Datasheet

13
LT3027
3027fa
TYPICAL APPLICATIO S
U
OUT1
BYP1
ADJ1
OUT2
BYP2
ADJ2
IN1
SHDN1
SHDN2
LT3027
1µF
V
IN1
3.7V TO 20V
IN2
1µF
V
IN2
2.9V TO 20V
OFF ON
0.01µF
0.01µF
422k
261k
249k
249k
10µF
10µF
3027 TA02a
3.3V
AT 100mA
2.5V
AT 100mA
GND
V
SHDN1/SHDN2
1V/DIV
V
OUT1
1V/DIV
V
OUT2
1V/DIV
2ms/DIV
3027 TA02b
C
BYP
(pF)
10
0.1
STARTUP TIME (ms)
1
10
100
100 1000 10000
3027 TA02c
Noise Bypassing Slows Startup, Allows Outputs to Track
Startup Time
Power Supply Controller Provides Coincident Tracking
OUT1
BYP1
OUT2
BYP2
LT3027
10µF
1µF
10µF243k
3027 TA04
2.5V
3.3V
V
IN
3.3V
1.8V
GND
IN1 IN2
115k
SHDN1
ADJ1
ADJ2
SHDN2
115k
93.1k
121k
255k
243k
255k
FB1
STATUS
SDO
FB2
LTC2923
GND
V
OL
GATE RAMP
RAMPBUF
TRACK2
154k
100k
ON
TRACK1
10nF
Q1