Datasheet

8
LTC1329-10/
LTC1329-50/LTC1329A-50
1329f LT/TP 0297 5K • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 1997
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
[phone]
FAX: [phone]
●
TELEX: 499-3977
●
www.linear-tech.com
Digitally Controlled Power Supply Adjustment
1
2
8
7
D
OUT

D
IN
I
OUT

V
CC


SHDN
CLK
LTC1329-50
GND
CS
47µF
1329 TA03
V
OUT

5V (150mA) TO
30V (14mA)
V
IN

3V
510k
3
4
6
5
100µF
LT1107
1N5817
L1*
33µH
*COILTRONICS CTX33-4
I
LIM
V
IN
FB
SW2
GND
SW1
47Ω
22k
MPU
(e.g., 8051)
P1.2
P1.1
P1.0
+
+
PART NUMBER DESCRIPTION COMMENTS
LTC1451 12-Bit Micropower Serial Input V
OUT
DAC Higher Resolution, 8-Pin SO
LTC1452 12-Bit Multiplying Serial Input V
OUT
DAC Higher Resolution, 8-Pin SO
LTC8043 12-Bit Multiplying Serial Input I
OUT
DAC Higher Resolution, 8-Pin SO
RELATED PARTS
U
PACKAGE
D
E
SC
R
I
PTI
O
Dimensions in inches (millimeters) unless otherwise noted.
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
Pulse Mode: Increment-Only
(1-Wire Control by CLK) with Voltage Output
1
2
SHDN
CLK
V
BIAS
R
FB
100k
8
7
D
OUT

D
IN
I
OUT

V
CC


SHDN
CLK
LTC1329
V
CC
V
EE
6
7
2
3
4
GND
CS
1329 TA02
V
OUT
V
OUT
= (–I
OUT
)(R
FB
+ V
BIAS
)
V
EE
< V
BIAS
+ V
OUT


3
4
6
5
–
+
LT1006
0.1µF
FOR V
CC
= 3.3V, –15V ≤ V
BIAS
≤ 2V
FOR V
CC
= 5V, –15V ≤ V
BIAS
≤ 2.5V
TYPICAL APPLICATIONS
U
1
2
3
4
0.150 – 0.157**
(3.810 – 3.988)
8
7
6
5
0.189 – 0.197*
(4.801 – 5.004)
0.228 – 0.244
(5.791 – 6.197)
0.016 – 0.050
0.406 – 1.270
0.010 – 0.020
(0.254 – 0.508)
× 45°
0°– 8° TYP
0.008 – 0.010
(0.203 – 0.254)
SO8 0996
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
TYP
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH 
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD 
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE


*

**