AS1345A-BWLT-12

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The AS1345A-BWLT-12 is a buck regulator integrated circuit (IC) which can be used to provide a fixed output voltage, or to adjust the output voltage in response to an analog voltage. This buck regulator IC is categorised under PMIC (power management integrated circuits) and more specifically within Voltage Regulators and DC DC Switching Regulators.

The AS1345A-BWLT-12 is an ideal power management solution for a wide range of applications including powering communications radars and digital baseband systems. It offers both a switching (Buck) and linear (LDO) mode, a wide 2.3V to 16V input voltage range, and an adjustable output voltage of 0.83V to 13.2V. The device is designed to consume minimal quiescent current and to support a load current of up to 1.2A. The buck switch operates at a frequency of 270 KHz and offers adjustable soft-start and is protected against short-circuit and overvoltage conditions.

From a practical perspective, the main elements of the AS1345A-BWLT-12 include the internal control logic, the error amplifier, the PWM control block, and the external MOSFET switching element. In operation, the control logic monitors the input voltage and output voltage and provides a PWM signal for the switching MOSFET. This signal is modulated in sync with the oscillator circuit to regulate the voltage and current flow across the switching element to obtain the pre-specified output voltage level.

The AS1345A-BWLT-12 can handle a wide range of input and output voltages, providing high output accuracy (<3% over full load range) and good power efficiency (up to 97%). It also features a line under-voltage lockout mode that is adjustable and externally programmable. To ensure accurate and robust circuit performance, the IC can operate over a wide temperature range of -40ºC to +150ºC while still meeting the relevant thermal protection standards.

In conclusion, the AS1345A-BWLT-12 is an extremely efficient, highly accurate, and cost-effective DC DC switching regulator, suitable for a variety of applications. Thanks to its design and features, this device provides robust, reliable and efficient performance in even the most challenging environment. Moreover, its wide input voltage range, adjustable soft-start and line under-voltage lockout mode are all valuable benefits that make the AS1345A-BWLT-12 an ideal choice for power management requirements.

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