Monolithic Power Systems Inc. MP2016DD-LF-P

Overview

MP2016DD-LF-P from Monolithic Power Systems is a 42V-input, 30mA adjustable-output linear regulator in QFN-8 (2×3mm) package, featuring 12µA quiescent current, ±2% output accuracy, and 50dB PSRR at DC. It delivers stable bias for high-voltage battery-powered systems such as smart-battery packs and handheld devices where low power consumption and wide input range are critical.

For engineers reviewing the MP2016DD-LF-P datasheet, MP2016DD-LF-P pinout, MP2016DD-LF-P application, or MP2016DD-LF-P equivalent, key selection criteria include its 4V–42V input range, 1.2V–40V adjustable output via resistor divider, thermal shutdown protection, and QFN-8 thermal resistance of 55°C/W.

Technical Context

The MP2016DD-LF-P implements an external-feedback linear regulation architecture with a precision 1.23V FB reference and integrated pass transistor. Its control loop maintains output stability across load steps up to 30mA while sustaining <1.5µA shutdown current and fast line transient response.

It operates without internal compensation-stability relies on external ceramic output capacitance (1–10µF, X5R/X7R). Thermal shutdown activates at 150°C with +20°C hysteresis, and current limiting caps peak output at 50mA to protect against short-circuit conditions.

Key Specifications

Pinout & Package

MP2016DD-LF-P uses a thermally enhanced QFN-8 (2mm × 3mm) package with exposed pad soldered to ground plane for optimal heat dissipation (θJA = 55°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7A4700RGWR and ADM7172ACPZ-R7, MP2016DD-LF-P uniquely supports 42V input at ultra-low 12µA IQ in a 2×3mm QFN, making it optimal for long-life, high-voltage battery systems where size and standby power are constrained.

Availability

MP2016DD-LF-P is available at Aetrix Electronics and suitable for smart-battery packs, handheld medical devices, and industrial scanners requiring stable component supply with guaranteed RoHS-compliant sourcing and full traceability.

Supply support for MP2016DD-LF-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 power ICs, with design centers in the US, China, and Taiwan.

The MP2016 product line targets high-input-voltage, ultra-low-power linear regulation for battery-powered and automotive-adjacent applications where reliability, small footprint, and extended operational life are essential.

FAQ

What is the minimum recommended output capacitor for stable operation?

The MP2016DD-LF-P requires a minimum 1µF X5R or X7R ceramic capacitor on the output. Using 4.7µF improves load transient response and reduces output ripple. Avoid Y5V dielectrics due to large capacitance drift over temperature and voltage.

Can MP2016DD-LF-P regulate from 42V input down to 1.2V output?

Yes - the device supports 1.2V–40V output via external resistor divider. At 42V input and 1.2V output, dropout margin is sufficient (42V − 1.2V = 40.8V > 0.9V), but power dissipation must be managed: P_D = (42V − 1.2V) × I_LOAD. For 30mA, that's 1.22W - requiring adequate PCB copper area and thermal relief.

Is the exposed pad on the QFN-8 package electrically connected?

Yes - the exposed pad is internally connected to GND 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 MP2016DD-LF-P require an input capacitor?

Yes - a minimum 1µF X5R/X7R ceramic capacitor is required between VIN and GND. Larger values (up to 10µF) improve line transient response and reduce input ripple coupling. Place it within 3mm of VIN and GND pins for optimal high-frequency bypassing.

How does the SHDN pin behave during power-up?

When SHDN is left floating or pulled high (≥1.8V), the device powers up automatically. If pulled low (<0.22V), it remains in shutdown with <1.5µA supply current. To ensure deterministic startup, tie SHDN to VIN through a 100kΩ resistor or use a dedicated enable signal synchronized with system power sequencing.

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

At +85°C ambient, the QFN-8 package's thermal limit restricts continuous output current to ~22mA (assuming 2-layer PCB with 1-in² copper). This is derived from P_D(MAX) = (125°C − 85°C)/55°C/W = 0.727W → I_OUT = 0.727W / (V_IN − V_OUT). At VIN=24V and VOUT=5V, max I_OUT ≈ 38mA; derate accordingly for higher ΔV or less copper.

Is there a feed-forward capacitor option to reduce output noise?

Yes - a 22nF ceramic capacitor placed in parallel with R1 (upper feedback resistor) acts as a feed-forward path that significantly reduces output noise, especially beneficial for >12-bit ADC power supplies. It is optional for stability but strongly recommended in precision analog applications.