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Skyworks Solutions, Inc. 28 V Step-Down DC-DC Controller with Optional Synchronous MOSFET Driver SKY87609

Description
The SKY87609 is a step-down DC-DC controller that operates over a wide 4.5 V to 28 V input voltage range and regulates output voltage as low as 0.9 V while supplying up to 6 A to the output. The 450 kHz switching frequency allows an efficient step-down regulator design. The SKY87609 uses an adjustable output voltage that can be set from 0.9 V to 80% of the input voltage by an external resistive voltage divider. Internal soft-start prevents excessive inrush current without requiring an external capacitor. The SKY87609 includes input under-voltage and over-current protection to prevent damage in the event of a fault. Thermal overload protection prevents damage to the SKY87609 or circuit board when operating beyond its thermal capability. The SKY87609 is available in a small 12-pin 2.85 mm × 3.00 mm TSOPJW package. Features 4.5 V to 28 V input voltage Controller with internal 10 Ω refresh MOSFET Up to 6 A load current Optional low-side MOSFET driver Adjustable output voltage (0.9 V to 0.8 × VIN) Fixed 450 kHz switching frequency 4 ms soft-start period External compensation Less than 1 μA shutdown current Up to 97% efficiency Current limit protection Compact TSOPJW (12-pin, 2.85 mm × 3.00 mm) package (MSL1, 260 °C per JEDEC-J-STD-020) Applications Set-Top Boxes
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Suppliers

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Product
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Supplier Links
28 V Step-Down DC-DC Controller with Optional Synchronous MOSFET Driver - SKY87609 - Skyworks Solutions, Inc.
Irvine, CA, United States
28 V Step-Down DC-DC Controller with Optional Synchronous MOSFET Driver
SKY87609
28 V Step-Down DC-DC Controller with Optional Synchronous MOSFET Driver SKY87609
The SKY87609 is a step-down DC-DC controller that operates over a wide 4.5 V to 28 V input voltage range and regulates output voltage as low as 0.9 V while supplying up to 6 A to the output. The 450 kHz switching frequency allows an efficient step-down regulator design. The SKY87609 uses an adjustable output voltage that can be set from 0.9 V to 80% of the input voltage by an external resistive voltage divider. Internal soft-start prevents excessive inrush current without requiring an external capacitor. The SKY87609 includes input under-voltage and over-current protection to prevent damage in the event of a fault. Thermal overload protection prevents damage to the SKY87609 or circuit board when operating beyond its thermal capability. The SKY87609 is available in a small 12-pin 2.85 mm × 3.00 mm TSOPJW package. Features 4.5 V to 28 V input voltage Controller with internal 10 Ω refresh MOSFET Up to 6 A load current Optional low-side MOSFET driver Adjustable output voltage (0.9 V to 0.8 × VIN) Fixed 450 kHz switching frequency 4 ms soft-start period External compensation Less than 1 μA shutdown current Up to 97% efficiency Current limit protection Compact TSOPJW (12-pin, 2.85 mm × 3.00 mm) package (MSL1, 260 °C per JEDEC-J-STD-020) Applications Set-Top Boxes

The SKY87609 is a step-down DC-DC controller that operates over a wide 4.5 V to 28 V input voltage range and regulates output voltage as low as 0.9 V while supplying up to 6 A to the output. The 450 kHz switching frequency allows an efficient step-down regulator design.
The SKY87609 uses an adjustable output voltage that can be set from 0.9 V to 80% of the input voltage by an external resistive voltage divider. Internal soft-start prevents excessive inrush current without requiring an external capacitor.
The SKY87609 includes input under-voltage and over-current protection to prevent damage in the event of a fault. Thermal overload protection prevents damage to the SKY87609 or circuit board when operating beyond its thermal capability.
The SKY87609 is available in a small 12-pin 2.85 mm × 3.00 mm TSOPJW package.

Features

    • 4.5 V to 28 V input voltage
    • Controller with internal 10 Ω refresh MOSFET
    • Up to 6 A load current
    • Optional low-side MOSFET driver
    • Adjustable output voltage (0.9 V to 0.8 × VIN)
    • Fixed 450 kHz switching frequency
    • 4 ms soft-start period
    • External compensation
    • Less than 1 μA shutdown current
    • Up to 97% efficiency
    • Current limit protection
    • Compact TSOPJW (12-pin, 2.85 mm × 3.00 mm) package (MSL1, 260 °C per JEDEC-J-STD-020)

Applications

  • Set-Top Boxes
Supplier's Site Datasheet

Technical Specifications

  Skyworks Solutions, Inc.
Product Category IC Voltage Regulators
Product Number SKY87609
Product Name 28 V Step-Down DC-DC Controller with Optional Synchronous MOSFET Driver
Package Type Other; TSOPJW, 12L
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