IP137K Просмотр технического описания (PDF) - TT Electronics.
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IP137K Datasheet PDF : 7 Pages
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NEGATIVE ADJUSTABLE
VOLTAGE REGULATOR
APPLICATIONS INFORMATION
High Stability Regulator
The output stability, load regulation, line regulation,
thermal regulation, temperature drift, long term drift,
and noise, can be improved by a factor of 6.6 over
the standard regulator configuration. This assumes a
zener has 20PPM/°C maximum drift and about 10
times lower noise than the regulator.
Multiple Tracking Regulators
In the application shown below, regulator #2 to “N” will
track regulator #1 to within ±24mV initially, and to
±60mV over all load line, and temperature conditions.
If any regulator output is shorted to ground, all other
outputs will drop to -2V. Load regulation of regulators #2
to “N” will be improved by VOUT / 1.25V compared to a
standard, so regulator #1 should be the one which has
the lowest load current.
–V IN
R2*
7V
R3
R1
1.5k
1%
1k
1%
ADJ
VIN
VOUT
IPIP113377
* R2 =
( VOUT )
9.08 x 10 -3
– 908 Ω
SOLID
TANTALUM
1µF
–V OUT
Dual Tracking Supply
IIPP113377
+V IN
VIN
V OUT
ADJ
+V
OUT
R1**
100 Ω
1%
2.2*
µF
D1
1N4002
–V IN
R2
10µF
5k
1%
R4
10µF
5k
1%
ADJ
VIN
V OUT
R3
5k
R5**
100 Ω
1%
2.2*
µF
D2
1N4002
–VOUT
IIPP113377
* Solid Tantalum
** R1 & R5 maybe trimmed slightly to improve tracking
–VIN
2µF
ADJ
VIN
V OUT
REG #1
IIPP113377
1N4002
C3
10µF
R2
R1
120 Ω
C1
1µF
SOLID
TANTALUM
–VOUT1
2µF
VIN
ADJ
VOUT
REG #2
IIPP113377
1N4002
1µF
SOLID
TANTALUM
–VOUT2
2µF
V IN
ADJ
V OUT
REG #N
IIPP113377
1N4002
1µF
SOLID
TANTALUM
–VOUT N
Current Regulator
ADJ
(–)
V IN
V OUT
C1
1µF
SOLID
TANATALUM
I
(+)
IPP11377
RS
1.25 V
I = 65µA +
RS
0.8 Ω ≤ RS ≤ 250Ω
Semelab Limited
Coventry Road, Lutterworth, Leicestershire, LE17 4JB
Telephone +44 (0) 1455 556565 Fax +44 (0) 1455 552612 Email: sales@semelab-tt.com
Document Number 8380
Website: http://www.semelab-tt.com
Issue 1
Page 6 of 7
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