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ISL97519A Datasheet(PDF) 2 Page - Intersil Corporation

Part No. ISL97519A
Description  600kHz/1.2MHz PWM Step-Up Regulator
Download  9 Pages
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ISL97519A Datasheet(HTML) 2 Page - Intersil Corporation

   
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2
FN6683.2
June 30, 2008
Absolute Maximum Ratings (TA = +25°C)
Thermal Information
LX to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27V
VDD to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V
COMP, FB, EN, SS, FSEL to GND . . . . . . . . . -0.3V to (VDD +0.3V)
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Operating Ambient Temperature . . . . . . . . . . . . . . . . -40°C to +85°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +135°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . See Curves on page 5
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.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
Electrical Specifications
VIN = 3.3V, VOUT = 12V, IOUT = 0mA, FSEL = GND, TA = -40°C to +85°C unless otherwise specified.
Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature
limits established by characterization and are not production tested.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
IQ1
Quiescent Current - Shutdown
EN = 0V
1
5
µA
IQ2
Quiescent Current - Not Switching
EN = VDD, FB = 1.3V
0.7
mA
IQ3
Quiescent Current - Switching
EN = VDD, FB = 1.0V
3
4.5
mA
VFB
Feedback Voltage
1.228
1.24
1.252
V
IB-FB
Feedback Input Bias Current
0.01
0.5
µA
VDD
Input Voltage Range
2.3
5.5
V
DMAX-600kHz Maximum Duty Cycle
FSEL = 0V
85
92
%
DMAX-1.2MHz Maximum Duty Cycle
FSEL = VDD
85
90
%
ILIM1
Current Limit - Max Peak Input Current
VDD < 2.8V
1.0
A
ILIM2
Current Limit - Max Peak Input Current
VDD > 2.8V
1.5
2.0
A
IEN
Shutdown Input Bias Current
EN = 0V
0.01
0.5
µA
rDS(ON)
Switch ON-Resistance
VDD = 2.7V, ILX = 1A
0.2
Ω
ILX-LEAK
Switch Leakage Current
VSW = 27V
0.01
3
µA
ΔVOUT/ΔVIN
Line Regulation
3V < VIN < 5.5V, VOUT = 12V
0.2
%
ΔV
OUT/ΔIOUT
Load Regulation
VIN = 3.3V, VOUT = 12V, IO = 30mA to 200mA
0.3
%
FOSC1
Switching Frequency Accuracy
FSEL = 0V
500
620
740
kHz
FOSC2
Switching Frequency Accuracy
FSEL = VDD
1000
1250
1500
kHz
VIL
EN, FSEL Input Low Level
0.5
V
VIH
EN, FSEL Input High Level
1.5
V
GM
Error Amp Tranconductance
ΔI = 5µA
70
130
150
1µ/
Ω
VDD-ON
VDD UVLO On Threshold
1.95
2.1
2.25
V
HYS
VDD UVLO Hysteresis
140
mV
ISS
Soft-Start Charge Current
2
3
4
µA
VSS-en
Minimum Soft-Start Enable Voltage
40
65
150
mV
ILIM-VSS-en
Current Limit Around SS Enable V
SS = 200mV
300
350
400
mA
OTP
Over-Temperature Protection
150
°C
ISL97519A


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