Order this document by LM340/D
LM340, A Series Three-Terminal Positive Fixed Voltage Regulators
This family of fixed vo...
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 compensation. 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 components 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
No External Components Required Output Voltage Offered in 2% and 4% Tolerance* Internal Thermal Overload Protection Internal Short Circuit Current Limiting Output
Transistor Safe–Area Compensation
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 ±...