ISL8014 Ver la hoja de datos (PDF) - Intersil
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Lista de partido
ISL8014 Datasheet PDF : 16 Pages
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ISL8014
Absolute Maximum Ratings (Reference to GND)
VIN, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
EN, SYNCH, 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 4A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θJA (°C/W) θJC (°C/W)
16 Ld 4x4 QFN Package . . . . . . . . .
40
3
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.
NOTE:
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.
Electrical Specifications
PARAMETER
Unless otherwise noted, all parameter limits are established over the recommended operating conditions and
the typical specification are measured at the following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN = VDD,
unless otherwise noted. Typical values are at TA = +25°C.
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
INPUT SUPPLY
VIN Undervoltage Lockout Threshold
VUVLO Rising, no load
Falling, no load
-
2.5
2.7
V
2.2
2.4
-
V
Quiescent Supply Current
IVIN SYNCH = GND, no load at the output
-
SYNCH = GND, no load at the output and no
-
switches switching
35
-
µA
30
45
µA
SYNCH = VDD, FS = 1MHz, no load at the
-
6.5
10
mA
output
Shut Down Supply Current
OUTPUT REGULATION
ISD VIN = 5.5V, EN = low
-
0.1
2
µA
Reference Voltage
VFB Bias Current
Line Regulation
Soft-Start Ramp Time Cycle
VREF
IVFB
VFB = 0.75V
VIN = VO + 0.5V to 5.5V (minimal 2.7V)
0.790 0.8 0.810
V
-
0.1
-
µA
-
0.2
-
%/V
-
1
-
ms
OVERCURRENT PROTECTION
Current Limit Blanking Time
tOCON
-
17
-
Clock
pulses
Overcurrent and Auto Restart Period
Switch Current Limit
Peak Skip Limit
COMPENSATION
tOCOFF
ILIMIT (Note 3)
ISKIP (Note 3)
-
4
- SS cycle
4.9
6.0
7.1
A
-
1.3
-
A
Error Amplifier Trans-Conductance
-
20
-
µA/V
Trans-Resistance
RT
0.17 0.20 0.23
Ω
LX
P-Channel MOSFET ON-Resistance
VIN = 5V, IO = 200mA
VIN = 2.7V, IO = 200mA
-
50
75
mΩ
-
70
100
mΩ
4
FN6576.1
December 20, 2007
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