LMQ61460
3-V bis 36-V, 6-A, rauscharmer Synchron-Abwärtswandler für industrielle Anwendungen
LMQ61460
- Functional Safety-Capable
- ZEN 2 switcher
- HotRod™ package minimizes switch node ringing
- Internal bypass capacitors reduce EMI
- Parallel input path minimizes parasitic inductance
- Spread spectrum reduces peak emissions
- Adjustable switch node rise time
- Designed for rugged applications
- Supports 42V transient
- 0.4V dropout with 4A load (typical)
- High efficiency power conversion at all loads
- 7µA no load current at 13.5 VIN, 3.3 VOUT
- 90% PFM efficiency at 1mA, 13.5 VIN, 5 VOUT
- Low MOSFET ON resistance
- RDS_ON_HS = 41mΩ (typical)
- RDS_ON_LS = 21mΩ (typical)
- External bias option for improved efficiency
- Pin compatible with:
- LM61460 (36V, 6 A)
- Use TPSM63606 module for faster time to market
The LMQ61460 is a high-performance, DC-DC synchronous buck converter with integrated bypass capacitors. With integrated high-side and low-side MOSFETs, up to 6A of output current is delivered over a wide input range of 3.0V to 36V; tolerant of 42V, easing input surge protection design. The device implements soft recovery from dropout eliminating overshoot on the output.
LMQ61460 with ZEN 2 switcher technology is specifically designed for minimal EMI. The device incorporates pseudo-random spread spectrum, integrated bypass capacitors, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be synchronized between 200kHz and 2.2MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller design size at high operating frequency.
Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, makes sure of exceptional efficiency across the entire load range.
Technische Dokumentation
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | LMQ61460 3V to 36V, 6A , Synchronous ZEN 2 Step-Down Converter datasheet (Rev. E) | PDF | HTML | 30 Okt 2025 |
| Application note | How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck | PDF | HTML | 16 Aug 2023 | |
| Technical article | How buck regulators with integrated capacitors help lower EMI and save board space | PDF | HTML | 16 Mär 2022 | |
| Technical article | Powering medical imaging applications with DC/DC buck converters | PDF | HTML | 24 Nov 2020 | |
| Functional safety information | LMQ6x4x0-Q1 Functional Safety, FIT Rate, FMD, and Pin FMA (Rev. A) | PDF | HTML | 09 Sep 2020 | |
| Certificate | LMQ61460EVM-400K EU Declaration of Conformity (DoC) | 01 Sep 2020 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
LMQ61460EVM — Evaluierungsmodul für 36-V-, 6A, 5-V-Synchron-Abwärtswandler mit niedrigem EMI-Wert, 400 kHz
SNVR493 — LMQ61460 Design Tool
Unterstützte Produkte und Hardware
Produkte
AC/DC- und DC/DC-Wandler (integrierter FET)
| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| VQFN-HR (RJR) | 14 | Ultra Librarian |
Bestellen & Qualität
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- Qualifikationszusammenfassung
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- Werksstandort
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