Microchip Technology MIC2810-4LSYML-TR

Overview

MIC2810-4LSYML-TR from Microchip Technology is a digital power management IC integrating a 2 MHz, 600 mA synchronous step-down DC/DC converter and two independent 300 mA low-dropout regulators (LDO1 = 1.2 V, LDO2 = 2.7 V, DC/DC = 3.3 V), all with individual enable control and LOWQ ultra-low-noise light-load mode. It delivers <30 µA total quiescent current in LOWQ mode, 53 µVRMS DC/DC output noise, and operates across –40°C to +125°C for embedded MPU power in space-constrained portable systems.

For engineers reviewing the MIC2810-4LSYML-TR datasheet, MIC2810-4LSYML-TR pinout, MIC2810-4LSYML-TR application, or MIC2810-4LSYML-TR equivalent, key selection considerations include triple-output sequencing capability, 3 mm × 3 mm QFN package footprint, integrated POR with programmable delay, thermal shutdown protection, and compatibility with ceramic output capacitors as small as 2.2 µF per regulator.

Technical Context

The MIC2810-4LSYML-TR implements a dual-mode DC/DC architecture: full-power PWM mode (2 MHz, up to 600 mA) and LOWQ linear-regulator mode (≤30 µA IQ, 60 mA max DC/DC output). Its three regulated outputs-DC/DC (3.3 V), LDO1 (1.2 V), and LDO2 (2.7 V)-are independently enabled via EN, EN1, and EN2 pins and share no internal voltage coupling.

Power-on reset (POR) is an open-drain output asserting low when any enabled output falls below 91% of nominal; delay is set by CSET pin capacitor (1.25 µA current source, 1 µs/pF). BIAS, SGND, and PGND pins separate bias/reference, signal, and high-current ground paths to minimize noise coupling between switching and linear sections.

Key Specifications

Pinout & Package

Tiny 16-pin 3 mm × 3 mm QFN package with exposed thermal pad (ML suffix); RoHS-compliant, Pb-free matte tin finish; JEDEC-standard land pattern recommended per Microchip DS20005910B-page 18.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar triple-output power management applications.

Compared with MIC2810-4GSYML-TR and MIC2810-4MSYML-TR, the MIC2810-4LSYML-TR uniquely supports 1.2 V core logic with 2.7 V analog I/O - making it optimal for low-voltage microcontrollers and precision sensor interfaces requiring tight noise control and independent sequencing.

Availability

MIC2810-4LSYML-TR is available at Aetrix Electronics and suitable for embedded MPU power, wearable health monitors, low-power RF systems, and industrial backup power applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MIC2810-4LSYML-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 microcontroller, mixed-signal, analog, and Flash-IP solutions, serving industrial, automotive, consumer, and communications markets with high-reliability semiconductor products.

The MIC2810 product line delivers highly integrated, triple-output power management ICs optimized for space-constrained, battery-powered embedded systems requiring precise voltage sequencing, ultra-low quiescent current, and RF-clean operation.

FAQ

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

The MIC2810-4LSYML-TR provides three fixed output voltages: DC/DC converter = 3.3 V, LDO1 = 1.2 V, and LDO2 = 2.7 V. These values are laser-trimmed at wafer test and specified across –40°C to +125°C with ±2% accuracy in normal operation. The part number suffix "4LS" explicitly denotes this 1.2 V / 2.7 V / 3.3 V combination per Microchip's Product Identification System (DS20005910B-page 23).

How does the LOWQ mode function in the MIC2810-4LSYML-TR?

In the MIC2810-4LSYML-TR, pulling the LOWQ pin low (≤0.2 V) disables the DC/DC PWM section and switches regulation to the LDO output (Pin 9), limiting total quiescent current to ≤30 µA and DC/DC output noise to 53 µVRMS. LDO1 and LDO2 remain active but are restricted to <50 mA load each. This mode is ideal for ultra-low-power standby states where RF or analog integrity is critical.

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

On the MIC2810-4LSYML-TR, the CSET pin sources a precise 1.25 µA current to charge an external capacitor to ground, setting the POR output assertion delay. The delay in microseconds equals the capacitor value in picofarads (e.g., 100 nF = 100,000 pF = 100,000 µs = 100 ms). This enables configurable power-up timing for complex multi-rail systems without external timers.

Does the MIC2810-4LSYML-TR support independent power sequencing?

Yes, the MIC2810-4LSYML-TR supports fully independent sequencing via three dedicated enable inputs: EN (DC/DC), EN1 (LDO1), and EN2 (LDO2), all active-high CMOS-compatible. Each regulator powers up only when its respective enable is asserted, and the POR output reflects the OR of all enabled outputs' regulation status - enabling robust, customizable boot sequences for multi-voltage SoCs.

What package type and thermal performance does the MIC2810-4LSYML-TR use?

The MIC2810-4LSYML-TR uses a 16-pin 3 mm × 3 mm QFN package (ML suffix) with exposed thermal pad. Its junction-to-air thermal resistance (θJA) is 56°C/W, allowing sustained 600 mA DC/DC operation at +85°C ambient with proper PCB copper area. The package is Pb-free, RoHS-compliant, and rated for –40°C to +125°C operation per JEDEC standards.