Datasheet LM340, LM340A, LM7805, LM7812, LM7815 (Texas Instruments) - 7

LM340 , LM340A , LM7805 , LM7812, LM7815 www.ti.com
SNOSBT0L – FEBRUARY 2000 – REVISED SEPTEMBER 2016
6.7 LM340 / LM7812 Electrical Characteristics, VO = 12 V, VI = 19 V
0°C ≤ TJ ≤ 125°C unless otherwise specified(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TJ = 25°C, 5 mA ≤ IO ≤ 1 A 11.5 12 12.5 V VO Output voltage PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A 11.4 12.6 V 14.5 V ≤ VIN ≤ 27 V TJ = 25°C 4 120 mV 14.5V ≤ VIN ≤ 30V IO = 500 mA Over temperature 120 mV 15V ≤ VIN ≤ 27V ΔVO Line regulation TJ = 25°C 120 mV 14.6V ≤ VIN ≤ 27V IO ≤ 1 A Over temperature 60 mV 16V ≤ VIN ≤ 22V 5 mA ≤ IO ≤ 1.5 A 12 120 mV TJ = 25°C ΔVO Load regulation 250 mA ≤ IO ≤ 750 mA 60 mV Over temperature, 5 mA ≤ IO ≤ 1 A 120 mV TJ = 25°C 8 mA IQ Quiescent current IO ≤ 1 A Over temperature 8.5 mA 5 mA ≤ IO ≤ 1 A 0.5 mA TJ = 25°C, IO ≤ 1 A 1 mA ΔIQ Quiescent current change 14.8 V ≤ VIN ≤ 27 V Over temperature, IO ≤ 500 mA 1 mA 14.5 V ≤ VIN ≤ 30 V VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 75 μV f = 120 Hz TJ = 25°C, IO ≤ 1 A 55 72 dB Ripple rejection 15 V ≤ VIN ≤ 25 Over temperature, I 55 O ≤ 500 dB V mA, Dropout voltage TJ = 25°C, IO = 1 A 2 V Output resistance f = 1 kHz 18 mΩ RO Short-circuit current TJ = 25°C 1.5 A Peak output current TJ = 25°C 2.4 A Average TC of VOUT Over temperature, IO = 5 mA −1.5 mV/°C VIN Input voltage required to TJ = 25°C, IO ≤ 1 A 14.6 V maintain line regulation (1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately. Copyright © 2000–2016, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 LM340A Electrical Characteristics, VO = 5 V, VI = 10 V 6.6 LM340 / LM7805 Electrical Characteristics, VO = 5 V, VI = 10 V 6.7 LM340 / LM7812 Electrical Characteristics, VO = 12 V, VI = 19 V 6.8 LM340 / LM7815 Electrical Characteristics, VO = 15 V, VI = 23 V 6.9 Typical Characteristics 7 Detailed Description 7.1 Overview 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Output Current 7.3.2 Current Limiting Feature 7.3.3 Thermal Shutdown 7.4 Device Functional Modes 8 Application and Implementation 8.1 Application Information 8.1.1 Shorting the Regulator Input 8.1.2 Raising the Output Voltage Above the Input Voltage 8.1.3 Regulator Floating Ground 8.1.4 Transient Voltages 8.2 Typical Applications 8.2.1 Fixed Output Voltage Regulator 8.2.1.1 Design Requirements 8.2.1.2 Detailed Design Procedure 8.2.1.3 Application Curve 8.3 System Examples 9 Power Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.2 Layout Example 10.3 Heat Sinking DDPAK/TO-263 and SOT-223 Package Parts 11 Device and Documentation Support 11.1 Documentation Support 11.1.1 Related Documentation 11.2 Related Links 11.3 Receiving Notification of Documentation Updates 11.4 Community Resources 11.5 Trademarks 11.6 Electrostatic Discharge Caution 11.7 Glossary 12 Mechanical, Packaging, and Orderable Information Page 1