RICHTEK RT8207A DH=ED DH=CM DH=CF DH=… Memory Power Supply Controller IC CHIP

£3.99

Condition: New

RT8207A Datasheet

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  •   Size Guide

    Size Guide

    Size Chest Waist Hips
    XS 34 28 34
    S 36 30 36
    M 38 32 38
    L 40 34 40
    XL 42 36 42
    2XL 44 38 44

    All measurements are in INCHES

    and may vary a half inch in either direction.

    Size Chest Waist Hips
    2XS 32 26 32
    XS 34 28 34
    S 36 30 36
    M 38 32 38
    L 40 34 40
    XL 42 36 42

    All measurements are in INCHES

    and may vary a half inch in either direction.

    Size Chest Waist Hips
    XS 34 28 34
    S 36 30 36
    M 38 32 38
    L 40 34 40
    XL 42 36 42
    2XL 44 38 44

    All measurements are in INCHES

    and may vary a half inch in either direction.

  •  Delivery & Return

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Complete DDRII/DDRIII Memory Power Supply Controller

The RT8207 provides a complete power supply for both DDRII/DDRIII memory systems. It integrates a synchronous PWM buck controller with a 3A sink/source tracking linear regulator and a buffered low noise reference. The PWM controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high-voltage batteries to generate low voltage chipset RAM supplies in notebook computers. The constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “ instant-on ”  response to load transients while maintaining a relatively constant switching frequency. The RT8207 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by its ability to drive very large synchronous rectifier MOSFETs. The buck conversion allows this device to directly step down high-voltage batteries for the highest possible efficiency. The 3A sink/source LDO maintains fast transient response only requiring 20 μ F of ceramic output capacitance. In addition, the LDO supply input is available externally to significantly reduce the total power losses. The RT8207 supports all of the sleep state controls placing VTT at High-Z in S3 and discharging VDDQ, VTT and VTTREF (soft-off) in S4/S5.

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SKU: 121649725646 Category:
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