isl6455a Intersil Corporation, isl6455a Datasheet - Page 5

• Manufacturer Part Number: isl6455a
• Description: 0.6a Pwm Regulator And Dual 0.3a Ldos And Reset
• Manufacturer: Intersil Corporation

Electrical Specifications
Efficiency
Soft-Start Time
OSCILLATOR
Oscillator Frequency
Frequency Synchronization Range (f
SYNC High Level Input Voltage
SYNC Low Level Input Voltage
Sync Input Leakage Current
Min Duty Cycle of External Clock Signal (Note 6)
Max Duty Cycle of External Clock Signal (Note 6)
PG_PWM
Rising Threshold
Falling Threshold
Leakage Current
LDO1 SPECIFICATIONS
Output Voltage Range
Output Voltage Range
FB_LDO1 Voltage Accuracy (Note 7)
Maximum Output Current (Note 6)
Output Current Limit (Note 6)
Dropout Voltage (Note 4)
FB_LDO1 Line Regulation
FB_LDO1 Load Regulation
Output Voltage Noise (Note 6)
LDO2 SPECIFICATIONS
Output Voltage Range
Output Voltage Range
FB_LDO2 Voltage Accuracy (Note 7)
Maximum Output Current (Note 6)
Output Current Limit (Note 6)
Dropout Voltage (Note 4)
FB_LDO2 Line Regulation
FB_LDO2 Load Regulation
Output Voltage Noise (Note 6)
PARAMETER
5
Recommended operating conditions unless otherwise noted. V
5.0V for the ISL6455A, Compensation Capacitors = 33nF for LDO1 and LDO2. T
values are at T
SYNC
)
A
I
4096 Clock Cycles @ 750kHz
T
Clock signal on SYNC pin
As % of V
As % of V
SYNC = GND or V
1.2mA source/sink, FB_PWM vs 0.45V V
FB_PWM vs 0.45V V
PG_PWM = GND or V
VIN_VLDO > 3.0V
VIN_VLDO > 3.6V
I
V IN = 3.6V
I
I
I
10Hz < f < 100kHz, I
C
C
VIN_VLDO > 3.0V
VIN_VLDO > 3.6V
I
V IN = 3.6V
I
I
I
10Hz < f < 100kHz, I
C
C
= 25°C. (Continued)
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
A
OUT
OUT
OUT
OUT
= -40°C to +85°C
= 200mA, V
= 10mA
= 300mA
= 10mA, VIN_LDO = 3.0-5.5V
= 10mA to 300mA
= 10mA
= 300mA
= 10mA, VIN_LDO = 3.0-5.5V
= 10mA to 300mA
ISL6455, ISL6455A
= 2.2µF
= 10µF
= 2.2µF
= 10µF
IN
IN
TEST CONDITIONS
IN
IN
= 3.3V, V
OUT
OUT
REF
IN
= 10mA
= 10mA
OUT
= 1.8V
REF
IN
= V
IN
_LDO = PV
-10.5
+5.5
MIN
620
500
-1.0
-1.5
300
350
-0.5
-0.5
-1.5
300
350
-0.5
-0.5
1.2
1.2
1.2
1.2
70
-
-
-
-
-
-
-
-
-
-
-
-
A
= -40°C to 85° (Note 2), typical
CC
TYP
0.01
750
-8.0
420
150
420
150
= 3.3V for ISL6455 and
5.5
8.0
93
20
80
65
60
30
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+10.5
MAX
1000
-5.5
880
600
300
600
300
1.0
0.1
2.7
3.3
1.5
0.5
0.5
2.7
3.3
1.5
0.5
0.5
30
December 21, 2005
-
-
-
-
-
-
-
-
-
-
-
µV
µV
µV
µV
UNITS
FN9196.0
%/V
%/V
kHz
kHz
mA
mA
mV
mA
mA
mV
ms
µA
µA
%
%
%
%
%
%
%
%
%
%
%
V
V
RMS
RMS
V
V
RMS
RMS