Monolithic Power Systems Inc. MP2721GRH-0000-P

Overview

MP2721GRH-0000-P from Monolithic Power Systems is a 5A, single-cell Li-ion/Li-polymer buck charger IC with I²C-controlled NVDC power path management, ±0.5% battery voltage regulation, 8.5μA shipping-mode discharge current, and integrated 15mΩ battery MOSFET - deployed in portable POS terminals, Bluetooth headphones, and wearable cameras requiring fast, thermally safe charging.

For engineers reviewing the MP2721GRH-0000-P datasheet, MP2721GRH-0000-P pinout, MP2721GRH-0000-P application, or MP2721GRH-0000-P equivalent, key selection considerations include I²C-programmable JEITA temperature windows (0°C–60°C), USB BC1.2 + non-standard adapter detection, 750kHz–1.5MHz switching frequency control, and dual NTC inputs for precision thermal regulation in space-constrained battery systems.

Technical Context

The MP2721GRH-0000-P implements a monolithic NVDC architecture with integrated high-side (25mΩ), low-side (25mΩ), reverse-blocking (15mΩ), and battery (14mΩ) MOSFETs - enabling seamless system power sourcing from input or battery without voltage droop. Its dual-path control logic dynamically prioritizes SYS rail stability over charge rate during simultaneous load and charge events.

It embeds a dedicated USB D+/D− detection engine compliant with BC1.2 and three non-standard voltage windows (1.2V/2.0V/2.7V), plus an independent 10-bit ADC for dual NTC monitoring and fully configurable JEITA profile enforcement - all coordinated via a register-mapped I²C interface operating at 400kHz with lockable safety registers.

Key Specifications

Pinout & Package

MP2721GRH-0000-P is housed in a thermally enhanced QFN-22 package (2.5mm × 3.5mm, 0.5mm pitch) with exposed thermal pad for PCB heat sinking. Pin numbering follows top-view orientation per MPS datasheet Rev. 1.1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-cell I²C-controlled buck charger applications.

Compared with BQ25618RTWR and IP2326, MP2721GRH-0000-P uniquely combines 5A charging, hardware JEITA with dual NTCs, and integrated OTG boost - making it the sole option for compact, thermally robust, multi-role portable devices needing both high-power charging and battery-sourced peripheral power.

Availability

MP2721GRH-0000-P is available at Aetrix Electronics and suitable for Bluetooth headphones, POS terminals, and portable cameras requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MP2721GRH-0000-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-efficiency power management ICs, with design centers in the US, China, and Taiwan, and global distribution through authorized partners.

The MP2721 product line targets space-constrained, battery-powered consumer and industrial devices requiring integrated charging, system power management, and USB-compliant sourcing - emphasizing thermal safety, firmware flexibility, and minimal external component count.

FAQ

What is the maximum sustainable input voltage for MP2721GRH-0000-P?

The MP2721GRH-0000-P supports a maximum continuous input voltage of 26V, verified per Absolute Maximum Ratings. This allows direct connection to 24V industrial rails or 19V laptop adapters without external clamping, though recommended operating range remains 3.9V–16V for optimal efficiency and thermal performance.

How does the MP2721GRH-0000-P handle battery over-voltage protection?

It implements hardware-based battery OVP at 103–106.5% of the programmed VBATT_REG value (e.g., 4.33V for 4.2V setting), with 1.7% hysteresis. Upon detection, the charger disables FETs and asserts INT pin - no software intervention required, ensuring fail-safe cell protection even during I²C bus failure.

Can the MP2721GRH-0000-P operate without an I²C host controller?

Yes - it boots into default configuration (VBATT_REG = 4.2V, ICC = 1040mA, IIN_LIM = 1.5A) and supports autonomous charging. However, full functionality - JEITA profile, OTG enable, dynamic current scaling, and fault logging - requires I²C initialization and runtime control.

What is the purpose of the VRNTC pin?

VRNTC provides a regulated voltage reference (equal to VCC) to bias external NTC thermistors. It powers both NTC1 and NTC2 circuits, enabling ratiometric ADC measurements that reject supply variation - critical for accurate temperature profiling across battery voltage ranges.

Does MP2721GRH-0000-P support USB On-The-Go (OTG) without additional components?

Yes - its integrated boost converter delivers 5.0–5.35V at up to 3A into loads up to 2mF, with built-in OCP and soft-start. Only external inductor, output capacitor, and optional feedback resistor (for voltage trim) are required - no external MOSFETs or controllers needed.

How is shipping mode exited after manufacturing?

Apply logic-low signal to RST pin for 0.9–1.3 seconds while VIN = 0V. This wakes the IC, enables BATTFET, and restores SYS output. The sequence is hardware-triggered and requires no I²C command - essential for automated test and final assembly line activation.

What thermal metrics define safe continuous operation?

With 2-layer PCB and 2cm² copper pour under thermal pad, θJA = 50°C/W. At TA = 25°C, max continuous power dissipation is 2W before thermal shutdown (TJ = 150°C). Derating begins above 80°C junction - configurable TJ_REG threshold allows preemptive current reduction at 60–120°C.