Diodes Incorporated PT7M8216B30XZE

Overview

PT7M8216B30XZE from Pericom Semiconductor is a 3.0V fixed-output, 300mA low-dropout linear regulator featuring 150mV dropout at 150mA, ±2% initial output accuracy, 75dB PSRR at 1kHz, and ultra-low 36µA quiescent current. It operates from 1.7V to 5.5V input, supports 0.47µF ceramic output capacitors, and integrates thermal shutdown, current limiting, and auto output discharge - deployed in mobile phone baseband power rails and camera sensor biasing.

For engineers reviewing the PT7M8216B30XZE datasheet, PT7M8216B30XZE pinout, PT7M8216B30XZE application, or PT7M8216B30XZE equivalent, key selection criteria include guaranteed 300mA load capability under 1.7–5.5V input, high-PSRR noise suppression for RF-sensitive analog blocks, compact UDFN-4L (1mm×1mm) footprint, and EN-controlled sequencing in space-constrained portable devices.

Technical Context

The PT7M8216B30XZE employs a P-channel MOSFET pass element with internal phase compensation optimized for stability with 0.47µF X5R/X7R ceramic capacitors. Its error amplifier compares a trimmed bandgap reference against the feedback node to regulate output voltage within ±2% over line, load, and temperature.

Enable control is active-high (VENH ≥ 1.2V), with sub-1µA standby current when EN = GND. Protection circuitry includes foldback current limiting (400mA typical trip), thermal shutdown at 170°C with 20°C hysteresis, and automatic VOUT discharge via 50Ω internal path when disabled.

Key Specifications

Pinout & Package

PT7M8216B30XZE is housed in a Pb-free, RoHS-compliant 4-pin UDFN package measuring 1.0mm × 1.0mm (XZ suffix), with 0.4mm pitch and bottom-side thermal pad for enhanced power dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with XC6219B302MR-G and RT9013-30GB, PT7M8216B30XZE delivers superior PSRR and smaller footprint, making it optimal for next-gen mobile and wearable platforms where noise immunity and miniaturization are primary constraints.

Availability

PT7M8216B30XZE is available at Aetrix Electronics and suitable for mobile phone baseband power, digital camera sensor bias, and wearable SoC core supply requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for PT7M8216B30XZE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Pericom Semiconductor (now part of Diodes Incorporated) specialized in high-performance interface, timing, and power management ICs for communications and consumer electronics before its 2016 acquisition.

PT7M8216 belongs to Pericom's precision LDO family engineered for ultra-low-noise, high-PSRR power delivery in space- and battery-constrained portable devices - emphasizing miniaturization, efficiency, and reliability in RF-sensitive environments.

FAQ

What is the minimum input voltage required to maintain 3.0V output at 300mA?

The PT7M8216B30XZE requires VIN ≥ VOUT + VDROPOUT. At 300mA, dropout rises above the 150mV spec (given at 150mA); typical dropout is ~220mV per load curves. Thus, minimum VIN is ~3.22V. For guaranteed 300mA operation, design with VIN ≥ 3.3V.

Can PT7M8216B30XZE operate with a 0.22µF output capacitor?

No. The device is characterized and stabilized only with ≥0.47µF ceramic capacitors (X5R/X7R). Using 0.22µF violates the stability condition and may cause oscillation or poor transient response, as confirmed in the recommended operating conditions and application circuits.

Is the NC pin (Pin 5) required to be grounded?

Pin 5 is labeled "NC" and is not internally connected. The datasheet states it may be left open or tied to GND - neither choice affects functionality. However, grounding it improves mechanical robustness and ESD margin; leaving it floating is electrically acceptable.

Does PT7M8216B30XZE support reverse current blocking?

No. The device uses a P-channel MOSFET pass element, which inherently allows reverse current flow from VOUT to VIN when VOUT > VIN. External reverse-blocking diodes or ideal diode controllers are required if backfeed prevention is needed in the system design.