ISL97656
Absolute Maximum Ratings (TA = +25°C)
Temperature Under Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Terminal Voltage with Respect to GND:
VIN to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.5V
LX to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26V
COMP, FB, EN, SS, FREQ to GND. . . . . . . . . . . . . . . . .-0.3V to (VIN +0.3V)
Maximum Continuous Junction Temperature . . . . . . . . . . . . . . . . . .+135°C
ESD Rating (JEDEC)
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V
Charged Device Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2kV
Thermal Information
Thermal Resistance (Typical)
JA (°C/W) JC (°C/W)
10 Ld TDFN Package (Notes 4, 5) . . . . . . .
53
3
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:
4. JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
5. For JC, the “case temp” location is the center of the exposed metal pad on the package underside.
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 = 3V, VOUT = 12V, IOUT = 0mA, FREQ = GND, TA = -40°C to +85°C, unless otherwise specified. Boldface
limits apply over the operating temperature range, -40°C to +85°C.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNIT
IDD-SHDN
IDD-STDBY
IDD-ACTIVE
VFB
IDD-FB
VIN
Shutdown Supply Current
Standby Supply Current
Active Supply Current
Feedback Voltage
Feedback Input Bias Current
Input Voltage Range
EN = 0V
EN = VIN, FB = 1.3V
EN = VIN, FB = 1.0V
0.1
5
µA
0.7
mA
3
5
mA
1.22 1.24 1.26 V
0.01 0.5 µA
2.2
6.0
V
DMAX - 640kHz Maximum Duty Cycle
FREQ = 0V
85 92
%
DMAX - 1.2MHz Maximum Duty Cycle
FREQ = VIN
85 90
%
ILIM
Current Limit - Max Peak Input Current
3.8 4.0 5.1
A
IEN
EN pin Input Bias Current
EN = 0V
0.01 0.5 µA
rDS(ON)
Switch ON Resistance
VIN = 2.7V, ILX = 1A
0.12
Ω
ILX-LEAK
Switch Leakage Current
VSW = 26V
0.01 3
µA
VOUT/VIN Line Regulation
2.2V < VIN < 5.5V, VOUT = 12V
0.2
%
VOUT/IOUT Load Regulation
VIN = 3.3V, VOUT = 12V, IO = 30mA to 200mA
0.3
%
FOSC1
Switching Frequency Accuracy
FREQ = 0V
500 640 740 kHz
FOSC2
Switching Frequency Accuracy
FREQ = VIN
1000 1220 1500 kHz
VIL
EN, FREQ pin Input Low Level
0.5
V
VIH
EN, FREQ pin Input High Level
1.5
V
gM
VINUVLO
Error Amp Tranconductance
VIN UVLO Threshold rising
70
2.00
130
2.10
250
2.20
µA/V
V
VINUVLO-HYST VIN UVLO Hysteresis
50
mV
ISS
Soft-Start Charge Current
2.5 4.5 7.5 µA
TOTP
Over-Temperature Protection
150
°C
NOTE:
6. 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.
FN6439 Rev 6.00
July 19, 2012
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