LM25119PSQE/NOPB Semiconductors - ICs by Texas Instruments

IC BUCK CNTRL DUAL SYNC 32LLP

Status: Unknown
Series: -
RoHS: Unknown
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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 easeof-loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulsewidth 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 drives external high-side and low-side NMOS 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.

Prices starting from US$2.75


Distributor Starting From Stock
Logo for Texas Instruments Texas Instruments US$2.75
70,529
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Logo for Newark Electronics Newark Electronics US$6.67
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Logo for element14 element14 US$6.59
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Specifications

Supply Voltage Min 4.5V
Supply Voltage Max 42V
No. of Outputs 2 Output, 2Outputs
Duty Cycle (%) 98%
Controller IC Case Style LLP
No. of Pins 32Pins
Switching Frequency 750kHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
Operating Temperature Range -40°C to +125°C
Output Current 20A
Primary Input Voltage 42V

Alternative Descriptions

4.5-42V Wide Vin, Current Mode Dual Synchronous Buck Controller | Texas Instruments
Ic, Buck, Cntrl, Dual, Sync, 32Llp | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM25119PSQE/NOPB?

Additional datasheets, footprints and schematics for LM25119PSQE/NOPB are listed on our Part Details page. You can also find images and similar parts to LM25119PSQE/NOPB on this page.

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What category does LM25119PSQE/NOPB fall under?

The LM25119PSQE/NOPB is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

Can I view similar or alternative parts?

You can view similar parts to LM25119PSQE/NOPB when available in the Power Management range under the specifications section at the bottom of the details page.

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Is the LM25119PSQE/NOPB RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for LM25119PSQE/NOPB have stock available?

Authorised distributors including Texas Instruments, Farnell Contract, Newark Electronics and element14 have stock available or on a lead time for LM25119PSQE/NOPB.

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