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Microchip Technology MIC2204BMM-TR
- Part No.:
- MIC2204BMM-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MIC2204BMM-TR.pdf
- Description:
- IC REG BUCK ADJ 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,609
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Product details
Overview
MIC2204BMM-TR from Microchip Technology is a high-efficiency, 2 MHz synchronous buck DC-DC converter with integrated MOSFETs, delivering up to 600 mA at output voltages down to 1 V from a 2.3–5.5 V input. It features ultra-fast transient response (200 kHz GBW), internal compensation, and support for all-ceramic output capacitors. It is used in Li-ion–powered RF power supplies and cellular phone core voltage regulation.
For engineers reviewing the MIC2204BMM-TR datasheet, MIC2204BMM-TR pinout, MIC2204BMM-TR application, or MIC2204BMM-TR equivalent, key selection criteria include its 2 MHz fixed-frequency PWM operation, SYNC_IN/OUT daisy-chain capability, <340 µA quiescent current in active mode, thermal/current protection, and MSOP-10 package compatibility with space-constrained portable designs.
Technical Context
The MIC2204BMM-TR implements a voltage-mode PWM control architecture with a proprietary internally compensated loop achieving ~200 kHz gain bandwidth-enabling sub-microsecond load transient recovery critical for CPU core and RF power rails. Its synchronous topology integrates a high-side P-channel and low-side N-channel MOSFET, eliminating external diode requirements.
It supports external clock synchronization (1.8–2.5 MHz) via SYNC_IN and provides an open-collector SYNC_OUT for master-slave daisy-chaining of multiple converters. The BIAS pin supplies a regulated 2.3 V internal bias rail, requiring a mandatory 10 nF ceramic decoupling capacitor and prohibiting external loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V - supports single-cell Li-ion (3.0–4.2 V), USB-powered, and wide-input portable systems without pre-regulation. |
| Output Current | 600 mA max - sufficient for powering ARM Cortex-A/M cores, WLAN baseband ICs, or RF front-end modules. |
| Switching Frequency | 2 MHz (typ.) - enables compact magnetics (4.7 µH inductor) and minimizes EMI overlap with sensitive IF bands in 802.11/WCDMA receivers. |
| Feedback Reference | 1.00 V ±2% - allows precise output setting (e.g., 1.2 V, 1.8 V, 3.3 V) using standard resistor dividers with ≤10 kΩ top-leg resistance. |
| Quiescent Current | 320 µA (typ.) - ensures >95% efficiency at light loads (e.g., 10 mA), extending battery runtime in standby modes. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive infotainment, industrial handhelds, and extended-temperature embedded applications. |
| Thermal Resistance θJA | 115°C/W (MSOP-10) - requires minimal PCB copper area for thermal management in 25 mm² footprint designs. |
Pinout & Package
Package: 10-pin MSOP (3.0 mm × 4.9 mm × 1.0 mm, JEDEC MO-187AA), exposed pad not present. RoHS-compliant, Pb-free matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SW) | Switch Node | Internal MOSFET output node - connects to inductor; requires low-inductance layout to minimize switching noise and EMI. |
| 2 (VIN) | Input Supply | Primary power input (2.3–5.5 V); must be bypassed with ≥1 µF X5R/X7R ceramic capacitor close to pin. |
| 3 (SYNC_IN) | Sync Input | Accepts external 1.8–2.5 MHz clock; tying high reduces frequency to 1.6 MHz; must not exceed VIN. |
| 4 (SYNC_OUT) | Sync Output | Open-drain oscillator output - requires external 10 kΩ pull-up to enable daisy-chained synchronization of multiple MIC2204 units. |
| 5 (EN) | Enable Control | Logic-level shutdown input (0.52–0.96 V threshold); pulls quiescent current to 6.5 µA when low. |
| 6 (FB) | Feedback Input | Connects to resistor divider from VOUT; internal 1.0 V reference enables adjustable output; high-impedance node sensitive to noise. |
| 7 (BIAS) | Bias Regulator Output | Internally regulated 2.3 V supply - must be decoupled with 10 nF ceramic; not for external use. |
