Microchip Technology MIC2204YMM

Overview

MIC2204YMM from Microchip Technology is a high-efficiency, 2 MHz synchronous buck DC-DC converter in a 10-pin MSOP package, delivering up to 600 mA at output voltages down to 1 V from a 2.3–5.5 V input. It features internal MOSFETs, ultra-fast transient response (200 kHz GBW), and logic-controlled micropower shutdown. It is designed for Li-ion–powered RF and portable applications requiring stable, low-noise power.

For engineers reviewing the MIC2204YMM datasheet, MIC2204YMM pinout, MIC2204YMM application, or MIC2204YMM equivalent, this page delivers verified specifications, validated pin functions, confirmed thermal and synchronization behavior, and real-world design context for high-frequency portable power systems.

Technical Context

The MIC2204YMM implements a fixed-frequency voltage-mode PWM control architecture with an internal 2 MHz oscillator and proprietary internal compensation-enabling stable operation with only ceramic capacitors and a 4.7 µH inductor. Its loop bandwidth of ~200 kHz supports fast load transients typical in CPU core and RF power supply rails.

It integrates complementary P-channel high-side and N-channel low-side MOSFETs, eliminating external diode requirements. Synchronization via SYNC_IN (1.8–2.5 MHz) and daisy-chaining via open-drain SYNC_OUT allow coordinated multi-rail timing in dense RF layouts without frequency beating.

Key Specifications

Pinout & Package

Package: 10-pin MSOP (3.0 mm × 4.9 mm × 1.0 mm, JEDEC MO-187AA), RoHS-compliant, –40°C to +125°C junction temperature rating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck converter applications.

Compared with TPS62231DRVR and RT8059ZSP, the MIC2204YMM uniquely combines 600 mA capability, 2 MHz fixed-frequency operation with SYNC_IN/SYNC_OUT, and 1.0 V reference for tighter output accuracy-making it optimal for RF-sensitive, battery-powered designs requiring deterministic timing and robust transient performance.

Availability

MIC2204YMM is available at Aetrix Electronics and suitable for cellular phone core power, 802.11 WLAN RF power supplies, and Li-ion–powered portable medical devices requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MIC2204YMM 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog, interface, and power management ICs, with a focus on reliability, longevity, and embedded system integration.

The MIC2204 product line delivers high-efficiency, high-frequency synchronous buck regulators optimized for space-constrained, battery-powered RF and portable electronics where low noise, fast transient response, and synchronization are essential.

FAQ

What is the maximum output current supported by the MIC2204YMM under continuous operation?

The MIC2204YMM supports up to 600 mA of continuous output current when properly heatsinked and operated within its thermal limits. At full load with VIN = 3.5 V and VOUT = 1.0 V, junction temperature must remain ≤+125°C-achievable with the MSOP package's θ_JA = 115°C/W under typical PCB copper pour conditions. Derating is required above +60°C ambient.

Does the MIC2204YMM require external compensation components?

No, the MIC2204YMM uses internal compensation and is stable with a 4.7 µH inductor and 4.7 µF X5R/X7R ceramic output capacitor for outputs ≥1.6 V. For outputs <1.6 V or when using feed-forward capacitance, a 10 µF output capacitor is required. No external RC networks or compensation pins are needed.

Can the MIC2204YMM be synchronized to an external clock source?

Yes, the MIC2204YMM accepts an external clock on the SYNC_IN pin over a range of 1.8 MHz to 2.5 MHz. This allows harmonic alignment across multiple rails and avoids interference with sensitive RF bands. The SYNC_OUT pin provides an open-drain output for daisy-chaining additional MIC2204YMM devices in master-slave configuration.

What is the purpose of the BIAS pin on the MIC2204YMM, and how must it be used?

BIAS is an internal 2.3 V linear regulator output that powers internal circuitry. It must be decoupled to GND with a 0.01 µF ceramic capacitor and must not supply external loads. Using BIAS as a power rail will degrade regulation accuracy and may cause instability-its sole function is internal biasing, as specified in DS20006454A-page 9.

How does the MIC2204YMM handle thermal overload conditions?

The MIC2204YMM incorporates thermal shutdown that activates at approximately 160°C junction temperature, with 20°C hysteresis to prevent oscillation. When triggered, the device halts switching and enters a safe high-impedance state until temperature falls below 140°C. This protection is fully integrated and requires no external circuitry-verified across the full –40°C to +125°C operating range.