• Functional Safety-Capable
Documentation available to aid functional safety
system design
• Suited for wide input operating range battery
applications
3.5-V to 60-V operating range (65-V abs max)
2.97-V to 16-V when BIAS = VCC
Minimum boost supply voltage 1.5 V when
BIAS ≥ 3.5 V
Input transient protection up to 65 V
Minimized battery drain
• Low shutdown current (IQ ≤ 2.6 μA)
• Low operating current (IQ ≤ 490 μA)
• Small solution size and low cost
Maximum switching frequency of 2.2 MHz
12-Pin WSON package (3 mm × 2 mm)
Integrated error amplifier allows primary-side
regulation without optocoupler (flyback)
• EMI mitigation
Selectable dual random spread spectrum
Lead-less package
• Higher efficiency with low-power dissipation
100-mV ±7% accurate current limit threshold
Strong 1.5-A peak standard MOSFET driver
Supports external VCC supply
• Avoid AM band interference and crosstalk
Optional clock synchronization
Dynamically programmable switching frequency
from 100 kHz to 2.2 MHz
• Integrated protection features
Constant peak current limiting over input
voltage
Optional hiccup mode overload protection (see
the Device Comparison Table)
Programmable line UVLO
OVP protection
Thermal shutdown
• ±1% accuracy feedback reference
• Supports additional slope compensation
• Programmable soft start
• PGOOD indicator
• Create a custom design using the LM5156x with
the WEBENCH® power designer
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