TEA1733AT/N1,118

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The TEA1733AT/N1,118 is a PMIC - AC DC Converters, Offline Switchers device.

A PMIC - AC DC Converter is a device that converts alternating current (AC) power to direct current (DC) power. It is a popular choice to use in applications where DC electricity is needed but there is no access to an appropriate power source. In these cases, AC/DC converters are used to convert the AC power to DC power. PMIC - Offline Switchers provide power switching of AC/DC conversion within power supply systems.

The TEA1733AT/N1,118 is a PMIC-AC DC Converters, Offline Switcher. It is an offline switcher that mainly provides initial power up, standby power, and standby power shut off functions. In addition, the device supports a wide range of output voltages, from 3.3V to 8.4V, and can be restarted even when in a power failure.

The TEA1733AT/N1,118 is a one-chip Pre-Occupied Power (POP) converter. This device includes an internal buck converter, an integrated oscillator and an internal current monitor, as well as an external high side MOSFET and a bias voltage source. The internal buck converter allows easy implementation of step-down type power conversion applications. Additionally, the integrated oscillator and current monitor enable fast transient response and robust overload protection.

The device supports a wide range of output voltage, from 2.2V to 8.4V. The operating frequency is adjustable between 25kHz and 300kHz, with an External Power Good/Under Voltage Lockout (UVLO) function. The device supports restart after a power failure, and its low quiescent current of 3.5 µA ensures extended battery life when in standby mode.

The device also integrates the STEP and SLEEP inputs, allowing additional system control and power savings. The STEP input enables precise adjustment of the output voltage level, with a programmable step voltage of 250 mV. The device also includes a power saving mode with two timing modes, short-time and long-time mode.

The device also offers a high EMI immunity, with at least two times better EMI emissions performance than the competition. It is also RoHS-compliant and includes overcurrent protection and thermal shutdown.

In summary, the TEA1733AT/N1,118 is an efficient, cost-effective, and easy-to-use device, ideal for providing power switching within power supply systems. Its wide output voltage range and integrated oscillator and current monitor provide fast transient response and robust overload protection, while its programmable step voltage, external power good/UVLO, STEP, and SLEEP inputs provide added system control and power savings. The device provides low quiescent current and high EMI immunity, making it a reliable choice for any application.

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