My Inquiry
My Account
Microchip Technology MIC2225-GMYMT-TR
- Part No.:
- MIC2225-GMYMT-TR
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC2225-GMYMT-TR.pdf
- Description:
- IC REG DL BUCK/LNR 2MHZ 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:1,915
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC2225-GMYMT-TR from Micrel is a dual-output power management IC integrating a 2MHz 600mA synchronous buck regulator and a 300mA low-dropout linear regulator (LDO), both operating from 2.7V–5.5V input. It delivers fixed 1.8V (buck) and 2.8V (LDO) outputs in a 10-pin 2mm × 2mm Thin MLF® package, targeting core/I/O rail generation for application processors and camera DSPs in portable electronics.
For engineers reviewing the MIC2225-GMYMT-TR datasheet, MIC2225-GMYMT-TR pinout, MIC2225-GMYMT-TR application, or MIC2225-GMYMT-TR equivalent, key selection criteria include dual-rail voltage pairing, 2MHz switching frequency for compact filter design, ultra-low noise LDO output (470µVRMS), thermal shutdown protection, and Pb-free RoHS-compliant packaging with –40°C to +125°C junction operation.
Technical Context
The MIC2225-GMYMT-TR implements independent PWM and LDO regulation blocks with separate enable controls (EN and ENLDO), allowing asynchronous power sequencing. Its buck stage uses internal P-channel and N-channel MOSFETs with 100% duty cycle capability and Type III compensation optimized for 2.2µF ceramic output capacitors.
The LDO block features 210mV dropout at 300mA, 43dB PSRR at 1kHz, and 470µVRMS integrated output noise (10Hz–100kHz). Both regulators share AVIN/BIAS biasing architecture with dedicated AGND and PGND pins to isolate analog control and high-current switching paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion and USB-powered systems without external pre-regulation. |
| Buck Output | Fixed 1.8V ±2% - supplies core voltage for application processors requiring tight regulation and fast transient response. |
| LDO Output | Fixed 2.8V ±2% - powers noise-sensitive analog peripherals such as camera sensors or audio codecs. |
| Switching Frequency | 2MHz ±10% - enables use of small 2.2µH inductors and 2.2µF ceramic capacitors, minimizing board area. |
| Efficiency (Buck) | >95% at 100mA, 3.6VIN → 1.8VOUT - reduces thermal load in space-constrained portable designs. |
| LDO Dropout | 210mV at 300mA - ensures stable 2.8V output even when input drops to 3.01V, extending battery runtime. |
| Quiescent Current | <5µA in full shutdown (EN = ENLDO = low) - critical for maintaining long standby time in battery-operated devices. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (Pb-free, NiPdAu lead finish, halogen-free mold compound), junction temperature range –40°C to +125°C.
| 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 terminal | Delivers regulated 2.8V; requires direct connection to 2.2µF ceramic capacitor for stability and noise filtering. |
| 3 BIAS | Internal bias supply node | Powered via internal 6Ω resistor from AVIN; bypassed with 0.1µF capacitor to suppress high-frequency noise. |
| 4 AVIN | Analog supply input | Provides power to LDO and control circuitry; must be tied to VIN but routed separately to minimize switching noise injection. |
| 5 FB | Feedback input | Internally connected to 1.8V output for fixed-voltage operation; no external divider required. |
| 6 EN | Buck regulator enable | Active-high logic input; <0.2V disables buck stage, reducing quiescent current to <5µA. |
| 7 ENLDO | LDO enable | Active-high logic input; <0.2V disables LDO, reducing its ground current to <5µA. |
| 8 VIN | Main power input | Supplies switching MOSFETs; requires local 1µF ceramic bypass to PGND for EMI suppression. |
| 9 SW | Switch node | Connects to 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 stage; forms low-inductance loop with VIN and SW to minimize voltage spikes. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-rail power solution | Eliminates need for two discrete regulators, saving PCB area and simplifying BOM for portable SoC applications. |
| 2.2µF ceramic capacitor compatibility | Reduces total output capacitance by >50% vs. traditional buck regulators requiring ≥10µF, lowering cost and footprint. |
| Independent enable control | Allows flexible power sequencing - e.g., boot LDO first for bias before enabling buck for core voltage. |
| Ultra-low LDO output noise | 470µVRMS (10Hz–100kHz) enables direct powering of RF front-ends and high-resolution ADCs without additional filtering. |
| Thermal and current protection | 160°C over-temperature shutdown with 23°C hysteresis and cycle-by-cycle current limiting prevent damage during overload or poor heatsinking. |
Applications
| Smartphone Application Processor Power | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Powers ARM-based application processor cores (1.8V) and I/O interfaces (2.8V) in slim smartphone designs with limited thermal headroom. IC Role / Device Role / Timing Role: Dual-output PMIC providing tightly regulated, sequenced DC rails with minimal external components. Use Value: Enables 2MHz switching to shrink passive size while maintaining >95% efficiency at light loads, extending battery life per charge cycle. | Use Scenario: Supplies clean 2.8V bias to CMOS image sensor and 1.8V to companion ISP in mobile camera modules. IC Role / Device Role / Timing Role: LDO delivers ultra-low-noise power for analog pixel readout; buck provides efficient digital domain supply. Use Value: 470µVRMS LDO noise prevents fixed-pattern noise in captured images; independent ENLDO allows sensor sleep mode without affecting core logic. |
| USB-Powered Peripheral Hub | Portable Media Player SoC |
