Monolithic Power Systems Inc. MP62160DD-LF-P

Overview

MP62160DD-LF-P from Monolithic Power Systems is a single-channel, active-low current-limited power distribution switch with integrated 85mΩ MOSFET, 2.8A typical current limit, output discharge function, and thermal shutdown protection. It operates from 2.7V to 5.5V input and delivers up to 2A continuous load current. Used in USB power distribution and portable electronics for fault-tolerant rail switching.

For engineers reviewing the MP62160DD-LF-P datasheet, MP62160DD-LF-P pinout, MP62160DD-LF-P application, or MP62160DD-LF-P equivalent, key selection criteria include its 2.8A accurate current limit, 8ms FLAG deglitch time, reverse current blocking, 90μA quiescent current, and QFN8E (2mm × 3mm) package with exposed thermal pad.

Technical Context

The MP62160DD-LF-P implements a constant-current limiting architecture triggered at 2.8A typical trip threshold, entering current regulation before thermal shutdown activates at ~140°C junction temperature. Its open-drain FLAG pin asserts after an 8ms deglitch window to reject transient overloads.

It integrates under-voltage lockout (UVLO) with 1.95V–2.65V rising-edge threshold and 250mV hysteresis, plus active-low enable logic compatible with 0.8V/2V logic thresholds. The built-in 250Ω discharge path safely bleeds output capacitance when disabled.

Key Specifications

Pinout & Package

MP62160DD-LF-P uses a thermally enhanced QFN8E package (2mm × 3mm) with exposed pad soldered to PCB ground for optimal thermal performance. Pin 1 is marked by a dot or notch; exposed pad must be connected to GND for electrical and thermal integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current-limited power distribution switch applications.

Compared with TPS22965DSGR and AP22653WU-7, MP62160DD-LF-P uniquely combines accurate 2.8A current limiting, integrated 250Ω discharge, open-drain FLAG with 8ms deglitch, and UL recognition-making it optimal for safety-aware, diagnostic-capable USB and portable power architectures.

Availability

MP62160DD-LF-P is available at Aetrix Electronics and suitable for USB power distribution, smartphone peripheral rail switching, and notebook PC subsystem power control requiring stable component supply, RoHS-compliant packaging, and full traceability.

Supply support for MP62160DD-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 across Asia and North America.

The MP62160 series belongs to MPS's load switch product line, engineered specifically for compact, fault-resilient power distribution in space-constrained portable and consumer electronics.

FAQ

What is the logic polarity of the EN pin on MP62160DD-LF-P?

The EN pin on MP62160DD-LF-P is active-low: the device enables when EN is pulled below 0.8V (typical), and disables when EN rises above 2V. This matches the "MP62160" variant designation (vs. MP62161, which is active-high).

Does MP62160DD-LF-P require an external pull-up on the FLAG pin?

Yes-FLAG is an open-drain output and requires an external pull-up resistor (typically 10kΩ to 5V or V_IN) to generate a valid logic-high state when no fault is present. No internal pull-up is integrated.

Can MP62160DD-LF-P drive a 2.2μF output capacitor without instability?

Yes-the device is characterized with up to 100μF output capacitance and exhibits stable turn-on/turn-off behavior. With CL = 2.2μF and RL = 5Ω, typical turn-on time is 3ms and turn-off time is 10ms, per datasheet Figure 1 test conditions.

How does the output discharge function behave during UVLO?

The discharge function activates whenever the device is disabled-either by EN deassertion OR when IN falls below the UVLO threshold (1.95V). In both cases, the 250Ω internal path engages to discharge the output capacitor.

Is the exposed thermal pad on MP62160DD-LF-P electrically connected internally?

Yes-the exposed pad is internally tied to GND and must be soldered to a PCB ground plane. It serves both thermal dissipation (θ_JA = 55°C/W) and electrical grounding; floating or unconnected pads compromise thermal performance and EMI behavior.

What is the maximum allowable continuous power dissipation for MP62160DD-LF-P at +60°C ambient?

Using θ_JA = 55°C/W and T_J(MAX) = 150°C: PD_MAX = (150 − 60) / 55 ≈ 1.64W. This aligns with the datasheet's 2.3W rating at +25°C ambient and confirms thermal headroom for typical industrial use cases.

Does MP62160DD-LF-P support reverse current blocking when disabled?

Yes-it features inherent reverse current blocking: when disabled (EN high or VIN < UVLO), leakage from OUT to IN is limited to 0.2μA max at V_OUT = 5.5V, preventing backfeed into upstream supplies.