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Microchip Technology MIC2202YMM
- Part No.:
- MIC2202YMM
- Manufacturer:
- Microchip Technology
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MIC2202YMM.pdf
- Description:
- IC REG BUCK ADJ 600MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:199
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Product details
Overview
MIC2202YMM from Micrel is a high-efficiency, 2MHz synchronous buck DC-DC converter with integrated P-channel high-side and N-channel low-side MOSFETs. It operates from 2.3V to 5.5V input, delivers up to 600mA at adjustable output voltages down to 0.5V, and achieves >95% efficiency using only a 1µF ceramic output capacitor and 2.2µH inductor - enabling compact, low-noise power for RF and portable applications.
For engineers reviewing the MIC2202YMM datasheet, MIC2202YMM pinout, MIC2202YMM application, or MIC2202YMM equivalent, key selection considerations include its 2MHz fixed-frequency PWM operation, ultra-fast transient response (500kHz gain bandwidth), internal compensation, SYNC_IN/SYNC_OUT daisy-chain capability, and Pb-free 10-pin MSOP package compatibility with space-constrained handheld designs.
Technical Context
The MIC2202YMM implements voltage-mode PWM control with a proprietary internal ramp generator and error amplifier referenced to a stable 0.5V feedback threshold. Its 2MHz oscillator enables small external passive components while maintaining predictable EMI profiles - critical for RF-sensitive systems like cellular handsets and WLAN modules.
It features fully integrated synchronous rectification, logic-controlled micropower shutdown (<1µA quiescent current), thermal shutdown (160°C), overcurrent protection, and a dedicated BIAS pin supplying 2.3V for internal circuitry - decoupled via a mandatory 10nF ceramic capacitor. The device supports master-slave synchronization via open-collector SYNC_OUT driving SYNC_IN of adjacent units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3V to 5.5V - supports single-cell Li-ion, Li-polymer, and regulated 3.3V/5V rails without pre-regulation. |
| Output Voltage Range | Adjustable from 0.5V to VIN–0.3V - enables core voltage scaling for CPUs, FPGAs, and RF power amps. |
| Switching Frequency | 2MHz (±10%) - allows use of sub-3mm inductors and 1µF ceramic output capacitors, minimizing board area. |
| Max Output Current | 600mA continuous - sufficient for baseband processors, memory I/O, and RF front-end biasing in portable devices. |
| Feedback Reference | 0.5V ±2.5% - sets output voltage via external resistor divider; enables precise regulation across temperature (±0.5% load/line regulation). |
| Efficiency | >95% at 3.3VOUT/4.2VIN/300mA - reduces thermal load and extends battery life in handheld electronics. |
| Transient Response | Gain bandwidth up to 500kHz - maintains tight output regulation during rapid load steps typical in CPU burst modes. |
Pinout & Package
Package: 10-pin MSOP (3mm × 3mm), Pb-free, with exposed pad (EP) connected to GND for thermal performance (θJA = 115°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch Node | Drives external inductor; connects internally to source of high-side P-MOSFET and drain of low-side N-MOSFET. |
| 2 VIN | Input Supply | Primary power input (2.3–5.5V); requires ≥1µF ceramic bypass to GND close to pin. |
| 3 SYNC_IN | Frequency Sync Input | Accepts external 1.6–2.5MHz clock to synchronize switching; TTL-compatible threshold (0.7–1.7V). |
| 4 SYNC_OUT | Sync Output | Open-collector output mirroring internal oscillator; used to daisy-chain multiple MIC2202YMM units. |
| 5 EN | Enable Control | Active-high logic input; <0.5V disables regulator, reducing IQ to <1µA; 20mV hysteresis prevents chatter. |
| 6 FB | Feedback Input | Connects to resistor divider from VOUT; compares against 0.5V reference to regulate output voltage. |
| 7 BIAS | Internal Bias Supply | 2.3V linear regulator output; must be decoupled with 10nF ceramic to GND - not for external loading. |
| 8,9,10 GND | Ground Terminals | Three dedicated GND pins plus EP (backside pad) - minimize ground impedance and improve thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 1µF Ceramic Output Stability | Eliminates need for electrolytic or tantalum capacitors - improves reliability, reduces size, and avoids aging-related drift. |
| Internal MOSFET Integration | Removes external high-side P-MOSFET and low-side N-MOSFET - simplifies layout, reduces BOM count to just 4 external components. |
| Synchronization Capability | Enables noise-sensitive system-level EMI management by aligning fundamental and harmonic frequencies across multiple regulators. |
| Ultra-Fast Transient Response | 500kHz loop bandwidth sustains <±1% output deviation during 100mA–500mA load steps - critical for CPU core and RF PA supply rails. |
| Pb-Free MSOP Packaging | RoHS-compliant 10-pin MSOP footprint ensures drop-in compatibility with legacy MIC2202BMM designs while meeting environmental standards. |
Applications
| Cellular Handset Power | WLAN Baseband Supply |
|---|---|
Use Scenario: Powers baseband processor and RF transceiver in dual-mode GSM/CDMA smartphones with dynamic voltage scaling. IC Role / Device Role / Timing Role: Adjustable synchronous buck regulator delivering 1.2V–3.3V at up to 600mA with fast load-step response. Use Value: Enables efficient core voltage scaling during call/data bursts while minimizing conducted EMI near sensitive RF receivers. | Use Scenario: Supplies 1.8V/2.5V to IEEE 802.11a/b/g baseband ICs and power amplifiers in portable access points and client adapters. IC Role / Device Role / Timing Role: High-frequency (2MHz) PWM regulator with SYNC_IN capability to avoid interference with 2.4GHz/5GHz carrier bands. Use Value: Reduces filtering complexity and PCB area versus lower-frequency alternatives, supporting miniaturized M.2 and USB dongle form factors. |
| FPGA Core Voltage | DSL Modem DSP Supply |
