Microchip Technology MIC2202YMM-TR
- Part No.:
- MIC2202YMM-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MIC2202YMM-TR.pdf
- Description:
- IC REG BUCK ADJ 600MA 10MSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MIC2202YMM-TR from Micrel is a high-efficiency, 2MHz synchronous buck DC-DC converter with internal MOSFETs, supporting 2.3V–5.5V input and adjustable 0.5V output at up to 600mA. It achieves >95% efficiency with only four external components and stabilizes with a 1µF ceramic output capacitor-ideal for space-constrained RF and portable power applications.
For engineers reviewing the MIC2202YMM-TR datasheet, MIC2202YMM-TR pinout, MIC2202YMM-TR application, or MIC2202YMM-TR equivalent, key selection criteria include its 2MHz fixed-frequency PWM operation, ultra-fast transient response (500kHz GBW), SYNC_IN/SYNC_OUT daisy-chain capability, and Pb-free 10-pin MSOP package with thermal performance (θJA = 115°C/W).
Technical Context
The MIC2202YMM-TR implements voltage-mode PWM control with an internally compensated 2MHz oscillator and a 0.5V reference. Its proprietary compensation enables stability with minimal external components-specifically a 2.2µH inductor and 1µF X5R/X7R ceramic output capacitor-without requiring feed-forward networks under standard conditions.
It features dual-MOSFET integration (P-channel high-side, N-channel low-side), logic-controlled micropower shutdown (<1µA quiescent current), and robust protection including thermal shutdown (160°C) and current limiting (1–2.5A). The BIAS pin supplies a regulated 2.3V internal bias rail, decoupled by a mandatory 10nF capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3V to 5.5V - supports single-cell Li-ion, USB, and 3.3V/5V rails without pre-regulation. |
| Output Voltage | Adjustable down to 0.5V - set via external resistor divider on FB pin; 1% line/load regulation ensures precision under dynamic loads. |
| Switching Frequency | 2MHz (±10%) - enables compact magnetics and filtering; synchronizable from 1.6MHz to 2.5MHz via SYNC_IN. |
| Output Current | 600mA continuous - sustained with internal MOSFETs (RDS(ON) ≤ 0.75Ω at VFB = 0.55V); current limit protects against overload. |
| Efficiency | >95% at 3.3VOUT/4.2VIN - achieved via synchronous rectification and low-quiescent-current design (350–450µA active, <1µA shutdown). |
| Stability | Stable with 1µF ceramic COUT - eliminates need for electrolytic or tantalum capacitors; avoids instability risks of Y5V/Z5U dielectrics. |
| Thermal Range | –40°C to +125°C junction - qualified for industrial and automotive-adjacent portable electronics environments. |
Pinout & Package
Package: 10-pin MSOP (3mm × 3mm × 1.1mm), Pb-free, with exposed pad (EP) connected to GND for thermal enhancement (θJA = 115°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node | Drives external inductor; connects to internal P- and N-MOSFETs; requires low-inductance layout to minimize EMI. |
| 2 VIN | Input supply | 2.3V–5.5V main power input; bypassed with ≥1µF ceramic capacitor close to pin. |
| 3 SYNC_IN | Frequency sync input | Accepts 1.6–2.5MHz external clock; TTL-compatible threshold (0.7–1.7V); must not exceed VIN. |
| 4 SYNC_OUT | Open-collector sync output | Provides master oscillator signal; requires 10kΩ pull-up for daisy-chaining multiple MIC2202YMM-TR units. |
| 5 EN | Enable control | Active-high logic input; 0.5–1.3V threshold with 20mV hysteresis; <1µA shutdown current when low. |
| 6 FB | Feedback input | Connects to resistor divider; compares output to 0.5V internal reference; sets output voltage per VOUT = 0.5V × (1 + R1/R2). |
| 7 BIAS | Internal bias supply | 2.3V regulated output for internal circuitry; requires 10nF ceramic bypass; not for external loading. |
| 8,9,10 GND | Ground terminals | Three dedicated ground pins plus EP (exposed pad) - all must be tied to low-impedance PCB ground plane for thermal and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| 2MHz fixed-frequency PWM | Enables predictable EMI filtering and avoids interference in RF/audio bands; eliminates frequency jitter of burst-mode regulators. |
| 1µF ceramic output capacitor support | Reduces board area and cost vs. traditional 10–22µF solutions; eliminates electrolytic aging and ESR-related instability. |
| SYNCLOCK daisy-chain capability | Allows precise phase alignment of multiple converters - critical for noise-sensitive multi-rail systems like cellular baseband and RF front-ends. |
| Ultra-fast transient response (500kHz GBW) | Delivers sub-microsecond recovery from load steps - essential for powering CPU cores and CDMA/W-CDMA RF power amplifiers. |
| Integrated high-side P-MOSFET + low-side N-MOSFET | Eliminates external Schottky diode; reduces conduction losses and improves light-load efficiency over asynchronous designs. |
Applications
| Cellular Phone Power Management | 802.11 WLAN Baseband Supply |
|---|---|
Use Scenario: Powers application processor I/O and memory interfaces in slim-profile smartphones with tight thermal constraints. IC Role / Device Role / Timing Role: Adjustable synchronous buck regulator delivering 1.2V/1.5V/1.8V at up to 600mA with 2MHz switching. Use Value: Enables use of tiny 1µF ceramic output caps and 2.2µH inductors, reducing solution size by >40% versus legacy 500kHz converters. | Use Scenario: Supplies regulated voltage to WLAN SoC and RF transceivers in portable routers and client adapters. IC Role / Device Role / Timing Role: High-bandwidth, low-noise DC-DC converter synchronized across multiple rails to suppress intermodulation in 2.4GHz/5GHz bands. Use Value: 500kHz gain-bandwidth and SYNC_IN/SYNC_OUT allow tight transient control and harmonic alignment-minimizing conducted emissions into sensitive RF paths. |
| FPGA Core Voltage Regulation | DSL Modem Line Card Supply |
