参数资料
| 型号： | ISL6455IRZ-TK |
| 厂商： | Intersil |
| 文件页数： | 4/12页 |
| 文件大小： | 0K |
| 描述： | IC REG TRPL SYNC DUAL LDO 24QFN |
| 标准包装： | 1 |
| 应用： | 转换器，FPGAs |
| 输入电压： | 3 V ~ 3.6 V |
| 输出数： | 3 |
| 输出电压： | 0.8 V ~ 2.5 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： | 剪切带 (CT) |
| 其它名称： | ISL6455IRZ-TKCT |
ISL6455, ISL6455A
Absolute Maximum Ratings (Note 1)
Supply Voltage VIN, PV CC , VIN _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) θ JA (°C/W) θ JC (°C/W)
24 Ld QFN (Note 1) . . . . . . . . . . . . . . . 42 6
Maximum Junction Temperature (Plastic Package) . -55°C to 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
(Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. θ 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 θ 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.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
V CC SUPPLY
VIN_PWM Supply Voltage Range
ISL6455
3.0
3.3
3.6
V
VIN_LDO Supply Voltage Range
ISL6455A
4.2
3.0
5.0
-
5.5
5.5
V
V
Operating Supply Current (Note 3) for ISL6455
Operating Supply Current (Note 3) for ISL6455A
Shutdown Supply Current
V IN = V IN _LDO = PV CC = 3.3V
f SW = 750kHz, C OUT = 10 μ F , I L = 0mA
V IN = V IN _LDO = PV CC = 5.0V
f SW = 750kHz, C OUT = 10 μ F , I L = 0mA
EN = EN_LDO = GND
-
-
-
2.5
3.5
5
3.1
4.5
10
mA
mA
μ A
ISL6455 and ISL6455A
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)
Thermal Shutdown Hysteresis (Note 6)
EN = EN_LDO = GND/V IN
V TR
V TF
V TR
V TF
V TR
V TF
Rising Threshold
-1.5
2.55
2.51
3.94
3.78
2.46
2.53
-
-
1.0
2.65
2.56
4.05
3.89
2.64
2.59
150
20
1.5
2.71
2.61
4.13
3.97
2.82
2.66
-
-
μ A
V
V
V
V
V
V
°C
°C
SYNCHRONOUS BUCK PWM REGULATOR
Output Voltage
FB_PWM Initial Voltage Accuracy (Note 7)
FB_PWM Line Regulation
FB_PWM Load Regulation
Peak Output Current Limit
PMOS r DS(ON)
NMOS r DS(ON)
ISL6455
ISL6455A
V REF = 0.45V, I OUT = 3mA, T A = -40°C to 85°C
I O = 3mA, V IN = PV CC = 3.0-3.6V (ISL6455)
or 4.2-5.5V (6455A)
I O = 3mA to 500mA, V IN = PV CC = 3.0-3.6V (ISL6455)
or 4.2-5.5V (ISL6455A)
I OUT = 200mA
I OUT = 200mA
0.8
0.8
-0.9
-0.5
-1.1
700mA
-
-
-
-
-
-
-
-
170
50
2.5
3.3
0.9
0.5
+1.1
1300
-
-
V
V
%
%
%
mA
m ?
m ?
4
FN9196.0
December 21, 2005
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| ISL6504A | 制造商:Intersil Corporation 功能描述: |
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