| 8–10 (GND) | Ground Terminals | Three dedicated ground pins - must be tied together with low-impedance plane to minimize ground bounce and improve PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables stable operation with 4.7 µF X5R/X7R output cap - eliminates bulk tantalum or electrolytic, reducing size and improving reliability. |
| SYNCLOCK daisy-chain | Allows multiple MIC2204BMM-TR units to share one master clock via SYNC_OUT → SYNC_IN - eliminates beat frequencies in multi-rail systems. |
| Ultra-fast transient response | 200 kHz gain bandwidth delivers <1 µs recovery from 50% load step - maintains tight regulation on CPU burst-mode loads. |
| Fully integrated MOSFETs | Eliminates external high-side P-MOS and low-side N-MOS - reduces BOM count, layout area, and gate-drive complexity. |
| Thermal + current protection | Auto-shutdown at 160°C junction temp with 20°C hysteresis and cycle-by-cycle current limiting - prevents damage during overload or short-circuit events. |
Applications
| Cellular Phone Core Power | 802.11 WLAN RF Power |
|---|---|
Use Scenario: Powers ARM Cortex-A7/A53 application processor core rail (1.0–1.2 V) during dynamic DVFS transitions. IC Role / Device Role / Timing Role: Primary synchronous buck regulator supplying CPU VDD_CORE with fast transient response and low-noise 2 MHz switching. Use Value: Maintains <±2% output regulation during 100 mA → 600 mA load steps within 1 µs - preventing processor crashes or throttling. |
Use Scenario: Supplies 3.3 V to 802.11ac WLAN transceiver PA and LNA stages in smartphones and IoT gateways. IC Role / Device Role / Timing Role: High-efficiency, low-EMI power source synchronized to system clock to avoid interference with 2.4/5 GHz RF bands. Use Value: 2 MHz fixed-frequency operation places harmonics outside WLAN receiver IF windows; >95% efficiency extends battery life per transmit burst. |
| Li-ion–Powered Portable Medical Devices | Industrial Handheld Scanner Power |
Use Scenario: Provides regulated 1.8 V and 3.3 V rails for ADCs, sensors, and BLE SoCs in battery-operated glucose meters and pulse oximeters. IC Role / Device Role / Timing Role: Dual-rail power solution leveraging multiple MIC2204BMM-TR units in SYNCLOCK configuration for coherent noise spectrum. Use Value: <340 µA quiescent current preserves battery capacity during long idle periods; –40°C to +125°C rating ensures operation in cold-storage or sterilized environments. |
Use Scenario: Delivers 5 V to image sensor and laser driver in rugged barcode scanners powered by 3.7 V Li-ion packs. IC Role / Device Role / Timing Role: Step-up-capable buck (via higher VIN) with robust thermal shutdown - handles intermittent high-current laser pulses without latch-up. Use Value: Integrated current limit (0.6–2 A) and thermal protection prevent field failures during repeated trigger actuation; MSOP-10 fits narrow PCB width constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | 2.25–6.5 V input; 3 MHz switching; 600 mA; 1.0 V FB; 16 V max SW rating | Higher input range and SW voltage rating - better suited for 5 V rail or post-LDO inputs; less optimal for direct Li-ion (3.0–4.2 V) due to lower light-load efficiency. | Select TPS62231DRVR if system uses 5 V intermediate bus or requires higher SW voltage margin; verify thermal performance in MSOP-6 footprint. |
| RT8059NGSP | 2.5–5.5 V input; 2 MHz; 600 mA; 0.6 V FB; 10-pin WDFN (3×3 mm); no SYNC_IN/OUT | Lower feedback reference enables tighter low-VOUT accuracy (e.g., 0.8 V); lacks synchronization - unsuitable for multi-rail coherent noise control. | Choose RT8059NGSP only when SYNC functionality is unnecessary and 0.6 V FB improves regulation at sub-1 V outputs; confirm WDFN thermal performance matches MSOP-10. |
Compared with TPS62231DRVR and RT8059NGSP, the MIC2204BMM-TR uniquely combines 2 MHz synchronization capability, 2.3 V minimum input for direct Li-ion operation, and MSOP-10 packaging with three GND pins for superior noise immunity - making it optimal for RF-sensitive, battery-constrained portable designs where timing coherence and layout robustness are critical.
