ISL6273 Datasheet, PDF (3/12 Pages) Intersil Corporation – 1.2A Low Quiescent Current 1.5MHz High Efficiency Synchronous Buck Regulator

ISL6273
Electrical Specifications
PARAMETER
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and
the typical specification are measured at the following conditions: T_A = 25°C, V_PVIN = V_VCC = 3.6V, EN = VCC,
RSI = 0V, MODE = VCC, L = 1.8µH, C1 = 10µF, C2 = 10µF, I_OUT = 0A (see the Typical Application Circuit).
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
POR
Output Low Voltage
Sinking 1mA, FB = 0.7V
-
-
0.3
V
Delay Time
150
200
275
ms
POR Pin Leakage Current
POR = VCC = 3.6V
-
0.01
0.1
µA
Minimum Supply Voltage for Valid POR Signal
1.2
-
-
V
Internal PGOOD Low Rising Threshold
Percentage of Nominal Regulation Voltage
89.5
92
94.5
%
Internal PGOOD Low Falling Threshold
Percentage of Nominal Regulation Voltage
85
88
91
%
Internal PGOOD High Rising Threshold
Percentage of Nominal Regulation Voltage 105.5 108 110.5
%
Internal PGOOD High Falling Threshold
Percentage of Nominal Regulation Voltage
102
105
108
%
Internal PGOOD Delay Time
-
50
-
µs
EN, MODE, RSI
Logic Input Low
-
-
0.4
V
Logic Input High
1.4
-
-
V
Logic Input Leakage Current
Pulled up to 5.5V
-
0.1
1
µA
Thermal Shutdown
-
150
-
°C
Thermal Shutdown Hysteresis
-
25
-
°C
3
FN9256.0
March 7, 2006