The difference between LDO and DC-DC

1. Application scenarios

The design concept of LDO determines that if a large current is output, the voltage divided by the internal resistance of the chip is large, so the power consumption is large, so it is more suitable for use in small current designs.

2. Ripple

The output of the LDO is realized by a voltage divider resistor, and the voltage fluctuation is small, while the DCDC output has PWM, and the voltage fluctuation is large.

3. Heat generation

The LDO generates a large amount of heat because it is reflected in the internal resistance

4. Efficiency

The efficiency of LDO is much lower than that of DCDC

5. Costs

The cost of LDO is lower because its manufacturing process is simple

6. Static power consumption

Low static power consumption of LDO