LM309_TI 采用气密封装的 1A 5V 输出线性稳压器/LDO

LM309的基本参数

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：采用气密封装的 1A 5V 输出线性稳压器/LDO
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LM309的产品详情：

The LM109 series are complete 5V regulators fabricated on a single silicon chip. They are designed for local regulation on digital logic cards, eliminating the distribution problems association with single-point regulation. The devices are available in two standard transistor packages. In the solid-kovar TO-5 header, it can deliver output currents in excess of 200 mA, if adequate heat sinking is provided. With the TO-3 power package, the available output current is greater than 1A.

The regulators are essentially blowout proof. Current limiting is included to limit the peak output current to a safe value. In addition, thermal shutdown is provided to keep the IC from overheating. If internal dissipation becomes too great, the regulator will shut down to prevent excessive heating.

Considerable effort was expended to make these devices easy to use and to minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response somewhat. Input bypassing is needed, however, if the regulator is located very far from the filter capacitor of the power supply. Stability is also achieved by methods that provide very good rejection of load or line transients as are usually seen with TTL logic.

Although designed primarily as a fixed-voltage regulator, the output of the LM109 series can be set to voltages above 5V, as shown. It is also possible to use the circuits as the control element in precision regulators, taking advantage of the good current-handling capability and the thermal overload protection.

LM309的优势和特性：

Specified to be compatible, worst case, with TTL and DTL
Output current in excess of 1A
Internal thermal overload protection
No external components required

LM309的参数（英文）：

Output options
Fixed Output
Iout (Max) (A)
1
Vin (Max) (V)
35
Vin (Min) (V)
7.1
Vout (Max) (V)
5
Vout (Min) (V)
5
Fixed output options (V)
5
Noise (uVrms)
40
Iq (Typ) (mA)
5.2
Thermal resistance θJA (°C/W)
35
Rating
Military
Load capacitance (Min) (μF)
0
Regulated outputs (#)
1
Features
—
Accuracy (%)
5
PSRR @ 100 KHz (dB)
64
Dropout voltage (Vdo) (Typ) (mV)
1950
Operating temperature range (C)
0 to 125

LM309具体的完整产品型号参数及价格（美元）：

LM309的完整型号有：LM309H、LM309H/NOPB、LM309K STEEL、LM309K STEEL/NOPB，以下是这些产品的关键参数及官网采购报价：

LM309H，工作温度：0 to 125，封装：TO (NDT)-3，包装数量MPQ：500个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：AU，TI官网LM309H的批量USD价格：8.738（1000+）

LM309H/NOPB，工作温度：0 to 125，封装：TO (NDT)-3，包装数量MPQ：500个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：AU，TI官网LM309H/NOPB的批量USD价格：8.738（1000+）

LM309K STEEL，工作温度：0 to 125，封装：TO-3 (NDS)-2，包装数量MPQ：50个，MSL 等级/回流焊峰值温度：Call TI，引脚镀层/焊球材料：Call TI，TI官网LM309K STEEL的批量USD价格：41.407（1000+）

LM309K STEEL/NOPB，工作温度：0 to 125，封装：TO-3 (NDS)-2，包装数量MPQ：50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LM309K STEEL/NOPB的批量USD价格：41.407（1000+）

LM309的评估套件：

LM309的电路图解：

LM309的评估套件：