Datasheet

LTC6655
21
6655fd
For more information www.linear.com/LTC6655
Typical applicaTions
Output Voltage Boost
LTC6655-2.5
GND
SHDN
V
IN
V
OUT_S
R
R = 0k to 1k
V
OUT_F
V
OUT
2.5V TO 4.5V
C1
1µF
V
IN
V
OUT
+ 0.5V TO 13.2V
C2
10µF
6655 TA07
V
OUT
= VOLTAGE OPTION + 0.002 • R
THIS EXAMPLE USES 2.5V AS THE
VOLTAGE OPTION
FOR R USE A POTENTIOMETER THAT
CAN HANDLE 2mA, IS LOW NOISE AND
HAS A LOW TEMPERATURE COEFFICIENT
Low Noise Precision Voltage Boost Circuit
LTC6655-2.5
LT1677
GND
SHDN
V
IN
V
OUT_S
V
OUT_F
V
OUT
5V
C1
1µF
V
IN
V
OUT
+ 0.5V TO 13.2V
C2
10µF
R1
10k
R3
5k
V
IN
6655 TA08
V
OUT
= VOLTAGE OPTION • (1 + R1/R2)
THIS EXAMPLE USES 2.5V AS THE
VOLTAGE OPTION
FOR R1, R2 AND R3 USE LT5400-1.
WITH A PRECISION ARRAY THE
MATCHING AND LOW TC WILL HELP
PRESERVE LOW DRIFT. R3 = R1||R2
R3 IS MADE WITH TWO PRALLEL 10k
RESISTORS, AVAILABLE IN THE
LT5400-1
+
–
R
LOAD
R2
10k
+
–