LM2597, LM2597HV
SNVS119C –MARCH 1998–REVISED APRIL 2013
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Block Diagram
Typical Circuit and Layout Guidelines
Component Values shown are for VIN = 15V, VOUT = 5V, ILOAD = 500 mA.
CIN — 47 μF, 50V, Aluminum Electrolytic Nichicon “PL Series”
COUT — 120 μF, 25V Aluminum Electrolytic, Nichicon “PL Series”
D1
L1
— 1A, 30V Schottky Rectifier, 1N5818
— 100 μH, L20
Typical Values
CSS — 0.1 μF
CDELAY — 0.1 μF
RPull Up — 4.7k
*Use Bias Supply pin for 5V and 12V Versions
Figure 30. Fixed Output Voltage Versions
20
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