LM2677T-5.0/NOPB National Semiconductor, LM2677T-5.0/NOPB Datasheet - Page 8

• Manufacturer Part Number: LM2677T-5.0/NOPB
• Description: IC REG SIMPLE SWITCHER TO-220-7
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2677T-5.0/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 5A
• Frequency - Switching: 260kHz
• Voltage - Input: 8 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-7 (Bent and Staggered Leads)
• Primary Input Voltage: 12V
• No. Of Outputs: 1
• Output Voltage: 5V
• Output Current: 5A
• No. Of Pins: 7
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 1 - Unlimited
• Supply Voltage Range: 8V To 40V
• Rohs Compliant: Yes
• Filter Terminals: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2677T-5.0; *LM2677T-5.0/NOPB; LM2677T-5.0

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A: V
B: Inductor Current, 2 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
A: Output Voltage, 100 mV//div, AC-Coupled.
B: Load Current: 500 mA to 5A Load Pulse
SW
Pin Voltage, 10 V/div.
Load Transient Response for Continuous Mode
L = 10 μH, C
L = 10 μH, C
Continuous Mode Switching Waveforms
Horizontal Time Base: 100 μs/div
V
Horizontal Time Base: 1 μs/div
IN
= 20V, V
V
OUT
OUT
IN
= 20V, V
= 400 μF, C
= 400 μF, C
OUT
= 5V, I
OUT
OUT
OUT
= 5V
LOAD
ESR = 13 mΩ
ESR = 13 mΩ
= 5A
10130117
10130119
8
A: V
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 200 mA to 5A Load Pulse
SW
Load Transient Response for Discontinuous Mode
Pin Voltage, 10 V/div.
Discontinuous Mode Switching Waveforms
L = 10 μH, C
L = 10 μH, C
V
IN
Horizontal Time Base: 200 μs/div
Horizontal Time Base: 1 μs//iv
= 20V, V
V
OUT
OUT
IN
= 20V, V
OUT
= 400 μF, C
= 400 μF, C
= 5V, I
OUT
LOAD
= 5V,
OUT
OUT
ESR = 13 mΩ
ESR = 13 mΩ
= 500 mA
10130118
10130120