Monolithic Power Systems Inc. MP2016DD-LF-Z

Overview

MP2016DD-LF-Z from Monolithic Power Systems is a 42V-input, 30mA adjustable-output linear regulator optimized for high-voltage battery-powered systems. It delivers ±2% output voltage accuracy, 12µA quiescent current, and 50dB PSRR at DC, with external resistor-set output from 1.2V to 40V. Used in smart-battery packs where low standby power and wide VIN tolerance are critical.

For engineers reviewing the MP2016DD-LF-Z datasheet, MP2016DD-LF-Z pinout, MP2016DD-LF-Z application, or MP2016DD-LF-Z equivalent, key selection criteria include dropout voltage under 900mV at 30mA, thermal shutdown at 150°C, shutdown current <1.5µA, and QFN-8 package thermal resistance (θJA = 55°C/W).

Technical Context

The MP2016DD-LF-Z implements a precision bandgap reference (1.23V FB threshold) with external feedback control, enabling stable regulation across its full 1.2V–40V output range. Its internal pass transistor supports up to 50mA peak current while maintaining 30mA continuous operation within thermal limits defined by the QFN-8 package's 2.3W power dissipation rating at +25°C ambient.

It features active line transient response compensation and integrated protection: thermal shutdown with +20°C hysteresis, current limiting, and <1.5µA shutdown mode supply current. The device operates over –40°C to +85°C ambient temperature and requires no minimum load, supporting zero-load applications like battery monitoring circuits.

Key Specifications

Pinout & Package

MP2016DD-LF-Z is housed in a 2mm × 3mm QFN-8 package with exposed thermal pad connected to GND. The package supports high thermal efficiency (θJA = 55°C/W) and compact layout in space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar adjustable-output linear regulator applications.

Compared with TPS7A4700RGWR and ADM7172ACPZ-R7, MP2016DD-LF-Z uniquely balances 42V input tolerance, 1.2V–40V adjustability, and sub-15µA quiescent current in a 2×3mm QFN-making it optimal for space- and power-constrained high-voltage portable systems where neither alternative meets all three requirements simultaneously.

Availability

MP2016DD-LF-Z is available at Aetrix Electronics and suitable for smart-battery packs, handheld medical sensors, and notebook system management requiring stable component supply, RoHS-compliant packaging, and guaranteed long-term availability.

Supply support for MP2016DD-LF-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 mixed-signal ICs for power management, motor drive, and automotive applications.

The MP2016 series belongs to MPS's high-input-voltage linear regulator product line, designed specifically for battery-powered portable electronics needing ultra-low IQ, wide VIN tolerance, and precise adjustable output in miniature packages.

FAQ

What is the maximum continuous output current for MP2016DD-LF-Z?

The MP2016DD-LF-Z supports 30mA continuous output current. Its 50mA peak current limit provides headroom for brief load surges, but sustained operation above 30mA risks thermal shutdown in the QFN-8 package unless board-level thermal design exceeds 2.3W dissipation capability at ambient temperature.

Can MP2016DD-LF-Z regulate output voltages above 30V?

Yes. The MP2016DD-LF-Z supports externally adjustable output from 1.2V to 40V using a resistor divider on the FB pin. At 40V output, VIN must be ≥42V (within absolute max rating), and thermal design must accommodate increased power dissipation (e.g., 40V@30mA = 1.2W drop at VIN=42V).

Is an input capacitor required, and what type is recommended?

Yes. A 1µF–10µF X5R or X7R ceramic capacitor is required between VIN and GND. Larger values improve line transient response. The capacitor must be placed close to the VIN and GND pins; tantalum or electrolytic types are not recommended due to ESR and reliability concerns.

How does the SHDN pin behave during power-up?

When SHDN is left floating or tied to VIN, the device powers up automatically. The SHDN pin has a logic threshold of VIH ≥1.8V (enable) and VIL ≤0.22V (disable). Internal pull-down is not present, so external pull-up to VIN is required for default-enable behavior in most applications.

Does MP2016DD-LF-Z require a minimum load current?

No. The MP2016DD-LF-Z operates stably with zero load current. Unlike some LDOs, it does not require a minimum load for regulation stability or feedback loop integrity, making it suitable for intermittent-sensing applications like battery fuel gauging.

What is the thermal shutdown hysteresis, and how does it affect recovery?

Thermal shutdown activates at TJ = 150°C with +20°C hysteresis, meaning the device resumes operation only after die temperature falls below 130°C. This prevents rapid cycling during overload and allows safe cooldown before restart, protecting both the IC and downstream circuitry.

Can the exposed thermal pad be left unconnected?

No. The exposed pad on the QFN-8 package is electrically and thermally connected to GND. It must be soldered to a PCB copper pour tied to the system ground plane. Leaving it unconnected violates absolute maximum ratings, degrades thermal performance by >50%, and risks premature thermal shutdown or failure.