guide: LTM4719 | 42V Dual Input, Low Noise 150mA Step-Down μModule Regulator with I²C Battery Health Monitor (Rev.0)
1.39 M

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