参数资料
型号: ISL6557ACBZ
厂商: Intersil
文件页数: 4/18页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 24-SOIC
标准包装: 600
PWM 型: 电压模式
输出数: 1
频率 - 最大: 250kHz
占空比: 75%
电源电压: 4.75 V ~ 5.25 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 70°C
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
包装: 管件
ISL6557A
Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7V
Input, Output, or I/O Voltage . . . . . . . . . . GND -0.3V to V CC + 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5kV
Recommended Operating Conditions
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ± 5%
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 0 o C to 70 o C
Thermal Information
Thermal Resistance (Typical, Note 1) θ JA ( o C/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .150 o C
Maximum Storage Temperature Range . . . . . . . . . -65 o C to 150 o C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300 o C
(SOIC - Lead Tips Only)
CAUTION: Stress 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 section of this specification is not implied.
NOTE:
1. θ JA is measured with the component mounted on a high effective thermal conductivity test board in free air. (See Tech Brief TB379 for details.)
Electrical Specifications
Operating Conditions: V CC = 5V, T A = 0 o C to 70 o C, Unless Otherwise Specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
INPUT SUPPLY POWER
Input Supply Current
RT = 100k Ω , EN = 5V
RT = 100k Ω , EN = 0V
5
10.5
9.2
15
mA
mA
Power-On Reset Threshold
Enable Threshold
VCC Rising
VCC Falling
EN Rising
EN Falling
4.25
3.75
1.206
1.106
4.38
3.86
1.230
1.15
4.5
4.0
1.254
1.194
V
V
V
V
Enable Hysteresis
Enable Current
EN = 3V
60
100
50
mV
nA
SYSTEM ACCURACY
System Accuracy
(Note 2)
-0.8
0.8
%VID
VID Pull Up
-40
-20
-10
μ A
VID Input Low Level
VID Input High Level (Note 3)
OSCILLATOR
2.0
0.8
V
V
Accuracy
Frequency
Adjustment Range
Sawtooth Amplitude
Duty-Cycle Range
RT = 110k Ω (±1%)
-20
80
0
250
1.33
20
1500
75
%
kHz
kHz
V
%
ERROR AMPLIFIER
Open-Loop Gain
Open-Loop Bandwidth
Slew Rate
RL = 10k Ω to ground
CL = 100pF, RL = 10k Ω to ground
CL = 100pF, RL = 10k Ω to ground
72
18
5
dB
MHz
V/ μ s
Maximum Output Voltage
RL = 10k Ω to ground
3.6
4.1
V
REMOTE-SENSE AMPLIFIER
Input Impedance
Slew Rate
Bandwidth
4
80
6
10
k Ω
V/ μ s
MHz
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