lt3012befe-trpbf Linear Technology Corporation, lt3012befe-trpbf Datasheet - Page 14

• Manufacturer Part Number: lt3012befe-trpbf
• Description: 250ma, 4v To 80v Low Dropout Micropower Linear Regulator
• Manufacturer: Linear Technology Corporation

LT3012
TYPICAL APPLICATIONS
14
(72V TRANSIENT)
(LATER 42V)
OFF
OFF
12V
V
IN
ON
ON
48V
V
+
IN
Constant Brightness for Indicator LED over Wide Input Voltage Range
1µF
1µF
NO PROTECTION
DIODE NEEDED!
RETURN
OFF ON
IN
SHDN
–48V
LT3012
I
–48V CAN VARY FROM –4V TO –80V
GND
LED
LT3012 Automotive Application
LT3012 Telecom Application
= 1.24V/R
OUT
ADJ
1µF
IN
SHDN
SET
LT3012
750k
249k
IN
SHDN
GND
LT3012
GND
NO PROTECTION
DIODE NEEDED!
OUT
ADJ
OUT
ADJ
750k
249k
R
SET
3012 TA06
3.3µF
3.3µF
3.3µF
SYSTEM MONITOR
SECURITY SYSTEM
LOAD: CLOCK,
LOAD:
ETC
ETC
3012 TA05
+
–
BACKUP
BATTERY
3012fc