78M05

78M05 Features • • • • • Output Current up to 1A Output Voltages of 5V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area (SOA)Protection TO-252 GND Description 1 The 78MXX series of three-terminal 1. Input 2. GND 3. Output package with several fixed output voltages making it useful in a wide range of applications. Internal Block Digram INPUT SERIES PASS ELEMENT 1 SOA PROTECTION CURRENT GENERATOR STARTING CIRCUIT REFERENCE VOLTAGE OUTPUT 3 R1 ERROR AMPLIFIER R2 THERMAL PROTECTION GND 2 www.slkormicro.com 1 78M05 Absolute Maximum Ratings Parameter Symbol Value Unit VI 30 V Thermal Resistance Junction-Case (Note1) TO-220 (Tc = +25°C) RθJC 2.5 °C/W Thermal Resistance Junction-Air (Note1, 2) TO-220 (Ta = +25°C) D-PAK (Ta = +25°C) RθJA 66 92 °C/W Operating Junction Temperature Range TOPR 0 ~ +150 °C Storage Temperature Range TSTG -65 ~ +150 °C Input Voltage (for VO = 5V to 18V) Note: 1. Thermal resistance test board Size: 76.2mm * 114.3mm * 1.6mm(1S0P) JEDEC standard: JESD51-3, JESD51-7 2. Assume no ambient airflow Electrical Characteristics (78M05) (Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=10V, unless otherwise specified, CI = 0.33µF, CO=0.1µF) Parameter Output Voltage Symbol VO Line Regulation (Note3) ∆VO Load Regulation (Note3) ∆VO Quiescent Current Quiescent Current Change Output Voltage Drift IQ ∆IQ ∆V/∆T Conditions Min. Typ. Max. TJ = +25°C 4.8 5 5.2 IO = 5mA to 350mA VI = 7V to 20V 4.75 5 5.25 VI = 7V to 25V - - 100 VI = 8V to 25V - - 50 IO = 5mA to 0.5A, TJ =+25°C - - 100 IO = 5mA to 200mA, TJ =+25 °C - - 50 TJ =+25°C - 4.0 IO = 5mA to 350mA - - 1 IO = 200mA VI = 8V to 25V - - 0.8 IO = 5mA TJ = 0 to +125°C - -0.5 - mV/°C IO = 200mA TJ =+25°C 6.0 Unit V mV mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz - 40 - µV/Vo Ripple Rejection RR f = 120Hz, IO = 300mA VI = 8V to 18V, TJ =+25 °C - 80 - dB Dropout Voltage VD TJ =+25°C, IO = 500mA - 2 - V Short Circuit Current ISC TJ =+25°C, VI = 35V - 300 - mA Peak Current IPK TJ =+25°C - 700 - mA Note: 3. Load and line regulation are specified at constant junction temperature. Change in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used. www.slkormicro.com 2