TLV71211DSER集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TLV71211DSER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TLV71211DSER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。

1FEATURES

234• 2% Accuracy

• Low IQ: 35 mA

• Fixed-Output Voltage Combinations Possible

from 0.7 V to 1.15 V(1)

• High PSRR: 68 dB at 1 kHz

• Stable with Effective Capacitance of 0.1 mF(2)

• Thermal Shutdown and Overcurrent Protection

• Packages: SOT23-5, 1,5-mm × 1,5-mm SON-6

(1) For output voltage of 1.2 V and higher, see the TLV702 family

of devices.

(2) See the Input and Output Capacitor Requirements in the

Application Information section.

APPLICATIONS

. Wireless Handsets

. Smart Phones, PDAs

. MP3 Players

. ZigBee® Networks

. Bluetooth® Devices

. Li-Ion Operated Handheld Products

. WLAN and Other PC Add-on Cards

DESCRIPTION

The TLV712xx series of low-dropout linear regulators

(LDOs) are low quiescent current devices with

excellent line and load transient performance. These

devices provide sub-bandgap output voltages; that is,

output voltages less than 1.2 V all the way down to

0.7 V. Therefore, these LDOs can be used to power

processors with operating voltages less than 1.2 V.

These LDOs are designed for power-sensitive

applications. A precision bandgap and error amplifier

provides overall 2% accuracy. Low output noise, very

high power-supply rejection ratio (PSRR), and

low-dropout voltage make this series of devices ideal

for a wide selection of battery-operated handheld

equipment. All device versions have thermal

shutdown and current limit for safety.

Furthermore, these devices are stable with an

effective output capacitance of only 0.1 mF. This

feature enables the use of cost-effective capacitors

that have higher bias voltages and temperature

derating. The devices regulate to specified accuracy

with no output load.

The TLV712xxP series also provides an active pull-down circuit to quickly discharge the outputs.

The TLV712xx series of LDO linear regulators are

available in SOT23-5 and 1,5-mm x 1,5-mm SON-6

packages.