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Microchip Technology MIC2225-GJYMT-TR
- Part No.:
- MIC2225-GJYMT-TR
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC2225-GJYMT-TR.pdf
- Description:
- IC REG DL BUCK/LNR 2MHZ 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,133
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Product details
Overview
MIC2225-GJYMT-TR from Micrel is a dual-output power management IC integrating a 2MHz 600mA synchronous buck regulator and a 300mA low-dropout linear regulator, delivering fixed 1.8V and 2.5V outputs respectively. It operates from 2.7V–5.5V input, achieves >95% efficiency in PWM mode, and supports ultra-low-noise portable applications such as camera DSPs and application processors.
For engineers reviewing the MIC2225-GJYMT-TR datasheet, MIC2225-GJYMT-TR pinout, MIC2225-GJYMT-TR application, or MIC2225-GJYMT-TR equivalent, key selection criteria include its dual-rail fixed-voltage configuration, 10-pin 2mm×2mm Thin MLF® package, thermal shutdown protection, and independent enable control for both regulators.
Technical Context
The MIC2225-GJYMT-TR implements a constant-frequency 2MHz PWM architecture with internal P- and N-channel MOSFETs, enabling fast transient response and stable operation with only a 2.2µF ceramic output capacitor. Its buck section supports 100% duty cycle and features UVLO (2.55V typ), current limit (0.95A typ), and integrated soft-start.
The co-integrated LDO operates independently with 210mV dropout at 300mA, 470µVRMS output noise (10Hz–100kHz), and 43dB PSRR at 1kHz - optimized for noise-sensitive analog or RF circuitry powered from the same input rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion, USB, and regulated 3.3V/5V rails without external pre-regulation. |
| Buck Output | Fixed 1.8V @ 600mA - delivers core voltage for low-power application processors with <±2% accuracy over load and temperature. |
| LDO Output | Fixed 2.5V @ 300mA - supplies clean I/O or interface voltage with 210mV dropout and 470µVRMS noise. |
| Switching Frequency | 2MHz (±10%) - enables use of small 2.2µH inductors and reduces EMI in space-constrained portable designs. |
| Efficiency | >95% at 100mA (3.6VIN/1.8VOUT) - minimizes thermal rise and extends battery life in handheld devices. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive infotainment and industrial portable equipment operating in harsh environments. |
| Shutdown Current | <5µA (both regulators disabled) - preserves battery charge during system sleep modes. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (Pb-free, NiPdAu finish, halogen-free mold compound), thermally enhanced with exposed thermal pad (connected to PGND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 AGND | Analog ground reference | Separate low-noise return path for feedback, bias, and LDO control circuitry; must be isolated from PGND except at single-point star ground. |
| 2 LDO | LDO output terminal | Delivers regulated 2.5V; requires 2.2µF ceramic capacitor directly at pin for stability and noise filtering. |
| 3 BIAS | Internal bias supply node | Powered via internal 6Ω resistor from AVIN; requires 0.1µF bypass capacitor to AGND to suppress high-frequency ripple. |
| 4 AVIN | Analog supply input | Provides power to LDO and control circuitry; must be tied to VIN but routed separately to avoid switching noise coupling. |
| 5 FB | Buck feedback input | Internally connected to 1.8V output for fixed-option variants; no external divider required. |
| 6 EN | Buck enable input | Active-high logic control (1.0V threshold); disables buck stage and reduces quiescent current to <5µA. |
| 7 ENLDO | LDO enable input | Active-high logic control (1.0V threshold); independently powers down LDO to eliminate standby leakage. |
| 8 VIN | Main power input | Supplies buck switches and drivers; requires 1µF ceramic capacitor close to VIN–PGND loop for high-frequency decoupling. |
| 9 SW | Buck switch node | Connects to external inductor; carries high di/dt PWM current - must be short, wide, and远离 sensitive analog traces. |
