Monolithic Power Systems Inc. MP2014GZD-33-P

Overview

MP2014GZD-33-P from Monolithic Power Systems is a fixed 3.3V, 500mA low-dropout linear regulator with 3V–40V input range, 10µA quiescent current, ±2% output accuracy, and integrated power-good monitoring with programmable delay. It operates in industrial and automotive battery-powered systems where ultra-low standby power and high input voltage tolerance are required.

For engineers reviewing the MP2014GZD-33-P datasheet, MP2014GZD-33-P pinout, MP2014GZD-33-P application, or MP2014GZD-33-P equivalent, key selection criteria include dropout voltage at 500mA (≤1.3V), thermal shutdown threshold (165°C), PGDL programmability, GND-connected exposed pad thermal management, and stability with ≥0.47µF ceramic output capacitor.

Technical Context

The MP2014GZD-33-P implements a PMOS pass transistor architecture enabling low dropout (750mV typical at 500mA) and minimal quiescent current across its full 3V–40V input range. Its internal current limit (~900mA peak) and thermal shutdown (165°C with 30°C hysteresis) provide robust fault protection without external components.

Power-good functionality is implemented via an open-drain PG pin with 93% VOUT rising threshold and 5% hysteresis, while PGDL pin enables precise delay programming (6–14ms with 47nF) using a controlled 3–9µA charging current and 1.65V threshold. The device requires no ESR-tuned output capacitors and remains stable with X5R/X7R ceramics ≥0.47µF.

Key Specifications

Pinout & Package

MP2014GZD-33-P is housed in a TO252-5 package with an exposed thermal pad that must be soldered to a PCB ground plane for effective heat dissipation and electrical grounding. The package supports up to 2.27W continuous power dissipation at +25°C ambient (θJA = 55°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6210B332MR-G and NCP1117ST33T3G, MP2014GZD-33-P uniquely combines 40V input tolerance, 10µA IQ, and integrated PG/PGDL-enabling single-chip power validation and sequencing in space-constrained, wide-input industrial and automotive designs.

Availability

MP2014GZD-33-P is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, portable medical monitors, and smart energy meters requiring stable component supply across extended temperature and voltage ranges.

Supply support for MP2014GZD-33-P 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for power management, motion control, and interface applications.

The MP2014 product line targets ultra-low-power, high-input-voltage linear regulation in harsh environments-designed specifically for battery-backed industrial controls, automotive subsystems, and portable medical devices demanding long service life and reliability.

FAQ

What is the minimum input voltage required for MP2014GZD-33-P to maintain regulated 3.3V output at full 500mA load?

The minimum input voltage is calculated as VOUT + VDROPOUT = 3.3V + 1.3V = 4.6V. At 500mA load, the datasheet specifies a maximum dropout of 1300mV, so VIN must remain ≥4.6V to sustain regulation. Below this, output voltage collapses linearly with input.

Can MP2014GZD-33-P operate with a 0.47µF output capacitor, and what dielectric type is recommended?

Yes, the device is stable with a minimum 0.47µF X5R or X7R ceramic capacitor. These dielectrics maintain capacitance across temperature and bias voltage; Y5V or Z5U types are not recommended due to excessive value drift and potential instability.

How is the PGDL delay time calculated, and what capacitor value yields a 10ms delay?

Delay tPGDL (ms) = CPGDL (nF) × Vth_PGDL (1.65V) / IPGDL (µA). Using typical IPGDL = 5.5µA, a 10ms delay requires CPGDL = (10 × 5.5) / 1.65 ≈ 33nF. A standard 33nF or 47nF capacitor achieves 6–14ms per datasheet characterization.

Is the exposed thermal pad on the TO252-5 package electrically connected, and how must it be handled on the PCB?

Yes, the exposed pad is internally connected to GND. It must be soldered to a dedicated PCB ground plane with multiple thermal vias (≥4, 0.3mm diameter) to achieve θJA = 55°C/W and prevent thermal shutdown during sustained 500mA operation.

Does MP2014GZD-33-P require an input capacitor, and what value and type are specified?

Yes, a minimum 1µF X5R or X7R ceramic capacitor is required between IN and GND, placed adjacent to the IN pin. Larger values (up to 10µF) improve line transient response but are not mandatory for basic stability.

What happens to the PG pin during thermal shutdown or short-circuit events?

During thermal shutdown or output short-circuit, VOUT collapses below 88% of nominal, causing the internal MOSFET to turn on and pull PG low. This provides immediate fault indication to the host system independent of the regulator's output state.

How does the MP2014GZD-33-P handle reverse polarity or negative input voltage conditions?

The absolute maximum rating for IN is –0.3V. Applying reverse polarity or negative voltage-even briefly-can damage the internal ESD structures and PMOS pass element. An external reverse-polarity protection diode or MOSFET is required in systems with risk of incorrect battery connection.