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LM25119PSQ/NOPB
With its ROHS compliance, this DC-DC converter is environmentally friendly and meets industry standards
Brands: Texas Instruments
Mfr.Part #: LM25119PSQ/NOPB
Datasheet: LM25119PSQ/NOPB Datasheet (PDF)
Package/Case: WQFN (RTV)-32
RoHS Status:
Stock Condition: 2902 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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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.
Features
- Emulated Peak Current Mode Control
- Wide Operating Range (4.5 V to 42 V)
- Easily Configurable for Dual Outputs or Interleaved Single Output
- Robust 3.3-A Peak Gate Drive
- Switching Frequency Programmable to 750 kHz
- Optional Diode Emulation Mode
- Programmable Output From 0.8 V
- Precision 1.5% Voltage Reference
- Programmable Current Limit
- Hiccup Mode Overload Protection
- Programmable Soft-Start
- Programmable Line Undervoltage Lockout
- Automatic Switchover to External Bias Supply
- Channel2 Enable Logic Input
- Thermal Shutdown
- Leadless 32-Pin WQFN Package
Application
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Vin (min) (V) | 4.5 | Vin (max) (V) | 42 |
| Vout (min) (V) | 0.8 | Vout (max) (V) | 41.3 |
| Iout (max) (A) | 40 | Iq (typ) (mA) | 6 |
| Switching frequency (min) (kHz) | 50 | Switching frequency (max) (kHz) | 750 |
| Features | Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Synchronous Rectification, UVLO adjustable | Operating temperature range (°C) | -40 to 125 |
| Regulated outputs (#) | 2 | Number of phases | 2 |
| Rating | Catalog | Control mode | current mode |
| Type | Controller |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
We provide high quality products, thoughtful service and after sale guarantee
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Minimum order quantity starts from 1pcs.
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365 days quality guarantee for all products