| 10 PGND | Power ground return | High-current return path for buck switching loop; must be low-inductance polygon pour separate from AGND/SGND. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-regulator architecture | Eliminates need for two discrete regulators, reducing BOM count, PCB area, and design validation effort for dual-rail portable systems. |
| Stable with 2.2µF ceramic output cap | Enables use of small, low-ESR X5R/X7R capacitors - avoids bulkier tantalum or electrolytic solutions and improves reliability. |
| Independent enable pins (EN / ENLDO) | Allows dynamic power sequencing: e.g., boot core rail first, then enable I/O rail only when needed - optimizing system-level power states. |
| Ultra-low noise LDO output | 470µVRMS (10Hz–100kHz) and 43dB PSRR at 1kHz ensure clean supply for ADCs, PLLs, or RF front-ends sharing the same input source. |
| Thermal and current protection | Auto-recovering thermal shutdown (160°C trip) and cycle-by-cycle current limiting prevent damage during overload or poor heatsinking conditions. |
Applications
| Camera Module Power | Application Processor Core Supply |
|---|---|
Use Scenario: Powering CMOS image sensor and ISP in smartphone rear cameras requiring tightly regulated, low-noise dual voltages. IC Role / Device Role / Timing Role: MIC2225-GJYMT-TR delivers 1.8V core and 2.5V I/O simultaneously, with independent enable control for power-state coordination during capture bursts. Use Value: 470µVRMS LDO noise prevents image sensor pattern noise; 2MHz switching avoids interference with pixel clock harmonics. | Use Scenario: Supplying ARM Cortex-A series application processors in portable media players with dynamic voltage scaling requirements. IC Role / Device Role / Timing Role: MIC2225-GJYMT-TR provides 1.8V core rail and 2.5V peripheral rail, supporting DVFS transitions via coordinated EN/ENLDO signaling. Use Value: >95% buck efficiency at light loads extends playback time; 100% duty cycle maintains regulation during brown-out conditions. |
| USB Peripheral Hub | Portable Medical Sensor Node |
Use Scenario: Powering multi-port USB 2.0 hubs in battery-powered docking stations where EMI and board space are constrained. IC Role / Device Role / Timing Role: MIC2225-GJYMT-TR generates 1.8V logic and 2.5V PHY voltage from 5V USB input, with 2MHz operation minimizing filter component size. Use Value: Small 2mm×2mm footprint fits compact hub PCBs; independent shutdown reduces idle power to <5µA per rail. | Use Scenario: Providing regulated power to low-power ECG/SpO₂ sensor ASICs in wearable clinical monitors requiring long battery life and signal integrity. IC Role / Device Role / Timing Role: MIC2225-GJYMT-TR supplies 1.8V digital core and 2.5V analog front-end from coin-cell or small Li-ion, with thermal protection for sealed enclosures. Use Value: –40°C to +125°C rating ensures operation in body-worn thermal environments; LDO PSRR rejects switching noise from buck stage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output DC-DC + LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62748YBGR | Single 300mA buck + 200mA LDO; 1.8V/2.5V fixed; 2.5MHz switching; smaller 1.6mm×1.6mm DSBGA. | Lacks 600mA buck capability - unsuitable for higher-core-current processors or sustained 500mA loads. | Select if board space is critical and peak load ≤300mA; verify LDO noise spec (not published) meets analog sensor requirements. |
| RTQ2132BGQW | Dual 600mA bucks (no LDO); 1.8V/2.5V fixed; 2MHz; 12-pin 2mm×2mm QFN; includes I²C programmability. | No integrated LDO - requires external low-noise LDO for analog rails, increasing BOM and layout complexity. | Select if full digital control and margining are needed; add discrete LDO (e.g., TPS7A20) if noise-sensitive analog circuitry is present. |
Compared with TPS62748YBGR and RTQ2132BGQW, the MIC2225-GJYMT-TR uniquely combines 600mA buck capability with a verified 470µVRMS LDO in a single 2mm×2mm package - eliminating external LDO design effort while maintaining performance for mixed-signal portable systems.
