LT1031_15 Datasheet, PDF (8/12 Pages) Linear Technology – Precision 10V Reference

LT1031/LH0070
APPLICATIO S I FOR ATIO
There is nothing magical about foam cups—any
enclosure which blocks air flow from the reference will do.
Smaller enclosures are better since they do not allow the
build-up of internally generated air movement. Naturally,
heat generating components external to the reference
itself should not be included inside the enclosure.
Noise Induced by Air Turbulence
(TO-5 Package)
(TO-5 PACKAGE)
f = 0.01Hz to 10Hz
20µV
FOAM CUP REMOVED
APPLICATIO CIRCUITS
Negative Series Reference
15V
R1
4.7k
R2
4.7k
LT1031
IN
OUT
D1
15V
GND
–15V
Q1
2N2905
–10V
AT 50mA
LT1031 • AC01
Boosted Output Current with Current Limit
V⁺ ≥ 12.8V
D1*
LED
R1
220Ω
8.2Ω
2N2905
IN
LT1031 OUT
+
GND
10V
AT 100mA
2µF
SOLID
TANT
*GLOWS IN CURRENT LIMIT
DO NOT OMIT
LT1031 • AC03
8
02
4
6
8
TIME (MINUTES)
10 12
LT1031 • TA07
Boosted Output Current with No Current Limit
V⁺ ≥ 11.8V
R1
220Ω
2N2905
IN
LT1031 OUT
+
GND
10V
AT 100mA
2µF
SOLID
TANT
LT1031 • AC02
Handling Higher Load Currents
15V _30mA
IN
LT1031 OUT
GND
R1*
169Ω
V_OUT = 10V
R_L
TYPICAL LOAD
CURRENT = 30mA
*SELECT R1 TO DELIVER TYPICAL LOAD CURRENT
LT1031 WILL THEN SOURCE OR SINK AS NECESSARY
TO MAINTAIN PROPER OUTPUT. DO NOT REMOVE LOAD,
AS OUTPUT WILL BE DRIVEN (UNREGULATED) HIGH. LINE
REGULATION IS DEGRADED IN THIS APPLICATION
LT1031 • AC04
1031fb