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ISL8018 Datasheet(PDF) 7 Page - Intersil Corporation

Part # ISL8018
Description  8A Low Quiescent Current High Efficiency Synchronous Buck Regulator
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL8018 Datasheet(HTML) 7 Page - Intersil Corporation

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ISL8018
7
FN7889.0
September 30, 2015
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Positive Peak Current Limit
IPLIMIT ISET = FLOAT
9.7
12.8
15.8
A
ISET = VIN
6.7
8.8
10.9
A
ISET = SGND
4
5.6
7.2
A
Peak Skip Limit
ISKIP
ISET = FLOAT
2.18
2.8
3.78
A
ISET = VIN
1.08
1.66
2.3
A
ISET = SGND
1.05
A
Zero Cross Threshold
-300
300
mA
Negative Current Limit
INLIMIT
-4.25
-3
-1.75
A
COMPENSATION
Error Amplifier Transconductance
FS = VIN
100
µA/V
FS with resistor
200
µA/V
Transresistance
RT
0.11
Ω
PHASE
P-Channel MOSFET ON-Resistance
VIN = 5V, IO = 200mA
31
45
VIN = 2.7V, IO = 200mA
44
55
N-Channel MOSFET ON-Resistance
VIN = 5V, IO = 200mA
19
35
VIN = 2.7V, IO = 200mA
25
50
PHASE Maximum Duty Cycle
100
%
PHASE Minimum On-Time
SYNCIN = High
140
ns
OSCILLATOR
Nominal Switching Frequency
fSW
FS = VIN
800
1000
1200
kHz
FS with RS = 402kΩ
440
520
600
kHz
FS with RS = 42.4kΩ
3200
3700
4200
kHz
SYNCIN Logic Low to High Transition Range
0.70
0.75
0.80
V
SYNCIN Hysteresis
0.15
V
SYNCIN Logic Input Leakage Current
VIN = 3.6V
3.6
5
µA
SYNCOUT Charging Current
ISO
PWM
210
250
290
µA
PFM
0
µA
SYNCOUT Voltage Low
0.3
V
PG
Output Low Voltage
0.3
V
Delay Time (Rising Edge)
0.5
1
2
ms
PG Pin Leakage Current
0.01
0.1
µA
OVP PG Rising Threshold
0.80
V
UVP PG Rising Threshold
80
85
90
%
UVP PG Hysteresis
5%
PGOOD Delay Time (Falling Edge)
7µs
Analog Specifications All parameter limits are established across the recommended operating conditions and are measured at the
following conditions: TA = -40°C to +85°C, VIN = 3.6V, EN = VIN, unless otherwise noted. Typical values are at TA = +25°C. Boldface limits apply across
the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 6)TYP
MAX
(Note 6)UNIT


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