L7905CP ,NEGATIVE VOLTAGE REGULATORSELECTRICAL CHARACTERISTICS OF L7905C (refer to the test circuits, T = 0 to 125°C, V = -10V,J II =50 ..
L7905CP ,NEGATIVE VOLTAGE REGULATORSELECTRICAL CHARACTERISTICS OF L7906C (refer to the test circuits, T = 0 to 125°C, V = -11V,J II =50 ..
L7905CV ,NEGATIVE VOLTAGE REGULATORSELECTRICAL CHARACTERISTICS OF L7952C (refer to the test circuits, T = 0 to 125°C, V = -10V,J II =50 ..
L7905CV. ,NEGATIVE VOLTAGE REGULATORSELECTRICAL CHARACTERISTICS OF L7905C (refer to the test circuits, T = 0 to 125°C, V = -10V,J II =50 ..
L7906CV ,NEGATIVE VOLTAGE REGULATORSELECTRICAL CHARACTERISTICS OF L7952C (refer to the test circuits, T = 0 to 125°C, V = -10V,J II =50 ..
L7908CV ,NEGATIVE VOLTAGE REGULATORSELECTRICAL CHARACTERISTICS OF L7908C (refer to the test circuits, T = 0 to 125°C, V = -14V,J II =50 ..
LC651104F ,Single-Chip 4-Bit Microcomputer For Small-Scale Control-Oriented ApplicationsFeaturesI) CMOS technology for a low-power operation (with instruction-controlled standby function) ..
LC651104N ,Single-Chip 4-Bit Microcomputer For Small-Scale Control-Oriented ApplicationsFeaturesI) CMOS technology for a low-power operation (with instruction-controlled standby function) ..
LC651204N ,4-Bit Single-Chip Microcontrollers for Small-Scale Control Applications
LC6512A ,SINGLE-CHIP 4-BIT MICROCOMPUTER FOR CONTROL-ORIENTED APPLICATIONS(LOW-THRESHOLD INPUT, ON-CHIP FLT DRIVER)Pin AssignmentPin NameOSC1, DSC2 :: Interrupt/Reset: Hold: Input port: Input port.' Input/output co ..
LC651304A ,4-Bit Single-Chip Microcontroller for Small-Scale Control ApplicationsFeatures 1) CMOS technology for a low-power consumption operation (A standby function that can be ..
LC651432N ,Four-Bit CMOS Microcontrollers for Small-Scale Control ApplicationsFeaturesINT pin or serial I/O full/empty vector interrupt (can• Fabricated in a CMOS process for lo ..
L7905CD2T-L7905CP-L7905CV-L7905CV.-L7906CV-L7908CV-L7912CD2T-L7912CP-L7912CV-L7912CV.-L7915CD2T-L7915CP-L7915CT-L7915CV-L7918CV-L7920CV-L7924CV-L7952CV-L7952CV.
NEGATIVE VOLTAGE REGULATORS
1/16February 2003 OUTPUT CURRENT UP TO 1.5A OUTPUT VOLTAGES OF-5; -5.2;-6; -8;-9;
-12; -15; -18; -20; -22; -24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSITION SOA PROTECTION
DESCRIPTIONThe L7900 series of three-terminal negative
regulatorsis available in TO-220, TO-220FP,
TO-3 andD2 PAK packages and several fixed
output voltages, makingit usefulina wide rangeof
applications. These regulators can provide local
on-card regulation, eliminating the distribution
problems associated with single point regulation;
furthermore, having the same voltage option as
the L7800 positive standard series, they are
particularly suited for split power supplies. In
addition, the -5.2Vis also available for ECL
system.If adequate heat sinkingis provided, they
can deliver over 1.5A output current.
Although designed primarily as fixed voltage
regulators, these devices can be used with
external componentsto obtain adjustable voltages
and currents.
L7900
SERIESNEGATIVE VOLTAGE REGULATORS
SCHEMATIC DIAGRAM
L7900 SERIES2/16
ABSOLUTE MAXIMUM RATINGSAbsoluteMaximum Ratingsare those values beyond which damagetothe device may occur. Functional operation under these conditionis
not implied.
THERMAL DATA
CONNECTION DIAGRAM (top view)
L7900 SERIES3/16
ORDERING CODES(*) Availablein Tape& Reel withthe suffix "-TR".
TEST CIRCUIT
ELECTRICAL CHARACTERISTICS OF L7905C (referto the test circuits,TJ=0to 125°C,VI= -10V,O =500 mA,CI =2.2 μF,CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
L7900 SERIES4/16
ELECTRICAL CHARACTERISTICS OF L7952C (referto the test circuits,TJ=0to 125°C,VI= -10V, =500 mA,CI =2.2 μF, CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
ELECTRICAL CHARACTERISTICS OF L7906C (referto the test circuits,TJ=0to 125°C,VI= -11V,O =500 mA,CI =2.2 μF,CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
L7900 SERIES5/16
ELECTRICAL CHARACTERISTICS OF L7908C (referto the test circuits,TJ=0to 125°C,VI= -14V, =500 mA,CI =2.2 μF, CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
ELECTRICAL CHARACTERISTICS OF L7912C (referto the test circuits,TJ=0to 125°C,VI= -19V,O =500 mA,CI =2.2 μF,CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
L7900 SERIES6/16
ELECTRICAL CHARACTERISTICS OF L7915C (referto the test circuits,TJ=0to 125°C,VI= -23V, =500 mA,CI =2.2 μF, CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
ELECTRICAL CHARACTERISTICS OF L7918C (referto the test circuits,TJ=0to 125°C,VI= -27V,O =500 mA,CI =2.2 μF,CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
L7900 SERIES7/16
ELECTRICAL CHARACTERISTICS OF L7920C (referto the test circuits,TJ=0to 125°C,VI= -29V, =500 mA,CI =2.2 μF, CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
ELECTRICAL CHARACTERISTICS OF L7922C (referto the test circuits,TJ=0to 125°C,VI= -31V,O =500 mA,CI =2.2 μF,CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
L7900 SERIES8/16
ELECTRICAL CHARACTERISTICS OF L7924C (referto the test circuits,TJ=0to 125°C,VI= -33V, =500 mA,CI =2.2 μF, CO=1μF unless otherwise specified).
(*) Loadandline regulationare specifiedat constant junction temperature. ChangesinVOdueto heating effects must betakeninto account
separately. Pulse testing withlow duty cycleis used.
APPLICATIONS INFORMATION
Figure1: Fixed Output Regulator
NOTE:To specifyan output voltage, substitute voltage valuefor "XX".
2.Required forstability. Forvalue given, capacitormustbe solid tantalum.If aluminium electrolyticsare used, atleast tentimes value should selected.C1is requiredif regulatoris locatedan appreciable distance from power supply filter.To improve transient response.If large capacitorsare used,a high current diode from inputto output (1N4001or similar) shouldbe intro-
ducedto protectthe device from momentary input short circuit.
