LM340 Datasheet Text
Order this document by LM340/D
LM340, A Series Three-Terminal Positive Fixed Voltage Regulators
This family of fixed voltage regulators are monolithic integrated circuits capable of driving loads in excess of 1.0 A. These three- terminal regulators employ internal current limiting, thermal shutdown, and safe- area pensation. Devices are available with improved specifications, including a 2% output voltage tolerance, on A- suffix 5.0, 12 and 15 V device types. Although designed primarily as a fixed voltage regulator, these devices can be used with external ponents to obtain adjustable voltages and currents. This series of devices can be used with a series- pass transistor to boost output current capability at the nominal output voltage.
- Output Current in Excess of 1.0 A
THREE- TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
SEMICONDUCTOR TECHNICAL DATA
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- No External ponents Required Output Voltage Offered in 2% and 4% Tolerance- Internal Thermal Overload Protection Internal Short Circuit Current Limiting Output Transistor Safe- Area pensation
T SUFFIX PLASTIC PACKAGE CASE 221A
Pin 1. Input 2. Ground 3. Output
1 2 3
Heatsink surface is connected to Pin 2.
Simplified Application
Input
LM340- XX
Output CO-
- ORDERING INFORMATION
Device LM340T- 5.0 LM340AT- 5.0 LM340T- 6.0 LM340T- 8.0 LM340T- 12 LM340AT- 12 LM340T- 15 LM340AT- 15 LM340T- 18 LM340T- 24 Output Voltage and Tolerance 5.0 V ± 4% 5.0 V ± 2% 6.0 V ± 4% 8.0 V ± 4% 12 V ± 4% 12 V ± 2% 15 V ± 4% 15 V ± 2% 18 V ± 4% 24 V ± 4% TJ = 0° to +125 12 °C Pl i Power Plastic P Operating Temperature Range Package
Cin- 0.33µF
A mon ground is required between the input and the output voltages. The input voltage must remain typically 1.7 V above the output voltage even during the low point on the input ripple...
