Step-Down Regulator for Multi-Band/Mode RF Power Amplifiers: SKY87000

Source: Skyworks Solutions, Inc.

Step-Down Regulator for Multi-Band/Mode RF Power Amplifiers: SKY87000

The SKY87000 is a step-down regulator with auto-bypass LDO for multi-band and multi-mode RF power amplifiers. It features a 2.7 to 5.5 V input voltage range, a 0.4 V to 4.25 V dynamic output voltage, an internally compensated current/mode architecture, an integrated 85mΩ bypass regulator, and much more.

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This step-down regulator is ideal for applications involving multi-mode RF power amplifiers, portable media devices, wireless USB data cards, and smartphones/mobile/cellular phones. It has the ability to dynamically control the operating voltage of a multi-mode WCDMA or GSM/EDGE power amplifier solution. Additionally, this device can support up to 2.5 A of a total load current with step-down and bypass regulators.

The SKY87000 step-down regulator comes in a 9-bump Wafer Level Chip Scale Package (WLCSP) with a 0.5 mm pin pitch. System performance is enhanced with an 85mΩ bypass regulator that allows the power amplifier to be powered directly from the battery. The implementation of the bypass regulator improves extreme load transient and dynamic output transition performance. Download the datasheet for more information.

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