Use Scenario: Generates dynamically adjustable core voltage (0.9V–1.5V) for low-power FPGA configurations in portable test equipment. IC Role / Device Role / Timing Role: Internally compensated buck converter with 0.5V reference and 1% line/load regulation for precision rail generation. Use Value: Maintains stable logic thresholds during configuration changes and partial reconfiguration, preventing timing violations. | Use Scenario: Provides clean, low-noise 3.3V supply to ADSL/VDSL line driver and analog front-end ICs in residential gateways. IC Role / Device Role / Timing Role: Synchronous buck regulator with >95% efficiency and ultra-low quiescent current (<1µA in shutdown). Use Value: Extends standby battery life in backup power mode while ensuring fast wake-up response for line retraining events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2104DJ-LF-Z | 2MHz, 600mA, 2.5–5.5V input, but uses external compensation and requires ≥4.7µF output capacitance. | Lacks SYNC_IN/SYNC_OUT and BIAS pin; less suitable for multi-rail synchronized systems. | Prefer MIC2202YMM when 1µF stability, daisy-chain sync, or internal bias supply are required. |
| TPS62231DRVR | 3MHz, 600mA, 2.05–6.0V input, with DCS-Control topology and 1% feedback accuracy - but no SYNC_IN capability. | Higher frequency enables smaller inductors, yet lacks master-slave synchronization for EMI coordination. | Choose MIC2202YMM for deterministic 2MHz operation and inter-device frequency alignment in RF-dense environments. |
Compared with MP2104DJ-LF-Z and TPS62231DRVR, the MIC2202YMM uniquely combines 1µF ceramic stability, integrated BIAS regulation, and hardware-sync capability - making it optimal for compact, multi-rail, noise-sensitive portable power systems where layout simplicity and EMI predictability are critical.
Availability
MIC2202YMM is available at Aetrix Electronics and suitable for cellular phones, PDAs, 802.11 WLAN power supplies, and FPGA/ASIC core voltage regulation requiring stable component supply, RoHS compliance, and long-term industrial availability.
Supply support for MIC2202YMM 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
Micrel Inc. was a U.S.-based semiconductor company specializing in analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC2202 product line was designed for high-density, low-noise DC-DC conversion in battery-powered portable electronics - emphasizing minimal external components, fast transient response, and EMI-controllable fixed-frequency operation.
FAQ
What is the minimum output capacitor value supported by the MIC2202YMM?
The MIC2202YMM is specifically designed to be stable with a 1µF ceramic output capacitor (X5R or X7R dielectric). Using smaller values may cause instability or poor transient response. Larger values up to 15µF are acceptable but require feed-forward capacitance if exceeding 15µF to prevent current-limit triggering during startup. The MIC2202YMM datasheet confirms this 1µF minimum in both General Description and Application Information sections.
Does the MIC2202YMM require an external compensation network?
No, the MIC2202YMM features internal compensation and is optimized for stability with a 2.2µH inductor and 1µF ceramic output capacitor. No external compensation components are needed - the device uses voltage-mode control with a built-in 2MHz ramp generator and error amplifier. This eliminates design iteration time and reduces bill-of-materials cost compared to externally compensated buck regulators.
What is the function of the BIAS pin on the MIC2202YMM?
The BIAS pin on the MIC2202YMM provides a dedicated 2.3V internal linear regulator output used solely to power internal circuitry. It must be decoupled to GND with a 10nF ceramic capacitor - and must not be loaded externally. Using the BIAS pin as a general-purpose supply violates the MIC2202YMM's electrical specifications and risks improper operation or reduced efficiency.
Can the MIC2202YMM operate with input voltages below 2.3V?
No, the MIC2202YMM has a specified minimum input voltage of 2.3V per Absolute Maximum Ratings and Operating Ratings tables. Operation below 2.3V is outside guaranteed specifications and may result in failure to start, unstable regulation, or undefined behavior. For sub-2.3V inputs, alternative regulators such as the MIC2295 (1.8V min) should be evaluated - the MIC2202YMM is not rated for such conditions.
How does the SYNC_IN/SYNC_OUT feature work on the MIC2202YMM?
The MIC2202YMM's SYNC_IN accepts an external 1.6–2.5MHz clock to override its internal 2MHz oscillator; SYNC_OUT is an open-collector output replicating that synchronized frequency. Multiple MIC2202YMM units can be daisy-chained (SYNC_OUT → SYNC_IN) to lock all switching frequencies and harmonics - essential for EMI reduction in multi-rail systems like smartphones and WLAN modules.
MIC2202YMM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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):
- 0.5V
- 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
MIC2202YMM FAQ
1.How can I place an order for MIC2202YMM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2202YMM 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 MIC2202YMM reliable?
The price and inventory of MIC2202YMM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2202YMM is usually 5 days.
3.What payment methods are accepted for MIC2202YMM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2202YMM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2202YMM?
MIC2202YMM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2202YMM 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 MIC2202YMM?
For technical support, including MIC2202YMM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2202YMM requirements.
6.How does Aetrix verify that MIC2202YMM is sourced from the original manufacturer or authorized distributors?
All MIC2202YMM 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 MIC2202YMM meets industry standards.
7.What is the process for return or replacement of MIC2202YMM?
All MIC2202YMM units undergo pre-shipment inspection (PSI). If there is an issue with MIC2202YMM, 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 MIC2202YMM part is unused and in its original packaging.
Return procedure for MIC2202YMM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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