LD2982AM32R datasheet(14/20 Pages) STMICROELECTRONICS

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LD2982AM32R 数据表(PDF) 14 Page - STMicroelectronics

部件名	LD2982AM32R

功能描述	Very low drop and low noise voltage regulator with inhibit function, low ESR capacitors compatible

PDF	20 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

14 / 20 page

Application notes

LD2982Axx - LD2982Bxx

14/20

6.6

Reverse current

The power transistor used in the LD2982 has not an inherent diode connected between the

regulator input and output. If the output is forced above the input, no current will flow from

the output to the input across the series pass transistor. When a VREV voltage is applied on

the output, the reverse current measured flows to the GND across the two feedback

resistors. This current typical value is 160 µA. R1 and R2 resistors are implanted type;

typical values are, respectively, 42.6 k

Ω and 51.150 kΩ.

Figure 17.

Reverse current test circuit

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