LM340SX-5.0

LM340 / LM78XX系列三端稳压器正 LM340/LM78XX Series 3-Terminal Positive Regulators

DESCRIPON

The LM140/LM340A/LM340-N/LM78XXC monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.0A output current. They are intended as fixed voltage regulators in a wide range of applications including local on-card regulation for elimination of noise and distribution problems associated with

single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.

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 ΔVIN 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