參數(shù)資料
型號(hào): LX1668CPWT
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: Analog IC
中文描述: 1 A SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO20
封裝: PLASTIC, TSSOP-20
文件頁數(shù): 4/15頁
文件大小: 371K
代理商: LX1668CPWT
P
ROGRAMMABLE
M
ULTIPLE
O
UTPUT
DC:DC C
ONTROLLER
LX1668
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
Copyright 1999
Rev. 1.0 4/99
4
P
R O D U C T I O N
D
A T A
S
H E E T
ELECTRICAL CHARACTERISTICS
Table 1 - Adaptive Transient Voltage Output
(
Output Voltage Setpoint — Typical)
Processor Pins
0 = Low, 1 = High
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1.34V
1.39V
1.44V
1.49V
1.54V
1.59V
1.64V
1.69V
1.74V
1.79V
1.84V
1.89V
1.94V
1.99V
2.04V
2.09V
2.04V
2.14V
2.24V
2.34V
2.44V
2.54V
2.64V
2.74V
2.84V
2.94V
3.04V
3.14V
3.24V
3.34V
3.44V
3.54V
1.30V
1.35V
1.40V
1.45V
1.50V
1.55V
1.60V
1.65V
1.70V
1.75V
1.80V
1.85V
1.90V
1.95V
2.00V
2.05V
2.00V
2.10V
2.20V
2.30V
2.40V
2.50V
2.60V
2.70V
2.80V
2.90V
3.00V
3.10V
3.20V
3.30V
3.40V
3.50V
VID4
VID3
VID2
VID1
VID0
Output Voltage (V
SET
)
0.0A
Nominal Output
* (V
SET
)
* Nominal = DAC setpoint voltage with no adaptive output voltage positioning.
Note:
Adaptive Transient Voltage Output
In order to improve transient response a 40mV offset is built into the voltage comparator. At high currents, the
peak output voltage will be lower than the nominal set point , as shown in Figure 4. The actual output voltage
will be a function of the sense resistor, output current and output ripple.
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