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Part Number: LM340A

 

 

 

 

Description: This family of fixed voltage regulators are monolithic integrated circuits capable of driving loads in excess of 1.0 A....


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LM340A General Description


This family of fixed voltage regulators are monolithic integrated circuits capable of driving loads in excess of 1.0 A. These threeterminal regulators employ internal current limiting, thermal shutdown, and safearea
compensation. Devices are available with improved specifications, including a 2% output voltage tolerance, on Asuffix 5.0, 12 and 15 V device types. Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents. This series of devices can be used with a seriespass transistor to boost output current capability at the nominal output voltage.

LM340A Maximum Ratings

Rating Symbol Value Unit
Input Voltage(5.0 18 V)
            (24 V)
 VI

35
40

 Vdc
Power Dissipation
Case 221A
TA = +25°C
Thermal Resistance, JunctiontoAmbient
Thermal Resistance, JunctiontoCase Case 936 (D2PAK)
TA = +25°C
Thermal Resistance, JunctiontoAmbient
Thermal Resistance, JunctiontoCase

PDR
JA
JA
PDR
JA
JA
Internally Limited
 15.4
5.0
Internally Limited
200
5.0

   W
°C/W
°C/W
  W
°C/W
°C/W
Storage Junction Temperature Range Tstg

65 to +150

 °C
Operating Junction Temperature TJ

0 to +150

 °C

LM340A Features

Complete specifications at 1A load
Output voltage tolerances of ±2% at Tj = 25°C and ±4% over the temperature range (LM340A)
Line regulation of 0.01% of VOUT/V of ∆VIN at 1A load (LM340A)
Load regulation of 0.3% of VOUT/A (LM340A)
Internal thermal overload protection
Internal short-circuit current limit
Output transistor safe area protection
P+ Product Enhancement tested

LM340A datasheet

LM340A
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