TL3577 Datasheet, PDF (10/21 Pages) Texas Instruments – 100-kHz CURRENT-MODE SIMPLE STEP-UP/FLYBACK SWITCHING REGULATOR

TL3577
100-kHz CURRENT-MODE SIMPLE STEP-UP/FLYBACK SWITCHING REGULATOR
SLVS633 – OCTOBER 2006
APPLICATION INFORMATION
Figure 2 shows a typical application of the TL3577 in a boost regulator.
5-V
Input
0.1 µF
100 µH
V_IN
SWITCH
680 µF
TL3577-ADJ
17.4 kW
12 V at £800 mA
Regulated Output
2.2 kW
0.33 µF
COMP
FEEDBACK
GND
2 kW
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Figure 2. Typical Application – Boost Regulator
Figure 3 shows a typical application of the TL3577 in a flyback regulator.
100 µF
5V
(4 V to 6 V)
1 µF
1:2.5
47 µH
330 µF
12 V at 150 mA
2.4 kΩ
0.47 µF
V_IN
SWITCH
TL3577-ADJ
COMP
FEEDBACK
GND
330 µF
12 V at 150 mA
17.4 kΩ
2 kΩ
Figure 3. Typical Application – Flyback Regulator
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