LM2576S-ADJ/NOPB National Semiconductor, LM2576S-ADJ/NOPB Datasheet - Page 9

• Manufacturer Part Number: LM2576S-ADJ/NOPB
• Description: IC REG SIMPLE SWITCHER TO-263-5
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2576S-ADJ/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.23 ~ 37 V
• Current - Output: 3A
• Frequency - Switching: 52kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: D²Pak, TO-263 (5 leads + tab)
• Dc To Dc Converter Type: Inverting/Step Down
• Pin Count: 5 +Tab
• Input Voltage: 40V
• Output Voltage: 1.23 to 37V
• Switching Freq: 47 TO 58KHz
• Output Current: 3A
• Efficiency: 77%
• Package Type: TO-263
• Output Type: Adjustable
• Switching Regulator: Yes
• Mounting: Surface Mount
• Input Voltage (min): 4V
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Primary Input Voltage: 40V
• No. Of Outputs: 1
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 3 - 168 Hours
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Compliant
• Other names: *LM2576S-ADJ; *LM2576S-ADJ/NOPB; LM2576S-ADJ

Typical Performance Characteristics
Maximum Power Dissipation
Load Transient Response
(TO-263) (See Note 10)
Feedback Voltage
vs Duty Cycle
01147638
01147624
01147605
(Circuit of Figure 2) (Continued)
9
V
A: Output Pin Voltage, 50V/div
B: Output Pin Current, 2A/div
C: Inductor Current, 2A/div
D: Output Ripple Voltage, 50 mV/div,
AC-Coupled
Horizontal Time Base: 5 µs/div
OUT
= 15V
Feedback Pin Current
Switching Waveforms
01147604
01147606
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