Microchip Technology MIC2810-4GMYML-TR

Overview

MIC2810-4GMYML-TR from Microchip Technology is a digital power management IC integrating a 2 MHz, 600 mA DC/DC buck converter and two independent 300 mA LDOs (LDO1 and LDO2) with output voltages of 1.2 V, 1.8 V, and 2.8 V respectively. It features LOWQ mode for ultra-low-noise operation at 30 µA quiescent current, integrated power-on reset (POR) with programmable delay, and thermal/current protection. It powers embedded MPU subsystems requiring tightly sequenced, low-noise, multi-rail supplies.

For engineers reviewing the MIC2810-4GMYML-TR datasheet, MIC2810-4GMYML-TR pinout, MIC2810-4GMYML-TR application, or MIC2810-4GMYML-TR equivalent, key selection considerations include its triple-output architecture, 3 mm × 3 mm QFN package, LOWQ vs. PWM mode trade-offs (53 µVRMS noise vs. >90% efficiency), and POR sequencing control via CSET capacitor.

Technical Context

The MIC2810-4GMYML-TR implements a dual-mode regulation architecture: in LOWQ mode (LOWQ = GND), the DC/DC converter is disabled and replaced by an LDO-based output path delivering up to 60 mA with 53 µVRMS noise; in full-power mode (LOWQ = VIN), the 2 MHz PWM converter delivers up to 600 mA with >90% efficiency. The device uses separate input pins (VIN, VIN1, VIN2) to support wide input ranges: 2.7–5.5 V for VIN/VIN2 and 1.65–5.5 V for VIN1.

Its POR output is open-drain and logic-OR'd across all three regulated outputs, with delay programmable via external capacitor on CSET (1.25 µA current source, delay = CSET in pF). All enable inputs (EN, EN1, EN2) are CMOS-compatible active-high signals with <1 µA shutdown current when all are deasserted.

Key Specifications

Pinout & Package

The MIC2810-4GMYML-TR is housed in a 16-pin, 3 mm × 3 mm, 0.85 mm-thick QFN package with exposed thermal pad (PGND-connected). Pin 1 is marked by a dot; SGND and PGND are separate ground paths for signal integrity and thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multi-rail power management applications.

Compared with MIC2810-4GMYML-TR, the -4GSYML-TR offers identical functionality with a 3.3 V LDO2 output for broader I/O compatibility, while the TPS650703RSLR provides more buck channels but lacks LOWQ's ultra-low-noise capability and consumes more quiescent current - making it less suitable for battery-critical or RF-sensitive applications.

Availability

MIC2810-4GMYML-TR is available at Aetrix Electronics and suitable for embedded MPU power sequencing, low-power wearable sensor hubs, and portable RF front-end bias applications requiring stable component supply, long-term lifecycle support, and guaranteed Pb-free industrial-grade qualification (–40°C to +125°C).

Supply support for MIC2810-4GMYML-TR 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

Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, FPGAs, and power management ICs, serving automotive, industrial, consumer, and communications markets with vertically integrated silicon and software solutions.

The MIC2810 product line delivers highly integrated, low-noise, multi-rail power management ICs optimized for space-constrained, battery-powered embedded systems requiring precise sequencing, ultra-low IQ, and RF-clean operation.

FAQ

What output voltages does the MIC2810-4GMYML-TR provide?

The MIC2810-4GMYML-TR provides three fixed output voltages: 1.2 V from the DC/DC converter, 1.8 V from LDO1, and 2.8 V from LDO2. These values are encoded in the part number suffix "4GM" per Microchip's Product Identification System and are non-adjustable. Each output is independently enabled via dedicated EN pins, supporting flexible power sequencing in complex SoC systems.

How does the LOWQ mode affect the MIC2810-4GMYML-TR's DC/DC output behavior?

In LOWQ mode (LOWQ pin pulled low), the MIC2810-4GMYML-TR disables its 2 MHz PWM DC/DC converter and routes the 1.2 V output through an internal LDO path, reducing total quiescent current to 30 µA and output noise to 53 µVRMS. This mode limits DC/DC output current to 60 mA and places LDO1/LDO2 in low-load mode (<50 mA). Full 600 mA PWM operation resumes when LOWQ is pulled high.

Can the MIC2810-4GMYML-TR be used with a 1.65 V input for LDO1?

Yes, the MIC2810-4GMYML-TR supports VIN1 (LDO1 input) down to 1.65 V, enabling operation from partially discharged single-cell Li-ion or NiMH batteries. LDO1 maintains regulation to its 1.8 V output as long as VIN1 ≥ (VOUT + dropout), with typical dropout of 70 mV at 150 mA. This feature is unique to LDO1 - VIN and VIN2 require minimum 2.7 V.

What is the purpose of the CSET pin on the MIC2810-4GMYML-TR?

The CSET pin on the MIC2810-4GMYML-TR sources a precise 1.25 µA current to charge an external capacitor to 1.25 V, setting the POR output assertion delay. The delay in microseconds equals the capacitor value in picofarads (e.g., 10 nF = 10,000 pF → 10 ms delay). This enables customizable power-up sequencing across multiple voltage rails without external timers.

Does the MIC2810-4GMYML-TR support independent enable control for all three outputs?

Yes, the MIC2810-4GMYML-TR provides fully independent enable control: EN (Pin 15) for the DC/DC converter, EN1 (Pin 14) for LDO1, and EN2 (Pin 16) for LDO2. All are active-high CMOS inputs requiring ≥1.0 V for logic high. When disabled, each regulator shuts down completely - e.g., EN = low places the SW node in high-impedance state, eliminating shoot-through risk.