The LM5176-Q1 is a synchronous
four-switch buck-boost DC/DC controller capable of regulating the output voltage at,
above, or below the input voltage. The LM5176-Q1 operates over a wide input voltage
range of 4.2 V to 55 V (60 V absolute maximum) to support a variety of
applications.
The LM5176-Q1 employs current-mode
control both in buck and boost modes of operation for superior load and line
regulation. The switching frequency is programmed by an external resistor and can be
synchronized to an external clock signal.
The device also features a
programmable soft-start function and offers protection features including
cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output
overvoltage protection (OVP), and thermal shutdown. In addition, the LM5176-Q1
features optional average input or output current limiting, optional spread spectrum
to reduce peak EMI, and optional hiccup mode protection in sustained overload
conditions.
The LM5176-Q1 is a synchronous
four-switch buck-boost DC/DC controller capable of regulating the output voltage at,
above, or below the input voltage. The LM5176-Q1 operates over a wide input voltage
range of 4.2 V to 55 V (60 V absolute maximum) to support a variety of
applications.
The LM5176-Q1 employs current-mode
control both in buck and boost modes of operation for superior load and line
regulation. The switching frequency is programmed by an external resistor and can be
synchronized to an external clock signal.
The device also features a
programmable soft-start function and offers protection features including
cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output
overvoltage protection (OVP), and thermal shutdown. In addition, the LM5176-Q1
features optional average input or output current limiting, optional spread spectrum
to reduce peak EMI, and optional hiccup mode protection in sustained overload
conditions.