参数资料
型号: MAX1730EUB
厂商: Maxim Integrated Products
文件页数: 7/8页
文件大小: 0K
描述: IC REG BUCK SWITCHED CAP 10UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
类型: 降压(降压),切换电容(充电泵)
输出类型: 固定
输出数: 1
输出电压: 1.8V,1.9V
输入电压: 2.7 V ~ 5.5 V
频率 - 开关: 2kHz
电流 - 输出: 50mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 管件
供应商设备封装: 10-µMAX
50mA Regulated Step-Down Charge Pump
for 1.8V or 1.9V Logic
V IN
V OUT = V IN
C IN
NOTE: SWITCH STATES SET FOR STAGE 1.
ALL SWITCHES REVERSE STATE FOR STAGE 2.
Figure 1. 1:1 Capacitor Configuration
C1
C2
C OUT
VIN
C IN
C1
C2
VIN
C IN
C1
C2
V OUT = V IN
2
3
C OUT
C OUT
V OUT = 1 V IN
2
NOTE: SWITCH STATES SET FOR STAGE 1.
ALL SWITCHES REVERSE STATE FOR STAGE 2.
Figure 2. 3:2 Capacitor Configuration
To maximize efficiency, the MAX1730 automatically
switches between charge-pump configurations (Figures
1, 2, and 3). Efficiency is greatest when the IN/OUT volt-
age ratio is close to the voltage ratio of the selected
capacitor configuration and decreases for output volt-
ages lower than the divider ratio. To choose between
configurations, the MAX1730 senses the input voltage
and the output voltage. The MAX1730 uses a control
scheme with hysteresis to prevent oscillation between
capacitor configurations.
NOTE: SWITCH STATES SET FOR STAGE 1.
ALL SWITCHES REVERSE STATE FOR STAGE 2.
Figure 3. 2:1 Capacitor Configuration
Applications Information
Setting the Output Voltage
For an output voltage of 1.8V, connect FB to GND. For
an output voltage of 1.9V, connect FB to IN.
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7
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MAX1730EUB+ 功能描述:电荷泵 50mA Regulated Step-Down RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube
MAX1730EUB+T 功能描述:电荷泵 50mA Regulated Step-Down RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube
MAX1730EUB-T 功能描述:电荷泵 50mA Regulated Step-Down RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube
MAX1733EUK 制造商:Maxim Integrated Products 功能描述:5 PIN COUNT SOT PACKAGE TYPE - Bulk
MAX1733EUK+ 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP DOWN 5PIN SOT-23 - Rail/Tube