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Microchip Technology MIC2203YMM-TR
- Part No.:
- MIC2203YMM-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MIC2203YMM-TR.pdf
- Description:
- IC REG BUCK ADJ 300MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,808
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Product details
Overview
MIC2203YMM-TR from Micrel is a high-efficiency, 1MHz synchronous buck regulator in MSOP-10L package, delivering up to 300mA output current with adjustable output down to 0.5V from 2.3V–5.5V input. It features <1mA no-load supply current, >95% peak efficiency, and ultra-fast transient response-optimized for RF and audio power rails in portable wireless devices.
For engineers reviewing the MIC2203YMM-TR datasheet, MIC2203YMM-TR pinout, MIC2203YMM-TR application, or MIC2203YMM-TR equivalent, key selection criteria include its constant-frequency PWM operation, SYNC_IN/SYNC_OUT daisy-chain capability, internal 0.5V feedback reference, and thermal shutdown protection across –40°C to +125°C junction range.
Technical Context
The MIC2203YMM-TR implements voltage-mode PWM control with an internal 1MHz ramp generator and error amplifier comparing FB against a precise 0.5V reference. Its high loop bandwidth enables sub-microsecond transient response, reducing required output capacitance to 2.2µF ceramic.
It integrates complementary P-channel high-side and N-channel low-side MOSFETs with typical 1.5Ω ON-resistance, supports external synchronization from 0.8MHz to 1.25MHz, and provides dedicated BIAS pin (2.3V nominal) for internal circuit biasing-requiring mandatory 10nF ceramic decoupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3V to 5.5V - supports single-cell Li-ion, 3.3V/5V rails, and wide-input battery-powered systems. |
| Output Voltage | Adjustable down to 0.5V via resistor divider - enables core voltage scaling for low-power processors and RF ICs. |
| Switching Frequency | 1MHz (±20%) - enables compact magnetics (10µH) and reduces EMI fundamental below sensitive IF bands. |
| Max Output Current | 300mA - sufficient for WLAN baseband, audio codecs, and sensor subsystems without external boost. |
| Quiescent Current | <1mA (switching), <1µA (shutdown) - extends battery life in always-on or sleep-mode applications. |
| Feedback Reference | 0.5V ±2.5% - high-accuracy reference enables tight output regulation (±0.5% load/line) with minimal resistor tolerance impact. |
| Thermal Protection | Over-temperature shutdown with 20°C hysteresis - ensures safe operation under sustained high ambient or overload conditions. |
Pinout & Package
Package: 10-pin MSOP-10L (3mm × 3mm, 0.5mm pitch), exposed pad for thermal enhancement; rated for –40°C to +125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Power Switch Node | Drives external inductor; connects internally to high-side P-MOS and low-side N-MOS drains. |
| 2 VIN | Main Input Supply | Accepts 2.3V–5.5V; requires ≥1µF X5R/X7R ceramic bypass to GND for noise suppression. |
| 3 SYNC_IN | External Clock Input | Accepts 0.8–1.25MHz TTL-compatible sync signal; ties to GND if unused. |
| 4 SYNC_OUT | Sync Pulse Output | Open-collector 50ns pulse at oscillator frequency; enables master-slave daisy-chaining of multiple MIC2203YMM-TR units. |
| 5 EN | Enable Control | Active-high logic input (0.7V threshold); places device in <1µA shutdown state when low. |
| 6 FB | Feedback Input | Connects to resistor divider; compares against 0.5V internal reference to regulate output voltage. |
| 7 BIAS | Internal Bias Supply | 2.3V regulated output; must be decoupled with 10nF ceramic-no external loading permitted. |
| 8,9,10 GND | Signal & Power Ground | Common return path; pins 8–10 and exposed pad (EP) must connect to low-impedance ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables full use of X5R/X7R MLCCs for input (≥1µF), output (2.2µF), and bias (10nF)-eliminates electrolytics and improves reliability. |
| Synchronous rectification | Integrated P/N MOSFET pair eliminates external Schottky diode-reduces conduction loss and board area. |
| SYNCLOCK daisy-chain | Allows multiple MIC2203YMM-TR regulators to lock to one master clock-suppresses beat frequencies and simplifies EMI filtering. |
| Ultra-fast transient response | High loop bandwidth enables <10µs recovery from 50% load step-critical for CPU core and RF PA supply stability. |
| Thermal & current protection | Combines foldback current limit and thermal shutdown with hysteresis-prevents latch-up during overload or PCB overheating. |
Applications
| 802.11 WLAN Modules | MP3/MD Players |
|---|---|
|
Use Scenario: Powering baseband processor and RF transceiver in compact 2.4GHz Wi-Fi modules. IC Role / Device Role / Timing Role: Primary DC-DC converter generating 1.8V/2.5V/3.3V rails from single Li-ion cell. Use Value: 1MHz switching allows small 10µH inductor and 2.2µF output cap; low noise avoids interference with adjacent RF receive paths. |
Use Scenario: Regulating audio DAC, flash memory, and display backlight drivers in portable music players. IC Role / Device Role / Timing Role: Adjustable buck regulator supplying variable core voltages while maintaining <1mA quiescent draw in standby. Use Value: Shutdown current <1µA extends battery runtime; SYNC_IN enables coordinated power sequencing with system controller. |
| Cellular Phone Baseband | PDA Application Processors |
|
Use Scenario: Delivering clean, dynamically scaled voltage to GSM/UMTS baseband ICs during burst transmission. IC Role / Device Role / Timing Role: High-bandwidth point-of-load regulator responding to rapid current transients from digital baseband blocks. Use Value: Sub-10µs transient response prevents brownout during TX bursts; 0.5V FB reference enables precise 1.2V–1.5V core rail tuning. |
