- 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：军用级 1A 5V 可调节输出线性稳压器/LDO
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The LM2940 positive voltage regulator features the ability to source 1A of output current with a dropout voltage of typically 0.5V and a maximum of 1V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3V. The quiescent current with 1A of output current and an input-output differential of 5V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3V).
Designed also for vehicular applications, the LM2940 and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940 cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.
- Available with Radiation Ensure
- ELDRS Free 100 krad(Si)
- Dropout Voltage Typically 0.5V @IO = 1A
- Output Current in Excess of 1A
- Output Voltage Trimmed Before Assembly
- Reverse Battery Protection
- Internal Short Circuit Current Limit
- Mirror Image Insertion Protection
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- Output options
- Fixed Output
- Iout (Max) (A)
- 1
- Vin (Max) (V)
- 26
- Vin (Min) (V)
- 6
- Vout (Max) (V)
- 5
- Vout (Min) (V)
- 5
- Fixed output options (V)
- 5
- Noise (uVrms)
- 150
- Iq (Typ) (mA)
- 10
- Thermal resistance θJA (°C/W)
- 136
- Rating
- Military
- Load capacitance (Min) (μF)
- 22
- Regulated outputs (#)
- 1
- Features
- —
- Accuracy (%)
- 5
- PSRR @ 100 KHz (dB)
- 50
- Dropout voltage (Vdo) (Typ) (mV)
- 500
- Operating temperature range (C)
- -55 to 125
LM2940QML的完整型号有：5962-8958703XA、LM2940-5.0-MW8、LM2940GW5.0/883，以下是这些产品的关键参数及官网采购报价：
5962-8958703XA，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5962-8958703XA的批量USD价格：109.233（1000+）
LM2940-5.0-MW8，工作温度：-55 to 125，封装： (YS)-0，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：Call TI，TI官网LM2940-5.0-MW8的批量USD价格：8.57（1000+）
LM2940GW5.0/883，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LM2940GW5.0/883的批量USD价格：109.233（1000+）
5962-8958703XA，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5962-8958703XA的批量USD价格：109.233（1000+）
LM2940-5.0-MW8，工作温度：-55 to 125，封装： (YS)-0，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：Call TI，TI官网LM2940-5.0-MW8的批量USD价格：8.57（1000+）
LM2940GW5.0/883，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LM2940GW5.0/883的批量USD价格：109.233（1000+）
