TPS73033DBVR集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TPS73033DBVR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TPS73033DBVR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。

1 Features

1• 200-mA RF Low-Dropout Regulator

With Enable

• Available in Fixed Voltages from 1.8 V to 3.3 V

and Adjustable Voltages (1.22 V to 5.5 V)

• High PSRR (68 dB at 100 Hz)

• Low Noise (33 μVRMS, TPS73018)

• Fast Start-Up Time (50 μs)

• Stable With a 2.2-μF Ceramic Capacitor

• Excellent Load/Line Transient Response

• Very Low Dropout Voltage (120 mV at 200 mA)

• 5- and 6-Pin SOT-23 (DBV), and Wafer Chip

Scale (YZQ) Packages

2 Applications

• RF: VCOs, Receivers, ADCs

• Audio

• Cellular and Cordless Telephones

• Bluetooth®, Wireless LAN

• Handheld Organizers, PDAs

3 Description

The TPS730 family of low-dropout (LDO) low-power

linear voltage regulators features high power-supply

rejection ratio (PSRR), low noise, fast start-up, and

excellent line and load transient responses in a small

SOT-23 package. NanoStar™ packaging gives an

ultrasmall footprint as well as an ultralow profile and

package weight, making it ideal for portable

applications such as handsets and PDAs. Each

device in the family is stable, with a small, 2.2-μF

ceramic capacitor on the output. The TPS730 family

uses an advanced, proprietary BiCMOS fabrication

process to yield low dropout voltages (for example, 120 mV at 200 mA, TPS73030). Each device

achieves fast start-up times (approximately 50 μs with

a 0.001-μF bypass capacitor) while consuming low

quiescent current (170 μA typical). Moreover, when

the device is placed in standby mode, the supply

current is reduced to less than 1 μA. The TPS73018 exhibits approximately 33 μVRMS of output voltage

noise at 1.8 V output with a 0.01-μF bypass

capacitor. Applications with analog components that

are noise-sensitive, such as portable RF electronics,

benefit from the high PSRR and low-noise features

as well as the fast response time.