LM2596S-ADJ/NOPB National Semiconductor, LM2596S-ADJ/NOPB Datasheet - Page 11

• Manufacturer Part Number: LM2596S-ADJ/NOPB
• Description: IC REG SIMPLE SWITCHER TO-263-5
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2596S-ADJ/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.2 ~ 37 V
• Current - Output: 3A
• Frequency - Switching: 150kHz
• Voltage - Input: 4.5 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: D²Pak, TO-263 (5 leads + tab)
• Current, Input Bias: 10 nA
• Current, Output: 3 A
• Current, Supply: 5 mA
• Frequency, Oscillator: 150 kHz
• Package Type: TO-263
• Regulator Type: Buck, Switching
• Resistance, Thermal, Junction To Case: 2 °C/W
• Temperature, Operating, Range: -40 to +125 °C
• Voltage, Input: 4.5 to 40 V
• Voltage, Output: 1.2 to 37 V
• Primary Input Voltage: 40V
• No. Of Outputs: 1
• Output Voltage: 37V
• Output Current: 3A
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 3 - 168 Hours
• Filter Terminals: SMD
• Rohs Compliant: Yes
• For Use With: 551011367-041 - BOARD WEBENCH BUILD IT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: RoHS Compliant part
• Other names: *LM2596S-ADJ; *LM2596S-ADJ/NOPB; LM2596S-ADJ

Typical Performance Characteristics
A: Switch Voltage, 10 V/divB: Switch Current, 5 A/divC: Output Rectifier Current, 5 A/divD: Output Ripple Voltage, 100 mV/div
AC-Coupled
Horizontal: 2 μs/div
Typical Flyback Regulator
Applications
Figures 7, 8, 9, 11, 12 show six typical flyback applications,
varying from single output to triple output. Each drawing con-
tains the part number(s) and manufacturer(s) for every com-
FIGURE 6. V
FIGURE 5. Switching Waveforms
OUT
Load Current Step Response
11
ponent except the transformer. For the transformer part
numbers and manufacturers names, see the table in
13. For applications with different output voltages—requiring
the LM2587-ADJ—or different output configurations that do
not match the standard configurations, refer to the Switchers
Made Simple software.
1231611
1231612
www.national.com
Figure