MIC2142BD5 TR

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The MIC2142BD5 TR is a 1.5-A flat-square-wave-generating synchronous step-down DC-DC converter. It is an integrated high-efficiency switching regulator designed to provide the power required by various systems and applications. The device integrates a controller, gate driver and power stage in a single package, allowing it to be used in a wide variety of applications. This device is designed to provide a highly accurate and reliable power output, even under heavy load and dynamic operating conditions.

The MIC2142BD5 TR is a two-stage regulator, which can efficiently convert the input voltage from a range of 4.5V to 17V to a regulated output voltage of 0.9V to 5.5V. The device combines a switching FET, a high-voltage startup regulator and a DC/DC converter, which helps reduce external component count and board area. The device delivers an efficiency of up to 88%. It is designed to operate over a wide input voltage range, allowing it to be used in communication network infrastructures, automotive, consumer and industrial applications.

The MIC2142BD5 TR features a wide range of protection features, such as over-current protection (OCP), over-temperature protection (OTP), and short-circuit protection (SCP). The device includes an over-voltage protection (OVP) to ensure that the output voltage does not exceed the set limit in case of an over-voltage fault. Additionally, the device is compliant with the Green-Mode-Controlled Soft Switching requirements, enabling it to reduce switching losses and produce low electromagnetic interference (EMI). This device also integrates a low-noise linear regulator, which helps improve power efficiency and reduce power dissipation.

The MIC2142BD5 TR employs a current mode PWM control scheme and is based on proprietary hysteretic-mode technology. The device functions as a switch or a current source, depending on the type of external control signal placed at the enable pin. In the switch mode, the current through the output switch is zero. This mode is used to provide minimum output voltage ripple. In the current source mode, the output switch is regulated by the enable pin and produces a constant current for loading. This mode is used to reduce coaxial inductor size and power losses.

The MIC2142BD5 TR converter has a small size, low heat dissipating and low power output design, making it ideal for high-current and high-power applications. The device can be used in a variety of applications, such as LED backlighting, notebook adapters, power over Ethernet (PoE) and telecom equipment.

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