参数资料
型号: ISL6455AIRZ-T5K
厂商: Intersil
文件页数: 5/12页
文件大小: 0K
描述: IC REG PWM 0.6A DUAL LDO 24-QFN
标准包装: 5,000
应用: 转换器,FPGAs
输入电压: 4.2 V ~ 5.5 V
输出数: 3
输出电压: 0.8 V ~ 3.3 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-VFQFN 裸露焊盘
供应商设备封装: 24-QFN(4x4)
包装: 带卷 (TR)
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. (Continued)
Efficiency
Soft-Start Time
PARAMETER
TEST CONDITIONS
I OUT = 200mA, V IN = 3.3V, V OUT = 1.8V
4096 Clock Cycles @ 750kHz
MIN
-
-
TYP
93
5.5
MAX
-
-
UNITS
%
ms
OSCILLATOR
Oscillator Frequency
Frequency Synchronization Range (f SYNC )
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)
T A = -40°C to +85°C
Clock signal on SYNC pin
As % of V IN
As % of V IN
SYNC = GND or V IN
620
500
70
-
-1.0
-
-
750
-
-
-
-
20
80
880
1000
-
30
1.0
-
-
kHz
kHz
%
%
μ A
%
%
PG_PWM
Rising Threshold
Falling Threshold
Leakage Current
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
-10.5
-
8.0
-8.0
0.01
+10.5
-5.5
0.1
%
%
μ A
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
VIN_VLDO > 3.0V
VIN_VLDO > 3.6V
I OUT = 10mA
VIN = 3.6V
I OUT = 300mA
I OUT = 10mA, VIN_LDO = 3.0-5.5V
I OUT = 10mA to 300mA
1.2
1.2
-1.5
300
350
-
-0.5
-0.5
-
-
-
-
420
150
-
-
2.7
3.3
1.5
-
600
300
0.5
0.5
V
V
%
mA
mA
mV
%/V
%
Output Voltage Noise (Note 6)
10Hz < f < 100kHz, I OUT = 10mA
C OUT = 2.2 μ F
C OUT = 10 μ F
-
-
65
60
-
-
μ V RMS
μ V RMS
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
VIN_VLDO > 3.0V
VIN_VLDO > 3.6V
I OUT = 10mA
VIN = 3.6V
I OUT = 300mA
I OUT = 10mA, VIN_LDO = 3.0-5.5V
I OUT = 10mA to 300mA
1.2
1.2
-1.5
300
350
-
-0.5
-0.5
-
-
-
-
420
150
-
-
2.7
3.3
1.5
-
600
300
0.5
0.5
V
V
%
mA
mA
mV
%/V
%
Output Voltage Noise (Note 6)
10Hz < f < 100kHz, I OUT = 10mA
C OUT = 2.2 μ F
C OUT = 10 μ F
-
-
30
20
-
-
μ V RMS
μ V RMS
5
FN9196.0
December 21, 2005
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