ISL8012(2008) 데이터 시트보기 (PDF) - Intersil
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ISL8012 Datasheet PDF : 15 Pages
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ISL8012
Absolute Maximum Ratings (Reference to GND)
VIN, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
EN, RSI, PG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN+0.3V
LX. . . . . . . . . . . . . . . . . . . . . . . . . .-1.5V (100ns)/-0.3V (DC) to 6.5V
VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
Recommended Operating Conditions
VIN Supply Voltage Range. . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 2A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θJA (°C/W) θJC (°C/W)
10 Ld 3x3 DFN Package . . . . . . . . .
49
5.5
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
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. 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. θJC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
3. Limits established by characterization and are not production tested.
4. Parts are 100% tested at +25°C. Temperature limits established by characterization and are not production tested.
Electrical Specifications
PARAMETER
Unless otherwise noted, all parameter limits are established over the recommended operating conditions and
the typical specifications are measured at the following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN = VCC,
unless otherwise noted. Typical values are at TA = +25°C.
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 4) TYP (Note 4) UNITS
INPUT SUPPLY
VIN Under Voltage Lockout Threshold
VUVLO Rising
Falling
2.5
2.7
V
2.2
2.4
V
Quiescent Supply Current
IVIN MODE = VIN, no load at the output
MODE = VIN, no load at the output and no
switches switching; design info only
40
60
µA
15
µA
MODE = SGND, no load at the output
6
8
mA
Shut Down Supply Current
OUTPUT REGULATION
ISD VIN = 5.5V, EN = low
0.1
2
µA
VFB Regulation Voltage
VFB Bias Current
Output Voltage Accuracy
VVFB
IVFB
TA = 0°C to +85°C
VFB = 0.75V
VIN = VO + 0.5V to 5.5V, IO = 0A to 2A
(Note 3)
0.784 0.8 0.816
V
0.1
µA
-3
3
%
Line Regulation
COMPENSATION
VIN = VO + 0.5V to 5.5V (minimal 2.7V),
IOUT = 400mA
0.2
%/V
Error Amplifier Trans-Conductance
Adjustable version, design info only
20
µA/V
LX
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
P-Channel MOSFET Peak Current Limit
LX Maximum Duty Cycle
VIN = 5.5V, IO = 200mA
VIN = 2.7V, IO = 200mA
VIN = 5.5V, IO = 200mA
VIN = 2.7V, IO = 200mA
IPK
0.12 0.22
Ω
0.21 0.27
Ω
0.11 0.22
Ω
0.13 0.27
Ω
2.65 3.00 3.50
A
100
%
PWM Switching Frequency
fS
TA = 0°C to +85°C
0.840
1
1.16 MHz
4
FN6616.0
March 11, 2008
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