Monolithic Power Systems Inc. MP2014GZD-33-Z

Overview

MP2014GZD-33-Z 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 programmable power-good delay. It operates in industrial and automotive battery-powered systems where ultra-low standby power and high-voltage tolerance are critical-e.g., remote sensor nodes powered by 24V lead-acid or 36V Li-ion stacks.

For engineers reviewing the MP2014GZD-33-Z datasheet, MP2014GZD-33-Z pinout, MP2014GZD-33-Z application, or MP2014GZD-33-Z equivalent, key selection criteria include dropout voltage at 500mA (≤1300mV), thermal shutdown threshold (165°C), PGDL programmability via external capacitor, stability with ≥0.47µF ceramic output cap, and TO252-5 package thermal resistance (θJA = 55°C/W).

Technical Context

The MP2014GZD-33-Z implements a PMOS pass transistor architecture enabling low dropout and minimal quiescent current across its full 3V–40V input range. Its internal bandgap reference and error amplifier deliver 3.3V output with ±2% accuracy over load (5mA–500mA) and temperature (−40°C to +125°C ambient).

Power Good functionality uses an open-drain PG pin with 93% VOUT rising threshold and 5% hysteresis, while PGDL pin accepts an external capacitor to set delay time (6–14ms typical for 47nF). Thermal shutdown activates at 165°C with 30°C hysteresis, and short-circuit protection limits peak current to 900mA.

Key Specifications

Pinout & Package

MP2014GZD-33-Z is housed in a TO252-5 surface-mount package with exposed thermal pad (internally connected to GND); the pad must be soldered to a large copper ground plane for θJA = 55°C/W performance.

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 ADM7172ACPZ-3.3-R7, MP2014GZD-33-Z uniquely balances 40V input tolerance, 10µA IQ, 500mA output, and programmable PG timing-making it the sole option among the three for long-life, high-voltage, sequenced battery-powered systems.

Availability

MP2014GZD-33-Z 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 product lifecycles.

Supply support for MP2014GZD-33-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MP2014 series belongs to MPS's ultra-low-quiescent-current LDO portfolio, engineered specifically for battery-powered industrial and automotive systems demanding extended runtime, wide-input operation, and integrated power sequencing intelligence.

FAQ

What is the minimum output capacitor required for stability?

The MP2014GZD-33-Z is stable with a minimum 0.47µF X5R or X7R ceramic capacitor on the OUT pin. Larger values (up to 22µF) improve load transient response and reduce output noise, but are not required for basic stability. Tantalum or aluminum electrolytic capacitors are not recommended due to ESR and temperature drift issues.

How does the PGDL pin set power-good delay time?

The PGDL pin sinks a constant 3–9µA current (typical 5.5µA) to charge an external capacitor. Delay time is calculated as tPGDL = CPGDL × 1.65V / IPGDL. For example, a 47nF capacitor yields 6–14ms delay depending on actual IPGDL. The capacitor must be NP0/C0G type for temperature stability.

Can MP2014GZD-33-Z operate with input voltage below 3.3V?

No. The absolute minimum input voltage is 3V per datasheet specifications, and dropout voltage is 1000mV at 500mA. To maintain 3.3V output, VIN must remain ≥4.3V under full load. Below 4.3V, output voltage drops linearly with input, and regulation ceases.

Is the exposed thermal pad electrically connected?

Yes. The exposed pad on the TO252-5 package is internally connected to the GND pin and must be soldered to a PCB ground plane. This connection provides both electrical grounding and primary thermal conduction path; omitting it degrades θJA by >30°C/W and risks thermal shutdown under load.

Does MP2014GZD-33-Z support reverse-polarity protection?

No. The device lacks internal reverse-voltage protection. If reverse polarity is possible in the application, an external series Schottky diode (with <0.3V forward drop) must be added on the IN line, or a dedicated reverse-protection IC used upstream.

What is the maximum continuous output current at 85°C ambient?

At TA = 85°C, maximum continuous output current is ~320mA. Using PD(MAX) = (TJ(MAX) − TA)/θJA = (150°C − 85°C)/55°C/W = 1.18W, and VDROP ≈ 0.75V at 300mA, power dissipation remains within limit. Derating is required above 85°C ambient to avoid thermal shutdown.

How does the power-good (PG) pin behave during thermal shutdown?

During thermal shutdown, the PG pin is actively pulled low regardless of output voltage level. This provides a reliable fault indication distinct from undervoltage events. PG returns high only after VOUT recovers to ≥93% of 3.3V and thermal shutdown has cleared (junction cooled below 135°C).