lm2594hvmx-adj National Semiconductor Corporation, lm2594hvmx-adj Datasheet - Page 7

• Manufacturer Part Number: lm2594hvmx-adj
• Description: Simple Switcher Power Converter 150 Khz 0.5a Step-down Voltage Regulator
• Manufacturer: National Semiconductor Corporation

Typical Performance Characteristics
Continuous Mode Switching Waveforms
V
L = 100 µH, C
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.2A/div.
C: Output Ripple Voltage, 20 mV/div.
Load Transient Response for Continuous Mode
V
L = 100 µH, C
A: Output Voltage, 50 mV/div. (AC)
B: 200 mA to 500 mA Load Pulse
IN
IN
= 20V, V
= 20V, V
Horizontal Time Base: 50 µs/div.
OUT
OUT
Horizontal Time Base: 2 µs/div.
OUT
OUT
= 5V, I
= 5V, I
= 120 µF, C
= 120 µF, C
LOAD
LOAD
= 400 mA
= 200 mA to 500 mA
OUT
OUT
ESR = 140 m
ESR = 140 m
DS012439-19
DS012439-17
Discontinuous Mode Switching Waveforms
V
L = 33 µH, C
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.2A/div.
C: Output Ripple Voltage, 20 mV/div.
Load Transient Response for Discontinuous Mode
V
L = 33 µH, C
A: Output Voltage, 50 mV/div. (AC)
B: 100 mA to 200 mA Load Pulse
7
IN
IN
= 20V, V
= 20V, V
Horizontal Time Base: 200 µs/div.
OUT
OUT
Horizontal Time Base: 2 µs/div.
OUT
OUT
= 5V, I
= 5V, I
= 220 µF, C
= 220 µF, C
LOAD
LOAD
= 200 mA
= 100 mA to 200 mA
OUT
OUT
ESR = 60 m
ESR = 60 m
DS012439-20
DS012439-18
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