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Microchip Technology MIC2202YML-TR
- Part No.:
- MIC2202YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFDFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC2202YML-TR.pdf
- Description:
- IC REG BUCK ADJ 600MA 10MLF
- Quantity:
- Payment:
- Shipping:
Inventory:1,158
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Product details
Overview
MIC2202YML-TR from Micrel is a high-efficiency, 2MHz synchronous buck DC-DC converter with integrated P-channel and N-channel MOSFETs, supporting 2.3V–5.5V input and adjustable output down to 0.5V 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 including cellular phone baseband and RF power amplifier supplies.
For engineers reviewing the MIC2202YML-TR datasheet, MIC2202YML-TR pinout, MIC2202YML-TR application, or MIC2202YML-TR equivalent, key selection criteria include its 2MHz fixed-frequency PWM operation, ultra-fast transient response (500kHz GBW), internal compensation, SYNC_IN/SYNC_OUT daisy-chain capability, and Pb-free 10-pin 3mm × 3mm MLF® package with thermal resistance θJA = 60°C/W.
Technical Context
The MIC2202YML-TR implements voltage-mode PWM control with an internally generated 2MHz ramp signal and a high-bandwidth error amplifier (typical GBW up to 500kHz), enabling sub-microsecond transient response critical for CPU core and CDMA/W-CDMA RF power amp rails. Its proprietary compensation eliminates need for external loop components.
It integrates a high-side P-MOSFET and low-side N-MOSFET, eliminating external diode requirements, and features logic-controlled micropower shutdown (<1µA quiescent current), thermal shutdown (160°C), and cycle-by-cycle current limiting (1.0–2.5A). The BIAS pin supplies a regulated 2.3V internal bias rail requiring a mandatory 10nF ceramic bypass capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3V to 5.5V - supports single-cell Li-ion, Li-poly, and 3.3V/5V system rails without pre-regulation. |
| Output Voltage Range | Adjustable from 0.5V to VIN - set via external resistor divider on FB pin; 0.5V reference enables low-voltage digital core supply. |
| Switching Frequency | 2MHz (±10%) - fixed PWM enables predictable EMI filtering and avoids sensitive IF bands in RF systems. |
| Output Current | 600mA continuous - sufficient for FPGA I/O banks, DSP cores, and RF front-end ICs in handheld devices. |
| Efficiency | >95% at 3.3VOUT/4.2VIN - minimizes thermal load and extends battery runtime in portable electronics. |
| Stability | Stable with 1µF X5R/X7R ceramic COUT and 2.2µH inductor - reduces BOM count and PCB area vs. conventional buck regulators. |
| Quiescent Current | 350–450µA active; <1µA in shutdown - preserves battery life during standby/sleep modes. |
| Feedback Reference | 0.500V ±2.5% - high-accuracy reference enables tight output regulation (1% line/load) across temperature. |
Pinout & Package
Package: 10-pin 3mm × 3mm MLF® (MicroLeadFrame) with exposed thermal pad (EP = GND), RoHS-compliant Pb-free finish, θJA = 60°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch Node | Drives external inductor; connects to internal high-side P-MOSFET drain and low-side N-MOSFET source. |
| 2 VIN | Input Supply | Main power input (2.3–5.5V); requires ≥1µF ceramic bypass to GND for noise suppression. |
| 3 SYNC_IN | Frequency Sync Input | Accepts 1.6–2.5MHz external clock to synchronize switching; prevents beat frequencies in multi-rail systems. |
| 4 SYNC_OUT | Sync Output | Open-collector oscillator output; enables master-slave daisy-chaining of multiple MIC2202YML-TR units. |
| 5 EN | Enable Control | Logic-high active; threshold 0.9V typical with 20mV hysteresis; disables regulator and drops IQ to <1µA. |
| 6 FB | Feedback Input | Connects to resistor divider; compares output voltage against 0.5V internal reference for regulation. |
| 7 BIAS | Internal Bias Supply | 2.3V regulated output for internal circuitry; requires 10nF ceramic capacitor to GND-no external load. |
| 8,9,10 GND | Ground Terminals | Three dedicated GND pins plus EP (exposed pad) tied to GND - minimize ground impedance and improve thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 2MHz Fixed-Frequency PWM | Enables compact filter design and avoids interference with 2.4GHz WLAN/Bluetooth bands. |
| 1µF Ceramic Output Stability | Reduces solution size by >40% vs. conventional buck regulators requiring ≥10µF output capacitance. |
| SYNCLOCK Daisy-Chain Capability | Allows precise frequency alignment of multiple converters-critical for reducing peak EMI in multi-rail PDAs. |
| Ultra-Fast Transient Response | 500kHz gain-bandwidth enables <1µs recovery from 50% load steps-essential for dynamic RF PA biasing. |
| Fully Integrated Power Stage | Eliminates external high-side/low-side MOSFETs and freewheeling diode-reduces layout complexity and BOM cost. |
| Thermal Shutdown + Current Limit | Protects against overload and PCB overheating in sealed handheld enclosures without external monitoring. |
Applications
| Cellular Phone Baseband | WLAN 802.11 Power Supply |
|---|---|
|
Use Scenario: Powers ARM-based application processor and memory subsystem in dual-mode GSM/UMTS handsets. IC Role / Device Role / Timing Role: Primary step-down regulator delivering 1.2V/1.8V/2.5V from single Li-ion cell (3.0–4.2V). Use Value: 2MHz operation avoids interference with cellular receive bands; 1µF stability enables ultra-thin PCB stack-up. |
Use Scenario: Supplies 3.3V to IEEE 802.11a/b/g transceiver ICs in smartphones and tablets. IC Role / Device Role / Timing Role: High-efficiency, low-noise buck converter synchronized to avoid harmonics near 2.4GHz ISM band. Use Value: SYNC_IN allows shifting fundamental frequency away from 2.4GHz; >95% efficiency extends Wi-Fi session time. |
| FPGA Core Voltage Supply | CDMA/W-CDMA RF Power Amplifier |
|
