link to page 10 link to page 10 L78Electrical characteristics VI = 19 V, IO = 1 A, TJ = 0 to 125 °C (L7812AC), TJ = -40 to 125 °C (L7812AB), unless otherwise specified. Table 7. Electrical characteristics of L7812ASymbolParameterTest conditionsMin.Typ.Max.Unit VO Output voltage TJ = 25 °C 11.75 12 12.25 V VO Output voltage IO = 5 mA to 1 A, VI = 14.8 to 25 V 11.5 12 12.5 V VO Output voltage IO = 1 A, VI = 25 to 27 V, TJ = 25 °C 11.5 12 12.5 V VI = 14.8 to 30 V, IO = 500 mA, TJ = 25 °C 13 120 mV VI = 16 to 12 V 16 120 mV ∆V (1) O Line regulation VI = 16 to 12 V, TJ = 25 °C 6 60 mV VI = 14.5 to 27 V, TJ = 25 °C 13 120 mV IO = 5 mA to 1 A 25 100 ∆V (1) O Load regulation IO = 5 mA to 1.5 A, TJ = 25 °C 30 100 mV IO = 250 to 750 mA 10 50 TJ = 25 °C 4.4 6 mA Iq Quiescent current 6 mA VI = 15 to 30 V, IO = 500 mA 0.8 mA DIq Quiescent current change VI = 14.8 to 27 V, TJ = 25 °C 0.8 mA IO = 5 mA to 1 A 0.5 mA SVR Supply voltage rejection VI = 15 to 25 V, f = 120 Hz, IO = 500 mA 60 dB Vd Dropout voltage IO = 1 A, TJ = 25 °C 2 V eN Output noise voltage TA = 25 °C, B = 10 Hz to 100 kHz 10 µV/VO RO Output resistance f = 1 kHz 18 mΩ Isc Short circuit current VI = 35 V, TA = 25 °C 0.2 A Iscp Short circuit peak current TJ = 25 °C 2.2 A ∆VO/∆T Output voltage drift -1 mV/°C 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. Note: Minimum load current for regulation is 5 mA. DS0422 - Rev 38page 10/55 Document Outline L78 1 Diagram 2 Pin configuration 3 Maximum ratings 4 Test circuits 5 Electrical characteristics 6 Application information 6.1 Design consideration 7 Typical performance 8 Package information 8.1 TO-220 (dual gauge) package information 8.2 TO-220 (single gauge) package information 8.3 TO-220FP type A package information 8.4 TO-220 (single/dual) packing information 8.5 DPAK package information 8.6 D²PAK (SMD 2L STD-ST) type A package information 8.7 D²PAK (ASE) type B package information 8.8 D²PAK and DPAK packing information 9 Ordering information Revision history Contents List of tables List of figures