- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：线性和低压降 (LDO) 稳压器
- 功能描述：可调节微功耗低压降稳压器
- 点击这里打开及下载LP2953QML的技术文档资料
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The LP2953A is a micropower voltage regulator with very low quiescent current (130 μA typical at 1 mA load) and very low dropout voltage (typ. 60 mV at light load and 470 mV at 250 mA load current). It is ideally suited for battery-powered systems. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life.
The LP2953A retains all the desirable characteristics of the LP2951, but offers increased output current, additional features, and an improved shutdown function.
The internal crowbar pulls the output down quickly when the shutdown is activated.
The error flag goes low if the output voltage drops out of regulation.
Reverse battery protection is provided.
The internal voltage reference is made available for external use, providing a low-T.C. reference with very good line and load regulation.
- Output Voltage Adjusts from 1.23V to 29V
- Ensured 250 mA Output Current
- Extremely Low Quiescent Current
- Low Dropout Voltage
- Extremely Tight Line and Load Regulation
- Very Low Temperature Coefficient
- Current and Thermal Limiting
- Reverse Battery Protection
- 50 mA (Typical) Output Pulldown Crowbar
- Auxiliary Comparator Included with CMOS/TTL Compatible Output Levels. Can be used for Fault Detection, Low Input Line Detection, etc.
All trademarks are the property of their respective owners.
- Output options
- Adjustable Output, Fixed Output
- Iout (Max) (A)
- 0.25
- Vin (Max) (V)
- 30
- Vin (Min) (V)
- -20
- Vout (Max) (V)
- 29
- Vout (Min) (V)
- 1.23
- Fixed output options (V)
- 3.3, 5
- Noise (uVrms)
- 80
- Iq (Typ) (mA)
- 0.13
- Thermal resistance θJA (°C/W)
- 42
- Rating
- Military
- Load capacitance (Min) (μF)
- 2.2
- Regulated outputs (#)
- 1
- Features
- Enable, Output discharge, Power good
- Accuracy (%)
- 3
- PSRR @ 100 KHz (dB)
- 32
- Dropout voltage (Vdo) (Typ) (mV)
- 470
- Operating temperature range (C)
- -55 to 125
LP2953QML的完整型号有：5962-9233602QXA、LP2953AMGW/883，以下是这些产品的关键参数及官网采购报价：
5962-9233602QXA，工作温度：-55 to 125，封装：CFP (NAC)-16，包装数量MPQ：42个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SNPB，TI官网5962-9233602QXA的批量USD价格：75.821（1000+）
LP2953AMGW/883，工作温度：-55 to 125，封装：CFP (NAC)-16，包装数量MPQ：42个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SNPB，TI官网LP2953AMGW/883的批量USD价格：75.821（1000+）
5962-9233602QXA，工作温度：-55 to 125，封装：CFP (NAC)-16，包装数量MPQ：42个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SNPB，TI官网5962-9233602QXA的批量USD价格：75.821（1000+）
LP2953AMGW/883，工作温度：-55 to 125，封装：CFP (NAC)-16，包装数量MPQ：42个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SNPB，TI官网LP2953AMGW/883的批量USD价格：75.821（1000+）
