TPS77301集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TPS77301属于集成电路（IC）的线性+开关稳压器。由德州仪器制造生产的TPS77301稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

Open Drain Power-On Reset With 220-ms

Delay (TPS773xx)

Open Drain Power-Good (PG) Status

Output (TPS774xx)

250-mA Low-Dropout Voltage Regulator

Available in 1.5-V, 1.6-V (TPS77316 Only),

1.8-V, 2.7-V, 2.8-V, 3.3-V, 5.0-V Fixed Output

and Adjustable Versions

Dropout Voltage Typically 200 mV

at 250 mA (TPS77333, TPS77433)

Ultralow 92-μA Quiescent Current (Typ)

8-Pin MSOP (DGK) Package

Low Noise (55 μVrms) Without an External

Filter (Bypass) Capacitor (TPS77318,

TPS77418)

2% Tolerance Over Specified Conditions

For Fixed-Output Versions

Fast Transient Response

Thermal Shutdown Protection

See the TPS779xx Family of Devices for

Active High Enable

description

The TPS773xx and TPS774xx are low-dropout

regulators with integrated power-on reset and

power good (PG) function respectively. These

devices are capable of supplying 250 mA of output

current with a dropout of 200 mV (TPS77333,

TPS77433). Quiescent current is 92 μA at full load

dropping down to 1 μA when device is disabled.

These devices are optimized to be stable with a

wide range of output capacitors including low ESR

ceramic (10 μF) or low capacitance (1 μF)

tantalum capacitors. These devices have extremely

low noise output performance (55 μVrms)

without using any added filter capacitors.

TPS773xx and TPS774xx are designed to have

fast transient response for larger load current

changes.

The TPS773xx or TPS774xx is offered in 1.5-V, 1.6 V (TPS77316 only), 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 TPS773xx and TPS774xx families are

available in 8-pin MSOP (DGK) packages.