MMPF0100 datasheet(128/136 Pages) FREESCALE

부품명	MMPF0100

상세설명	14 Channel Configurable Power Management Integrated Circuit

PDF	136 Pages

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제조업체	FREESCALE [Freescale Semiconductor, Inc]

홈페이지	http://www.freescale.com

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128 / 136 page

Analog Integrated Circuit Device Data

128

Freescale Semiconductor

PF0100

Typical Applications

PF0100 Layout Guidelines

8.2.5

Switching Regulator Layout Recommendations

1. Per design, the switching regulators in PF0100 are designed to operate with only one input bulk capacitor. However, it is

recommended to add a high frequency filter input capacitor (CIN_hf), to filter out any noise at the regulator input. This

capacitor should be in the range of 100 nF and should be placed right next to or under the IC, closest to the IC pins.

2. Make high-current ripple traces low-inductance (short, high W/L ratio).

3. Make high-current traces wide or copper islands.

4. Make high-current traces symetrical for dual–phase regulators (SW1, SW3).

Diver Controller

SWxIN

SWxLX

SWxFB

COUT

CIN

SWx

VIN

Compensation

CIN_HF

Figure 30. Generic Buck Regulator Architecture

SWxIN

Inductor

CIN

COUT

CIN_HF

SWxLX

GND

SWxFB

Figure 31. Recommended Layout for Buck Regulators

MMPF0100 데이터시트(PDF) 128 Page - Freescale Semiconductor, Inc