SNVA432D March 2010 – January 2022 LM21305
The LM21305 is designed to fit a wide variety of applications. A design calculator tool for the LM21305 is available to accelerate the design process. Also, the LM21305 is enabled through Texas Instruments WEBENCH® power designer. A few design examples are given here for convenience and only the components that need to be modified are listed below. Design examples are for the following:
VOUT | 1.2 V | 1.8 V | 2.5 V | 3.3 V | 5 V |
---|---|---|---|---|---|
C6 | 3300 pF, 25 V | 3300 pF, 25 V | 4700 pF, 25 V | 4700 pF, 25 V | 4700 pF, 25 V |
L1 | 1.5 µH, 10 A | 2.2 µH, 10 A | 2.2 µH, 10 A | 3.3 µH, 10 A | 3.3 µH, 10 A |
R5 | 10 kΩ, 1% | 20 kΩ, 1% | 31.6 kΩ, 1% | 45.3 kΩ, 1% | 73.2 kΩ, 1% |
R7 | 3.32 kΩ, 1% | 4.22 kΩ, 1% | 5.10 kΩ, 1% | 7.15 kΩ, 1% | 8.2 kΩ, 1% |