参数资料
型号: ISL8033AIRZ
厂商: Intersil
文件页数: 6/18页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 3A DL 24QFN
标准包装: 75
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.8 V ~ 6 V
输入电压: 2.85 V ~ 6 V
PWM 型: 电流模式
频率 - 开关: 2.5MHz
电流 - 输出: 3A
同步整流器:
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
包装: 管件
供应商设备封装: 24-QFN(4x4)
ISL8033, ISL8033A
Absolute Maximum Ratings (Reference to SGND)
VIN1,VIN2, VDD. . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V (DC) or 7V (20ms)
LX1, LX2 . . . . . . . . . . . . . . . . . . .-1.5V (100ns)/-0.3V (DC) to 6.5V (DC) or 7V (20ms)
EN1, EN2, PG1, PG2, SYNC, ISET . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
FB1, FB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
NC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
ESD Ratings
Human Body Model (Tested per JESD22-A114) . . . . . . . . . . . . . . . . . 4kV
Charged Device Model (Tested per JESD22-C101E). . . . . . . . . . . . . . 2kV
Machine Model (Tested per JESD22-A115). . . . . . . . . . . . . . . . . . . .0.3kV
Latch Up (Tested per JESD-78A; Class 2, Level A) . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical) θ JA (°C/W) θ JC (°C/W)
4x4 QFN Package (Notes 4, 5) . . . . . . . . 36 2
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +150°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.85V to 6V
Load Current Range per Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 3A
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°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
Brief TB379.
5. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Unless otherwise noted, the typical specifications are measured at the following conditions:
T A = -40°C to +85°C, V IN = 3.6V, EN1 = EN2 = VDD, L = 1.5μH, C1 = C2 = C4 = 2x22μF, I OUT1 = I OUT2 = 0A to 3A. 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 7)
TYP
(Note 7)
UNITS
INPUT SUPPLY
VIN Undervoltage Lockout Threshold
V UVLO
Rising
Hysteresis
50
2.5
100
2.85
V
mV
Quiescent Supply Current
I VDD
SYNC = VDD, EN1 = EN2 = VDD,
F S = 1MHz, no load at the output
SYNC = VDD, EN1 = EN2 = VDD,
15
30
40
70
mA
mA
F S = 2.5MHz, no load at the output
Shutdown Supply Current
I SD
VDD = 6V, EN1 = EN2 = SGND
8
20
μA
OUTPUT REGULATION
FB1, FB2 Regulation Voltage
FB1, FB2 Bias Current
Load Regulation
Line Regulation
V FB
I FB
VFB = 0.75V
SYNC = VDD, output load from 0A to 3A
VIN = VO + 0.5V to 6V (minimal 2.85V)
0.790
0.8
0.1
2
0.1
0.810
V
μA
mV/A
%/V
Soft-Start Ramp Time Cycle
COMPENSATION
Error Amplifier Trans-Conductance
1.5
20
ms
μA/V
Trans-Resistance
RT
0.18
0.2
0.22
Ω
OVERCURRENT PROTECTION
Dynamic Current Limit ON-time
Dynamic Current Limit OFF-time
6
t OCON
t OCOFF
17
8
Clock pulses
SS cycle
FN6854.2
March 24, 2011
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