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Microchip Technology MIC2225-G4YMT-TR
- Part No.:
- MIC2225-G4YMT-TR
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC2225-G4YMT-TR.pdf
- Description:
- IC REG DL BUCK/LNR 2MHZ 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:1,640
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Product details
Overview
MIC2225-G4YMT-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 (buck) and 1.2V (LDO) outputs. It operates from 2.7V–5.5V input, achieves >95% efficiency at full load, and targets core/I/O rail generation for application processors and camera DSPs in space-constrained portable systems.
For engineers reviewing the MIC2225-G4YMT-TR datasheet, MIC2225-G4YMT-TR pinout, MIC2225-G4YMT-TR application, or MIC2225-G4YMT-TR equivalent, key selection criteria include its dual-rail fixed-voltage configuration, 10-pin 2mm×2mm Thin MLF® package, ultra-low noise LDO output (470µVRMS), and independent enable control for each regulator section.
Technical Context
The MIC2225-G4YMT-TR implements a constant-frequency 2MHz PWM architecture with internal P-channel 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 for low-input dropout operation, while the LDO block features 210mV dropout at 300mA and 43dB PSRR at 1kHz.
Both regulators share independent logic-level enables (EN and ENLDO), analog/digital ground separation (AGND/PGND), and dedicated bias (BIAS) and analog supply (AVIN) pins to minimize switching noise coupling into the LDO path. The device integrates thermal shutdown, current limiting, and UVLO with 70mV hysteresis across –40°C to +125°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion, Li-polymer, and regulated 3.3V/5V rails without external pre-regulation. |
| Buck Output | 1.8V fixed - supplies core voltage for application processors requiring tight regulation (±2% over load/temperature). |
| LDO Output | 1.2V fixed - powers sensitive analog or I/O circuitry with ultra-low 470µVRMS noise (10Hz–100kHz) and 210mV dropout at 300mA. |
| Switching Frequency | 2MHz ±10% - enables use of small 2.2µH inductors and reduces EMI filtering requirements in compact layouts. |
| Efficiency | >95% at 100mA (VIN=3.6V, VOUT=1.2V) - minimizes thermal dissipation in sealed portable enclosures. |
| Quiescent Current | <5µA in shutdown (both EN and ENLDO low) - extends battery life in standby modes. |
| Junction Temperature | –40°C to +125°C - qualified for automotive infotainment and industrial handheld environments. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (Pb-free, NiPdAu lead finish, halogen-free mold compound), thermally enhanced with exposed thermal pad (MT suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 AGND | Analog ground reference | Return path for feedback, bias, and LDO control circuitry; must be isolated from PGND to prevent noise coupling. |
| 2 LDO | LDO output | 1.2V regulated output; requires 2.2µF ceramic capacitor directly at pin for stability and noise suppression. |
| 3 BIAS | Internal bias supply | Powered via internal 6Ω resistor from AVIN; bypassed with 0.1µF capacitor to suppress high-frequency ripple. |
| 4 AVIN | Analog supply input | Supplies LDO and control circuitry; tied externally to VIN but routed separately to reduce switching noise injection. |
| 5 FB | Buck feedback node | Internally connected to 1.8V output; no external divider needed for fixed-output variant MIC2225-G4YMT-TR. |
| 6 EN | Buck enable input | Active-high logic control; <0.2V disables buck stage, reducing IQ to <5µA and tri-stating SW output. |
| 7 ENLDO | LDO enable input | Active-high logic control; <0.2V disables LDO, reducing IQ to <5µA and disconnecting LDO output. |
| 8 VIN | Main power input | Supplies buck MOSFETs and current sensing; requires 1µF ceramic capacitor close to VIN–PGND loop. |
| 9 SW | Buck switch node | Connects to inductor; carries high di/dt PWM current; must be short, wide, and shielded from sensitive analog traces. |
| 10 PGND | Power ground return | High-current return path for buck stage; separate copper pour from AGND/SGND to avoid ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent regulators | Simultaneous 1.8V/600mA buck and 1.2V/300mA LDO outputs with separate EN/ENLDO controls enable flexible power sequencing and rail isolation. |
| Ultra-low noise LDO | 470µVRMS output noise (10Hz–100kHz) and 43dB PSRR at 1kHz allow clean power delivery to RF receivers and ADCs without additional filtering. |
| 2MHz constant-frequency PWM | Enables use of miniature 2.2µH inductors and reduces size of input/output capacitors versus lower-frequency alternatives. |
| Thermal and current protection | Integrated thermal shutdown (160°C trip, 23°C hysteresis) and cycle-by-cycle current limit (0.675A min) ensure robust operation under fault conditions. |
| Small-footprint packaging | 10-pin 2mm × 2mm Thin MLF® package with exposed thermal pad delivers high power density and improved thermal performance in <10mm² PCB area. |
Applications
| Smartphone Application Processor Core | Camera Module DSP Power |
|---|---|
Use Scenario: Powers ARM Cortex-A series CPU cores requiring tightly regulated 1.8V at up to 600mA during burst processing. IC Role / Device Role / Timing Role: Primary buck regulator providing main core voltage rail with fast transient response to handle dynamic load steps. Use Value: 2MHz switching enables rapid load-step recovery (<50µs turn-on time) and maintains <±2% output regulation across 0–600mA load range. | Use Scenario: Supplies 1.2V I/O and analog front-end for CMOS image sensors and ISP pipelines in mobile cameras. IC Role / Device Role / Timing Role: Low-noise LDO output delivering clean, ripple-free 1.2V to sensor analog blocks and high-speed serial interfaces. Use Value: 470µVRMS noise and 43dB PSRR suppress switching artifacts from adjacent buck stage, preventing image noise and timing jitter. |
