LM25117PMHE/NOPB LM25117PMH/NOPB LM25117PMHX/NOPB LM25117PMH Switching Controllers

MORE STOCK

1Features

LM25117-Q1 is Qualified for Automotive
Applications
AEC-Q100 Qualified With the Following Results:
-Device Temperature Grade1:-40°Cto125°℃
Ambient Operating Temperature Range
Emulated Peak Current Mode Control
Wide Operating Range from 4.5 Vto42 V
Robust 3.3 A Peak Gate Drives
Adaptive Dead-time Output Driver Control
Free-run or Synchronizable Clockup to750 kHz
Optional Diode Emulation Mode
Programmable Output from 0.8 V
Precision 1.5% Voltage Reference
Analog Current Monitor
Programmable Current Limit
Hiccup Mode Over Current Protection
Programmable Soft-start and Tracking
Programmable Line Undervoltage Lockout
Programmable Switch-over to Extenal Bias
Supply
. Thermal Shutdown

2 Applications

Automotive Infotainment
Industrial DC-DC Motor Drivers
Automotive USB Power
Telecom Server

3 Description

The LM25117 is a synchronous buck controller
intended for step-down regulator applications from a
high voltage or widely varying input supply.The
control method is based upon current mode control
utilizing an emulated current ramp. Current mode
control provides inherent line feed-forwardcycle-by-
cycle current limiting and ease of loop compensation.
The use of an emulated control ramp reducesnoise
sensitivity of the pulse-width modulation circuit,
allowing reliable control of very small dutycycles
necessary in high input voltage applications.
The operating frequency is programmable from 50
kHz to 750 kHz. The LM25117 drives external high-
side and low-side NMos power switches with
adaptive dead-time control. A user-selectable diode
emulation modeenablesdiscontinuousmode
operation for improved efficiency at light load
conditions. A high voltage bias requlator that allows
external bias supply further improves efficiency.The
LM25117's unique analog telemetry feature provides
average
outputcurrentinformation.
Additional
features include thermal shutdown,
frequency
synchronization,hiccup mode current
t limit and
adjustable line undervoltage lockout.

Founded in 2020, Hong Kong Keep Booming Technology Co., Limited , is one of the largest independent stocking distributors of electronic components and global procurement services, providing comprehensive supply chain solutions to OEMs and contract manufacturers worldwide.

We are specialized in microcontroller, integrated circuits (ICs),Automotive Integrated Circuits, analog device, power management, capacitor, resistor, circuit protection, crystal, oscillator, inductor, connector, memory, processor, sensor,Transistor regulator, Diode etc.,

locating hard-to-find, obsolete, end-of-life (EOL) and highly allocated components with long lead times. When you work with Hong Kong Keep Booming Technology, you’re working with a full-service and worth-trusty supplier. We are focused on supporting customers throughout the complete supply chain lifecycle.

Please contact with any of your request and we will have our professional experienced team to support you.

Our products: 200+ international and domestic famous electronic component brands

such as TI, ADI, NXP, ST, Microchip,INFINEON,ON SEMI, XILINX, SAMSUNG, TDK, MURATA, Renesas, MELEXIS, and so on.

Combining 20+years of industry experience to help customers deliver the required materials quickly and efficiently, our goal is to continue to meet or exceed customer expectations.

Quality is a crucial parameter which differentiates Hong Kong Keep Booming from our competitors. As a result, we are continuously challenged to improve all aspects of our business throughout our supply chain. In addition to working with our external suppliers and customers, our internal team has adapted a culture of Continuous Improvement to ensure our products and processes adhere to all government and industry standards and regulations.

We love receiving feedback from our customers on how we can improve customers’ experience and our service.