LM3017LEX/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
LM3017LEX/NOPB is a high-efficiency low-side PWM switching controller from Texas Instruments using current-mode control for DC-DC boost and flyback converters. It operates from a 5 V to 18 V input with 12 V nominal in a compact 10-pin QFN package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- LM3017LEX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1060(MOQ 160)
- 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 LM3017LEX/NOPB?
- Current-mode PWM control with cycle-by-cycle overcurrent limiting provides inherent peak current protection for low-side switching topologies from 5 V to 18 V input
- High efficiency switching regulator control supports boost, flyback, and SEPIC converter topologies with external MOSFET selection for power level optimization
- 10-pin QFN leadless package with 3 mm × 3 mm footprint enables compact PCB layout for space-constrained industrial and consumer power supply designs
What is LM3017LEX/NOPB used for?
LM3017LEX/NOPB is designed for boost converters generating 12 V or 24 V rails from 5 V USB or battery inputs, LED backlight drivers, and low-power flyback auxiliaries in industrial and consumer electronics. Its current-mode control with external MOSFET allows flexible power scaling from milliwatt sensor node supplies up to multi-watt LED driver circuits operating from 5 V to 18 V sources. The Pb-free 10-pin QFN package supports modern lead-free PCB assembly processes in space-constrained IoT gateway and handheld instrument power stages.
What are the specifications of LM3017LEX/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 20V |
| Output Voltage-Min | 6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 400kHz |
| 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 LM3017LEX/NOPB datasheet?
LM3017LEX/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3017LEX/NOPB?
Compatible alternatives and drop-in replacements for LM3017LEX/NOPB:
Switching Regulator, Current-mode, 1A, 400kHz Switching Freq-Max, BICMOS, PQCC10
Frequently Asked Questions
What input voltage range does LM3017LEX/NOPB support and which battery chemistries is it compatible with?
LM3017LEX/NOPB operates from 5 V to 18 V input with 12 V nominal, supporting 1-cell LiPo batteries (3.7 V to 4.2 V) through a boost pre-stage, 9 V alkaline supplies, and regulated 5 V or 12 V rails from USB or AC adapters. The 18 V maximum handles lead-acid 12 V battery float charge voltages of up to 14.4 V without overvoltage stress.
How does current-mode control on LM3017LEX/NOPB protect the external MOSFET from overcurrent events?
LM3017LEX/NOPB uses cycle-by-cycle current-mode control that senses peak inductor current via a sense resistor and terminates each PWM pulse when the current reaches the programmed threshold. This limits MOSFET drain current to the set peak value within a single switching cycle, preventing saturation and failure without requiring a slower external fuse or hiccup-mode soft recovery circuit.
Which converter topologies can LM3017LEX/NOPB control for a 5 V to 12 V boost application?
LM3017LEX/NOPB supports boost, flyback, and SEPIC converter topologies using a low-side switching gate drive. For a 5 V input to 12 V output boost converter at 500 mA load, a single external N-channel MOSFET and inductor selected for a 300 kHz to 600 kHz switching frequency achieves over 90% efficiency using LM3017LEX/NOPB current-mode control.
What are the PCB footprint dimensions of LM3017LEX/NOPB and how does the QFN package aid thermal management?
LM3017LEX/NOPB uses a 10-pin QFN leadless package with a 3 mm × 3 mm body and exposed thermal pad, providing low junction-to-board thermal resistance for the switching controller IC itself. The leadless QFN footprint reduces parasitic inductance on gate drive traces, improving EMI performance versus SOIC packages in high-frequency switching controller layouts above 300 kHz.
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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.
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| 275+ | $1.1060 | $304.15 |
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