參數(shù)資料
型號(hào): LX1669CDT
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: Current-Mode SMPS Controller
中文描述: 1 A SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO16
封裝: PLASTIC, SOIC-16
文件頁(yè)數(shù): 4/14頁(yè)
文件大?。?/td> 337K
代理商: LX1669CDT
P
R O G R A M M A B L E
D C : D C C
O N T R O L L E R
LX1669
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
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.
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.
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