LM27402SQ/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
LM27402SQ/NOPB is a high-efficiency synchronous buck controller by Texas Instruments, supporting wide input voltage range and adjustable output. Key specs: 4.5V–42V input range, up to 10A output current, 200kHz–2.2MHz switching frequency. Contact us for current pricing and availability with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 17
- Lifecycle
- ACTIVE
- Datasheet
- LM27402SQ/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1270(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide input voltage range: 4.5V to 42V for versatile power supply designs
- Adjustable switching frequency from 200kHz to 2.2MHz for optimized efficiency
- Integrated gate drivers for N-channel high-side and low-side MOSFETs
- Accurate voltage reference with ±1% feedback threshold for tight regulation
- Programmable soft-start and current limiting for system protection
Applications
The LM27402SQ/NOPB is well suited for industrial power supplies, telecom equipment, and server infrastructure where efficient point-of-load conversion is required. Its wide input range and high switching frequency make it ideal for distributed power architectures, DC-DC converters in automotive systems, and high-density power modules. It is also commonly used in test and measurement equipment and embedded computing platforms demanding reliable, adjustable voltage regulation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-XQCC-N16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 30A |
| Output Voltage-Max | 18.6V |
| Output Voltage-Min | 0.6V |
| Package Body Material | UNSPECIFIED |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1200kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| 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 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM27402SQ/NOPB:
Rochester Electronics LLC SWITCHING CONTROLLER, 1350 kHz SWITCHING FREQ-MAX, QCC16, 4 X 4 MM, 0.80 MM HEIGHT, 0.65 MM PITCH, LLP-16
Frequently Asked Questions
What is the input voltage range of the LM27402SQ/NOPB?
The LM27402SQ/NOPB supports an input voltage range of 4.5V to 42V, making it suitable for a wide variety of industrial, automotive, and telecom power supply applications requiring flexible input sources.
What switching frequency does the LM27402SQ/NOPB support?
The LM27402SQ/NOPB features a programmable switching frequency ranging from 200kHz to 2.2MHz. This allows designers to optimize efficiency, reduce EMI, and minimize external component size based on application requirements.
What are the typical applications for the LM27402SQ/NOPB?
Typical applications include industrial power supplies, server and telecom DC-DC converters, automotive point-of-load regulators, and embedded computing platforms. Its synchronous buck topology provides high efficiency across a broad load range.
What package does the LM27402SQ/NOPB use?
The LM27402SQ/NOPB is available in a small WSON package, which offers excellent thermal performance and a compact PCB footprint, ideal for space-constrained high-density power designs.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.4500 | $2.45 |
| 50+ | $1.4317 | $71.58 |
| 150+ | $1.3707 | $205.61 |
| 228+ | $1.2250 | $279.30 |
| 491+ | $1.1270 | $553.36 |
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