Use Scenario: Provides dynamically adjustable core voltage (0.5V–1.2V) to low-power FPGA fabric during DVFS operation. IC Role / Device Role / Timing Role: Precision feedback-controlled buck regulator with 1% load regulation and fast loop response. Use Value: Internal 0.5V reference and stable 1µF-based loop ensure accurate voltage scaling across temperature and load-critical for FPGA timing closure. | Use Scenario: Generates clean 3.3V rail for DSL PHY and analog front-end in residential gateways and modems. IC Role / Device Role / Timing Role: Efficient, low-EMI buck converter operating from 5V input with SYNC_IN locked to system clock to avoid beat frequencies. Use Value: >95% efficiency at mid-load and 2MHz operation reduce heat buildup in sealed plastic enclosures while simplifying EMI filter design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYT | 2.25MHz switching, 0.6V ref, 600mA, 2mm × 2mm WSON-6 - smaller footprint but no SYNC_IN/SYNC_OUT or BIAS pin. | Lacks daisy-chain synchronization and internal bias rail; unsuitable for master-slave multi-rail noise coordination. | Select when board space is primary constraint and synchronization is unnecessary. |
| RT8059GJ6 | 1.5MHz switching, 0.6V ref, 600mA, 2mm × 2mm TSOT-23-6 - no SYNC_IN, no BIAS pin, lower max input (5.5V same), higher quiescent current (~20µA). | No frequency synchronization capability; limited transient response bandwidth (~200kHz GBW) vs. MIC2202YMM-TR's 500kHz. | Select for cost-sensitive, non-synchronized point-of-load applications where ultra-fast transients are not required. |
Compared with TPS62231DRYT and RT8059GJ6, the MIC2202YMM-TR uniquely delivers 2MHz operation with full synchronization, internal bias regulation, and guaranteed 1µF ceramic stability-making it the only choice for noise-critical, multi-converter RF power systems requiring deterministic harmonic alignment and minimal component count.
Availability
MIC2202YMM-TR is available at Aetrix Electronics and suitable for cellular phone power management, 802.11 WLAN baseband supplies, FPGA core regulation, and DSL modem line card designs requiring stable component supply, long-term lifecycle assurance, and Pb-free compliance.
Supply support for MIC2202YMM-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
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, high-efficiency DC-DC conversion in portable and RF-sensitive applications-emphasizing small solution size, low EMI, and fast transient response without external compensation.
FAQ
What is the minimum output capacitor value supported by the MIC2202YMM-TR?
The MIC2202YMM-TR is specifically designed to be stable with a 1µF ceramic output capacitor using X5R or X7R dielectric. Using Y5V or Z5U capacitors is prohibited-they become resistive at high frequencies and cause instability. Total output capacitance must not exceed 15µF to prevent current-limit engagement during startup.
Does the MIC2202YMM-TR require external compensation components?
No, the MIC2202YMM-TR is fully internally compensated and requires no external compensation network. Its voltage-mode architecture with fixed 2MHz ramp and integrated error amplifier enables stable operation with just a 2.2µH inductor and 1µF ceramic output capacitor-reducing BOM count and layout complexity.
Can the MIC2202YMM-TR operate with input voltages below 2.3V?
No-the absolute minimum input voltage for functional operation is 2.3V, as specified in the Absolute Maximum and Operating Ratings. Below this, the internal bias regulator cannot sustain proper gate drive, and regulation fails. The device will not start or maintain output regulation at VIN < 2.3V.
What is the purpose of the BIAS pin on the MIC2202YMM-TR?
The BIAS pin provides a dedicated 2.3V internal bias supply for the controller's analog circuitry. It must be decoupled with a 10nF ceramic capacitor to ground and must not be loaded externally-using it as a power source for other circuits will degrade regulation accuracy and may cause instability.
How does the SYNCLOCK feature work between multiple MIC2202YMM-TR devices?
The SYNCLOCK feature uses the open-collector SYNC_OUT pin of a master MIC2202YMM-TR (pulled up with 10kΩ) connected to the SYNC_IN pin of one or more slave devices. This forces all units to switch at the same frequency and phase, eliminating beat frequencies and simplifying EMI filtering in multi-rail systems such as cellular transceivers.
MIC2202YMM-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:
- 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-TR FAQ
1.How can I place an order for MIC2202YMM-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2202YMM-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 MIC2202YMM-TR reliable?
The price and inventory of MIC2202YMM-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2202YMM-TR is usually 5 days.
3.What payment methods are accepted for MIC2202YMM-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2202YMM-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2202YMM-TR?
MIC2202YMM-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2202YMM-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 MIC2202YMM-TR?
For technical support, including MIC2202YMM-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2202YMM-TR requirements.
6.How does Aetrix verify that MIC2202YMM-TR is sourced from the original manufacturer or authorized distributors?
All MIC2202YMM-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 MIC2202YMM-TR meets industry standards.
7.What is the process for return or replacement of MIC2202YMM-TR?
All MIC2202YMM-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2202YMM-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 MIC2202YMM-TR part is unused and in its original packaging.
Return procedure for MIC2202YMM-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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