GENERAL DESCRIPTION

The ADP151 is an ultralow noise, low dropout linear regulator that operates from 2.2 V to 5.5 V and provides up to 200 mA of output current. The low 140 mV dropout voltage at 200 mA load improves efficiency and allows operation over a wide input voltage range.

FEATURES

Ultralow noise: 9 µV rms

No noise bypass capacitor required

Stable with 1 µF ceramic input and output capacitors

Maximum output current: 200 mA

Input voltage range: 2.2 V to 5.5 V

Low quiescent current

IGND = 10 µA with 0 load

IGND = 265 μA with 200 mA load

Low shutdown current: <1 µA

Low dropout voltage: 140 mV at 200 mA load

Initial accuracy: ±1

Accuracy over line, load, and temperature: ±2.5

16 fixed output voltage options: 1.1 V to 3.3 V

PSRR performance of 70 dB at 10 kHz

Current-limit and thermal overload protection

Logic controlled enable

Internal pull-down resistor on EN input

5-lead TSOT package

6-lead LFCSP package

4-ball, 0.4 mm pitch WLCSP

APPLICATIONS

RF, VCO, and PLL power supplies

Mobile phones

Digital camera and audio devices

Portable and battery-powered equipment

Post dc-to-dc regulation

Portable medical devices

ADP151ACBZ-2.1-R7属于集成电路（IC） > 线性 + 开关稳压器。亚德诺半导体技术有限公司制造生产的ADP151ACBZ-2.1-R7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。