LM2743MTCSLASHNOPB datasheet(33/44 Pages) TI2

tên linh kiện	LM2743MTC/NOPB

Giải thích chi tiết về linh kiện	LM2743 2.2-V to 16-V Input, voltage mode, synchronous buck controller with tracking

PDF	44 Pages

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nhà sản xuất	TI2 [Texas Instruments]

Trang chủ	https://www.ti.com

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Controller

VOUT

GND

VIN

Inductor

CIN

COUT

Place controller as

close to the switches

LM2743

www.ti.com

SNVS276I – APRIL 2004 – REVISED FEBRUARY 2019

Product Folder Links: LM2743

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9 Power Supply Recommendations

The LM2743 is a power management device. The power supply for the device is any DC voltage source within

the specified input range (see Design Requirements).

10 Layout

10.1 Layout Guidelines

In a buck regulator, the primary switching loop consists of the input capacitor and MOSFET switches. Minimixing

the area of this loop reduces the stray inductance, and minimizes noise and possible erratic operation. High

quality input capacitors should be placed as close as possible to the MOSFET switches, with the positive side of

the input capacitor connected directly to the high-side MOSFET drain, and the ground side of the capacitor

connected as close as possible to the low-side MOSFET switch ground connection. Connect all of the low power

ground connections directly to the SGND pin. Connect the VCC capacitor directly to the PGND pin.

10.2 Layout Example

Figure 44. Layout Recommendation

LM2743MTC/NOPB bảng dữ liệu(PDF) 33 Page - Texas Instruments