SCT81420.pdf? 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
