lm2597hvn-5.0 National Semiconductor Corporation, lm2597hvn-5.0 Datasheet - Page 32

• Manufacturer Part Number: lm2597hvn-5.0
• Description: Simple Switcher Power Converter 150 Khz 0.5a Step-down Voltage Regulator, With Features
• Manufacturer: National Semiconductor Corporation

www.national.com
Application Information
C
C
D1
L1
C
C
R3
C
C
D1
L1
C
C
CFF
R1
R2
R3
IN
OUT
SS
D
IN
OUT
SS
D
— Surface Mount Inductor, Coilcraft DO33
— Surface Mount Inductor, Coilcraft DO33
— 1A, 40V Surface Mount Schottky Rectifier
— Error Flag Pullup Resistor (surface mount chip resistor)
— 1A, 40V Surface Mount Schottky Rectifier
— Output Voltage Program Resistor (surface mount chip resistor)
— Output Voltage Program Resistor (surface mount chip resistor)
— Error Flag Pullup Resistor (surface mount chip resistor)
— Delay Capacitor (surface mount ceramic chip capacitor)
— Delay Capacitor (surface mount ceramic chip capacitor)
— 68 µF, 20V Solid Tantalum, AVX, “TPS Series” (surface mount, “D” size)
— 10 µF, 35V, Solid Tantalum, AVX, “TPS Series” (surface mount, “D” size)
— 10 µF, 35V, Solid Tantalum, AVX, “TPS Series” (surface mount, “D” size)
— Soft-start Capacitor (surface mount ceramic chip capacitor)
— Soft-start Capacitor (surface mount ceramic chip capacitor)
— Feedforward Capacitor (surface mount ceramic chip capacitor)
— 100 µF, 10V Solid Tantalum, AVX, “TPS Series” (surface mount, “D” size)
TYPICAL SURFACE MOUNT PC BOARD LAYOUT, ADJUSTABLE OUTPUT (2X size)
TYPICAL SURFACE MOUNT PC BOARD LAYOUT, FIXED OUTPUT (2X size)
FIGURE 35. 2X Printed Circuit Board Layout
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DS012440-54
DS012440-55