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參數(shù)資料
| 型號： | LTC1429CS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Clock-Synchronized Switched Capacitor Regulated Voltage Inverter |
| 中文描述： | SWITCHED CAPACITOR REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | 0.150 INCH, PLASTIC, SO-14 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 275K |
| 代理商： | LTC1429CS |
11
LTC1429
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
APPLICATIO
S I
FOR
ATIO
U
The internal resistor values are the same for the fixed
output versions of the LTC1429 as they are for the adjust-
able parts. The output voltage can be trimmed, if desired,
by connecting external resistance from the COMP pin to
OUT or ground to alter the divider ratio. As in the adjustable
parts, the absolute value of the internal resistors may vary
significantly from unit to unit. As a result, the further the
trim shifts the output voltage, the less accurate the output
voltage will be. If a precise output voltage other than one
W
U
U
of the available fixed voltages is required, it’s better to use
an adjustable LTC1429 and use precision external resis-
tors. The internal reference is trimmed at the factory to
within 3.5% of 1.24V. With 1% external resistors, the
output will be within 5.5% of the nominal value, even
under worst case conditions.
The LTC1429 can be internally configured with nonstand-
ard fixed output voltages. For details, contact the Linear
Technology Marketing Department.
2
3
4
5
10
9
13
8
7
11
ADJ
R
ADJ
SYNC/SD
LTC1429CS
R1
R0
OUT
C1
+
C1
–
C2
+
C2
–
0.1
μ
F
LTC1429 TA06
NC
NC
6
14
0.1
μ
F
0.001
μ
F
0.22
μ
F
3V
≤
V
CC
≤
7V
V
CC
GND
3.3
μ
F
V
= –5V
±
5%
AT 10mA
+
–5V Supply Generator
Minimum Parts Count –4V Generator
1
2
3
4
8
7
6
5
SYNC/SD
REG
OUT
COMP
V
CC
C1
+
LTC1429CS8-4
C1
–
GND
LTC11429 TA07
3.3
μ
F
0.1
μ
F
5V
+
0.1
μ
F
V
OUT
= –4V
TYPICAL APPLICATIO
N
S
3.3V In, –4.5V Out GaAs FET Bias Generator
2
3
4
5
8
13
12
11
10
9
SYNC/SD
REG
OUT
ADJ
R
ADJ
GND
C1
+
C1
–
LTC1429CS
C2
+
C2
–
R1
0.1
μ
F
0.001
μ
F
0.22
μ
F
NC
LTC1429 TA03
3.3
μ
F
–4.5V BIAS
10k
7
6
14
0.1
μ
F
SYNC/SD
3.3V
V
BAT
+
V
CC
R0
GaAs
TRANSMITTER
P-CHANNEL
POWER SWITCH
5V In, –4V Out GaAs FET Bias Generator
1
2
3
4
8
7
6
5
SYNC/SD
REG
OUT
COMP
V
CC
C1
+
LTC1429CS8-4
C2
–
GND
0.001
μ
F
LTC11429 TA04
3.3
μ
F
–4V BIAS
10k
P-CHANNEL
POWER SWITCH
0.1
μ
F
SYNC/SD
5V
V
BAT
+
GaAs
TRANSMITTER
0.1
μ
F
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