LM2577S-12 National Semiconductor, LM2577S-12 Datasheet - Page 14

• Manufacturer Part Number: LM2577S-12
• Description: IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,SIP,5PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM2577S-12

• Rohs Compliant: NO

LM1577-ADJ, LM2577-ADJ Test Circuit
01146809
L = 415-0930 (AIE)
D = any manufacturer
C
= Sprague Type 673D
OUT
Electrolytic 680 µF, 20V
R1 = 48.7k in series with 511Ω (1%)
R2 = 5.62k (1%)
Note: Pin numbers shown are for TO-220 (T) package
FIGURE 3. Circuit Used to Specify System Parameters for ADJ Versions
Application Hints
01146810
Note: Pin numbers shown are for TO-220 (T) package
*Resistors are internal to LM1577/LM2577 for 12V and 15V versions.
FIGURE 4. LM1577/LM2577 Block Diagram and Boost Regulator Application
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