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参数资料
| 型号： | MAX1726EUK50+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V 20MA SOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 最高 12V |
| 电压 - 压降（标准）： | 0.3V @ 20mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 20mA（最小） |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
| 其它名称： | MAX1726EUK50+T-ND MAX1726EUK50+TTR |
MAX1725/MAX1726
12V, Ultra-Low I Q , Low-Dropout
Linear Regulators
The error amplifier compares 1.245V to the selected
feedback voltage and amplifies the difference. If the
feedback voltage is lower than 1.245V, the pass-tran-
sistor gate is pulled lower, allowing more current to
pass, and thus increasing the output voltage. If the
feedback voltage is higher than 1.245V, the pass-tran-
sistor gate is driven higher, allowing less current to
pass to the output. The output voltage is fed back
through either an internal resistor voltage-divider con-
nected to OUT (MAX1726) or an external resistor net-
work connected to FB (MAX1725). Additional features
include an output current limiter, reverse-battery protec-
tion, a thermal sensor, and shutdown logic.
INPUT
2.5V TO 12V
OUTPUT
1.5V TO 5V
Internal P-Channel Pass Transistor
The MAX1725/MAX1726 feature a p-channel MOSFET
C IN
1 μ F
IN
MAX1725
OUT
R1
C OUT
1 μ F
pass transistor. This provides advantages over similar
designs using PNP pass transistors, including longer
battery life. The p-channel MOSFET requires no base
drive, which reduces quiescent current considerably.
PNP-based regulators waste considerable current in
OFF
ON
SHDN
GND
FB
R2
1.2M ?
dropout when the pass transistor saturates; they also
use high base-drive currents under large loads. The
MAX1725/MAX1726 do not suffer from these prob-
lems, and consume only 2μA of quiescent current
throughout their load range (see the Typical Operating
Figure 1. Typical Application Circuit
IN
MAX1725
MAX1726
Characteristics).
OUT
BIAS
CIRCUITRY
THERMAL
SHUTDOWN
1.245V
(MAX1726 ONLY)
SHDN
FB (MAX1725 ONLY)
GND
Figure 2. Functional Diagram
Maxim Integrated
5
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相关代理商/技术参数 |
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| MAX1727EUG | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1729EUB | 功能描述:直流/直流开关转换器 ECB & LCD Display Bias Supply 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 |
| MAX1729EUB-T | 功能描述:直流/直流开关转换器 ECB & LCD Display Bias Supply 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 |
| MAX172ACNG | 功能描述:模数转换器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX172ACNG+ | 功能描述:模数转换器 - ADC 12-Bit 100ksps 5.25V- Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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