3-Terminal 0.5A Positive oltage Regulator www.fairchildsemi.com Features Output Current up to 0.5A Output oltages of 5, 6, 8, 1, 15, 18, 4 Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area (SOA)Protection Description The MC78MXX/LM78MXX series of three-terminal positive regulators are available in the TO-0/D-PAK package with several fixed output voltages making it useful in a wide range of applications. TO-0 GND 1 D-PAK GND 1 1. Input. GND 3. Output Internal Block Digram INPUT 1 SERIES PASS ELEMENT OUTPUT 3 CUENT GENERATOR SOA PROTECTION R1 STARTING CIRCUIT REFERENCE LTAGE EOR AMPLIFIER THERMAL PROTECTION R GND Rev. 1.0.6 009 Fairchild Semiconductor Corporation
Absolute Maximum Ratings Parameter Symbol alue Unit Input oltage (for = 5 to 18) (for = 4) Thermal Resistance Junction-Case (Note1) TO-0 (Tc = +5 C) Thermal Resistance Junction-Air (Note1, ) TO-0 (Ta = +5 C) D-PAK (Ta = +5 C) 1. Thermal resistance test board Size: 76.mm * 114.3mm * 1.6mm(1S0P) JEDEC standard: JESD51-3, JESD51-7. Assume no ambient airflow Electrical Characteristics (MC78M05/LM78M05) (Refer to the test circuits, 0 < TJ < +15 C, IO=350mA, I=10, unless otherwise specified, CI = 0.33μF, CO=0.1μF) I I 35 40 RθJC.5 C/W RθJA 66 9 Operating Junction Temperature Range TOPR 0 ~ +150 C Storage Temperature Range TSTG -65 ~ +150 C Parameter Symbol Conditions Min. Typ. Max. Unit Output oltage Line Regulation (Note3) Δ TJ = +5 C 4.8 5 5. IO = 5mA to 350mA I = 7 to 0 TJ =+5 C 4.75 5 5.5 I = 7 to 5 - - 100 I = 8 to 5 - - 50 IO = 5mA to 0.5A, TJ =+5 C - - 100 Load Regulation (Note3) Δ IO = 5mA to 00mA, TJ =+5 C - - 50 Quiescent Current IQ TJ =+5 C - 4.0 6.0 ma Quiescent Current Change ΔIQ IO = 5mA to 350mA - - 0.5 I = 8 to 5 - - 0.8 Output oltage Drift Δ/ΔT IO = 5mA TJ = 0 to +15 C - -0.5 - / C Output Noise oltage N f = 10Hz to 100kHz - 40 - μ/o Ripple Rejection f = 10Hz, IO = 300mA I = 8 to 18, TJ =+5 C - 80 - db Dropout oltage D TJ =+5 C, IO = 500mA - - Short Circuit Current ISC TJ =+5 C, I = 35-300 - ma Peak Current IPK TJ =+5 C - 700 - ma C/W ma 3. Load and line regulation are specified at constant junction temperature. Change in o due to heating effects must be taken into account separately. Pulse testing with low duty is used.
Electrical Characteristics (MC78M06) (Continued) (Refer to the test circuits, 0 < TJ < +15 C, IO=350mA, I =11, unless otherwise specified, CI=0.33μF, CO=0.1μF) Parameter Symbol Conditions Min. Typ. Max. Unit Output oltage Line Regulation (Note1) Δ TJ = +5 C 5.75 6 6.5 IO = 5mA to 350mA I = 8 to 1 TJ = +5 C 5.7 6 6.3 I = 8 to 5 - - 100 I = 9 to 5 - - 50 IO = 5mA to 0.5A, TJ = +5 C - - 10 Load Regulation (Note1) Δ IO = 5mA to 00mA, TJ = +5 C - - 60 Quiescent Current IQ TJ = +5 C - 4.0 6.0 ma Quiescent Current Change ΔIQ IO = 5mA to 350mA - - 0.5 I = 9 to 5 - - 0.8 Output oltage Drift Δ/ΔT IO = 5mA TJ = 0 to +15 C - -0.5 - / C Output Noise oltage N f = 10Hz to 100kHz - 45 - μ/o Ripple Rejection f = 10Hz, IO = 300mA I = 9 to 19, TJ =+5 C - 80 - db Dropout oltage D TJ =+5 C, IO = 500mA - - Short Circuit Current ISC TJ = +5 C, I= 35-300 - ma Peak Current IPK TJ =+5 C - 700 - ma ma 1. Load and line regulation are specified at constant junction temperature. Change in o due to heating effects must be taken into account separately. Pulse testing with low duty is used. 3
