LM5119PSQE/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
Texas Instruments LM5119PSQE/NOPB is a current-mode PWM step-down switching regulator delivering 3.3 A output with 5.5 V to 65 V input range and adjustable 0.8 V to 64 V output, housed in a 32-pin WQFN package. Available worldwide with RoHS compliance.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- LM5119PSQE/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.8400(MOQ 250)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM5119PSQE/NOPB?
- Wide 5.5 V to 65 V input voltage range supports industrial and automotive bus applications
- Current-mode PWM control for fast transient response and cycle-by-cycle current limiting
- Adjustable output voltage from 0.8 V to 64 V covering a broad range of system rails
- 3.3 A continuous output current in compact 32-pin WQFN package for high power density
- Lead-free and RoHS-compliant e3 JEDEC moisture sensitivity rating
What is LM5119PSQE/NOPB used for?
The LM5119PSQE/NOPB is designed for industrial power supplies, telecom infrastructure, and motor drive auxiliary rails that require stepping down high bus voltages (up to 65 V) to regulated lower rails. Its current-mode control with PWM enables tight regulation under rapidly changing load conditions, making it suitable for point-of-load converters in factory automation equipment and programmable logic controllers. The compact WQFN-32 footprint allows integration into space-constrained power stages alongside FPGAs and DSPs.
What are the specifications of LM5119PSQE/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 65V |
| Input Voltage-Min | 5.5V |
| Input Voltage-Nom | 36V |
| JESD-30 Code | S-XQCC-N32 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 2 |
| Output Current-Max | 15A |
| Output Voltage-Max | 64V |
| Output Voltage-Min | 0.8V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | PHASE-SHIFT |
| Switching Frequency-Max | 750kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM5119PSQE/NOPB datasheet?
LM5119PSQE/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM5119PSQE/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LM5119PSQE/NOPB support, and which bus standards does that cover?
The LM5119PSQE/NOPB accepts input voltages from 5.5 V to 65 V, covering 12 V, 24 V, 36 V, and 48 V industrial bus standards. This makes it directly compatible with standard telecom and industrial DC rails without additional pre-regulation, simplifying system architecture and reducing component count.
How much output current can LM5119PSQE/NOPB deliver continuously, and what efficiency is achievable?
The LM5119PSQE/NOPB provides up to 3.3 A continuous output current. With current-mode PWM control, efficiency typically exceeds 90% at nominal load when switching at frequencies in the range of 100 kHz to 500 kHz, depending on input-output voltage ratio and external component selection including inductor and output capacitors.
For a 48 V to 3.3 V conversion in a telecom shelf, when should LM5119PSQE/NOPB be considered over a lower-voltage controller?
The LM5119PSQE/NOPB is ideal for 48 V bus applications because it tolerates up to 65 V input without requiring a pre-regulator. Competing controllers rated to only 20 V or 40 V would need a voltage divider or first-stage conversion, adding cost and reducing efficiency, whereas this part handles the full 48 V rail directly in a single stage.
What package does LM5119PSQE/NOPB use and how does the thermal pad affect PCB layout?
The LM5119PSQE/NOPB uses a 32-pin WQFN (Quad Flat No-Lead) package with an exposed thermal pad on the bottom. The thermal pad must be soldered to a PCB copper pour connected through multiple thermal vias to inner ground planes, enabling the part to dissipate heat at full 3.3 A load without exceeding the 150°C junction temperature limit.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $6.1800 | $1545.00 |
| 500+ | $5.9800 | $2990.00 |
| 1000+ | $5.8400 | $5840.00 |
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