Electrical Engineering Glossary Definition for Idle Mode™

Definition

A method for improving the efficiency of switching regulators by skipping pulses when the circuit is lightly loaded.

This variation in PWM (pulse-width modulation) combines the efficiency at low loads afforded by PFM (Pulse-Frequency Modulation) with PWM's efficiency and low-noise characteristics at higher loads. At light loads the circuit skips pulses as necessary (acting like a PFM circuit). At higher loads it acts like PWM. The net result is the maximum efficiency over the widest possible load range.

Learn more: "DC-DC Converter Tutorial" (see the paragraphs around Figure 14).

Related Parts

• MAX1636 - Low-Voltage, Precision Step-Down Controller for Portable CPU Power

See Also

• PFM
• PWM
• Show application notes for: "Idle Mode™"
• Show site-wide search results for: "Idle Mode™"

Find a term alphabetically:

0-9

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Comment on This Term (Corrections, Suggestions, etc.)

Suggest Another Term We Should Add