ISL6420IAZ-TK Intersil, ISL6420IAZ-TK Datasheet - Page 6

• Manufacturer Part Number: ISL6420IAZ-TK
• Description: IC CTRLR PWM SYNC BUCK 20-QSOP
• Manufacturer: Intersil

Specifications of ISL6420IAZ-TK

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 1.4MHz
• Duty Cycle: 100%
• Voltage - Supply: 4.5 V ~ 16 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QSOP
• Frequency-max: 1.4MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Absolute Maximum Ratings
Bias Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+18V
BOOT and Ugate Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +24V
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:
Electrical Specifications
VIN SUPPLY
Input Voltage Range
VIN SUPPLY CURRENT
Shutdown Current (Note 4)
Operating Current (Notes 4, 5)
VCC5 SUPPLY (Notes 5, 6)
Input Voltage Range
Output Voltage
Maximum Output Current
POWER-ON RESET
Rising V
Falling V
UVLO Threshold Hysteresis
PWM CONVERTERS
Maximum Duty Cycle
Minimum Duty Cycle
FB pin bias current
Undervoltage Protection
Overvoltage Protection
OSCILLATOR
Free Running Frequency
Total Variation
Frequency Range (Set by RT)
Ramp Amplitude (Note 7)
1. All voltages are with respect to GND.
2. θ
3. For θ
Tech Brief TB379.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
CC5
JC
CC5
, the “case temp” location is the center of the exposed metal pad on the package underside.
Threshold
Threshold
PARAMETER
6
Operating Conditions, Unless Otherwise Noted: VIN = 12V, PV
(Note 1)
SYMBOL
ΔV
V
V
OVP1
UV1
OSC
ENSS = GND
VIN = VCC5 for 5V configuration
VIN = 5.6V to 16V, I
VIN = 12V
VIN connected to VCC5, 5V input
operation
F
F
Fraction of the set point; ~3μs noise filter
Fraction of the set point; ~1μs noise filter
RT = VCC5, T
T
external resistor at RT
VIN = 12V
SW
SW
A
= -40°C to +85°C, with freq. set by
ISL6420
= 300kHz
= 300kHz
TEST CONDITIONS
A
Thermal Information
Thermal Resistance (Typical)
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Ambient Temperature Range. . . . . . . . -40°C to +85°C (for “I” suffix)
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
= -40°C to +85°C
QFN Package (Notes 2, 3). . . . . . . . . .
QSOP Package (Note 2) . . . . . . . . . . .
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
L
= 3mA to 50mA
CC
shorted with V
MIN
4.32
4.09
0.16
112
270
100
5.6
4.5
4.5
-10
50
90
75
-
-
-
-
-
CC5
TYP
1.25
300
1.4
2.0
5.0
5.0
4.4
4.1
12
96
80
-
-
-
-
-
-
-
, T
θ
JA
A
(°C/W)
47
90
= +25°C
MAX
1400
4.45
4.25
120
330
+10
3.0
5.5
5.5
16
85
0
-
-
-
-
-
-
February 13, 2008
θ
JC
UNITS
V
FN9151.5
8.5
NA
(°C/W)
kHz
kHz
mA
mA
mA
nA
%
%
%
%
%
P-P
V
V
V
V
V
V