LM25119PSQ/NOPB Buck Controller 4.5-42V Input 100V/10A MOSFET Drive 200kHz-1MHz Freq Sync Rect Adjustable UVLO Thermal Protection 16-WQFN, -40anddeg;C to +125anddeg;C
andnbsp;
Features
andbull; Emulated Peak Current Mode Control
andbull; WideOperating Range (4.5 V to 42 V)
andbull; Easily Configurable for Dual Outputs or Interleaved Single Output
andbull; Robust 3.3-A Peak Gate Drive
andbull; Switching Frequency Programmable to 750 kHz
andbull; Optional Diode Emulation Mode
andbull; Programmable Output From 0.8 V
andbull; Precision 1.5% Voltage Reference
andbull; Programmable Current Limit
andbull; Hiccup Mode Overload Protection
andbull; Programmable Soft-Start
andbull; Programmable Line Undervoltage Lockout
andbull; Automatic Switchover to External Bias Supply
andbull; Channel2 Enable Logic Input
andbull; Thermal Shutdown
andbull; Leadless 32-Pin WQFN Package
andnbsp;
Applications
andbull; Industrial DC-DC Motor Drivers
andbull; Telecom Servers and Routers
andnbsp;
Description
The LM25119 device is a dual 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 using an emulated current ramp. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting and ease of-loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The switching frequency is programmable from 50 kHz to 750 kHz. The LM25119 device drives external high-side and low side N-channel MOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A high voltage bias regulator with automatic switch-over to external bias further improves efficiency. Additional features include thermal shutdown, frequency synchronization, cycle-by-cycle and hiccup mode current limit and adjustable line undervoltage lockout. The device is available in a power enhanced leadless 32-pin WQFN package featuring an exposed die attach pad to aid thermal dissipation.
andnbsp;
INFORMATION
| Category | | andnbsp; |
| Manufacturer | | |
| Series | | |
| Packaging | Tape andamp; Reel (TR) Cut Tape (CT) Digi-Reelandreg; | andnbsp; andnbsp; andnbsp; |
| Part Status | | |
| Output Type | | |
| Function | | |
| Output Configuration | | |
| Topology | | |
| Number of Outputs | | |
| Output Phases | | |
| Voltage - Supply (Vcc/Vdd) | | |
| Frequency - Switching | | |
| Duty Cycle (Max) | | |
| Synchronous Rectifier | | |
| Clock Sync | | |
| Serial Interfaces | | |
| Control Features | Enable, Frequency Control, Ramp, Reset, Soft Start | |
| Operating Temperature | -40anddeg;C ~ 125anddeg;C (TJ) | |
| Mounting Type | | |
| Package / Case | | |
| Supplier Device Package | | |
| Base Product Number | |
andnbsp;
Drawing
andnbsp;
Our advantage :
- High quality products --- our offers are 100% new and original, ROHS
- Competitive price --- good Purchase channels with good price.
- Professional service --- strict quality testing before the shipment, and perfect after-sales service after the purchase.
- Adequate inventory --- With the support of our strong Purchasing team,
- Fast delivery --- we will ship the goods within 1-3 working days after the payment confirmed.
andnbsp;
be sure to meet your need for all kinds of components. ^_^
Product List
Supply a Series of Electronic Components, full range of semiconductors, active andamp; passive Components.We can help you to get all for bom of the PCB,IN a word, you can get one-stop solution here,
The offers including:
Integrated Circuit, Memory ICs, Diode, Transistor , Capacitor, Resistor, Varistor, Fuse, Trimmer andamp; Potentiometer, Transformer, Battery, Cable, Relay, Switch, Connector, Terminal Block, Crystal andamp; Oscillator, Inductor, Sensor, Transformer, IGBT Driver, LED,LCD, Convertor, PCB (Printed Circuit Board),PCBA (PCB Assembly)
Strong in Brand:
Microchip, MAX, AD, TI, ATMEL, ST, ON, NS, Intersil, Winbond, Vishay, ISSI, Infineon, NEC, FAIRCHILD, OMRON,YAGEO, TDK, etc
Product Tags:
|
|
LM25119PSQ/NOPB Buck Controller 4.5-42V Input 100V/10A MOSFET Drive 200kHz-1MHz Freq Sync Rect Adjustable UVLO Thermal Protection 16-WQFN, -40°C to Images
|
