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参数资料
| 型号： | MAX1947ETA25+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/11页 |
| 文件大小： | 0K |
| 描述： | IC REG BST SYNC 2.5V 0.25A 8TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 2.5V |
| 输入电压： | 0.7 V ~ 3.6 V |
| 频率 - 开关： | 最高 2MHz |
| 电流 - 输出： | 250mA |
| 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-WDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 其它名称： | MAX1947ETA25+TDKR |
Low Input/Output Voltage
Step-Up DC-DC Converter with RESET
ABSOLUTE MAXIMUM RATINGS
BATT, OUT, SHDN to GND ...................................-0.3V to +4.0V
RESET to GND..........................................-0.3V to (V OUT + 0.3V)
PGND to GND .......................................................-0.3V to +0.3V
Switch Current (I LX , I OUT , I PGND ) (Note 1) .................-1A to +1A
Continuous Power Dissipation (T A = +70 ° C)
8-Pin TDFN (derate 24.4mW/ ° C
above +70 ° C)..........................................................1951.2mW
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
Note 1: LX has internal clamp diodes to PGND and OUT. Applications that forward bias these diodes should take care not to exceed the
IC’s package power-dissipation limits.
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 BATT = 1.5V, T A = -40 ° C to +85 ° C, unless otherwise noted. Typical values are at T A = +25 ° C.) (Note 2)
PARAMETER
Minimum Startup Voltage
CONDITIONS
R LOAD = 1k Ω , T A = +25 ° C
MIN
TYP
0.8
MAX
0.95
UNITS
V
Startup-Voltage Temperature
Coefficient
-2.1
mV/ ° C
Maximum Input Operating
Voltage
Minimum Input Operating Voltage
(Note 3)
0.7
3.6
V
V
MAX1947ETA18, I LOAD = 40mA
1.74
1.8
1.86
Output Voltage
Load Regulation
MAX1947ETA25, I LOAD = 32mA
MAX1947ETA30, I LOAD = 25mA
MAX1947ETA33, I LOAD = 25mA
No load to full load
2.42
2.9
3.2
2.5
3.0
3.3
1.2
2.58
3.1
3.4
V
%
MAX1947ETA18
160
273
V BATT = 1V
MAX1947ETA25
MAX1947ETA30
130
100
214
185
Full-Load Output Current
V BATT = 1.8V
MAX1947ETA33
MAX1947ETA25
MAX1947ETA30
MAX1947ETA33
100
240
200
200
169
380
361
329
mA
Supply Current into BATT
Supply Current into OUT
LX Switch Maximum On-Time
LX Switch Minimum Off-Time
No switching
No switching
0.7
0.2
2
70
1
0.25
4
110
1.3
0.3
μA
μA
μs
μs
Maximum On-Time to Minimum
Off-Time Ratio
V OUT = 2.5V, 3.0V, 3.3V
V OUT = 1.8V
3.6
3.0
4
4
4.6
4.6
s/s
Frequency in Startup
650
kHz
2
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1947ETA30+ | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP UP 8TDFN EP - Rail/Tube 制造商:Maxim Integrated Products 功能描述:STEP-UP DC-DC CONVERTER WITH ACTIVE-LOW |
| MAX1947ETA30+T | 功能描述:直流/直流开关转换器 Step-Up w/RESET DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1947ETA30-T | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1947ETA33 | 制造商:Maxim Integrated Products 功能描述:LOW INPUT/OUTPUT VOLTAGE STEP-UP DC-DC CONVER - Rail/Tube |
| MAX1947ETA33+ | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP UP 8TDFN EP - Rail/Tube |
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