參數(shù)資料
型號(hào): ISL6445IAZ
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: 1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller
中文描述: 0.4 A DUAL SWITCHING CONTROLLER, 1550 kHz SWITCHING FREQ-MAX, PDSO24
封裝: 0.150 INCH, ROHS COMPLIANT, PLASTIC, QSOP-24
文件頁數(shù): 6/15頁
文件大小: 353K
代理商: ISL6445IAZ
6
FN9230.0
September 9, 2005
Typical Performance Curves
(From ISL6445EVAL1 evaluation board)
FIGURE 1. PWM1 LOAD REGULATION
FIGURE 2. PWM2 LOAD REGULATION
FIGURE 3. REFERENCE VOLTAGE VARIATION OVER
TEMPERATURE
FIGURE 4. SOFT-START WAVEFORMS WITH PGOOD
FIGURE 5. PWM1 WAVEFORMS
FIGURE 6. PWM2 WAVEFORMS
3.3
3.32
3.33
3.35
3.38
3.39
3.4
0
1
2.5
3.5
LOAD CURRENT (A)
P
4.5
0.5
1.5
2
3
4
3.37
3.36
3.34
3.31
3.3
3.32
3.33
3.35
3.38
3.39
3.4
0
1
2.5
3.5
LOAD CURRENT (A)
P
4.5
0.5
1.5
2
3
4
3.37
3.36
3.34
3.31
-40
-20
20
40
80
0.75
0.81
0.85
0.84
TEMPERATURE (°C)
R
0.78
0.83
0.8
0.77
0
60
0.82
0.79
0.76
PGOOD
5V/DIV
V
OUT3
2V/DIV
V
OUT2
2V/DIV
V
OUT1
2V/DIV
V
OUT1
20mV/DIV, AC COUPLED
I
L1
0.5A/DIV, AC COUPLED
PHASE1
10V/DIV
V
OUT2
20mV/DIV, AC COUPLED
I
L2
0.5A/DIV, AC COUPLED
PHASE2
10V/DIV
ISL6445
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