Texas Instruments LM706A0-Q1 User Manual

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EVM User's Guide: LM706A0QEVM
LM706A0-Q1 Buck Converter Evaluation Module
Description
The LM706A0QEVM high-density EVM is designed to
use a regulated or non-regulated high-voltage input
rail ranging from 8V to 65V to produce a tightly
regulated output voltage of 3.3V at load currents
up to 10A. This wide V
IN
offers outsized voltage rating and operating margin to
withstand supply rail voltage transients.
The free-running switching frequency is 400kHz and
is synchronizable to an external clock signal at a
higher or lower frequency. The power-train passive
components selected for this EVM, including buck
inductors and ceramic input and output capacitors,
are automotive AEC-Q200 rated and are available
from multiple component vendors.
Features
• Wide input voltage operating range of 8V to 65V
• 1% accurate fixed 3.3V, 5V, or adjustable output
down to 0.8V
• Switching frequency of 400kHz externally
synchronizable up or down by 20%
• Full-load efficiency of 89.3% at 12V
24V and 85.4% at 48V
IN
• 260µA operating current at 48V
• Designed for low Electromagnetic Interference
(EMI)
SNVU917 – SEPTEMBER 2024
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range DC/DC device
, 88.1% at
IN
IN
IN
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– Dual-random spread spectrum EMI mitigation
– Meets CISPR 25 Class 5 and UNECE Reg 10
EMI standards
• Peak current-mode control architecture provides
fast line and load transient response
– Integrated slope compensation adaptive with
switching frequency
– Forced pulsed width modulation (FPWM) or
pulsed frequency modulation (PFM) operation
– Optional internal or external loop compensation
• Integrated high-side and low-side power MOSFETs
• Overcurrent protection (OCP) with hiccup mode for
sustained overload conditions
• SYNCOUT signal 180° out-of-phase with internal
clock
• Power-Good signal with 100kΩ pullup resistor to
VCC
• Internal 3ms soft start
• Fully assembled, tested, and proven PCB layout
Applications
• High-current automotive electronic systems
• ADAS and body electronics
• Infotainment systems
• Automotive HEV/EV powertrain systems
LM706A0-Q1 Buck Converter Evaluation Module
Description
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