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参数资料
| 型号： | MAX618EEE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.5A 16QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 28V |
| 输入电压： | 3 V ~ 28 V |
| PWM 型： | 混合物 |
| 频率 - 开关： | 250kHz |
| 电流 - 输出： | 500mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-QSOP |
28V, PWM, Step-Up DC-DC Converter
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +30V
LX to GND ..............................................................-0.3V to +30V
VL to GND ................................................................-0.3V to +6V
SHDN , COMP, FB to GND ............................-0.3V to (VL + 0.3V)
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Soldering Temperature (reflow) .......................................+260°C
PGND to GND.....................................................................±0.3V
Continuous Power Dissipation (T A = +70°C) (Note 1)
16-Pin QSOP (derate 15mW/°C above +70°C)...................1W
Note 1: With part mounted on 0.9 in. 2 of copper.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN = +6V, PGND = GND, C VL = 4.7μF, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
Input Voltage
Supply Current, No Load
Supply Current, Full Load, VL
Connected to IN
Supply Current, Full Load
Shutdown Supply Current
VL Output Voltage
VL Load Regulation
SYMBOL
V IN
I IN
I IN
I IN
I IN
V VL
Δ V VL
CONDITIONS
V IN = 3V to 28V, V FB = 1.6V, SHDN = VL
V IN = 3V to 5.5V, V FB = 1.4V, SHDN = VL = IN
V IN = 3.4V to 28V, V FB = 1.4V, SHDN = VL,
V VL < V IN
V IN = 28V, V FB = 1.6V, SHDN = GND
V IN = 3.5V or 28V, no load
I LOAD = 0 to 2mA, V FB = 1.6V
MIN
3
2.9
TYP
500
5
2.5
3
3.05
25
MAX
28
700
6.5
3.5
8
3.2
40
UNITS
V
μA
mA
mA
μA
V
mV
VL Undervoltage Lockout
FB Set Voltage
V FB
Rising edge, 1% hysteresis
2.58
1.47
2.7
1.5
2.8
1.53
V
V
FB Input Bias Current
Line Regulation
Load Regulation
LX Voltage
I FB
Δ V OUT
Δ V OUT
V LX
V FB = 1.6V
V IN = 3V to 6V, V OUT = 12V
V OUT = 12V, I LOAD = 10mA to 500mA
1
0.01
0.2
50
0.08
28
nA
%/V
%
V
LX Switch Current Limit
I LXON
PWM mode
1.7
2.2
2.7
A
Idle Mode Current-Limit
Threshold
LX On-Resistance
R LXON
0.25
0.35
0.3
0.45
0.6
A
Ω
LX Leakage Current
I LXOFF
V LX = 28V
0.02
10
μA
COMP Maximum Output Current
COMP Current vs. FB Voltage
Transconductance
I COMP
FB = GND
Δ FB = 0.1V
100
0.8
200
1
μA
mmho
SHDN Input Logic Low
SHDN Input Logic High
Shutdown Input Current
V IL
V IH
SHDN = GND or VL
2.0
0.8
1
V
V
μA
Switching Frequency
Maximum Duty Cycle
f
DC
200
90
250
95
300
kHz
%
2
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