TPS745-Q1_V06 datasheet(27/45 Pages) TI

tên linh kiện	TPS745-Q1

Giải thích chi tiết về linh kiện	TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages

Download	45 Pages

Scroll/Zoom	100%

nhà sản xuất	TI [Texas Instruments]

Trang chủ	http://www.ti.com

Logo

27 / 45 page

I

=

OUT(t)

C

OUT

´ dV

(t)

dt

V

OUT(t)

R

LOAD

+

TPS745-Q1

EN

IN

OUT

VIN

VOUT

CIN

COUT

RPG*

PG

*Pull-up resistor not required

for push-pull option

27

TPS745-Q1

www.ti.com

SBVS355A – JUNE 2019 – REVISED OCTOBER 2019

Product Folder Links: TPS745-Q1

Submit Documentation Feedback

8.2 Typical Application

Figure 62. TPS745-Q1 Typical Application

8.2.1 Design Requirements

Table 3 summarizes the design requirements for Figure 62.

Table 3. Design Parameters

PARAMETER

DESIGN REQUIREMENT

Input voltage

3.3 V

Output voltage

1.8 V, ±1%

Input current

300 mA, maximum

Output load

300-mA DC

Maximum ambient temperature

105°C

8.2.2 Detailed Design Procedure

Input and output capacitors are required to achieve the output voltage transient requirements. Capacitance

values of 2.2 µF are selected to give the maximum output capacitance in a small, low-cost package; see the

Input and Output Capacitor Selection section for details.

8.2.2.1 Input Current

During normal operation, the input current to the LDO is approximately equal to the output current of the LDO.

During start-up, the input current is higher as a result of the inrush current charging the output capacitor. Use

Equation 6 to calculate the current through the input.

where:

•

VOUT(t) is the instantaneous output voltage of the turn-on ramp

•

dVOUT(t) / dt is the slope of the VOUT ramp

•

RLOAD is the resistive load impedance

(6)

Số phần tương tự - TPS745-Q1_V06

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	TPS745-Q1	2Mb / 30P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in a Small Wettable Flank WSON Package
	TPS745-Q1	3Mb / 41P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages

More results

Mô tả tương tự - TPS745-Q1_V06

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	3Mb / 41P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 44P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	2Mb / 29P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in a Small Wettable Flank WSON Package
	TPS745-Q1	2Mb / 30P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in a Small Wettable Flank WSON Package
	TPS746-Q1	3Mb / 41P	[Old version datasheet] TPS746-Q1 1-A LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS746-Q1	3Mb / 45P	[Old version datasheet] TPS746-Q1 1-A LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS746-Q1	4Mb / 44P	[Old version datasheet] TPS746-Q1 1-A LDO With Power-Good in Small Wettable Flank WSON Packages

More results

TPS745-Q1 bảng dữ liệu(PDF) 27 Page - Texas Instruments

TPS745-Q1 bảng dữ liệu(HTML) 27 Page - Texas Instruments

Số phần tương tự - TPS745-Q1_V06

Mô tả tương tự - TPS745-Q1_V06

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

bảng dữ liệu tải về

Link URL