Availability
MIC2204BMM-TR is available at Aetrix Electronics and suitable for high-efficiency portable power, cellular phone/PDA core regulation, and 802.11 WLAN RF power supplies requiring stable component supply across production lifecycles.
Supply support for MIC2204BMM-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 is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog, interface, and power management ICs for industrial, automotive, and consumer applications.
The MIC2204 product line delivers high-frequency, high-efficiency synchronous buck regulators optimized for space-constrained, battery-powered RF and computing systems - emphasizing low quiescent current, fast transient response, and EMI-controlled switching.
FAQ
What is the recommended output capacitor for MIC2204BMM-TR?
The MIC2204BMM-TR is designed for stability with a 4.7 µF X5R or X7R ceramic capacitor for output voltages above 1.6 V. For outputs below 1.6 V - such as 1.2 V or 1.0 V - a 10 µF ceramic capacitor is required. Y5V or Z5U dielectrics must be avoided, as their capacitance loss over temperature and frequency causes instability. Total output capacitance must not exceed 15 µF to prevent startup current-limit engagement.
Does MIC2204BMM-TR support external clock synchronization?
Yes, the MIC2204BMM-TR supports external clock synchronization via its SYNC_IN pin, accepting frequencies from 1.8 MHz to 2.5 MHz. This allows harmonic alignment across multiple power rails to reduce beat frequencies and simplify EMI filtering. Its SYNC_OUT pin provides an open-collector signal that can drive the SYNC_IN of other MIC2204BMM-TR units in a daisy-chain configuration.
What is the function of the BIAS pin on MIC2204BMM-TR?
The BIAS pin on the MIC2204BMM-TR provides an internally regulated 2.3 V supply for internal circuitry and must be decoupled with a 10 nF ceramic capacitor to ground. It is not intended for external use - connecting external loads will degrade regulation and may cause malfunction. The capacitor must be placed adjacent to the pin with minimal trace length to ensure stable bias operation.
How does MIC2204BMM-TR handle thermal overload?
The MIC2204BMM-TR includes thermal shutdown protection that activates at 160°C junction temperature, with 20°C hysteresis to prevent oscillation. When triggered, the device halts switching and enters a safe state until the junction cools below 140°C. This protection operates independently of current limit and is fully specified across the –40°C to +125°C operating range, ensuring reliability in sealed or high-ambient environments.
Can MIC2204BMM-TR operate with input voltage below 2.3 V?
No, the MIC2204BMM-TR has a specified minimum input voltage of 2.3 V. Operation below this level is not guaranteed and may result in dropout, unregulated output, or failure to start. For applications requiring lower VIN - such as partially discharged Li-ion cells (<3.0 V) - a different regulator with 1.8 V or lower minimum input should be selected. The MIC2204BMM-TR is optimized for stable operation across the full 2.3–5.5 V range.
MIC2204BMM-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
MIC2204BMM-TR FAQ
1.How can I place an order for MIC2204BMM-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2204BMM-TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MIC2204BMM-TR reliable?
The price and inventory of MIC2204BMM-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2204BMM-TR is usually 5 days.
3.What payment methods are accepted for MIC2204BMM-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2204BMM-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2204BMM-TR?
MIC2204BMM-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2204BMM-TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MIC2204BMM-TR?
For technical support, including MIC2204BMM-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2204BMM-TR requirements.
6.How does Aetrix verify that MIC2204BMM-TR is sourced from the original manufacturer or authorized distributors?
All MIC2204BMM-TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MIC2204BMM-TR meets industry standards.
7.What is the process for return or replacement of MIC2204BMM-TR?
All MIC2204BMM-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2204BMM-TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MIC2204BMM-TR part is unused and in its original packaging.
Return procedure for MIC2204BMM-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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