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ISL6237IRZ View Datasheet(PDF) - Intersil

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ISL6237IRZ Datasheet PDF : 34 Pages
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ISL6237
Absolute Voltage Ratings
VIN, EN_LDO to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +27V
BOOT_ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT_ to PHASE_ . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
VCC, EN_, SKIP#, TON,
PVCC, POK_ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
LDO, FB1, REFIN2, LDOREFIN to GND . . . -0.3V to (VCC + 0.3V)
OUT_, REF to GND . . . . . . . . . . . . . . . . . . . . -0.3V to (VCC + 0.3V
UGATE_ to PHASE_ . . . . . . . . . . . . . . . . . . -0.3V to (PVCC + 0.3V)
ILIM_ to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VCC + 0.3V)
LGATE_, BYP to GND . . . . . . . . . . . . . . . . . -0.3V to (PVCC + 0.3V)
PGND to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to + 0.3V
LDO, REF Short Circuit to GND . . . . . . . . . . . . . . . . . . . Continuous
VCC Short Circuit to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1s
LDO Current (Internal Regulator) Continuous . . . . . . . . . . . . 100mA
LDO Current (Switched Over to OUT1) Continuous . . . . . . +200mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°CW)
32 Ld QFN (Notes 1, 2) . . . . . . . . . . . .
32
3.0
Operating Temperature Range . . . . . . . . . . . . . . . .-40°C to +100°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
CAUTION: Stress 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 section of this specification is not implied.
NOTES:
1. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
PARAMETER
No load on LDO, OUT1, OUT2, and REF, VIN = 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V,
VEN_LDO = 5V, TA = -40°C to +100°C, unless otherwise noted. Typical values are at TA = +25°C.
CONDITIONS
MIN
TYP
MAX
MAIN SMPS CONTROLLERS
VIN Input Voltage Range
LDO in regulation
5.5
25
3.3V Output Voltage in Fixed Mode
1.05V Output Voltage in Fixed Mode
VIN = LDO, VOUT1 < 4.43V
VIN = 5.5V to 25V, REFIN2 > (VCC - 1V), SKIP# = 5V
VIN= 5.5V to 25V, 3.0 < REFIN2 < (VCC - 1.1V),
SKIP# = 5V
4.5
3.285
1.038
3.330
1.05
5.5
3.375
1.062
1.5V Output Voltage in Fixed Mode
5V Output Voltage in Fixed Mode
FB1 in Output Adjustable Mode
REFIN2 in Output Adjustable Mode
SMPS1 Output Voltage Adjust Range
VIN = 5.5V to 25V, FB1 = VCC, SKIP# = 5V
VIN = 5.5V to 25V, FB1 = GND, SKIP# = 5V
VIN = 5.5V to 25V
VIN = 5.5V to 25V
SMPS1
1.482
4.975
0.693
0.7
0.70
1.500
5.050
0.700
1.518
5.125
0.707
2.50
5.50
SMPS2 Output Voltage Adjust Range
SMPS2
0.50
2.50
SMPS2 Output Voltage Accuracy
(Referred for REFIN2)
REFIN2 = 0.7V to 2.5V, SKIP# = VCC
-1.0
1.0
DC Load Regulation
Either SMPS, SKIP# = VCC, 0 to 5A
-0.1
Either SMPS, SKIP# = REF, 0 to 5A
-1.7
Either SMPS, SKIP# = GND, 0 to 5A
-1.5
Line Regulation
Current-Limit Current Source
Either SMPS, 6V < VIN < 24V
Temperature = +25°C
0.005
4.75
5
5.25
ILIM_ Adjustment Range
0.2
2
Current-Limit Threshold (Positive, Default) ILIM_ = VCC, GND - PHASE_
(No temperature compensation)
93
100
107
UNITS
V
V
V
V
V
V
V
V
V
V
%
%
%
%
%/V
µA
V
mV
3
FN6418.1
March 16, 2007
 

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