1

00:00:00,900 --> 00:00:06,366

Hello everyone, in this lesson we will talk about the LDO method in the power supply method

2

00:00:06,966 --> 00:00:10,766

Its circuit structure is relatively simple

3

00:00:11,133 --> 00:00:16,200

It generally consists of a voltage regulator chip and some surrounding circuits.

4

00:00:16,866 --> 00:00:21,766

For example, the picture on the left is a relatively simple LDO power supply

5

00:00:22,466 --> 00:00:28,300

As long as there is a power supply input, it can directly output power supply

6

00:00:29,600 --> 00:00:34,933

Of course, the power supply method of LDO also has some slightly complicated circuits.

7

00:00:36,233 --> 00:00:43,100

For example, in the picture on the right, the voltage regulator chip will have more pins and more functions.

8

00:00:45,766 --> 00:00:50,633

This chip only needs to have power supply input and open signal,

9

00:00:51,733 --> 00:00:55,700

it can directly output voltage, and also output a PG signal

10

00:00:57,933 --> 00:01:03,166

Although the circuit of LDO power supply is relatively simple and the cost is relatively low,

11

00:01:03,300 --> 00:01:10,100

its power is generally relatively small and can only be used in some circuits with relatively low power consumption.