LM5175PWPR datasheet(23/43 Pages) TI2

tên linh kiện	LM5175PWPR

Giải thích chi tiết về linh kiện	LM5175 42-V Wide VIN Synchronous 4-Switch Buck-Boost Controller

PDF	43 Pages

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nhà sản xuất	TI2 [Texas Instruments]

Trang chủ	https://www.ti.com

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SENSE(BOOST)

L(PEAK )

170 mV 70%

8.2 m

SENSE(BUCK)

OUT(MAX)

76 mV 70%

8.8 m

LM5175

www.ti.com

SNVSA37A – OCTOBER 2015 – REVISED MAY 2016

Product Folder Links: LM5175

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The maximum RMS current occurs at D = 0.5, which gives ICIN(RMS) = IOUT/2 = 3 A. A combination of ceramic and

bulk capacitors should be used to provide short path for high di/dt current and to reduce the output voltage ripple.

The complete schematic in Figure 24 is a good starting point for CIN for typical applications.

9.2.2.7 Sense Resistor (RSENSE)

The current sense resistor between the CS and CSG pins should be selected to ensure that current limit is set

high enough for both buck and boost modes of operation. For the buck operation, the current limit resistor is

given by:

(22)

For the boost mode of operation, the current limit resistor is given by:

(23)

The closest standard value of RSENSE = 8 mΩ is selected based on the boost mode operation.

LM5175PWPR bảng dữ liệu(PDF) 23 Page - Texas Instruments