ISL6455 Datasheet, PDF (5/13 Pages) Intersil Corporation – Low shutdown supply current

ISL6455, ISL6455A
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
NMOS r_DS(ON)
Efficiency
Soft-Start Time
I_OUT = 200mA
I_OUT = 200mA, V_IN = 3.3V, V_OUT = 1.8V
4096 Clock Cycles @ 750kHz
-
50
-
m
-
93
-
%
-
5.5
-
ms
OSCILLATOR
Oscillator Frequency
T_A = -40°C to +85°C
Frequency Synchronization Range (f_SYNC)
Clock signal on SYNC pin
SYNC High Level Input Voltage
As % of V_IN
SYNC Low Level Input Voltage
As % of V_IN
Sync Input Leakage Current
SYNC = GND or V_IN
Min Duty Cycle of External Clock Signal (Note 6)
620
750
880
kHz
500
-
1000 kHz
70
-
-
%
-
-
30
%
-1.0
-
1.0
A
-
20
-
%
Max Duty Cycle of External Clock Signal (Note 6)
-
80
-
%
PG_PWM
Rising Threshold
Falling Threshold
Leakage Current
LDO1 SPECIFICATIONS
1.2mA source/sink, FB_PWM vs 0.45V V_REF
FB_PWM vs 0.45V V_REF
PG_PWM = GND or V_IN
+5.5
8.0 +10.5
%
-10.5 -8.0
-5.5
%
-
0.01
0.1
A
Output Voltage Range
VIN_VLDO > 3.0V
1.2
-
2.7
V
Output Voltage Range
VIN_VLDO > 3.6V
1.2
-
3.3
V
FB_LDO1 Voltage Accuracy (Note 7)
Maximum Output Current (Note 6)
Output Current Limit (Note6)
I_OUT = 10mA
V_IN = 3.6V
-1.5
-
1.5
%
300
-
-
mA
350
420
600
mA
Dropout Voltage (Note 4)
FB_LDO1 Line Regulation
FB_LDO1 Load Regulation
Output Voltage Noise (Note 6)
LDO2 SPECIFICATIONS
I_OUT = 300mA
I_OUT = 10mA, VIN_LDO = 3.0-5.5V
I_OUT = 10mA to 300mA
10Hz < f < 100kHz, I_OUT = 10mA
C_OUT = 2.2µ2F
C_OUT = 10µF
-
150
300
mV
-0.5
-
0.5
%/V
-0.5
-
0.5
%
-
65
-
V_RMS
-
60
-
V_RMS
Output Voltage Range
VIN_VLDO > 3.0V
1.2
-
2.7
V
Output Voltage Range
VIN_VLDO > 3.6V
1.2
-
3.3
V
FB_LDO2 Voltage Accuracy (Note 7)
Maximum Output Current (Note 6)
Output Current Limit (Note 6)
I_OUT = 10mA
V_IN = 3.6V
-1.5
-
1.5
%
300
-
-
mA
350
420
600
mA
Dropout Voltage (Note 4)
FB_LDO2 Line Regulation
FB_LDO2 Load Regulation
I_OUT = 300mA
I_OUT = 10mA, VIN_LDO = 3.0V - 5.5V
I_OUT = 10mA to 300mA
-
150
300
mV
-0.5
-
0.5
%/V
-0.5
-
0.5
%
5
FN9196.1
February 19, 2014