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National P/N LM2596 - SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator
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3.3V, 5V, 12V, and adjustable output versions
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Adjustable version output voltage range, 1.2V to 37V ±4% max over line and load conditions
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Available in TO-220 and TO-263 packages
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Guaranteed 3A output load current
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Input voltage range up to 40V
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Requires only 4 external components
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Excellent line and load regulation specifications
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150 kHz fixed frequency internal oscillator
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TTL shutdown capability
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Low power standby mode, IQ typically 80 A
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High efficiency
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Uses readily available standard inductors
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Thermal shutdown and current limit protection
Applications
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Simple high-efficiency step-down (buck) regulator
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On-card switching regulators
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Positive to negative converter
Design Tools
Title
Size in Kbytes Date
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Receive via
Email
SimpleSwitcher DC-DC
Converters Design Software
10 Kbytes
12-Jun-
2002
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Application Notes
Title
Size in Kbytes Date
View Online Download Receive via Email
AN-1061: AN-1061 Power
Conversion in Line-Powered
Equipment
142 Kbytes
5-Jan-97
AN-1081: Application Note 1081
A Low Cost, Low Parts-Count
DC/DC Converter With Multiple
Outputs
45 Kbytes
2-Mar-99 View Online
AN-1082: Application Note 1082
Adjust or Synchronize LM2586/88
Switching Frequency
25 Kbytes
4-Feb-98
AN-1118: AN-1118 Simple
Regulator Provides ±12V from 5V
Source
30 Kbytes
31-Aug-01 View Online
AN-1229: Application Note 1229
SIMPLE SWITCHER PCB Layout
Guidelines
229 Kbytes
29-Jul-02 View Online
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