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参数资料
| 型号： | ISL9108IRZ-T |
| 厂商： | Intersil |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1.5A 8DFN |
| 标准包装： | 6,000 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5.5 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.6MHz |
| 电流 - 输出： | 1.5A |
| 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： | 8-VFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-DFN（2x3） |
ISL9107, ISL9108
Absolute Maximum Ratings (Reference to GND)
Thermal Information
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
Thermal Resistance (Notes 2, 3)
θ JA (°C/W)
θ JC (°C/W)
EN, MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
PG, RSI (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
SW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to 6.5V
FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
2x3 DFN Package . . . . . . . . . . . . . . 78 11
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Load Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 1.5A
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:
1. For ISL9107 only.
2. 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.
3. θ JC , “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and
the typical specifications are measured at the following conditions: T A = +25°C, V IN = V EN = 3.6V, L = 2.2μH,
C 1 = 10μF, C 2 = 10μF, I OUT = 0A (see the Typical Application Circuit on page 7).
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY
Undervoltage Lockout Threshold
Quiescent Supply Current
Shut Down Supply Current
V UVLO
I VIN
I SD
Rising
Falling
MODE = V IN , no load at the output
MODE = GND, no load at the output
V IN = 5.5V, EN = LOW
-
2.2
-
-
-
2.5
2.4
17
5
0.05
2.7
-
30
8
2
V
V
μA
mA
μ A
OUTPUT REGULATION
FB Regulation Voltage
FB Bias Current
Line Regulation
V FB
I FB
T A = 0°C to +85°C
T A = -40°C to +85°C
VFB = 0.75V
V IN = V O + 0.5V to 5.5V (minimal 2.7V)
0.784
0.78
-
-
0.8
0.8
0.1
0.2
0.816
0.82
-
-
V
V
μA
%/V
COMPENSATION
Error Amplifier Trans-conductance
Design info only
-
20
-
μA/V
SW
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
V IN = 3.6V, I O = 200mA
V IN = 2.7V, I O = 200mA
V IN = 3.6V, I O = 200mA
-
-
-
0.12
0.16
0.11
0.22
0.27
0.22
Ω
Ω
Ω
N-Channel Bleeding MOSFET ON-Resistance
V IN = 2.7V, I O = 200mA
-
-
0.15
90
0.27
-
Ω
Ω
P-Channel MOSFET Peak Current Limit
Maximum Duty Cycle
PWM Switching Frequency
SW Minimum On-Time
Soft Start-Up Time
I PK
f S
V IN = 5.5V
T A = -40°C to +85°C
MODE = LOW (forced PWM mode)
1.8
-
1.35
-
-
2.1
100
1.6
-
1.1
2.6
-
1.75
100
-
A
%
MHz
ns
ms
2
FN6612.0
December 21, 2007
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