Electrical Characteristics (MC78M08) (Continued) (Refer to the test circuits, 0 < TJ < +15 C, IO=350mA, I=14, unless otherwise specified, CI = 0.33μF, CO=0.1μF) Parameter Symbol Conditions Min. Typ. Max. Unit Output oltage Line Regulation (Note1) Δ TJ =+5 C 7.7 8 8.3 IO = 5mA to 350mA I = 10.5 to 3 TJ =+5 C 7.6 8 8.4 I = 10.5 to 5 - - 100 I = 11 to 5 - - 50 IO = 5mA to 0.5A, TJ =+5 C - - 160 Load Regulation (Note1) Δ IO = 5mA to 00mA, TJ =+5 C - - 80 Quiescent Current IQ TJ = +5 C - 4.0 6.0 ma Quiescent Current Change ΔIQ IO = 5mA to 350mA - - 0.5 I = 10.5 to 5 - - 0.8 Output oltage Drift IO = 5mA TJ = 0 to +15 C - 0.5 - / C Output Noise oltage N f = 10Hz to 100kHz - 5 - μ/o Ripple Rejection f = 10Hz, IO = 300mA I = 11.5 to 1.5, TJ =+5 C - 80 - db Dropout oltage D TJ = +5 C, IO = 500mA - - Short Circuit Current ISC TJ = +5 C, I = 35-300 - ma Peak Current IPK TJ = +5 C - 700 - ma ma 1. Load and line regulation are specified at constant junction temperature. Change in due to heating effects must be taken into account separately. Pulse testing with low duty is used. 4
Electrical Characteristics (MC78M1) (Continued) (Refer to the test circuits, 0 < TJ < +15 C, IO=350mA, I=19, unless otherwise specified, CI =0.33μF, CO=0.1μF) Parameter Symbol Conditions Min. Typ. Max. Unit Output oltage Line Regulation (Note1) Δ TJ = +5 C 11.5 1 1.5 IO = 5mA to 350mA I = 14.5 to 7 TJ = +5 C 11.4 1 1.6 I = 14.5 to 30 - - 100 I = 16 to 30 - - 50 IO = 5mA to 0.5A, TJ = +5 C - - 40 Load Regulation (Note1) Δ IO = 5mA to 00mA, TJ = +5 C - - 10 Quiescent Current IQ TJ =+5 C - 4.1 6.0 ma Quiescent Current Change ΔIQ IO = 5mA to 350mA - - 0.5 I = 14.5 to 30 - - 0.8 Output oltage Drift Δ/ΔT IO = 5mA TJ = 0 to +15 C - -0.5 - / C Output Noise oltage N f = 10Hz to 100kHz - 75 - μ/o Ripple Rejection f = 10Hz, IO = 300mA I = 15 to 5, TJ =+5 C - 80 - db Dropout oltage D TJ =+5 C, IO = 500mA - - Short Circuit Current ISC TJ = +5 C, I = 35-300 - ma Peak Current IPK TJ = +5 C - 700 - ma ma 1. Load and line regulation are specified at constant junction temperature. Change in o due to heating effects must be taken into account separately. Pulse testing with low duty is used. 5
Electrical Characteristics (MC78M15) (Continued) (Refer to the test circuits, 0 < TJ < +15 C, IO=350mA, I=3, unless otherwise specified, CI =0.33μF, CO=0.1μF) Parameter Symbol Conditions Min. Typ. Max. Unit Output oltage Line Regulation (Note1) Δ TJ = +5 C 14.4 15 15.6 IO = 5mA to 350mA I = 17.5 to 30 TJ =+5 C 14.5 15 15.75 I = 17.5 to 30 - - 100 I = 0 to 30 - - 50 IO = 5mA to 0.5A, TJ =+5 C - - 300 Load Regulation (Note1) Δ IO = 5mA to 00mA, TJ =+5 C - - 150 Quiescent Current IQ TJ = +5 C - 4.1 6.0 ma Quiescent Current Change ΔIQ IO = 5mA to 350mA - - 0.5 I = 17.5 to 30 - - 0.8 Output oltage Drift Δ/ΔT IO = 5mA TJ = 0 to +15 C - -1 - / C Output Noise oltage N f = 10Hz to 100kHz - 100 - μ/o Ripple Rejection f = 10Hz, IO = 300mA I = 18.5 to 8.5, TJ =+5 C - 70 - db Dropout oltage D TJ =+5 C, IO = 500mA - - Short Circuit Current ISC TJ = +5 C, I = 35-300 - ma Peak Current IPK TJ = +5 C - 700 - ma ma 1. Load and line regulation are specified at constant junction temperature. Change in due to heating effects must be taken into account separately. Pulse testing with low duty is used. 6