| USB Peripheral Hub Controller | Portable Media Player SoC |
Use Scenario: Provides dual-rail power to USB 2.0 hub controllers requiring 1.8V core and 1.2V PHY/interface voltages. IC Role / Device Role / Timing Role: Dual-output regulator eliminating need for discrete DC/DC + LDO solutions, simplifying BOM and layout. Use Value: Independent EN/ENLDO pins allow staggered power-up sequences compliant with USB enumeration timing requirements. | Use Scenario: Powers multimedia SoCs in handheld players with integrated audio codecs, video decoders, and display controllers. IC Role / Device Role / Timing Role: Single-chip solution generating both high-efficiency core rail (1.8V buck) and low-noise peripheral rail (1.2V LDO). Use Value: >95% buck efficiency at mid-load extends battery runtime, while LDO stability ensures glitch-free audio playback and video rendering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231RGTR | Single 600mA buck only (no integrated LDO); 2.25MHz switching; requires external LDO for second rail. | Lacks native dual-rail integration - increases component count and board area for LDO-dependent loads. | Select when only buck rail is needed or when LDO requirements permit discrete implementation. |
| RT8059GQW | Dual buck (not buck+LDO); 1.5A/1.5A outputs; 2.5MHz; no LDO noise performance or ultra-low dropout capability. | Higher current but unsuitable for noise-sensitive analog loads due to absence of linear regulation stage. | Select for higher-current digital-only applications where LDO-grade cleanliness is unnecessary. |
Compared with TPS62231RGTR and RT8059GQW, the MIC2225-G4YMT-TR uniquely combines high-efficiency switching with ultra-low-noise linear regulation in one 2mm×2mm package - making it optimal for mixed-signal SoC power where rail isolation, noise immunity, and footprint are critical.
Availability
MIC2225-G4YMT-TR is available at Aetrix Electronics and suitable for smartphone application processor core supplies, camera module DSP power, and USB peripheral hub controller designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC2225-G4YMT-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 interface ICs before its acquisition by Microchip Technology in 2015. It emphasized high-efficiency, small-footprint solutions for portable electronics.
The MIC2225 product line was designed specifically for space-constrained, battery-powered applications requiring dual-rail power with minimal external components - targeting cellular phones, PDAs, and USB peripherals with stringent noise and thermal constraints.
FAQ
What are the fixed output voltages of the MIC2225-G4YMT-TR?
The MIC2225-G4YMT-TR provides two fixed output voltages: 1.8V from the synchronous buck regulator and 1.2V from the integrated LDO. These values are factory-trimmed and do not require external feedback resistors - the FB pin is internally connected to the 1.8V output for this variant.
Does the MIC2225-G4YMT-TR require external compensation components?
No, the MIC2225-G4YMT-TR uses Type III internal compensation optimized for 2.2µF ceramic output capacitors. External compensation is not required, and adding external components may destabilize the control loop. Layout adherence to recommended grounding and decoupling practices ensures stable operation.
Can the buck and LDO sections of the MIC2225-G4YMT-TR be enabled independently?
Yes, the MIC2225-G4YMT-TR features independent enable inputs: EN controls the buck regulator and ENLDO controls the LDO. Both are active-high logic inputs with thresholds of 1.0V (high) and 0.2V (low), allowing flexible power sequencing and individual rail shutdown to minimize system standby current.
What is the maximum continuous output current for each regulator in the MIC2225-G4YMT-TR?
The MIC2225-G4YMT-TR delivers up to 600mA from the buck regulator in PWM mode and up to 300mA from the LDO. These ratings assume proper thermal management - the 2mm×2mm Thin MLF® package has a θJA of 90°C/W, and junction temperature must remain ≤125°C under worst-case ambient and load conditions.
Is the MIC2225-G4YMT-TR RoHS-compliant and lead-free?
Yes, the MIC2225-G4YMT-TR is RoHS-compliant and lead-free, packaged in a Pb-free 10-pin 2mm×2mm Thin MLF® with NiPdAu lead finish and halogen-free mold compound - meeting JEDEC J-STD-020 moisture sensitivity level 3 and IPC/JEDEC J-STD-033 handling requirements.
MIC2225-G4YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-UFDFN, 10-TMLF®
- Packaging:
- Cut Tape (CT)
- 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:
- 1.2V, 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-G4YMT-TR FAQ
1.How can I place an order for MIC2225-G4YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2225-G4YMT-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-G4YMT-TR reliable?
The price and inventory of MIC2225-G4YMT-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-G4YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC2225-G4YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2225-G4YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2225-G4YMT-TR?
MIC2225-G4YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2225-G4YMT-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-G4YMT-TR?
For technical support, including MIC2225-G4YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2225-G4YMT-TR requirements.
6.How does Aetrix verify that MIC2225-G4YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC2225-G4YMT-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-G4YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC2225-G4YMT-TR?
All MIC2225-G4YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2225-G4YMT-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-G4YMT-TR part is unused and in its original packaging.
Return procedure for MIC2225-G4YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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