LT1086_04 Datasheet, PDF (12/16 Pages) Linear Technology – 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V

LT1086 Series
TYPICAL APPLICATIONS
1.2V to 15V Adjustable Regulator
V_IN
+
IN
C1*
10µF
LT1086 OUT
ADJ
R2
5k
R1
121Ω ₊
V_OUT†
C2
100µF
*NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
( ) ^{†VOUT = 1.25V}
1+
R2
R1
LT1086 • TA04
Battery Charger
I_F
LT1086 _OUT ^RS
V_IN IN
ADJ
1.25V
V_OUT
( ) ^{VOUT – 1.25}
1+
R2
R1
I_F =
R2
( ) ^{– RS}
1 + ^R2
R1
R1
LT1086 • TA06
dIF ₌
1
( ) _{( ) dVOUT}
– RS
1+
R2
R1
Regulator with Reference
5V Regulator with Shutdown
V_IN
+
TTL
IN LT1086 OUT
ADJ
10µF
1k
2N3904
1k
121Ω
1%
+
365Ω
1%
5V
100µF
LT1086 • TA05
Adjusting Output Voltage of Fixed Regulators
V_IN > 12V ₊
IN LT1086-5 OUT ₊
5V TO 10V
10µF
GND
100µF
+
10µF*
1k
LT1086 • TA07
*OPTIONAL IMPROVES RIPPLE REJECTION
Protected High Current Lamp Driver
V_IN > 11.5V ₊
IN LT1086-5 OUT ₊
10V
10µF
GND
100µF
5V
LT1029
LT1086 • TA08
TTL OR
CMOS
OUT LT1086
ADJ
IN
15V
12V
1A
10k
LT1086 • TA10
12
V_IN
IN LT1086 OUT
ADJ
+
10µF
RETURN
Remote Sensing
R_P
(MAX DROP 300mV)
+
100µF
25Ω
121Ω
365Ω
V_IN
7
2
6
LM301A
1
3 ^1k
8
4 ^5µF
100pF
+
25Ω
V_OUT
5V
R_L
RETURN
LT1086 • TA09
sn1086 1086ffs