Datasheet

LM2588
www.ti.com SNVS117D –APRIL 1998–REVISED APRIL 2013
C
IN1
—100 μF, 25V Aluminum ElectrolyticC
IN2
—0.1 μF CeramicL—15 μH, Renco #RL-5472-5D—1N5820C
OUT
—680
μF, 16V Aluminum ElectrolyticC
C
—0.47 μF CeramicR
C
—2kFor 12V Devices: R1 = Short (0Ω) andR2 = OpenFor ADJ
Devices: R1 = 48.75k, ±0.1% andR2 = 5.62k, ±0.1%
Figure 19. LM2588-12 and LM2588-ADJ
Block Diagram
For Fixed Versions 3.3V, R1 = 3.4k, R2 = 2k5.0V, R1 = 6.15k, R2 = 2k12V, R1 = 8.73k, R2 = 1kFor Adj. VersionR1 =
Short (0Ω), R2 = Open
Flyback Regulator Operation
The LM2588 is ideally suited for use in the flyback regulator topology. The flyback regulator can produce a single
output voltage, such as the one shown in Figure 20, or multiple output voltages. In Figure 20, the flyback
regulator generates an output voltage that is inside the range of the input voltage. This feature is unique to
flyback regulators and cannot be duplicated with buck or boost regulators.
Copyright © 1998–2013, Texas Instruments Incorporated Submit Documentation Feedback 13
Product Folder Links: LM2588