ISL62381 Datasheet, PDF (3/23 Pages) Intersil Corporation – High-Efficiency, Quad or Triple-Output System Power Supply Controller for Notebook Computers

ISL62381, ISL62382, ISL62383
Absolute Maximum Ratings
VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
VCC_1,2, PGOOD_1,2, LDO5 to GND. . . . . . . . . . . . . . -0.3V to +7.0V
EN_1,2, LDO3EN . . . . . . . . . . . . . . . . . . -0.3V to GND, VCC1 + 0.3V
VOUT_1,2, FB_1,2, LDO3FB, FSET_1,2 . . -0.3V to GND, VCC1 + 0.3V
PHASE_1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . (DC) -0.3V to +28V
(<100ns Pulse Width, 10µJ) . . . . . . . . . . . . . . . . . . . . . . . . . -5.0V
BOOT_1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT_1,2 to PHASE_1,2 . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
UGATE_1,2 . . . . . . . . . . . (DC) -0.3V to PHASE_1,2, BOOT_1,2 + 0.3V
(<200ns Pulse Width, 20µJ) . . . . . . . . . . . . . . . . . . . . . . . . -4.0V
LGATE_1,2 . . . . . . . . . . . . . . . . . . . (DC) -0.3V to GND, VCC1 + 0.3V
(<100ns Pulse Width, 4µJ) . . . . . . . . . . . . . . . . . . . . . . . . . . -2.0V
LDO3, LDO5 Output Continuous Current . . . . . . . . . . . . . . +100mA
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θ_JA (°C/W) θ_JC (°C/W)
TQFN Package . . . . . . . . . . . . . . . . . .
40
3
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +150°C
Operating Temperature Range . . . . . . . . . . . . . . . .-10°C to +100°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Ambient Temperature Range. . . . . . . . . . . . . . . . . . . -10°C to 100°C
Supply Voltage (VIN to GND) . . . . . . . . . . . . . . . . . . . . 5.5V to 25V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. θ_JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
3. Limits established by characterization and are not production tested.
4. F_SW accuracy reflects IC tolerance only; it does not include frequency variation due to V_IN, V_OUT, L_OUT, ESR_COUT, or other application specific
parameters.
Electrical Specifications
These specifications apply for T_A = -10°C to +100°C, unless otherwise noted. Typical values are at T_A = +25°C,
VIN = 12V; Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified.
Temperature limits established by characterization and are not production tested
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
VIN
VIN Power-on Reset (POR)
Rising Threshold
5.3
5.4
5.5
V
Hysteresis
20
80
150
mV
VIN Shutdown Supply Current
EN1 = EN2 = GND or Floating, LDO3EN = GND
-
6
15
µA
VIN Standby Supply Current
EN1 = EN2 = GND or Floating, LDO3EN = VCC1
-
150
250
µA
LINEAR REGULATOR
LDO5 Output Voltage
LDO5 Short-Circuit Current (Note 3)
I_{_LDO5} = 0
I_{_LDO5} = 100mA (Note 3)
LDO5 = GND
4.9
5.0
5.1
V
4.9
5.0
5.1
V
-
190
-
mA
LDO5 UVLO Threshold Voltage (Note 3)
Rising edge of LDO5
-
4.35
-
V
Falling edge of LDO5
-
4.15
-
V
SMPS2 to LDO5 Switchover Threshold
4.63
4.80
4.93
V
SMPS2 to LDO5 Switchover Resistance (Note 3) VOUT2 to LDO5, VOUT2 = 5V
-
2.5
3.2
Ω
LDO3 Reference Voltage (Note 3)
-
1.2
-
V
LDO3 Voltage Regulation Range
LDO3 Short-Circuit Current (Note 3)
LDO3IN > V_LDO3+dropout
LDO3 = GND
1.2
-
5
V
-
180
-
mA
LDO3EN Input Voltage
Rising edge
1.1
-
2.5
V
Falling edge
0.94
-
1.06
V
LDO3EN Input Leakage Current
LDO3EN = GND or VCC1
-1
1
µA
LDO3 Discharge ON-Resistance
LDO3EN = GND
-
36
60
Ω
3
FN6665.4
August 7, 2008