Texas Instruments LMR66430R5RXBR
Manufacturer No:
LMR66430R5RXBR
Manufacturer:
Texas Instruments
Package:
Description:
Buck 3A 200kHz~2.2MHz Adjustable 1V~18V 1 VQFN-FCRLF-14(2.6x2.6) Voltage Regulators - DC DC Switching Regulators ROHS
Quantity:
In Stock :6166
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Shipped from：HK Warehouse
Expected Shipping：Thu, May 28 - Fri, May 29, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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DELIVERY TIME1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.
LMR66430R5RXBR Information
Texas Instruments LMR66430R5RXBR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LMR66430R5RXBR.
- Type
- Parameter
- Rating
- Catalog
- Topology
- Buck
- Iout (max) (A)
- 3
- Vin (max) (V)
- 36
- Vin (min) (V)
- 3
- Vout (max) (V)
- 35
- Vout (min) (V)
- 1
- Features
- Enable, Fixed Output, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Low Noise, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, UVLO adjustable, Wettable flanks package
- EMI features
- Low parasitic Hotrod packaging, Spread Spectrum
- Control mode
- current mode
- Type
- Parameter
- Switching frequency (min) (kHz)
- 200
- Switching frequency (max) (kHz)
- 2200
- TI functional safety category
- Functional Safety-Capable
- Operating temperature range (°C)
- -40 to 150
- Iq (typ) (µA)
- 1.5
- Duty cycle (max) (%)
- 98
- Type
- Converter
- Package
- VQFN-FCRLF (RXB)
- Pins
- 14
- Size
- 6.76 mm² 2.6 x 2.6
Download datasheets and manufacturer documentation for Texas Instruments LMR66430R5RXBR.
Functional safety information:
Application brief:
Data sheet:
The LMR664x0 is a small 36-V, 3-A (available in 2-A and 1-A variants) synchronous step-down DC/DC converter in an enhanced HotRod QFN package. This easy-to-use converter supports a wide input voltage range of 2.7 V to 36 V (after start-up or after operating) with transients up to 42 V.
The LMR664x0 is specifically designed to meet low standby power requirements for always-on, industrial applications. Auto mode enables frequency foldback when operating at light loads, allowing an unloaded typical current consumption of 1.5 µA at 13.5 VIN and high light load efficiency. A seamless transition between PWM and PFM modes along with very low MOSFET ON resistances makes sure there is exceptional efficiency across the entire load range. The control architecture (peak current mode) and feature set are optimized for an ultra-small design size with minimal output capacitance. The device minimizes input filter size by using dual-random spread spectrum (DRSS), a low-EMI enhanced HotRod QFN package, and an optimized pin-out. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency to avoid noise sensitive frequency bands. There are NC pins between critical high voltage pins, reducing potential failures (optimal pin FMEA). The rich feature set of the LMR664x0 is designed to simplify implementation for a wide range of industrial end equipment.
- Functional Safety-Capable
- Designed for industrial applications:
- Junction temperature range –40°C to +150°C
- NC pin between critical pins for better reliability
- Best in-class pin FMEA
- Input transient protection up to 42 V
- Wide input voltage range after start-up: 2.7 V (falling threshold) to 36 V
- Adjustable output up to 95% of VIN, 3.3-V, and 5-V fixed VOUT options available
- Optimized for low EMI requirements:
- Dual random spread spectrum reduces peak emissions
- Enhanced HotRod™ QFN package minimizes switch node ringing
- Greater than 85% efficiency at 1 mA
- Miniature design size and low component cost:
- 2.6-mm × 2.6-mm enhanced HotRod QFN package with wettable flanks
- Internal control loop compensation
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12.28 M
Listed Part Number
3,000+
Leading Manufacturers
4.9 M
In-stock SKU
15,000+
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