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参数资料
| 型号： | ISL97646IRZ-EVALZ |
| 厂商： | Intersil |
| 文件页数： | 3/15页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ISL97646 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，LDO 步升 |
| 输出及类型： | 2，非隔离 |
| 电流 - 输出： | 350mA |
| 输入电压： | 2.7 ~ 5.5 V |
| 稳压器拓扑结构： | 升压 |
| 频率 - 开关： | 650kHz，1.2MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL97646 |
ISL97646
Absolute Maximum Ratings
Thermal Information
Lx to GND, AGND and PGND . . . . . . . . . . . . . . . . . . . . -0.5 to +25V
Thermal Resistance
θ JA (°C/W)
θ JC (°C/W)
VDD2, OUT, NEG and POS
to GND, AGND and PGND . . . . . . . . . . . . . . . . . . . . . -0.5 to +25V
VDD1, VGH and VGH_M
to GND, AGND and PGND . . . . . . . . . . . . . . . . . . . . . -0.5 to +32V
Differential Voltage Between POS and NEG . . . . . . . . . . . . . . . ±6V
Voltage Between GND, AGND and PGND . . . . . . . . . . . . . . . ±0.5V
All Other Pins to GND, AGND and PGND . . . . . . . . . . -0.5 to +6.5V
Input, Output, or I/O Voltage . . . . . . . . . . . GND -0.3V to VIN + 0.3V
Recommended Operating Conditions
4x4 QFN Package (Notes 1, 2) . . . . . . 39 2.5
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Maximum Continuous Junction Temperature . . . . . . . . . . . +125°C
Power Dissipation
T A ≤ + 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.44W
T A = +70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.34W
T A = +85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.98W
T A = +100°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.61W
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
Input Voltage Range, VS . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Boost Output Voltage Range, AVDD . . . . . . . . . . . . . . . . . 8V to 20V
Input Capacitance, CIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22μF
Boost Inductor, L1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3μH to 10μH
LDO Output Capacitance. . . . . . . . . . . . . . . . . . . . . . .2.2μF to 10μF
Output Capacitance, COUT . . . . . . . . . . . . . . . . . . . . . . . . . . 2x22μF
Operating Ambient Temperature Range . . . . . . . . . .-40°C to +85°C
Operating Junction Temperature . . . . . . . . . . . . . . .-40°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:
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. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
V IN1 = V IN2 = ENABLE = 5V, VDD1 = VDD2 = 14V, VGH = 25V, AVDD = 10V, T A = -40°C to +85°C
Unless Otherwise Noted.
SYMBOL
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
GENERAL
V S
V IN1 , V IN2 Input Voltage Range
See separate LDO specifications on
2.7
5.0
5.5
V
page 4
I S_DIS
Sum of V IN1 , V IN2 Supply Currents
ENABLE = 0V
0.2
2
μA
when Disabled
I S
Sum of V IN1 , V IN2 Supply Currents
ENABLE = 5V, LX not switching, LDO
1
mA
not loaded
UVLO
OT R
Undervoltage Lockout Threshold
Thermal Shutdown Temperature
V IN2 Rising
V IN2 Falling
Temperature Rising
2.3
2.2
2.45
2.35
140
2.6
2.5
V
V
°C
OT F
Temperature Falling
100
°C
LOGIC INPUT CHARACTERISTICS - ENABLE, VFLK, FREQ, VDPM
V IL
V IH
Low Voltage Threshold
High Voltage Threshold
2.2
0.8
V
V
R IL
Pull-Down Resistor
Enabled, Input at V IN2
150
250
400
k Ω
STEP-UP SWITCHING REGULATOR
A VDD
Δ A VDD / Δ I OUT
Output Voltage Range
Load Regulation
50mA < ILOAD < 250mA
VIN*1.25
0.2
20
V
%
Δ A VDD / Δ V IN
ACC AVDD
Line Regulation
Overall Accuracy (Line, Load,
ILOAD = 150mA, 3.0 < V IN1 < 5.5V
10mA < ILOAD < 300mA, 3.0 < V IN1
-3
0.15
0.25
3
%/V
%
Temperature)
3
< 5.5V, 0°C < T A < +85°C
FN6265.1
December 14, 2007
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