ISL6455 Datasheet, PDF (4/13 Pages) Intersil Corporation – Low shutdown supply current

ISL6455, ISL6455A
Absolute Maximum Ratings
Supply Voltage V_IN, PV_CC, V_IN_LDO. . . . . . . . GND -0.3V to +6.0V
Max Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . 600mA
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance (Typical)
_JA (°C/W) _JC (°C/W)
24 Ld QFN (Note 1) . . . . . . . . . . . . . . .
42
6
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Maximum Junction Temperature Range . . . . . . . . .-55°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.
NOTES:
1. _JA 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. For _JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Recommended operating conditions unless otherwise noted. V_IN = V_IN_LDO = PV_CC = 3.3V for ISL6455 and
5.0V for the ISL6455A, Compensation Capacitors = 33nF for LDO1 and LDO2. T_A = -40°C to +85° (Note 2),
typical values are at T_A = +25°C.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
TEST CONDITIONS
MIN
TYP MAX UNITS
V_CC SUPPLY
VIN_PWM Supply Voltage Range
ISL6455
3.0
3.3
3.6
V
ISL6455A
4.2
5.0
5.5
V
VIN_LDO Supply Voltage Range
3.0
-
5.5
V
Operating Supply Current (Note 4) for ISL6455
V_IN = V_IN_LDO = PV_CC = 3.3V
f_SW = 750kHz, C_OUT = 10µF, I_L = 0mA
Operating Supply Current (Note 4) for ISL6455A V_IN = V_IN_LDO = PV_CC = 5.0V
f_SW = 750kHz, C_OUT = 10µF, I_L = 0mA
Shutdown Supply Current
ISL6455 and ISL6455A
EN = EN_LDO = GND
-
2.5
3.1
mA
-
3.5
4.5
mA
-
5
10
µA
Input Bias Current (EN pin)
VIN_PWM UVLO Threshold for ISL6455
VIN_PWM UVLO Threshold for ISL6455A
VIN_LDO UVLO Threshold for ISL6455 and
ISL6455A
Thermal Shutdown Temperature (Note 6)
EN = EN_LDO = GND/V_IN
V_TR
V_TF
V_TR
V_TF
V_TR
V_TF
Rising Threshold
-1.5
1.0
1.5
µA
2.55 2.65 2.71
V
2.51 2.56 2.61
V
3.94 4.05 4.13
V
3.78 3.89 3.97
V
2.46 2.64 2.82
V
2.53 2.59 2.66
V
-
150
-
°C
Thermal Shutdown Hysteresis (Note 6)
-
20
-
°C
SYNCHRONOUS BUCK PWM REGULATOR
Output Voltage
ISL6455
0.8
-
2.5
V
ISL6455A
0.8
-
3.3
V
FB_PWM Initial Voltage Accuracy (Note 7)
FB_PWM Line Regulation
V_REF = 0.45V, I_OUT = 3mA, T_A = -40°C to +85°C
I_O = 3mA, V_IN = PV_CC = 3.0V - 3.6V (ISL6455)
or 4.2V - 5.5V (6455A)
-0.9
-
0.9
%
-0.5
-
0.5
%
FB_PWM Load Regulation
I_O = 3mA to 500mA, V_IN = PV_CC = 3.0V - 3.6V
(ISL6455) or 4.2V - 5.5V (ISL6455A)
-1.1
-
+1.1
%
Peak Output Current Limit
700mA
-
1300
mA
PMOS r_DS(ON)
I_OUT = 200mA
-
170
-
m
4
FN9196.1
February 19, 2014