ISL8088 データシートの表示（PDF） - Renesas Electronics
部品番号
コンポーネント説明
メーカー
ISL8088
Renesas Electronics
ISL8088 Datasheet PDF : 18 Pages
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ISL8088
Absolute Maximum Ratings (Reference to GND)
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V (20ms)
EN1, EN2, PG, SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to VIN + 0.3V
LX1, LX2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to 6.5V
LX1, LX2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V (100ns)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V (DC) to 7V (20ms)
FB1, FB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300V
Thermal Information
Thermal Resistance (Typical)
JA (°C/W) JC(°C/W)
10 Ld 3x3 DFN Package (Notes 4, 5) . . . . . .
49
4
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.75V to 5.5V
Load Current Range Per Channel . . . . . . . . . . . . . . . . . . . . . 0mA to 800mA
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
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:
4. JA 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.
5. 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:
TA = -40°C to +85°C, VIN = 2.75V to 5.5V, EN1 = EN2 = VIN, SYNC = 0V, L = 2.2µH, C1 = 10µF, C2 = C4 = 10µF, IOUT1 = IOUT2 = 0A to 800mA. (Typical
values are at TA = +25°C, VIN = 3.6V). Boldface limits apply over the operating temperature range, -40°C to +85°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
INPUT SUPPLY
VIN Undervoltage Lockout Threshold
VUVLO
Rising
Falling
2.5 2.75
V
2.1
2.4
V
Quiescent Supply Current
IVIN SYNC = VIN, EN1 = EN2 = VIN, no load at the
output and no switches switching.
VFB1 = VFB2 = 0.7V
30
50
µA
Shut Down Supply Current
OUTPUT REGULATION
SYNC = GND, EN1 = EN2 = VIN,
FS = 2.25MHz, no load at the output
ISD VIN = 5.5V, EN1 = EN2 = GND
0.1
1
mA
6.5
12
µA
FB1, FB2 Regulation Voltage
FB1, FB2 Bias Current
Line Regulation
Soft-Start Ramp Time Cycle
VFB_
IFB_
VFB = 0.55V
VIN = VO + 0.5V to 5.5V (minimal 2.75V,
IOUT = 0A)
0.590 0.6 0.610
V
0.1
µA
0.2
%/V
2
ms
OVERCURRENT PROTECTION
Peak Overcurrent Limit
Peak SKIP Limit
LX1, LX2
Ipk1
Ipk2
Iskip1
Iskip2
VIN = 3.6V
0.95
1.2
1.6
A
0.95
1.2
1.6
A
180 250 360
mA
180 250 360
mA
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
VIN = 5.5V, IO = 200mA
VIN = 2.75V, IO = 200mA
VIN = 5.5V, IO = 200mA
VIN = 2.75V, IO = 200mA
180 350
mΩ
320 450
mΩ
180 350
mΩ
320 450
mΩ
FN6858 Rev 2.00
May 26, 2011
Page 4 of 18
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