ADP150屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由亞德諾半導體技術(shù)有限公司制造生產(chǎn)的ADP150穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。

GENERAL DESCRIPTION

The ADP150 is an ultralow noise (9 μV), low dropout, linear regulator that operates from 2.2 V to 5.5 V and provides up to 150 mA of output current. The low 105 mV dropout voltage at 150 mA load improves efficiency and allows operation over a wide input voltage range.

Using an innovative circuit topology, the ADP150 achieves ultralow noise performance without the necessity of an additional noise bypass capacitor, making it ideal for noise sensitive analog and RF applications. The ADP150 also achieves ultralow noise performance without compromising PSRR or line and load transient performance. The ADP150 offers the best combination of ultralow noise and quiescent current consumption to maximize battery life in portable applications.

FEATURES

Ultra low noise: 9 μV rms, independent of VOUT

No additional noise bypass capacitor required

Stable with 1 μF ceramic input and output capacitors

Maximum output current: 150 mA

Input voltage range: 2.2 V to 5.5 V

Low quiescent current

IGND = 10 μA with zero load

Low shutdown current: <1 μA

Low dropout voltage: 105 mV @ 150 mA load

Initial output voltage accuracy: ±1

Up to 14 fixed output voltage options: 1.8 V to 3.3 V

PSRR performance of 70 dB at 10 kHz

Current limit and thermal overload protection

Logic-controlled enable

5-lead TSOT package

4-ball, 0.8 mm × 0.8 mm, 0.4 mm pitch WLCSP

APPLICATIONS

Mobile phones

Digital camera and audio devices

Portable and battery-powered equipment

Post dc-to-dc regulation

Portable medical devices

RF, PLL, VCO, and clock power supplies