LF18ABDT

® LF00AB/C SERIES VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT s s s s s s s s s VERY LOW DROPOUT VOLTAGE (0.45V) VERY LOW QUIESCENT CURRENT (TYP. 50 µA IN OFF MODE, 500µA IN ON MODE) OUTPUT CURRENT UP TO 500 mA LOGIC-CONTROLLED ELECTRONIC SHUTDOWN OUTPUT VOLTAGES OF 1.25; 1.5; 1.8; 2.5; 2.7; 3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 8.5; 9; 12V INTERNAL CURRENT AND THERMAL LIMIT ONLY 2.2µF FOR STABILITY AVAILABLEIN ± 1% (AB) OR ± 2% (C) SELECTION AT 25 oC SUPPLY VOLTAGE REJECTION: 80 db (TYP.) TEMPERATURE RANGE: -40 TO 125 oC PENTAWATT TO-220 ISOWATT220 s DESCRIPTION The LF00 series are very Low Drop regulators available in PENTAWATT, TO-220, ISOWATT220, DPAK and PPAK package and in a wide range of output voltages. The very Low Drop voltage (0.45V) and the very low quiescent current make them particularly suitable for Low Noise, Low Power applications and specially in battery powered systems. SCHEMATIC DIAGRAM PPAK DPAK In the 5 pins configuration (PENTAWATT and PPAK) a Shutdown Logic Control function is available (pin 2, TTL compatible). This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. In the three terminal configuration the device has the same electrical performance, but is fixed in July 1999 1/32 LF00AB/C ABSOLUTE MAXIMUM RATINGS Symbol Vi Io P tot T st g T op DC Input Voltage Output Current Power Dissipation Storage Temperature Range Operating Junction Temperature Range Parameter Value -0.5 to 40 (*) Internally limited Internally limited - 40 to 150 - 40 to 125 o o Unit V C C (*) For 18 < VIN < 40 the regulator is in shut-down THERMAL DATA Symbol Parameter PENTAWATT 3 50 TO-220 3 50 ISOWATT 220 DPAK/PPAK 4 60 8 100 Unit o o R thj- ca se Thermal Resistance Junction-case R thj- amb Thermal Resistance Junction-ambient C/W C/W CONNECTION DIAGRAM (top view) PENTAWATT TO-220 ISOWATT220 PPAK DPAK 2/32 LF00AB/C ORDERING NUMBERS Type LF12C (*) LF12AB (*) LF15C (*) LF15AB (*) LF18C LF18AB LF25C LF25AB LF27C LF27AB LF30C LF30AB LF33C LF33AB LF35C LF35AB LF40C LF40AB LF45C (*) LF45AB (*) LF47C LF47AB LF50C LF50AB LF52C LF52AB LF55C LF55AB LF60C LF60AB LF80C LF80AB LF85C LF85AB LF90C LF90AB LF120C LF120AB PENTAWATT LF12CV5V LF12ABV5V LF15CV5V LF15ABV5V LF18C5V LF18AB5V LF25CV5V LF25ABV5V LF27CV5V LF27ABV5V LF30CV5V LF30ABV5V LF33CV5V LF33ABV5V LF35CV5V LF35ABV5V LF40CV5V LF40ABV5V LF45CV5V LF45ABV5V LF47CV5V LF47ABV5V LF50CV5V LF50ABV5V LF52CV5V LF52ABV5V LF55CV5V LF55ABV5V LF60CV5V LF60ABV5V LF80CV5V LF80ABV5V LF85CV5V LF85ABV5V LF90CV5V LF90ABV5V LF120CV5V LF120ABV5V TO-220 LF12CV LF12ABV LF15CV LF15ABV LF18CV LF18ABV LF25CV LF25ABV LF27CV LF27ABV LF30CV LF30ABV LF33CV LF33ABV LF35CV LF35ABV LF40CV LF40ABV LF45CV LF45ABV LF47CV LF47ABV LF50CV LF50ABV LF52CV LF52ABV LF55CV LF55ABV LF60CV LF60ABV LF80CV LF80ABV LF85CV LF85ABV LF90CV LF90ABV LF120CV LF120ABV ISOWATT 220 LF12CP LF12ABP LF15CP LF15ABP LF18CP LF18ABP LF25CP LF25ABP LF27CP LF27ABP LF30CP LF30ABP LF33CP LF33ABP LF35CP LF35ABP LF40CP LF40ABP LF45CP LF45ABP LF47CP LF47ABP LF50CP LF50ABP LF52CP LF52ABP LF55CP LF55ABP LF60CP LF60ABP LF80CP LF80ABP LF85CP LF85ABP LF90CP LF90ABP LF120CP LF120ABP DPAK LF12CDT LF12ABDT LF15CDT LF15ABDT LF18CDT LF18ABDT LF25CDT LF25ABDT LF27CDT LF27ABDT LF30CDT LF30ABDT LF33CDT LF33ABDT LF35CDT LF35ABDT LF40CDT LF40ABDT LF45CDT LF45ABDT LF47CDT LF47ABDT LF50CDT LF50ABDT LF52CDT LF52ABDT LF55CDT LF55ABDT LF60CDT LF60ABDT LF80CDT LF80ABDT LF85CDT LF85ABDT LF90CDT LF90ABDT LF120CDT LF120ABDT PPAK LF12CPT LF12ABPT LF15CPT LF15ABPT LF18CPT LF18ABPT LF25CPT LF25ABPT LF27CPT LF27ABPT LF30CPT LF30ABPT LF33CPT LF33ABPT LF35CPT LF35ABPT LF40CPT LF40ABPT LF45CPT LF45ABPT LF47CPT LF47ABPT LF50CPT LF50ABPT LF52CPT LF52ABPT LF55CPT LF55ABPT LF60CPT LF60ABPT LF80CPT LF80ABPT LF85CPT LF85ABPT LF90CPT LF90ABPT LF120CPT LF120ABPT Output Voltage 1.25 V 1.25 V 1.5 V 1.5 V 1.8V 1.8V 2.5 V 2.5 V 2.7 V 2.7 V 3V 3V 3.3 V 3.3 V 3.5 V 3.5 V 4V 4V 4.5 V 4.5 V 4.75 V 4.75 V 5V 5V 5.2 V 5.2 V 5.5 V 5.5 V 6V 6V 8V 8V 8.5V 8.5V 9V 9V 12 V 12 V TEST CIRCUITS 3/32 LF00AB/C ELECTRICAL CHARACTERISTICS FOR LF12AB (refer to the test circuits, Tj = 25 oC, Ci = 0.1 µF, Co = 2.2 µF unless otherwise specified) Symbol Vo Vi I o ut ∆V o ∆V o Id Parameter Output Voltage Operating Input Voltage Output Current Limit Line Regulation Load Regulation Quiescent Current Vi = 2.5 to 16 V, Io = 5 mA V i = 2.8 V I o = 5 to 500 mA ON MODE Vi = 2.5 to 16 V Io = 0 mA Vi = 2.6 to 16 V Io = 500 mA OFF MODE Vi = 6 V SVR Supply Voltage Rejection Io = 5 mA Vi = 3.5 V ± 1V f = 120 Hz f = 1 KHz f = 10 KHz B = 10 Hz to 100 KHz Io = 200 mA -40 < Ta < 125 C -40 < Ta < 125 C Vi = 6 V, Vc = 6 V ESR = 0.1 to 10 Ω Io = 0 to 500 mA 2 o o Test Conditions Io = 50 mA, Vi = 3.3 V Io = 50 mA, Vi = 3.3 V -25