Availability
MIC2225-GJYMT-TR is available at Aetrix Electronics and suitable for cellular phone power management, USB peripheral regulation, and portable medical sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC2225-GJYMT-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 power management, analog, and timing solutions before its acquisition by Microchip Technology in 2015. Known for high-efficiency, small-footprint regulators.
The MIC2225 product line was designed specifically for space-constrained portable electronics requiring dual-rail, low-noise, and thermally robust power conversion - targeting camera modules, application processors, and USB-connected devices.
FAQ
What are the exact output voltages configured in the MIC2225-GJYMT-TR?
The MIC2225-GJYMT-TR is factory-configured with fixed 1.8V output from its synchronous buck regulator and fixed 2.5V output from its integrated LDO. These values are laser-trimmed during production and do not require external feedback resistors - confirmed in the Ordering Information table (Marking Code GTJ, Voltage* = 1.8V/2.5V).
Does the MIC2225-GJYMT-TR require external compensation components?
No, the MIC2225-GJYMT-TR uses internal Type III compensation and is optimized for stability with a 2.2µF ceramic output capacitor on both rails. The datasheet explicitly states it is "stable with 2.2µF ceramic output capacitor" and warns against using >10µF due to potential instability - no external RC networks or compensation pins are provided or required.
How is thermal performance managed in the MIC2225-GJYMT-TR?
The MIC2225-GJYMT-TR incorporates thermal shutdown at 160°C (with 23°C hysteresis) and is packaged in a 10-pin Thin MLF® with an exposed thermal pad connected to PGND. Its θJA is 90°C/W, and the datasheet specifies operation up to +125°C junction temperature - design guidance recommends minimum 40mm² copper pour under the thermal pad for optimal heat dissipation in continuous 600mA operation.
Can the buck and LDO sections of the MIC2225-GJYMT-TR be enabled independently?
Yes, the MIC2225-GJYMT-TR provides fully independent control: EN (Pin 6) enables/disables only the buck regulator, while ENLDO (Pin 7) enables/disables only the LDO. Both inputs are active-high with 1.0V logic-high threshold, allowing precise sequencing - for example, powering the 1.8V core first, then asserting ENLDO after stabilization to bring up the 2.5V I/O rail.
What is the minimum input voltage required for the MIC2225-GJYMT-TR to maintain regulation on both outputs?
The MIC2225-GJYMT-TR requires ≥2.7V input to maintain regulation on both outputs. Below this, UVLO activates at 2.55V (typical), disabling both regulators. For the 2.5V LDO output, dropout is 210mV at 300mA - meaning it sustains regulation down to 2.71V input, consistent with the overall 2.7V minimum supply specification.
MIC2225-GJYMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-UFDFN, 10-TMLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 2MHz
- Voltage/Current - Output 1:
- 1.8V, 600mA
- Voltage/Current - Output 2:
- 2.5V, 300mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TMLF® (2x2)
MIC2225-GJYMT-TR FAQ
1.How can I place an order for MIC2225-GJYMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2225-GJYMT-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 MIC2225-GJYMT-TR reliable?
The price and inventory of MIC2225-GJYMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2225-GJYMT-TR is usually 5 days.
3.What payment methods are accepted for MIC2225-GJYMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2225-GJYMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2225-GJYMT-TR?
MIC2225-GJYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2225-GJYMT-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 MIC2225-GJYMT-TR?
For technical support, including MIC2225-GJYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2225-GJYMT-TR requirements.
6.How does Aetrix verify that MIC2225-GJYMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC2225-GJYMT-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 MIC2225-GJYMT-TR meets industry standards.
7.What is the process for return or replacement of MIC2225-GJYMT-TR?
All MIC2225-GJYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2225-GJYMT-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 MIC2225-GJYMT-TR part is unused and in its original packaging.
Return procedure for MIC2225-GJYMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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