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KA79MXX
3-Terminal 0.5A Negative Voltage Regulator
Features
• • • • • • No external components required Output current in excess of 0.5A Internal thermal overload Internal short circuit current limiting Output transistor safe area compensation Output voltages of -5V,-6V,-8V, -12V,-15V,-18V,-24V
Description
The KA79MXX series of 3-Terminal medium current negative voltage regulators are monolithic integrated circuits designed as fixed voltage regulators. These regulators employ internal current limiting, thermal shutdown and safe area compensation making them essentially indestructible.
TO-220
1
D-PAK
1
1. GND 2. Input 3. Output
Schematic Diagram
Rev. 1.0.0
©2001 Fairchild Semiconductor Corporation
KA79MXX
Absolute Maximum Ratings
Parameter Input Voltage(for VO = -5V to -18V) (for VO = -24V) Thermal Resistance Junction-Cases Thermal Resistance Junction-Air Operating Temperature Range Storage Temperature Range Symbol VI VI RθJC RθJA TOPR TSTG Value -35 -40 5 65 0 ~ +125 -65 ~ +125 Unit V V °C /W °C /W °C °C
Electrical Characteristics (KA79M05/KA79M05R)
(Refer to test circuit, 0 °C ≤TJ ≤ +125 °C, lO =350mA, VI =-10V,unless otherwise specified, CI =0.33µF,CO=0.1µF) Parameter Output Voltage Symbol VO Conditions TJ= +25 °C IO = 5mA to 350mA VI = -V7 to -25V TJ =+25°C VI= -7V to -25V VI= -8V to -25V Min. -4.8 -4.75 54 Typ. -5 -5 7.0 2.0 30 3.0 -0.2 40 60 1.1 140 650 Max. -5.2 -5.25 50 30 100 6.0 0.4 0.4 mA mV/ °C µV dB V mA mA V Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current
Note:
∆VO ∆VO IQ ∆IQ ∆Vo/∆T VN RR VD ISC IPK
mV mV mA
IO = 5mA to 500mA TJ = +25 °C TJ= +25 °C IO = 5mA to 350mA IO = 200mA VI = -8V to -25V IO = 5mA f = 10Hz, 100KHz TA = +25 °C f = 120Hz VJ= -8Vto -18V TJ =+25 °C, IO = 500mA TJ= +25 °C, VI = -35V TJ= +25 °C
1. 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.
2
KA79MXX
Electrical Characteristics (KA79M06)
(Refer to test circuit, 0 °C ≤TJ ≤ +125 °C, lO =350mA, VI = -11V,unless otherwise specified) Parameter Output Voltage Symbol TJ= +25 °C VO IO = 5mA to 350mA VI = -8.0V to -25V TJ =+25°C TJ= +25 °C TJ= +25 °C IO = 5mA to 350mA VI = -8V to -25V IO = 5mA f = 10Hz to 100KHz,TA = +25 °C f = 120Hz,VI = -9V to -19V IO = 500mA, TJ = +25 °C VI = -35V, TJ = +25 °C TJ= +25 °C VI = -8Vto -25V VI = -9V to -19V IO = 5.0mA to 500mA Conditions Min. - 5.75 - 5.7 54 Typ. - 6.0 - 6.0 7.0 2.0 30 3 0.4 50 60 1.1 140 650 Max. - 6.25 V - 6.3 60 40 120 6 0.4 0.4 mA mV/ °C µV dB V mA mA mV mV mA Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current
Note:
∆VO ∆VO IQ ∆IQ ∆VO/∆T VN RR VD ISC IPK
1. 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.
3
KA79MXX
Electrical Characteristics (KA79M08/KA79M08R)
(Refer to test circuit, 0 °C ≤TJ ≤ +125 °C, lO =350mA, VI = -14V,unless otherwise specified) Parameter Output Voltage Symbol TJ= +25 °C VO IO = 5mA to 350mA VI = -10.5V to -25V TJ =+25°C TJ= +25 °C TJ= +25 °C IO = 5mA to 350mA VI = -8V to -25V IO = 5mA f = 10Hz to 100KHz,TA = +25 °C f = 120Hz,VI = -9V to -19V IO = 500mA, TJ = +25 °C VI = -35V, TJ = +25 °C TJ = +25 °C VI = -10.5V to -25V VI = -11V to -21V IO = 5.0mA to 500mA Conditions Min. - 7.7 - 7.6 54 Typ. - 8.0 - 8.0 7.0 2.0 30 3 -0.6 60 59 1.1 140 650 Max. - 8.3 V - 8.4 80 50 160 6 0.4 0.4 mA mV/ °C µV dB V mA mA mV mV mA Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current
Note:
∆VO ∆VO IQ ∆IQ ∆VO/∆T VN RR VD ISC IPK
1. 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.
4
KA79MXX
Electrical Characteristics (KA79M12)
(Refer to test circuit, 0 °C ≤TJ ≤ +125 °C, lO =350mA, VI = -19V,unless otherwise specified) Parameter Output Voltage Symbol TJ= +25 °C VO IO = 5mA to 350mA VI = -14.5V to -30V TJ =+25°C TJ= +25 °C TJ= +25 °C IO = 5mA to 350mA VI = -14.5V to -30V IO = 5mA f = 10Hz to 100KHz,TA =+25 °C f = 120Hz,VI = -15V to -25V IO = 500mA, TJ = +25 °C VI = -35V, TJ = +25 °C TJ= +25 °C VI = -14.5V to -30V VI = -15V to -25V IO = 5.0mA to 500mA Conditions Min. -11.5 -11.4 54 Typ. -12 -12 8.0 3.0 30 3 -0.8 75 60 1.1 140 650 Max. -12.5 V -12.6 80 50 240 6 0.4 0.4 mA mV/ °C µV dB V mA mA mV mV mA Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Qui.