参数资料
| 型号： | ISL8011IRZ-T |
| 厂商： | Intersil |
| 文件页数： | 2/10页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1.2A 10DFN |
| 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： | 1.2A |
| 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： | 10-VFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
ISL8011
Absolute Maximum Ratings (Reference to SGND)
Thermal Information
Supply Voltage (PVIN, V CC ) . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
Thermal Resistance (Notes 1, 2)
θ JA (°C/W)
θ JC ( °C /W)
EN, MODE, PHASE, POR . . . . . . . . . . . . . . . . . . -0.3V to V CC +0.3V
FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
PGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
Recommended Operating Conditions
PVIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
10 Ld 3x3 DFN Package . . . . . . . . . . . 48 5
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 1.2A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85°C
AUTION: 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. 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. θ JC , “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
T A = +25°C, V PVIN = V VCC = 3.6V, EN = V CC , L = 1.8μH, C 1 = 10μF, C 2 = 10μF, I OUT = 0A (see “Typical
Applications” on page 6); Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY
V CC Undervoltage Lockout Threshold
Quiescent Supply Current
Shut Down Supply Current
V UVLO
I PVIN
I SD
Rising
Falling
No load at the output
V CC = PVIN = 5.5V, EN = low
-
2.2
-
-
2.5
2.4
5
0.1
2.7
-
8
2
V
V
mA
μA
OUTPUT REGULATION
FB Regulation Voltage
FB Bias Current
Output Voltage Accuracy
V FB
I FB
T A = 0°C to +85°C
T A = -40°C to +85°C
FB = 0.75V
PVIN = V O + 0.5V to 5.5V, I O = 0A to 1.2A,
0.784
0.78
-
-3
0.8
0.8
0.1
-
0.816
0.82
-
3
V
V
μA
%
T A = -40°C to +85°C
Line Regulation
Maximum Output Current
PVIN = V O + 0.5V to 5.5V (minimal 2.7V)
-
1.2
0.2
-
-
-
%/V
A
COMPENSATION
Error Amplifier Trans-conductance
Adjustable version, design info only
-
20
-
μA/V
PHASE
P-Channel MOSFET On-Resistance
N-Channel MOSFET On-Resistance
P-Channel MOSFET Peak Current Limit
PHASE Maximum Duty Cycle
I PK
PVIN = 3.6V, I O = 200mA
PVIN = 2.7V, I O = 200mA
PVIN = 3.6V, I O = 200mA
PVIN = 2.7V, I O = 200mA
-
-
-
-
1.5
-
0.12
0.16
0.11
0.15
2.1
100
0.22
0.27
0.22
0.27
2.6
-
Ω
Ω
Ω
Ω
A
%
PWM Switching Frequency
PHASE Minimum On Time
Soft Start-Up Time
f S
T A = -40°C to +85°C
1.35
-
-
1.6
-
1.1
1.75
140
-
MHz
ns
ms
2
FN9254.2
August 4, 2009
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