LM2671MX-5.0 National Semiconductor, LM2671MX-5.0 Datasheet - Page 8

• Manufacturer Part Number: LM2671MX-5.0
• Description: IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR/MOS,SOP,8PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM2671MX-5.0

• Rohs Compliant: NO

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Typical Performance Characteristics
A: V
B: Inductor Current, 0.2 A/div
C: Output Ripple Voltage, 50 mV/div AC-Coupled
A: Output Voltage, 100 mV/div, AC-Coupled
B: Load Current: 100 mA to 500 mA Load Pulse
SW
Pin Voltage, 10 V/div.
Load Transient Response for Continuous Mode
L = 100 μH, C
L = 100 μH, C
Continuous Mode Switching Waveforms
V
IN
Horizontal Time Base: 50 μs/div
Horizontal Time Base: 1 μs/div
= 20V, V
V
IN
OUT
OUT
= 20V, V
OUT
= 100 μF, C
= 100 μF, C
= 5V, I
OUT
LOAD
= 5V
OUT
OUT
= 500 mA
ESR = 0.1Ω
ESR = 0.1Ω
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10004218
8
(Circuit of Figure 2)
A: V
B: Inductor Current, 0.5 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
A: Output Voltage, 100 mV/div, AC-Coupled
B: Load Current: 100 mA to 400 mA Load Pulse
SW
Load Transient Response for Discontinuous Mode
Pin Voltage, 10 V/div.
L = 15 μH, C
Discontinuous Mode Switching Waveforms
L = 47 μH, C
V
IN
Horizontal Time Base: 200 μs/div
Horizontal Time Base: 1 μs/div
= 20V, V
OUT
V
OUT
IN
= 68 μF (2×), C
= 20V, V
OUT
= 68 μF, C
= 5V, I
OUT
LOAD
OUT
= 5V,
OUT
ESR = 50 mΩ
= 300 mA
ESR = 25 mΩ
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