Use Scenario: Provides dynamically adjustable 1.0–1.5V core voltage to low-power FPGA fabric in portable instrumentation. IC Role / Device Role / Timing Role: Adjustable buck regulator with fast transient response to track FPGA logic state changes. Use Value: 500kHz GBW ensures <2µs recovery from full-load transients; FB pin enables real-time voltage scaling. |
Use Scenario: Delivers 2.7–3.6V bias to linear RF power amplifiers in 3G handsets with envelope tracking demands. IC Role / Device Role / Timing Role: High-bandwidth synchronous buck supplying rapidly varying PA supply under W-CDMA modulation. Use Value: Ultra-fast transient response maintains PA linearity during burst-mode transmission; 2MHz PWM suppresses audio-band ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | 2.25MHz fixed frequency; 0.6V reference; 600mA; 2mm × 2mm WSON-6 package; no SYNC_IN/SYNC_OUT. | Lacks synchronization capability; smaller footprint but higher thermal resistance (θJA ≈ 120°C/W) limits high-duty-cycle use. | Preferred when board space is critical and multi-rail sync is unnecessary; verify thermal margin at 600mA continuous. |
| RT8059NGSP | 1.5MHz switching; 0.6V reference; 600mA; 3mm × 3mm QFN-10; includes light-load pulse-skipping mode. | Lower switching frequency increases inductor size; pulse-skipping improves light-load efficiency but adds variable-frequency noise. | Choose for battery-powered systems prioritizing >85% efficiency below 10mA; avoid in RF-sensitive designs due to non-PWM noise. |
Compared with TPS62231DRVR and RT8059NGSP, the MIC2202YML-TR uniquely combines 2MHz fixed-frequency operation, SYNC_IN/SYNC_OUT daisy-chaining, and guaranteed 1µF ceramic stability-making it optimal for compact, multi-rail, RF-coexistence-critical designs where EMI predictability and transient fidelity are non-negotiable.
Availability
MIC2202YML-TR is available at Aetrix Electronics and suitable for cellular phone baseband, WLAN 802.11 power supplies, and FPGA core voltage applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2202YML-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 analog and mixed-signal semiconductor company founded in 1978 and acquired by Microchip Technology in 2015; known for high-performance power management and timing solutions.
The MIC2202 product line was designed specifically for ultra-compact, high-frequency DC-DC conversion in portable RF and communications equipment-emphasizing minimal external components, fast transient response, and EMI-controllable fixed-frequency operation.
FAQ
What is the minimum output capacitor value supported by the MIC2202YML-TR?
The MIC2202YML-TR is explicitly characterized and guaranteed stable with a 1µF X5R or X7R ceramic output capacitor. Using Y5V or Z5U dielectrics is prohibited-they become resistive at high frequencies and cause instability. Total output capacitance must not exceed 15µF to prevent current-limit triggering during startup; if larger values are needed, a feed-forward capacitor from VOUT to FB is required.
Does the MIC2202YML-TR require an external compensation network?
No-the MIC2202YML-TR is internally compensated and designed for voltage-mode operation with a fixed 2MHz ramp generator. It achieves stability with only a 2.2µH inductor and 1µF ceramic output capacitor. Adding external compensation components will disrupt the intended loop response and is not supported per the datasheet.
Can the MIC2202YML-TR be used with input voltages below 2.3V?
No-the absolute minimum operating input voltage is 2.3V as specified in the Absolute Maximum Ratings and Operating Ratings tables. Operation below this voltage may result in failure to start, unregulated output, or undefined behavior. The device is not characterized for sub-2.3V operation and must be powered within its 2.3V–5.5V range.
What is the function of the BIAS pin on the MIC2202YML-TR?
The BIAS pin provides a dedicated 2.3V internal bias supply for the MIC2202YML-TR's control circuitry. It must be decoupled to GND with a 10nF ceramic capacitor-no external load is permitted. Using BIAS as a general-purpose supply violates the design intent and risks regulator malfunction or instability.
How does the SYNCLOCK feature work between multiple MIC2202YML-TR devices?
The SYNCLOCK feature uses the SYNC_OUT pin (open-collector) of a "master" MIC2202YML-TR connected to the SYNC_IN pin of one or more "slave" devices. This forces all units to operate at the master's oscillator frequency (1.6–2.5MHz), aligning fundamental and harmonic content-reducing beat frequencies and simplifying EMI filter design in multi-rail systems like PDAs and smartphones.
MIC2202YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad, 10-MLF®
- 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-MLF® (3x3)
MIC2202YML-TR FAQ
1.How can I place an order for MIC2202YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2202YML-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 MIC2202YML-TR reliable?
The price and inventory of MIC2202YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2202YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2202YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2202YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2202YML-TR?
MIC2202YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2202YML-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 MIC2202YML-TR?
For technical support, including MIC2202YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2202YML-TR requirements.
6.How does Aetrix verify that MIC2202YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2202YML-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 MIC2202YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2202YML-TR?
All MIC2202YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2202YML-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 MIC2202YML-TR part is unused and in its original packaging.
Return procedure for MIC2202YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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