Monolithic Power Systems Inc. MP2014GZD-Z

Overview

MP2014GZD-Z from Monolithic Power Systems is a 40V-input, 500mA fixed-output linear regulator in TO252-5 package with 10µA quiescent current, ±2% output accuracy, and programmable power-good delay. It delivers stable 5.0V output for ultra-low-power microcontrollers and battery-powered industrial sensors operating from high-voltage batteries (e.g., 24V automotive or 36V industrial rails).

For engineers reviewing the MP2014GZD-Z datasheet, MP2014GZD-Z pinout, MP2014GZD-Z application, or MP2014GZD-Z equivalent, key selection criteria include dropout voltage at 500mA (≤1000mV), thermal shutdown threshold (165°C), PGDL programmability via external capacitor, GND-connected exposed pad requirement, and compatibility with ≥0.47µF ceramic output capacitors.

Technical Context

The MP2014GZD-Z integrates an internal PMOS pass transistor with current limiting and thermal shutdown circuitry. Its open-drain PG output asserts after VOUT reaches 93% of nominal value and deasserts at 88%, with delay timing controlled by external capacitor on PGDL pin using a 3–9µA charging current and 1.65V threshold.

It operates across –40°C to +125°C ambient (junction up to +150°C), supports input voltages from 3V to 40V, and maintains regulation with only 0.47µF X5R/X7R ceramic output capacitance - eliminating need for electrolytic or tantalum capacitors in space-constrained designs.

Key Specifications

Pinout & Package

MP2014GZD-Z is housed in a TO252-5 surface-mount package with an exposed thermal pad that must be soldered to a PCB ground plane for effective heat dissipation and electrical stability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-quiescent-current linear regulator applications.

Compared with TPS7B8750QKVURQ1 and ADM7172ACPZ-5-R7, MP2014GZD-Z uniquely combines 40V input capability, 500mA output, 10µA quiescent current, and programmable PG delay - making it optimal for cost-sensitive, high-voltage, battery-operated industrial endpoints requiring precise power sequencing.

Availability

MP2014GZD-Z is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, portable medical devices, and smart metering endpoints requiring stable component supply across extended product lifecycles.

Supply support for MP2014GZD-Z 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 power ICs, with global manufacturing and quality certifications including ISO 9001 and IATF 16949.

The MP2014 belongs to MPS's low-I_Q linear regulator product line, designed specifically for battery-powered and high-input-voltage industrial systems where efficiency, reliability, and minimal external components are critical.

FAQ

What is the minimum output capacitor required for stability?

The MP2014GZD-Z is stable with a minimum 0.47µF X5R or X7R ceramic capacitor on the output pin. Larger values (up to 22µF) improve load transient response and reduce output ripple, but are not required for basic regulation. Electrolytic or tantalum capacitors are not recommended due to ESR and temperature drift concerns.

How is the power-good delay time calculated?

The PG delay time is calculated using t_PGDL = C_PGDL × 1.65V / I_PGDL, where I_PGDL is 3–9µA (typical 5.5µA). For example, a 47nF capacitor yields ~11ms delay. The PGDL pin must be connected to a capacitor between PGDL and GND; no series resistor is needed.

Can the MP2014GZD-Z be used with input voltages below 3V?

No - the absolute minimum input voltage is 3V per the datasheet's Recommended Operating Conditions. Operation below 3V is not guaranteed and may result in loss of regulation, inaccurate PG assertion, or undefined behavior. The device is not characterized for sub-3V operation.

Is the exposed thermal pad electrically isolated?

No - the exposed pad is internally connected to the GND pin and must be soldered to the PCB ground plane. This connection serves both thermal dissipation and electrical reference functions; floating or isolated mounting violates the thermal and functional specifications.

Does the MP2014GZD-Z support adjustable output voltage?

No - MP2014GZD-Z is a fixed 5.0V output variant. Adjustable versions (e.g., MP2014DG-LF-P) exist but require external feedback resistors and are not pin-compatible. The GZD-Z suffix denotes fixed 5V output in TO252-5 package with tape-and-reel packaging.

What happens during thermal shutdown?

When junction temperature exceeds 165°C, the internal thermal sensor disables the pass transistor, dropping output voltage to near zero. The device remains latched off until temperature falls to ~135°C (30°C hysteresis), then automatically resumes regulation - no external reset is required.

How does the power-good (PG) pin interface with a microcontroller?

PG is an open-drain output requiring an external pull-up resistor (typically 10kΩ–100kΩ) to VOUT or another logic-compatible voltage (<15V). It asserts high when VOUT ≥93% of 5.0V and pulls low when VOUT ≤88%. Microcontrollers monitor this as an active-high power-good signal, often debounced in firmware.