MAX16909RAUE/V+T

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The MAX16909RAUE/V+T is a switch mode step-down DC to DC converter in the MAXIM power-management integrated circuit (PMIC) range. This device is ideal for powering low quiescent current, low drop-out (LDO) regulators, RF transceivers, and low voltage digital signal processors. It is a low cost, high performance, space-efficient solution for energy limited applications such as monitoring and communication devices.

The MAX16909RAUE/V+T offers highly advanced performance and a low quiescent current of only 800nA in normal operation. Its high efficiency of up to 98% reduces solution size and allows the use of smaller inductors and capacitors compared to traditional linear regulators.

The MAX16909RAUE/V+T is rated for an input voltage of 2.5V-8V, an output voltage of 0.9V to 5.25V and a switching frequency of 1050KHz. This PMIC comes with a adjustable soft-start feature and internal compensation making it easy to use. In addition, it also has a logic-controlled shutdown mode that is used to power down the device when not in use, thereby reducing the supply current consumption and prolonging the battery life.

The MAX16909RAUE/V+T is available in a standard 10-pin microSMD package, and also as a 16-SubSTAMP device for minimized footprint applications. Its small size, low quiescent current, and high efficiency make it ideal for use in a wide range of portable battery powered applications such as cellular phones and PDAs.

In operation, the MAX16909RAUE/V+T integrates an energy efficient switch mode step-down DC to DC converter employing a fixed frequency, current mode, monolithic stepdown PWM converter. It generates a regulated output voltage by managing the charge of the output capacitors with the switching operations of its internal transistors.

The device employs a unique feedforward compensation scheme to improve load and line transient response, providing stable output voltage under varying load conditions. The converter operates at a fixed frequency of up to 1050 KHz, and uses internal current-mode control to regulate output voltage. An adjustable soft start feature controls the device’s output charge ramp-up rate, to limit output inrush current.

The MAX16909RAUE/V+T is designed to generate output voltages suitable for powering logic circuits and for pre-loading of low voltage LDO regulators. Its low quiescent current and high efficiency design makes it ideal for use in battery powered applications. Its fixed frequency operation, adjustable soft-start, and current-mode control provide stable and predictable output voltage under varying load conditions.

In summary, the MAX16909RAUE/V+T is a switch mode step-down DC to DC converter in the MAXIM power-management integrated circuit range. It is available in a standard 10-pin microSMD package, and also as a 16-SubSTAMP device for minimized footprint applications. It offers excellent performance with a low quiescent current of only 800nA, a high efficiency of up to 98%, and an adjustable soft-start feature. It is ideal for use in battery-powered applications such as cellular phones and PDAs.

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