LM2598S-ADJ National Semiconductor, LM2598S-ADJ Datasheet - Page 7

• Manufacturer Part Number: LM2598S-ADJ
• Description: SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator/ with Features
• Manufacturer: National Semiconductor

Typical Performance Characteristics
Soft-start
Soft-start Response
Typical Performance Characteristics
Continuous Mode Switching Waveforms
V
L = 68 µH, C
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.5A/div.
C: Output Ripple Voltage, 50 mV/div.
IN
= 20V, V
OUT
Horizontal Time Base: 2 µs/div.
OUT
= 5V, I
= 120 µF, C
LOAD
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= 1A
OUT
ESR = 100 m
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Shutdown/Soft-start
Current
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(Circuit of Figure 1 )
Shutdown/Soft-start
Threshold Voltage
Discontinuous Mode Switching Waveforms
V
L = 22 µH, C
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.5A/div.
C: Output Ripple Voltage, 50 mV/div.
(Circuit of Figure 1 ) (Continued)
7
IN
= 20V, V
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OUT
Horizontal Time Base: 2 µs/div.
OUT
= 5V, I
= 220 µF, C
LOAD
Delay Pin Current
= 600 mA
OUT
ESR = 50 m
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