BA6161F-E2

BA6161F-E2 is a step-down DC/DC converter IC that can be used as a voltage regulator. It is available in two different packages: 8-pin DIP, 8-pin flat small outline package (SOIC). This IC is designed for a wide range of applications, from LED driver and LED stroke circuits to automotive electronics, computer peripherals, and audio and video systems.

The BA6161F-E2 provides good efficiency at light load current of 70%, a wide input voltage range of 4V to 36V, as well as a high output current capability of 2.5A. It features a low quiescent current of 1mA to deliver low ripple, low noise, and low EMI. The BA6161F-E2 also has an input voltage over range protection of up to 24V.

The BA6161F-E2 has two working modes: cycle by cycle current limit and 23.5μs overcurrent protection. In cycle-by-cycle mode, the current limitation level is about 280mA. When the device reaches the exceeding current limit, it enters the over-current protection mode, disabling the output voltage of the device and the device is reset once the voltage is removed.

The working principle of the BA6161F-E2 is based on a pulse width modulation (PWM) technique. This technique implies the application of pulses with a specific width or duration at regular intervals. The pulses control the amount of energy applied to the circuit\'s load. This method ensures an efficient regulation of output voltage and power.

The BA6161F-E2 is also equipped with under-voltage lockout (UVLO) protection, the soft start (SST) feature, and temperature protection. The UVLO circuit shuts off the output voltage when the input voltage drops below the set threshold. The SST prevents sudden surges in load current during startup, allowing current to be applied in a controlled manner. And the temperature protection circuit monitors the junction temperature of the IC and disables the output voltage when the temperature exceeds the manufacturer’s permissible limits to protect the IC from damages due to excessive temperature.

In summary, the BA6161F-E2 is a step-down DC/DC converter IC suitable for a wide range of applications. It is designed with low quiescent current, low ripple, low noise, and low EMI, as well as overcurrent protection, under-voltage lockout, soft start, and temperature protection features. The IC features a wide input voltage range of 4V to 36V and a maximum output current of 2.5A.