Ultralow Noise, 150 mA CMOS Linear Regulator ADP150

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

I_GND = 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

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.

The ADP150 is specifically designed for stable operation with tiny 1 µF ± 30% ceramic input and output capacitors to meet the requirements of high performance, space-constrained applications.

The ADP150 is available in 14 fixed output voltage options, ranging from 1.8 V to 3.3 V.

Short-circuit and thermal overload protection circuits prevent damage in adverse conditions. The ADP150 is available in tiny 5-lead TSOT and 4-ball, 0.4 mm pitch WLCSP packages for the smallest footprint solution to meet a variety of portable power applications.

ABSOLUTE MAXIMUM RATINGS

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Stock Offer (Hot Sell)

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