TPS771_TI 具有使能和复位延迟功能的 150mA、10V、低压降稳压器

TPS771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：具有使能和复位延迟功能的 150mA、10V、低压降稳压器
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TPS771的产品详情：

The TPS771xx and TPS772xx are low-dropout regulators with integrated power-on reset and power good (PG) function respectively. These devices are capable of supplying 150 mA of output current with a dropout of 115 mV (TPS77133, TPS77233). Quiescent current is 92 uA at full load dropping down to 1 uA when device is disabled. These devices are optimized to be stable with a wide range of output capacitors including low ESR ceramic (10uF) or low capacitance (1uF) tantalum capacitors. These devices have extremely low noise output performance (55 uV_rms) without using any added filter capacitors. TPS771xx and TPS772xx are designed to have fast transient response for larger load current changes.

The TPS771xx or TPS772xx is offered in 1.5 V, 1.8-V, 2.7-V, 2.8-V, 3.3-V, and 5.0 V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5.5 V). Output voltage tolerance is 2% over line, load, and temperature ranges. The TPS771xx and TPS772xx families are available in 8-pin MSOP (DGK) packages.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 115 mV at an output current of 150 mA for 3.3 volt option) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 92 uA over the full range of output current, 0 mA to 150 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when the EN\ pin is connected to a low-level input voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable) shuts down the regulator, reducing the quiescent current to less than 1 uA at T_J = 25°C.

The TPS771xx features an integrated power-on reset, commonly used as a supply voltage supervisor (SVS) or reset output voltage. The RESET\ output of the TPS771xx initiates a reset in DSP, microcomputer or microprocessor systems at power up and in the event of an undervoltage condition. An internal comparator in the TPS771xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When OUTreaches 95% of its regulated voltage, RESET\ will go to a high-impedance state after a 220 ms delay. RESET\ will go to low-impedance state when OUTis pulled below 95% (i.e. over load condition) of its regulated voltage.

For the TPS772xx, the power good terminal (PG) is an active high output, which can be used to implement a power-on reset or a low-battery indicator. An internal comparator in the TPS772xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When OUTfalls below 82% of its regulated voltage, PG will go to a low-impedance state. PG will go to a high-impedance state when OUT is above 82% of its regulated voltage.

TPS771的优势和特性：

Open Drain Power-On Reset With 220-ms Delay (TPS771xx)
Open Drain Power-Good (PG) Status Output (TPS772xx)
150-mA Low-Dropout Voltage Regulator
Available in 1.5-V, 1.8-V, 2.7-V, 2.8-V, 3.3-V, 5.0-V Fixed Output and Adjustable Versions
Dropout Voltage Typically 115 mV at 150 mA (TPS77133, TPS77233)
Ultralow 92-uA Quiescent Current (Typ)
8-Pin MSOP (DGK) Package
Low Noise (55 uVrms) Without External Filter (Bypass) Capacitor (TPS77118, TPS77218)
2% Tolerance Over Specified Conditions for Fixed-Output Versions
Fast Transient Response
Thermal Shutdown Protection

TPS771的参数（英文）：

Output options
Adjustable Output, Fixed Output
Iout (Max) (A)
0.15
Vin (Max) (V)
10
Vin (Min) (V)
2.7
Vout (Max) (V)
5.5
Vout (Min) (V)
1.5
Fixed output options (V)
1.5, 1.8, 2.7, 2.8, 3.3, 5
Noise (uVrms)
55
Iq (Typ) (mA)
0.09
Thermal resistance θJA (°C/W)
243
Rating
Catalog
Load capacitance (Min) (μF)
1
Regulated outputs (#)
1
Features
Enable, Power good
Accuracy (%)
2
PSRR @ 100 KHz (dB)
26
Dropout voltage (Vdo) (Typ) (mV)
75
Operating temperature range (C)
-40 to 125

TPS771具体的完整产品型号参数及价格（美元）：

TPS771的完整型号有：TPS77101DGK、TPS77101DGKR、TPS77115DGK、TPS77115DGKR、TPS77118DGK、TPS77128DGK、TPS77133DGK、TPS77133DGKR、TPS77150DGK、TPS77150DGKR，以下是这些产品的关键参数及官网采购报价：

TPS77101DGK，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS77101DGK的批量USD价格：.82（1000+）

TPS77101DGKR，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS77101DGKR的批量USD价格：.689（1000+）

TPS77115DGK，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS77115DGK的批量USD价格：.986（1000+）

TPS77115DGKR，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS77115DGKR的批量USD价格：.828（1000+）

TPS77118DGK，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS77118DGK的批量USD价格：.828（1000+）

TPS77128DGK，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS77128DGK的批量USD价格：.828（1000+）

TPS77133DGK，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAUAG，TI官网TPS77133DGK的批量USD价格：.82（1000+）

TPS77133DGKR，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAUAG，TI官网TPS77133DGKR的批量USD价格：.689（1000+）

TPS77150DGK，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS77150DGK的批量USD价格：.986（1000+）

TPS77150DGKR，工作温度：-40 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS77150DGKR的批量USD价格：.828（1000+）

TPS771的评估套件：

TPS771的电路图解：

TPS771的评估套件：