Monolithic Power Systems Inc. MP8762HGLE-P

Overview

MP8762HGLE-P from Monolithic Power Systems is a fully integrated synchronous step-down DC/DC converter delivering 10A output current with 2.5V–18V input range, 0.611V–13V adjustable output, and proprietary adaptive Constant-On-Time (COT) control for ultrafast transient response in compact QFN-16 (3mm×4mm) package. It integrates high- and low-side MOSFETs (R_DS(ON) = 26mΩ / 16mΩ), programmable 200kHz–1MHz switching frequency, and non-latch OCP/OVP/thermal shutdown - deployed in flat-panel TV power rails and small-cell base station intermediate bus converters.

For engineers reviewing the MP8762HGLE-P datasheet, MP8762HGLE-P pinout, MP8762HGLE-P application, or MP8762HGLE-P equivalent, key selection criteria include its COT-based load-step response (<10µs), soft-start programmability via external capacitor, pre-bias startup capability, and open-drain power-good signaling with 2.5ms delay and ±9% window tolerance.

Technical Context

The MP8762HGLE-P implements adaptive COT control with feed-forward compensation, enabling near-constant switching frequency across input voltage variation while maintaining fast line/load transients. Its internal 4.8V VCC LDO powers gate drivers and control logic, and bootstrap circuitry supports high-side NMOS operation without external charge pump.

It operates in PWM mode under continuous conduction (CCM) above critical current (~3.5A at 12V_IN/1V_OUT/500kHz), transitions to skip-mode DCM at light load for >90% efficiency at 1mA, and features valley-current OCP with hiccup recovery, non-latching OVP at 120% V_FB, and thermal shutdown at 150°C with 25°C hysteresis.

Key Specifications

Pinout & Package

MP8762HGLE-P is housed in a thermally enhanced QFN-16 package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad. Pin 1 is marked by dot; top marking includes "MP", year/week code, "8762H", lot number, and "E" suffix.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous step-down converter applications.

Compared with MP8762HGLE-P, MPQ8762GQ-AEC1 adds automotive qualification without altering functionality, while RTQ2132BGQW trades adaptive COT responsiveness for fixed-frequency predictability and higher current - making the MP8762HGLE-P optimal for space-constrained, high-transient industrial and telecom systems requiring minimal external components.

Availability

MP8762HGLE-P is available at Aetrix Electronics and suitable for flat-panel television power rails, small-cell base station intermediate buses, and XDSL modem line cards requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MP8762HGLE-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 over two decades of expertise in DC/DC conversion, motor drivers, and LED lighting controllers.

The MP8762H belongs to MPS's high-current monolithic buck converter product line, engineered for space-constrained, high-efficiency power delivery in consumer, telecom, and industrial equipment where integration, thermal performance, and transient response are critical.

FAQ

What is the minimum recommended output capacitance for stable operation?

The MP8762HGLE-P requires ≥22µF total output capacitance with ≤5mΩ ESR for stable COT operation at full 10A load. Ceramic capacitors are preferred; if using POSCAP or polymer types, ESR must meet equation (4) in the datasheet (≥0.7×T_ON/(2π×C_OUT)) to ensure slope compensation and avoid subharmonic oscillation.

Can the MP8762HGLE-P operate with an input voltage below 4.5V?

Yes - with an external 5V bias applied to the VCC pin, the MP8762HGLE-P supports input voltages as low as 2.5V. This disables the internal VCC LDO and allows operation in low-input applications such as battery-powered test equipment or USB-C PD sink circuits where input may dip below 4.5V.

How is the switching frequency affected by input voltage variation?

Using the FREQ pin with a resistor to IN enables feed-forward compensation, keeping switching frequency nearly constant across the 4.5V–18V input range in CCM mode. Measured deviation is <±3% from nominal setting (e.g., 500kHz remains 485–515kHz) due to internal one-shot timer calibration and comparator delay.

Does the MP8762HGLE-P support forced continuous conduction mode (FCCM)?

No - the MP8762HGLE-P automatically transitions between CCM and DCM based on load current and does not offer a pin or register to force CCM at light loads. Its skip-mode DCM operation improves light-load efficiency but introduces variable-frequency behavior below ~1A output.

What thermal derating applies above 25°C ambient?

With θ_JA = 46°C/W on a 4-layer JEDEC PCB, maximum continuous power dissipation drops linearly: at 60°C ambient, PD_MAX = (150°C − 60°C)/46°C/W = 1.96W. At 10A output, this corresponds to ~196mΩ effective thermal resistance - requiring adequate copper area and possible airflow to sustain full load above 50°C ambient.

Is the power-good (PG) signal compatible with 1.8V logic interfaces?

Yes - the PG pin is open-drain and can be pulled up to any voltage ≤5.5V. To interface with 1.8V logic, connect a 10kΩ pull-up resistor from PG to 1.8V; the pin sinks ≥4mA when active low and leaks <100nA when high, ensuring clean TTL/CMOS-level signaling without level-shifting circuitry.