參數(shù)資料
型號(hào)： ISL6232CAZA
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： High Efficiency System Power Supply Controller for Notebook Computers
中文描述： 2 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO28
封裝： ROHS COMPLIANT, PLASTIC, QSOP-28
文件頁(yè)數(shù)： 3/25頁(yè)
文件大?。?/td> 746K
代理商： ISL6232CAZA
3
FN9116.0
April 18, 2005
Absolute Maximum Ratings
Thermal Information
SHDN#, VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +28V
BOOT3, BOOT5 to GND . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +33V
VCC, LDO3, LDO5, CS3, CS5, OUT3, OUT5, COMP3, COMP5,
FB3, FB5, SKIP#, FREQ, PGOOD, EN3, EN5, REF
to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V
BOOT3 to PHASE3 . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V
BOOT5 to PHASE5 . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V
UGATE3 to PHASE3 . . . . . . . . . . . . . . . . . . -0.3V to (BOOT3+0.3V)
UGATE5 to PHASE5 . . . . . . . . . . . . . . . . . . -0.3V to (BOOT5+0.3V)
LGATE3 to GND . . . . . . . . . . . . . . . . . . . . . . -0.3V to (LDO5+0.3V)
LGATE5 to PGND . . . . . . . . . . . . . . . . . . . . . -0.3V to (LDO5+0.3V)
PHASE3 to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-1V to 28V
PHASE5 to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1V to 28V
PGND to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Class 1
Thermal Resistance
QSOP Package (Note 1) . . . . . . . . . . . . . . . . . . . . .
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +150°C
Operating Temperature Range . . . . . . . . . . . . . . . -10°C to +100°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Lead Temperature (soldering, 10s) . . . . . . . . . . . . . . . . . . . .+300°C
θ
JA
(°C/W)
77
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
VIN = 12V, SHDN# = EN3 = EN5 = VCC, SKIP# = FB3 = FB5 = 0V, I
LDO5
= 0mA, I
LDO3
= 0mA,
C
REF
= 0.22μF,
C
LDO3
= C
LDO5
= 4.7μF, T
A
= -10°C to +100°C, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
SMPS CONTROLLER
VIN Voltage Range
(Note 3)
5.5
25
V
3.3V Fixed Output Voltage
VIN = 5.5V to 25V, FB3 = 0V, SKIP# = VCC
3.250
3.300
3.350
V
5.0V Fixed Output Voltage
VIN = 5.5V to 25V, FB5 = 0V, SKIP# = VCC
5.023
5.100
5.177
V
FB3/FB5 at Programmable Mode
VIN = 5.5V to 25V, SKIP# = VCC
0.788
0.800
0.812
V
FB3/FB5 Programmable Mode Threshold
Voltage
0.1
0.2
0.3
V
OUT3/OUT5 Voltage Range at Programmable
Mode
(Note 3)
0.8
5.5
V
Line Regulation
VIN = 5.5V to 25V @ OUT3
VIN = 5.5V to 25V @ OUT5
0.005
%/V
Load Regulation
SKIP# = VCC, IOUT = 0A to 5A
-0.1
%
SKIP# = 0V, IOUT = 0A to 5A
-0.5
SKIP# = REF, IOUT = 0A to 5A
-0.5
OUT3/OUT5 Input Leakage Current
LDO5 = OUT = 5.5V, EN3 = EN5 = 0V
0.1
1
μ
A
CS3/CS5 Input Leakage Current
LDO5 = CS = 5.5V, EN3 = EN5 = 0V
0.1
1
μ
A
FB3/FB5 Input Bias Current
FB = 0.75V
0.01
0.1
μ
A
COMP3/COMP5 Trans-Conductance
COMP = 2.5V
50
100
150
μ
S
Positive Current Limit Threshold
CS-OUT
64
80
96
mV
Pulse Skipping Current Threshold
CS-OUT
3
13
26
mV
Zero Crossing Current Threshold
CS-OUT
6
mV
Negative Current Limit Threshold
CS-OUT
-20
mV
Operating Frequency
VIN = 5.5V to 25V
255
300
345
kHz
Maximum Duty Cycle
94
%
OUT3/OUT5 Soft-Start Period
EN = VCC
1.0
1.2
1.4
ms
ISL6232
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