Electrical Characteristics (MC78M18) (Continued) (Refer to the test circuits, 0 < TJ < +15 C, IO=350mA, I=6, unless otherwise specified, CI =0.33μF, CO=0.1μF) Parameter Symbol Conditions Min. Typ. Max. Unit Output oltage Line Regulation (Note1) Δ TJ = +5 C 17.3 18 18.7 IO = 5mA to 350mA I = 0.5 to 33 TJ = +5 C 17.1 18 18.9 I = 1 to 33 - - 100 I = 4 to 33 - - 50 IO = 5mA to 0.5A, TJ = +5 C - - 360 Load Regulation (Note1) ΔΟ IO = 5mA to 00mA, TJ = +5 C - - 180 Quiescent Current IQ TJ = +5 C - 4. 6.0 ma IO = 5mA to 350mA - - 0.5 Quiescent Current Change ΔIQ ma - - 0.8 I = 1 to 33 Output oltage Drift Δ/ΔT IO = 5mATJ = 0 to 15 C - -1.1 - / C Output Noise oltage N f = 10Hz to 100kHz - 100 - μ/o Ripple Rejection f = 10Hz, IO= 300mA, I = to 3 TJ =+5 C - 70 - db Dropout oltage D TJ = +5 C, IO = 500mA - - Short Circuit Current ISC TJ = +5 C, I = 35-300 - ma Peak Current IPK TJ = +5 C - 700 - ma 1. Load and line regulation are specified at constant junction temperature. Change in due to heating effects must be taken into account separately. Pulse testing with low duty is used. 7
Electrical Characteristics (MC78M4) (Continued) (Refer to the test circuits, 0 < TJ < +15 C, IO=350mA, I=33, unless otherwise specified, CI =0.33μF, CO=0.1μF) Parameter Symbol Conditions Min. Typ. Max. Unit Output oltage Line Regulation (Note1) Δ TJ =+5 C 3 4 5 IO = 5mA to 350mA I = 7 to 38 TJ =+5 C.8 4 5. I = 7 to 38 - - 100 I = 8 to 38 - - 50 IO = 5mA to 0.5A, TJ =+5 C - - 480 Load Regulation (Note1) Δ IO = 5mA to 00mA, TJ =+5 C - - 40 Quiescent Current IQ TJ = +5 C - 4. 6.0 ma Quiescent Current Change ΔIQ IO = 5mA to 350mA - - 0.5 I = 7 to 38 - - 0.8 Output oltage Drift Δ/ΔT IO = 5mA TJ = 0 to +15 C - -1. - / C Output Noise oltage N f = 10Hz to 100kHz - 170 - μ/o Ripple Rejection f = 10Hz, IO = 300mA I = 8 to 38, TJ =+5 C - 70 - db Dropout oltage D TJ = +5 C, IO = 500mA - - Short Circuit Current ISC TJ = +5 C, I = 35-300 - ma Peak Current IPK TJ = +5 C - 700 - ma ma 1. Load and line regulation are specified at constant junction temperature. Change in due to heating effects must be taken into account separately. Pulse testing with low duty is used. 8
Typical Applications I 1 MC78MXX 3 LM78MXX CI 0.3μF CO 0.1μF Figure 1. Fixed Output Regulator I 1 MC78MXX 3 LM78MXX CI 0.33μF IO CO 0.1μF XX IO xx IO = R1 +IO R1 Figure. Constant Current Regulator Notes: 1. To specify an output voltage, substitute voltage value for "XX". Although no output capacitor is needed for stability, it does improve transient response. 3. CI is required if regulator is located an appreciable distance from power Supply filter I 1 MC78MXX 3 LM78MXX CI 0.33μF IO XX CO 0.1μF R1 IR1 5IO = XX (1+R/R1) +IOR R Figure 3. Circuit for Increasing Output oltage 9
I 1 MC78M05 3 LM78M05 CI 0.33μF 6 7 4 LM741 3 CO 10kΩ 0.1μF Figure 4. Adjustable Output Regulator (7 to 30) 13 < I < 5 I -7 < -I < 17 C1 0.33μF 1 MC78M05 3 LM78M05 XX R4 910Ω R5 9.1kΩ 6 7 _ C 0.1μF LM741 + 3 R3 R4 = xx 10kΩ 4 R1 R1 Figure 5. 0.5 to 10 Regulator 10
Mechanical Dimensions Package Dimensions in millimeters TO-0 [ SINGLE GAUGE ] 11
Mechanical Dimensions (Continued) Package Dimensions in millimeters D-PAK 6.60 ±0.0 5.34 ±0.30 (0.50) (4.34) (0.50) 0.70 ±0.0.30 ±0.10 0.50 ±0.10 0.60 ±0.0 0.80 ±0.0 MAX0.96.30TYP [.30±0.0].70 ±0.0 9.50 ±0.30 6.10 ±0.0 0.76 ±0.10.30TYP [.30±0.0] 6.10 ±0.0.70 ±0.0 9.50 ±0.30 0.89 ±0.10 0.91 ±0.10 6.60 ±0.0 (5.34) (5.04) (1.50) (XR0.5) (0.70) MIN0.55 0.50 ±0.10 1.0 ±0.0.30 ±0.0 (0.10) (3.05) (0.90) (1.00) 0.76 ±0.10 1
Ordering Information Product Number Package Operating Temperature LM78M05CT TO-0 0 ~ +15 C Product Number Package Operating Temperature MC78M05CT MC78M06CT MC78M08CT MC78M1CT TO-0 MC78M15CT MC78M18CT MC78M4CT MC78M05CDT 0 ~ +15 C MC78M06CDT MC78M08CDT D-PAK MC78M1CDT 13
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