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ADP151ACBZ-3.3-R7

ADIADP151ACBZ-3.3-R7

Analog Devices Inc.
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA 4-WLCSP (0.76x0.76)
Active3,846 in stock
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Overview

The ADP151ACBZ-3.3-R7 is an ultralow noise, low dropout (LDO) linear regulator that operates from 2.2V to 5.5V and provides up to 200mA of output current. It is specifically engineered for high-performance analog and mixed-signal applications where low noise and high PSRR are critical for signal integrity. The device is housed in a tiny 4-ball WLCSP, making it ideal for extremely space-constrained designs.

Why Choose This Part

The ADP151 achieves high PSRR (70dB at 10kHz) without the need for an external noise bypass capacitor, reducing component count and PCB area. It remains stable with tiny 1 uF ceramic input and output capacitors and features an ultralow ground current of 265 uA at full load, which is significantly lower than many competing LDOs.

Applications

RF and Sensitive Analog Circuits
Provides clean power to VCOs, PLLs, and mixers by minimizing phase noise with its 9 nV/rtHz noise performance.
Mobile Handsets
The ultralow 0.2 uA shutdown current and small footprint extend battery life and save board space in smartphones.
Digital Camera Modules
Powers image sensors requiring stable, low-noise voltage rails to prevent image artifacts.
Portable Medical Equipment
Ensures precise measurements in handheld diagnostic tools by isolating sensitive front-ends from supply noise.

Key Specifications

PSRR 70dB ~ 55dB (10kHz ~ 100kHz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case 4-WFBGA, WLCSP
Control Features Enable
Current - Output 200mA
Protection Features Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC
Voltage - Input (Max) 5.5V
Voltage Dropout (Max) 0.2V @ 200mA
Current - Supply (Max) 350 uA
Supplier Device Package 4-WLCSP (0.76x0.76)
Current - Quiescent (Iq) 20 uA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

To evaluate this LDO, utilize the ADP151CP-EVALZ evaluation board. Ensure that 1 uF ceramic capacitors are placed as close as possible to the VIN and VOUT pins to maintain stability and optimize transient response. The EN pin includes an internal pull-down resistor, but it can be driven by a standard GPIO for logic-controlled power sequencing.

Also Consider

TPS7A2033PDBVR TITexas Instruments - Offers even lower noise at 7 uVrms and high PSRR for noise-sensitive applications in a standard SOT-23 package.
MIC5365-3.3YC5 MCHPMicrochip Technology - A high-performance 150mA LDO in a tiny SC-70 package for general-purpose portable electronics.

Categories

Power Management > LDO Voltage Regulators