Use Scenario: Powering ARM-based application processors requiring stable 1.2V–1.8V core voltage with fast DVFS transitions. IC Role / Device Role / Timing Role: Synchronous buck regulator supporting dynamic voltage and frequency scaling via FB resistor network reconfiguration. Use Value: Constant 1MHz PWM avoids audible noise in audio subsystems; BIAS pin decoupling ensures stable internal bias under load steps. |
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 | 2.05V–6.0V input, fixed 1.8V output, 300mA, 3.6MHz switching, smaller 2mm × 2mm WSON-6 package. | Lacks adjustable output and SYNC_IN/SYNC_OUT; optimized for space-constrained fixed-voltage rails. | Select when board space is critical and output voltage is fixed; not suitable for multi-rail or synchronized designs. |
| RT8059GJ6 | 2.5V–5.5V input, adjustable 0.6V–5.0V output, 600mA, 1.5MHz, integrated soft-start, different pinout (SOT-23-6). | Higher current but no SYNC capability; lower thermal performance (θJA = 200°C/W vs. 115°C/W for MIC2203YMM-TR). | Choose for higher load headroom where synchronization and thermal margin are secondary priorities. |
Compared with TPS62231DRVR and RT8059GJ6, the MIC2203YMM-TR uniquely balances adjustable output, robust synchronization, and high thermal efficiency in MSOP-10L-making it optimal for multi-rail RF/audio systems requiring harmonic coherence and low-noise operation.
Availability
MIC2203YMM-TR is available at Aetrix Electronics and suitable for 802.11 WLAN modules, MP3/MD players, and cellular phone baseband power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2203YMM-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 (acquired by Microchip in 2015) was a U.S.-based analog and power management IC designer focused on high-performance, low-noise power solutions for communications and portable electronics.
The MIC2203 product line delivers high-efficiency, low-quiescent-current synchronous buck regulators specifically engineered for noise-sensitive RF and audio subsystems in battery-powered handheld devices.
FAQ
What is the minimum output voltage achievable with MIC2203YMM-TR?
The MIC2203YMM-TR supports output voltages down to 0.5V using an external resistor divider on the FB pin. Its internal 0.5V reference voltage sets the lower bound-so with R2 = 0Ω (direct FB-to-GND connection), VOUT = 0.5V. This makes MIC2203YMM-TR suitable for powering modern low-voltage logic cores and RF ICs requiring sub-1V rails.
Does MIC2203YMM-TR require an external Schottky diode?
No, the MIC2203YMM-TR does not require an external Schottky diode because it integrates both high-side P-channel and low-side N-channel MOSFETs in synchronous rectification mode. The low-side N-MOS conducts during the off-cycle, eliminating body-diode conduction losses and enabling >95% peak efficiency without additional components.
Can MIC2203YMM-TR be synchronized to an external clock source?
Yes, MIC2203YMM-TR supports external synchronization via the SYNC_IN pin, accepting TTL-compatible clock signals from 0.8MHz to 1.25MHz. When unused, SYNC_IN must be tied to GND. This feature allows harmonic alignment across multiple power rails-critical for minimizing beat frequencies in multi-regulator RF designs.
What is the purpose of the BIAS pin on MIC2203YMM-TR?
The BIAS pin on MIC2203YMM-TR provides a dedicated 2.3V internal bias supply for the control circuitry. It must be decoupled with a 10nF ceramic capacitor to GND and must not be loaded externally. This isolated bias rail ensures stable internal operation independent of VIN fluctuations or output load transients-enhancing regulation accuracy and noise immunity.
What package type is used for MIC2203YMM-TR?
MIC2203YMM-TR uses the 10-pin MSOP-10L (Mini Small Outline Package) with 0.5mm lead pitch and an exposed thermal pad. This package offers superior thermal performance (θJA = 115°C/W) compared to smaller alternatives and is compatible with standard reflow assembly processes-making MIC2203YMM-TR ideal for high-reliability portable applications.
MIC2203YMM-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:
- 300mA
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
MIC2203YMM-TR FAQ
1.How can I place an order for MIC2203YMM-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2203YMM-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 MIC2203YMM-TR reliable?
The price and inventory of MIC2203YMM-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2203YMM-TR is usually 5 days.
3.What payment methods are accepted for MIC2203YMM-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2203YMM-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2203YMM-TR?
MIC2203YMM-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2203YMM-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 MIC2203YMM-TR?
For technical support, including MIC2203YMM-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2203YMM-TR requirements.
6.How does Aetrix verify that MIC2203YMM-TR is sourced from the original manufacturer or authorized distributors?
All MIC2203YMM-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 MIC2203YMM-TR meets industry standards.
7.What is the process for return or replacement of MIC2203YMM-TR?
All MIC2203YMM-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2203YMM-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 MIC2203YMM-TR part is unused and in its original packaging.
Return procedure for MIC2203YMM-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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