參數(shù)資料
型號(hào): ISL6440IAZ
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: 300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller
中文描述: 0.4 A DUAL SWITCHING CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO24
封裝: 0.150 INCH, ROHS COMPLIANT, PLASTIC, QSOP-24
文件頁(yè)數(shù): 14/15頁(yè)
文件大小: 346K
代理商: ISL6440IAZ
14
FN9040.2
October 4, 2005
value as shown. The combined out-of-phase current is the
square root of the sum of the square of the individual
reflected currents and is significantly less than the combined
in-phase current.
Use a mix of input bypass capacitors to control the voltage
ripple across the MOSFETs. Use ceramic capacitors for the
high frequency decoupling and bulk capacitors to supply the
RMS current. Small ceramic capacitors can be placed very
close to the upper MOSFET to suppress the voltage induced
in the parasitic circuit impedances.
For board designs that allow through-hole components, the
Sanyo OS-CON series offer low ESR and good
temperature performance. For surface mount designs, solid
tantalum capacitors can be used, but caution must be
exercised with regard to the capacitor surge current rating.
These capacitors must be capable of handling the surge-
current at power-up. The TPS series available from AVX is
surge current tested.
FIGURE 17. INPUT RMS CURRENT vs LOAD
1
2
3
4
5
3.3V AND 5V LOAD CURRENT
I
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
IN PHASE
OUT OF PHASE
5V
3.3V
ISL6440
相關(guān)PDF資料
PDF描述
ISL6440IA 300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller
ISL6440 300kHz Dual, 180° Out-of-Phase, Step-Down PWM Controller(300kHz雙路, 180°異相, 降壓PWM控制器)
ISL6441(中文) 1.4MHz Dual, Out-of-Phase, Step-Down PWM and Single Linear Controller(1.4MHz兩路,異相,降壓型PWM,外加一路線性控制器)
ISL6441 1.4MHz Dual, Out-of-Phase, Step-Down PWM and Single Linear Controller(1.4MHz兩路,異相,降壓型PWM,外加一路線性控制器)
ISL6443(中文) 300kHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller(兩路300kHz,180°異相,降壓PWM外加一路線性控制器)
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