|
Details, datasheet, quote on part number:L4940-12
| |
Datasheet text preview:
L4940 SERIES
VERY LOW DROP 1.5 A REGULATORS
PRECISE 5 V, 8.5 V, 10 V, 12 V OUTPUTS LOW DROPOUT VOLTAGE (500 mV typ at 1.5A) VERY LOW QUIESCENT CURRENT THERMAL SHOUTDOWN SHORT CIRCUIT PROTECTION REVERSE POLARITY PR OTECTION DESCRIPTION The L4940 series of three terminal positive regulators is available in TO-220 package and with several fixed output voltages, making it useful in a wide range o f industrial and consumer ap plications. Thanks to its very low input/out put voltage drop, these devices are particularly suitable for battery powered equipments , reducing consumption and prolonging battery life. Each type employs internal current limiting, antisaturation circuit, thermal shutdown and safe area protection.
TO-220
APPLICATION CIRCUIT
February 1993
1/12
L4940 Series
PIN CONNECTION AND ORDER CODES
ORDERI NG NUMBERS L4940V5 L4940V85 L4940V10 L4940V12 OUTPUT VOLTAGE 5V 8.5V 10V 12V
ABSOLUTE MAXIMUM RATING
Symbol VI VIR Forward Input Voltage Reverse Input Voltage VO = 5 V VO = 8.5 V VO = 10 V VO = 12 V IO Pto t Tj, Tstg Output Current Power Dissipation Junction and Storage Temperature RO = 100 RO = 180 RO = 200 RO = 240 Internally Limited Internally Limited -40 to 150 °C Description Values 30 -15 Unit V V
THERMAL DATA
Symbol R th-j-case R th-j-amb Description Thermal Resistance Junction-case Thermal Resistance Junction-ambient Max Max Value 3 50 Unit °C/W °C/W
TEST CIRCUITS Figure 1. - DC Parameters.
2/12
L4940 Series
TEST CIRCUITS: (continued) Figure 2. - Load Regulation
Figure 3. - Ripple Rejection
3/12
|
|
