LM350
Three-terminal 3 A adjustable voltage regulators
Features
■ Guaranteed 3 A output current
■ Adjustable output down to 1.2 V
■ Line regulation typically 0.005 %/V
■Load regulation typically 0.1 %
■Guaranteed thermal regulation
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Current limit constant with temperature |
TO-3 |
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Standard 3-lead transistor package |
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Table 1. |
Device summary |
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Order codes |
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TO-3 |
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Temperature range |
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LM350K |
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0 to 125 °C |
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February 2008 |
Rev 2 |
1/14 |
www.st.com
Contents |
LM350 |
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Contents
1 |
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. 3 |
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2 |
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. 4 |
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3 |
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5 |
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4 |
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6 |
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5 |
Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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6 |
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
8 |
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6.1 |
External capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
8 |
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6.2 |
Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
9 |
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6.3 |
Protection diodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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7 |
Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
10 |
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8 |
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
11 |
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9 |
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
13 |
2/14
LM350 |
Diagram |
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3/14
Pin configuration |
LM350 |
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4/14
LM350 |
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Maximum ratings |
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3 |
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Maximum ratings |
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Table 2. |
Absolute maximum ratings |
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Symbol |
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Parameter |
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Value |
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Unit |
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PD |
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Power dissipation |
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Internally limited |
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VI - VO |
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Input-output voltage differential |
35 |
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V |
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TSTG |
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Storage temperature range |
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-65 to 150 |
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°C |
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TLEAD |
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lead temperature (Soldering, 10 seconds) |
300 |
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°C |
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TOP |
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Operating junction temperature range |
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0 to 125 |
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°C |
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Note: |
Absolute maximum ratings are those values beyond which damage to the device may occur. |
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Functional operation under these condition is not implied |
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Table 3. |
Thermal data |
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Symbol |
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Parameter |
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Value |
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Unit |
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RthJC |
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Thermal resistance junction-case |
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1.5 |
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°C/W |
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RthJA |
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Thermal resistance junction-ambient |
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35 |
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°C/W |
5/14