Monolithic Power Systems Inc. MP2736DQG-LF-P

Overview

MP2736DQG-LF-P from Monolithic Power Systems is a low-voltage dual SPDT analog switch IC with 0.45Ω typical on-resistance at 2.7V, 1.65V–5.5V single-supply operation, and integrated active-low enable (EN) pin. It supports bidirectional analog signal routing in portable audio/video systems, features guaranteed break-before-make timing, and is housed in a 1.4mm × 1.8mm QFN10 package for space-constrained battery-powered designs.

For engineers reviewing the MP2736DQG-LF-P datasheet, MP2736DQG-LF-P pinout, MP2736DQG-LF-P application, or MP2736DQG-LF-P equivalent, key selection criteria include its EN-controlled dual-channel switching, 29ns/23ns turn-on/turn-off times at 2.7V, ±250mA continuous current per channel, 1.65V logic compatibility, and QFN10 thermal performance under 85°C ambient conditions.

Technical Context

The MP2736DQG-LF-P implements two independent CMOS SPDT switches sharing a common enable input (EN), where EN = low activates both channels and EN = high places all switches in high-impedance state. Its control logic uses IN1 to select NO1/NC1 and IN2 to select NO2/NC2 - unlike MP2735, which lacks EN and uses separate controls.

Designed for rail-to-rail analog signal handling, it guarantees conduction symmetry across power rails, supports ±250mA continuous current per NC/NO/COM terminal, and maintains <0.02Ω r_ON matching between channels at 2.7V, enabling precision multiplexing in audio path and sensor interface applications.

Key Specifications

Pinout & Package

MP2736DQG-LF-P is packaged in a thermally enhanced 10-pin QFN (1.4mm × 1.8mm, 0.4mm pitch) with exposed thermal pad. Pin 1 is marked by a corner chamfer; the exposed paddle must be soldered to PCB ground for optimal thermal performance and EMI suppression.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual SPDT analog switch applications.

Compared with TS5A23157DGSR and ADG736BRMZ, MP2736DQG-LF-P delivers lowest on-resistance in its voltage class, integrated EN simplifies system-level power sequencing, and QFN10 package provides superior thermal performance and board-area efficiency for portable designs.

Availability

MP2736DQG-LF-P is available at Aetrix Electronics and suitable for cellular phone audio routing, portable media player headset switching, and handheld test instrument signal path selection requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.

Supply support for MP2736DQG-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, and global manufacturing partnerships.

The MP273x series targets ultra-low-power analog signal routing in portable electronics, emphasizing rail-to-rail operation, sub-1Ω on-resistance, and miniature packaging for battery-operated devices.

FAQ

What is the maximum continuous current rating per switch terminal?

MP2736DQG-LF-P supports ±250mA continuous current through each NO, NC, or COM terminal at TA ≤ 85°C. This rating applies under steady-state conduction with proper PCB copper pour on the exposed thermal pad. Peak pulsed current up to ±500mA is allowed at 1ms duration and 10% duty cycle.

Does the EN pin override individual IN1/IN2 control signals?

Yes. When EN is high, both SPDT switches enter high-impedance state regardless of IN1 or IN2 logic levels. Only when EN is low do IN1 and IN2 determine channel selection for Switch 1 and Switch 2 respectively. This enables system-level power gating without modifying control logic.

Can MP2736DQG-LF-P operate with a 1.8V supply and 1.8V logic inputs?

Yes. With V+ = 1.8V, the device meets 1.65V minimum V_INH specification, ensuring reliable recognition of 1.8V logic-high signals. On-resistance increases to ~0.7Ω at 1.8V, but remains suitable for low-current audio and sensor signal routing where voltage drop is acceptable.

Is break-before-make timing guaranteed across temperature and voltage?

Yes. Break-before-make interval (t_BBM) is guaranteed ≥10ns at V+ = 3.6V and TA = +25°C. While not production-tested across full temperature range, the architecture ensures monotonic behavior; typical t_BBM remains >8ns at –40°C to +85°C per design validation.

How does the exposed thermal pad affect PCB layout requirements?

The exposed paddle (Pin 11, unnumbered) must be soldered to a solid GND copper pour with ≥4 thermal vias (0.3mm diameter) connecting to inner ground planes. Failure to do so degrades thermal resistance by >30%, risking derating above 70°C ambient and reducing power handling capability below 208mW.

What is the maximum signal frequency supported for analog video routing?

With RL = 50Ω and CL = 5pF, MP2736DQG-LF-P achieves 50MHz 3dB bandwidth - sufficient for standard-definition composite video (up to ~5MHz) and component video Y/Pb/Pr signals. For HDMI or high-speed digital video, dedicated high-speed switches with >500MHz bandwidth are required.

Are NC and NO terminals interchangeable in terms of current rating and on-resistance?

Yes. Both NC and NO terminals share identical construction and electrical specifications: same ±250mA continuous current rating, matched 0.45Ω r_DS(on), and symmetric conduction characteristics. The designation reflects default state only; either can serve as primary signal path depending on control logic.