ISL65426EVAL1Z Intersil, ISL65426EVAL1Z Datasheet - Page 14

• Manufacturer Part Number: ISL65426EVAL1Z
• Description: ISL65426 EVAL BOARD 1 - RoHS COMPLIANT - QFN
• Manufacturer: Intersil

Typical Performance Curves
PGND
PGND
PGND
PGND
PGND
PGND
PVIN2
PVIN3
PGND
PVIN1
VCC
VCC
VCC
LX1
LX2
LX3
LX1
10
11
12
13
14
15
16
17
8
9
1
2
3
4
5
6
7
18 19 20 21 22 23 24 25
50 49 48 47 46 45 44
PGND
14
FIGURE 34. V
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
Circuit of Figure 2. V
noted. Typical values are at T
V
PGND
PVIN6
PVIN5
PGND
PGND
PVIN4
PGND
PGND
PGND
PGND
PGND
LX6
LX6
LX5
LX4
GND
GND
OUT2
OUT2
LX2 5V/DIV
1V/DIV
= 3.3V OUTPUT SHORT CIRCUIT RECOVERY
ISL65426
PG2 5V/DIV
IN
= 5V, I
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
0.1μF ceramic capacitor and 5Ω 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
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.
A
OUT1
= +25°C. (Continued)
= 4A, I
IL2 5A/DIV
OUT2
= 2A, T
A
= -10°C to +100°C unless otherwise
November 14, 2006
FN6340.1
OUT