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ISL85012 Datasheet(PDF) 5 Page - Renesas Technology Corp

Part No. ISL85012
Description  12A, 3.8V to 18V Input, Synchronous Buck Regulator
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Maker  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
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ISL85012 Datasheet(HTML) 5 Page - Renesas Technology Corp

 
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ISL85012
FN8677 Rev.2.00
Page 5 of 19
Mar 17, 2017
Absolute Maximum Ratings
Thermal Information
VIN, EN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +24V
PVIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +24V
PHASE to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.7V to +24V (DC)
PHASE to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2V to +24V (40ns)
BOOT to PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
VDD, COMP, SYNC, PG, FB, MODE, FREQ, SS, IOCP to GND . . . -0.3V to +7V
ESD Rating
Human Body Model (Tested per JS-001-2014) . . . . . . . . . . . . . . . . .2.5kV
Charged Device Model (Tested per JS-002-2014) . . . . . . . . . . . . . . . 1kV
Latch-Up (Tested per JESD78E; Class 2, Level A, +125°C) . . . . . . . 100mA
Thermal Resistance
JA (°C/W) JC (°C/W)
TQFN Package (Notes 9, 10). . . . . . . . . . . .
33
1.2
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB49
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 18V
PVIN Supply Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8V to 18V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 12A
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:
9.
JA is measured in free air with the component mounted on a high-effective thermal conductivity test board with “direct attach” features, except with
3 vias under the GND EPAD strip contacting the GND plane, and two vias under the VIN EPAD strip contacting the VIN plane. See Tech Brief TB379.
10. For
JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating conditions and
the typical specification are measured at the following conditions: TJ = -40°C to +125°C, VIN = 4.5V to 18V, unless otherwise noted. Typical values are at
TA = +25°C. Boldface limits apply across the operating temperature range, -40°C to +125°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 11)TYP
MAX
(Note 11)UNIT
SUPPLY VOLTAGE
PVIN Voltage Range
PVIN
3.8
18
V
VIN Voltage Range
VIN
4.5
18
V
VIN Quiescent Supply Current
IQ
EN = 2V, FB = 0.64V
3
5
mA
VIN Shutdown Supply Current
ISD
EN = GND
8
13
µA
POWER-ON RESET
PVIN POR Threshold
Rising edge
2.9
V
Falling edge
1.9
V
VIN POR Threshold
Rising edge
4.49
V
Falling edge
3.4
V
EN POR Threshold
Rising edge
0.5
0.6
0.7
V
Hysteresis
100
mV
VDD POR Threshold
Rising edge
3.6
V
Falling edge
2.4
V
INTERNAL VDD LDO
VDD Output Voltage Regulation Range
VIN = 6V to 18V, IVDD = 0mA to 30mA
4.3
5.0
5.5
V
VDD Output Current Limit
80
mA
LDO Dropout Voltage
VIN = 5V, IVDD = 30mA
0.65
V
OSCILLATOR
Nominal Switching Frequency
fSW1
FREQ = float
540
600
660
kHz
Nominal Switching Frequency
fSW2
FREQ = GND
250
280
310
kHz
Minimum On-Time
tON
IOUT = 0mA
90
150
ns
Minimum Off-Time
tOFF
140
170
ns
Synchronization Range
100
1000
kHz
SYNC Logic Input Low
0.5
V
SYNC Logic Input High
1.2
V


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