Texas Instruments LM706x0/LM706x0-Q1 Buck Converters
Texas Instruments LM706x0/LM706x0-Q1 Buck Converters feature a 4.5V to 65V input voltage range and up to 10A of output current at fixed output voltages of 3.3V, 5V, 12V, or an adjustable output. The LM706x0/LM706x0-Q1 low-IQ, wide-VIN synchronous buck converters utilize a peak current-mode control architecture for easy loop compensation, fast transient response, and superior load and line regulation. A pair of LM706A0-Q1 converters can be set up in an interleaved mode (paralleled outputs) with accurate current sharing for applications needing up to 20A of output current. The LM706A0-Q1 supplies a unique Dual Random Spread Spectrum (DRSS) function that incorporates low-frequency triangular and high-frequency cycle-by-cycle random modulations for enhanced EMI performance across a wide range of frequency bands.
The TI LM706x0-Q1 converter is engineered in a 6mm × 6mm thermally optimized, 29-pin QFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board-level reliability (BLR). The LM706x0-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- AEC-Q100 qualified for automotive applications with device temperature grade 1 of -40°C to +125°C ambient operating temperature
- Functional safety-capable documentation available to aid functional safety system design
- Synchronous DC/DC converter with a versatile buck controller and robust power MOSFETs
- 4.5V to 65V wide input voltage range
- 2.3µA shutdown mode current
- 10.4µA no-load IQ regulating 24V to 5V
- 1% accurate, fixed 3.3V, 5V, 12V, or adjustable outputs from 0.8V to 36V
- Dual-phase operation enabling output currents up to 16A
- Designed for low EMI requirements
- Facilitates CISPR 25 Class 5 compliance
- Pin-selectable ±8% dual-random spread spectrum reduces peak emissions
- 200kHz to 2.2MHz switching frequency
- Pin-configurable AUTO or FPWM operation
- Inherent protection features for robust design
- Internal hiccup-mode overcurrent protection
- Enable, power good, and thermal shutdown
- Internal or external loop compensation
- 6mm x 6mm thermally optimized, RoHS compliant, QFN-29 package with Pb-free plating
- Create a custom design using the LM706A0-Q1 with the WEBENCH® Power Designer
Applications
- Automotive electronic systems
- Advanced Driver Assist Systems (ADAS)
- Infotainment and cluster
Typical Application Circuit
Associated Evaluation Module
Texas Instruments LM706A0QEVM Converter Evaluation Module (EVM)
Offers an outsized voltage rating and operating margin to withstand supply rail voltage transients.
Yayınlandı: 2024-10-30
| Güncellenmiş: 2025-05-09