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| 型号： | MAX17067EUA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.3A 8UMAX |
| 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： | 1.25 V ~ 18 V |
| 输入电压： | 2.6 V ~ 4 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 640kHz，1.2MHz |
| 电流 - 输出： | 300mA |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-uMAX |
Low-Noise Step-Up DC-DC Converter
ABSOLUTE MAXIMUM RATINGS
LX to GND ..............................................................-0.3V to +22V
SHDN , FREQ to GND ............................................-0.3V to +7.5V
IN to GND (Note 1) ...................................................-0.3V to +6V
SS, COMP, FB to GND ................................-0.3V to (V IN + 0.3V)
RMS LX Pin Current ..............................................................1.2A
Continuous Power Dissipation (T A = +70°C)
8-Pin μMAX (derate 4.1mW/°C above +70°C) ............330mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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 = SHDN = 3V, FREQ = 3V, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.) (Note 2)
PARAMETER
Input Supply Range
SYMBOL
V IN
V OUT < 18V
CONDITIONS
MIN
2.6
TYP
MAX
4.0
UNITS
V
Output Voltage
18
V
Input Supply Clamp Voltage
Use external limiting resistor; R IN = 100 ,
V IN = 10V (Note 3)
6.05
6.40
6.60
V
V IN Undervoltage Lockout
Quiescent Current
Shutdown Supply Current
UVLO
I IN
I IN
V IN rising, typical hysteresis is 50mV, LX
remains off below this level
V FB = 1.3V, not switching
V FB = 1.0V, switching
SHDN = GND, T A = +25°C
SHDN = GND, T A = +85°C
2.30
2.45
0.3
1.5
30
30
2.57
0.6
2.5
60
V
mA
μA
ERROR AMPLIFIER
Feedback Voltage
FB Input Bias Current
Feedback-Voltage Line
Regulation
Transconductance
V FB
I FB
g m
Level to produce V COMP = 1.24V
V FB = 1.24V
Level to produce V COMP = 1.24V,
2.6V < V IN < 5.5V
I = 5 μA
1.23
50
100
1.24
125
0.05
240
1.25
200
0.15
440
V
nA
%/V
μS
Voltage Gain
A V
3800
V/V
OSCILLATOR
Frequency
Maximum Duty Cycle
f OSC
DC
FREQ = GND
FREQ = IN
FREQ = GND, FREQ = IN
500
1000
89
640
1200
92
780
1400
95
kHz
%
n-CHANNEL SWITCH
Current Limit
On-Resistance
I LIM
R ON
V FB = 1V, duty cycle = 68% (Note 4)
1.8
2.4
150
3.4
275
A
m
Leakage Current
Current-Sense Transresistance
I LXOFF
R CS
V LX = 20V
0.2
10
0.3
20
0.4
μA
V/A
SOFT-START
Reset Switch Resistance
100
Charge Current
V SS = 1.2V
2.5
4.5
6.5
μA
2
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