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| TL3577 Datasheet, PDF (2/21 Pages) Texas Instruments – 100-kHz CURRENT-MODE SIMPLE STEP-UP/FLYBACK SWITCHING REGULATOR | |||
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TL3577
100-kHz CURRENT-MODE SIMPLE STEP-UP/FLYBACK SWITCHING REGULATOR
SLVS633 â OCTOBER 2006
FUNCTIONAL BLOCK DIAGRAM
VIN
SWITCH
Current Limit,
Thermal Limit, and
Undervoltage Shutdown
2.5-V
Regulator
Logic
Driver
Stage
3-A 65-V
NPN Switch
www.ti.com
100-kHz
Oscillator
Comparator
Soft
Start
Corrective
Ramp
Voltage
+
S
Amp
+ Current-
Sense
Voltage
1.23-V
Error Reference
Amplifier
Current-
Sense
Resistor
FEEDBACK
COMP
GND
2
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