參數(shù)資料
型號: ISL65426IRZA
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: 30V N-Channel PowerTrench MOSFET
中文描述: 6 A DUAL SWITCHING CONTROLLER, 1150 kHz SWITCHING FREQ-MAX, PQCC50
封裝: 5 X 10 MM, ROHS COMPLIANT, PLASTIC, QFN-50
文件頁數(shù): 14/22頁
文件大?。?/td> 741K
代理商: ISL65426IRZA
14
FN6340.2
February 21, 2007
Pin Descriptions
VCC
The bias supply input for the small signal circuitry. Connect
this pin to the highest supply voltage available if two or more
options are available. Locally filter this pin using a quality
0.1
μ
F ceramic capacitor and 5
Ω
resistor (optional).
PVIN1, PVIN2, PVIN3, PVIN4, PVIN5, PVIN6
These pins are the power supply pins for the corresponding
PWM power blocks. Associated power blocks must all tie to
the same power supply. The power supply must fall in the
range of 2.375V to 5.5V.
GND
Signal ground. All small signal components connect to this
ground, which in turn connects to PGND at one point.
PGND
Power ground for the PWM power blocks and thermal relief
for the package. The exposed pad must be connected to
PGND and soldered to the PCB. Connect these pins closely
to the negative terminal of input and output capacitors.
FB1, FB2
Voltage feedback input. Depending on voltage selection pin
settings, connect an optional resistor divider between V
OUT
and GND for selection of a variable output voltage.
LX1, LX2, LX3, LX4, LX5, LX6
Switch node connection to inductor. This pin connects to the
internal synchronous power MOSFET switches. The
average voltage of this node is equal to the regulator output
voltage.
FIGURE 34. V
OUT2
= 3.3V OUTPUT SHORT CIRCUIT RECOVERY
Typical Performance Curves
Circuit of Figure 2. V
IN
= 5V, I
OUT1
= 4A, I
OUT2
= 2A, T
A
= -10°C to +100°C unless otherwise
noted.
Typical values are at T
A
= +25°C.
(Continued)
V
OUT2
1V/DIV
LX2 5V/DIV
IL2 5A/DIV
PG2 5V/DIV
PGND
PGND
PGND
PGND
LX1
LX1
PVIN1
F
50 49 48
E
E
E
I
P
P
1
2
3
4
5
6
7
47 46 45 44
8
9
10
11
12
13
14
15
16
17
43
V
P
V
V
18 19 20
21 22 23 24 25
I
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
P
PVIN2
LX2
PGND
PGND
LX3
PVIN3
VCC
VCC
VCC
PGND
PGND
PGND
PGND
PGND
LX6
LX6
PVIN6
PVIN5
LX5
PGND
PGND
LX4
PVIN4
PGND
PGND
GND
GND
F
V
PGND
P
ISL65426
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