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参数资料
| 型号： | ISL8024IRTAJZ-T7A |
| 厂商： | Intersil |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 4A 16TQFN |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 5.5 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 490kHz ~ 4.2MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 其它名称： | ISL8024IRTAJZ-T7ADKR |
ISL8023, ISL8024
Absolute Maximum Ratings (Reference to GND)
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V (DC) or 7V (20ms)
EN, FS, PG, SYNC, VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -3V (100ns)/(DC) to 6.5V (DC)
COMP, SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
Recommended Operating Conditions
Thermal Information
Thermal Resistance θ JA (°C/W) θ JC (°C/W)
16 LD TQFN Package (Notes 4, 5) . . . . . . . 45 6.5
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 4A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. 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
5. θ JC , “case temperature” location is at the center of the exposed metal pad on the package underside.
Electrical Specifications
Unless otherwise noted, all parameter limits are established over the recommended operating conditions and
the typical specification are measured at the following conditions: T A = -40°C to +85°C, V IN = 3.6V, EN = V IN , unless otherwise noted. Typical values are
at T A = +25°C. Boldface limits apply over the operating temperature range, -40°C to +85°C
MIN
MAX
PARAMETER
SYMBOL
TEST CONDITIONS
(Note 6)
TYP
(Note 6)
UNITS
INPUT SUPPLY
V IN Undervoltage Lockout Threshold
Quiescent Supply Current
V UVLO
I VIN
Rising, no load
Falling, no load
SYNC = GND, no load at the output
SYNC = GND, no load at the output and no
2.2
2.5
2.4
50
50
2.7
60
V
V
μA
μA
switches switching
SYNC = V IN , F S = 1MHz, no load at the output
8
15
mA
Shutdown Supply Current
I SD
SYNC = GND, V IN = 5.5V, EN = low
5
7
μA
OUTPUT REGULATION
Reference Voltage - ISL8023IRZ, ISL8024IRZ
VFB Bias Current - ISL8023IRZ, ISL8024IRZ
Line Regulation
Soft-Start Ramp Time Cycle
V REF
I VFB
VFB = 0.75V
V IN = V O + 0.5V to 5.5V (minimal 2.7V)
SS = SGND
0.595
0.600
0.01
0.2
1
0.605
V
μA
%/V
ms
Soft-Start Charging Current
I SS
V SS = 0.1V
1.2
1.6
2.0
μA
OVERCURRENT PROTECTION
Current Limit Blanking Time
Overcurrent and Auto Restart Period
t OCON
t OCOFF
17
8
Clock
pulses
SS cycle
Positive Peak Current Limit
Peak Skip Limit
I PLIMIT
I SKIP
4A application
3A application
4A application (test at 3.6V)
3A application (test at 3.6V)
5.2
3.9
0.9
0.65
6.5
4.8
1.2
0.9
7.8
5.9
1.5
1.15
A
A
A
A
Zero Cross Threshold
-200
200
mA
Negative Current Limit
I NLIMIT
-3.0
-2.4
-1.8
A
6
FN7812.3
March 24, 2014
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