Use Scenario: Generates 1.8V and 2.8V rails from 5V USB input for multi-port USB hub controllers and level translators. IC Role / Device Role / Timing Role: Buck regulates down from 5V with 100% duty cycle capability near dropout; LDO filters USB supply ripple. Use Value: 43dB PSRR at 1kHz rejects USB bus noise, ensuring reliable USB PHY operation without external LC filters. | Use Scenario: Powers application SoC and audio DAC in flash-based media players using single-cell Li-ion battery (2.7–4.2V). IC Role / Device Role / Timing Role: Dual regulator sustains operation across full battery discharge curve with thermal protection up to +125°C junction. Use Value: 210mV LDO dropout extends usable battery capacity by maintaining 2.8V output until cell voltage falls to 3.01V. |
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 |
|---|---|---|---|
| TPS62231DRYR | Single-output 600mA buck only; no integrated LDO; 3MHz switching; 1.2–5.5V adjustable output. | Requires external LDO for second rail; higher frequency enables smaller inductors but increases EMI sensitivity. | Select when only one regulated rail is needed or when system-level LDO selection offers better noise/PSRR trade-offs. |
| RT8059GQW | Dual buck (not buck+LDO); 600mA/300mA; 2MHz; fixed 1.8V/2.8V outputs; same 2×2 QFN package. | Higher switching noise on both rails; lacks LDO's PSRR and ultra-low noise benefits for analog circuits. | Select when both rails drive digital loads and board area is constrained, accepting higher noise for simpler layout. |
Compared with TPS62231DRYR and RT8059GQW, the MIC2225-GMYMT-TR uniquely combines high-efficiency switching with ultra-low-noise linear regulation in one die, making it optimal for mixed-signal SoC applications where analog rail cleanliness directly impacts signal integrity.
Availability
MIC2225-GMYMT-TR is available at Aetrix Electronics and suitable for smartphone power management, camera module biasing, USB peripheral regulation, and portable media player SoC supply requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC2225-GMYMT-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, timing, and interface ICs, acquired by Microchip Technology in 2015.
The MIC2225 product line was designed for ultra-compact, high-efficiency dual-rail power delivery in battery-powered portable electronics, emphasizing low noise, thermal robustness, and minimal external component count.
FAQ
What are the fixed output voltages of the MIC2225-GMYMT-TR?
The MIC2225-GMYMT-TR provides fixed 1.8V from its synchronous buck regulator and fixed 2.8V from its integrated LDO, as confirmed in the Ordering Information table and Pin Description section of the official datasheet. These values are laser-trimmed at wafer test and do not require external feedback resistors.
Does the MIC2225-GMYMT-TR require external compensation components?
No, the MIC2225-GMYMT-TR uses internal Type III compensation optimized for 2.2µF ceramic output capacitors on both rails. The datasheet explicitly states stability is achieved without external compensation networks, simplifying design and reducing bill-of-materials cost.
Can the MIC2225-GMYMT-TR operate with input voltage below 2.7V?
No - the absolute minimum operating input voltage is 2.7V, as specified in the Operating Ratings table. Below this, UVLO (undervoltage lockout) activates at 2.45V (rising threshold), disabling both regulators to prevent erratic behavior or excessive dropout in the LDO stage.
How is thermal performance managed in the MIC2225-GMYMT-TR?
The MIC2225-GMYMT-TR incorporates thermal shutdown at 160°C with 23°C hysteresis, plus cycle-by-cycle current limiting in the buck stage. Its 90°C/W junction-to-ambient thermal resistance (θJA) in the 2mm × 2mm Thin MLF® package requires minimal copper pour for handheld applications operating up to +125°C junction temperature.
Is the MIC2225-GMYMT-TR pin-compatible with other variants in the MIC2225 family?
Yes - all MIC2225 variants, including MIC2225-GMYMT-TR, share identical 10-pin 2mm × 2mm Thin MLF® packaging and pinout. Voltage options differ only in internal trimming; no PCB layout changes are needed when substituting between fixed-output versions like MIC2225-G4YMT or MIC2225-GFYMT.
MIC2225-GMYMT-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:
- 2.8V, 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-GMYMT-TR FAQ
1.How can I place an order for MIC2225-GMYMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2225-GMYMT-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-GMYMT-TR reliable?
The price and inventory of MIC2225-GMYMT-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-GMYMT-TR is usually 5 days.
3.What payment methods are accepted for MIC2225-GMYMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2225-GMYMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2225-GMYMT-TR?
MIC2225-GMYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2225-GMYMT-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-GMYMT-TR?
For technical support, including MIC2225-GMYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2225-GMYMT-TR requirements.
6.How does Aetrix verify that MIC2225-GMYMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC2225-GMYMT-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-GMYMT-TR meets industry standards.
7.What is the process for return or replacement of MIC2225-GMYMT-TR?
All MIC2225-GMYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2225-GMYMT-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-GMYMT-TR part is unused and in its original packaging.
Return procedure for MIC2225-GMYMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC2225-GMYMT-TR Tags
-
TPS6521905RHBR
Texas Instruments
-
MIC3385YHL-TR
Microchip Technology
-
A4402ELPTR-T
Allegro MicroSystems
-
LM26480SQ-AA/NOPB
Texas Instruments
-
A4402KLPTR-T
Allegro MicroSystems
-
BD71847AMWV-E2
ROHM Semiconductor
-
ADP5040ACPZ-1-R7
Analog Devices Inc.
-
LT3048IDC#TRPBF
Analog Devices Inc.
-
ADP5037ACPZ-R7
Analog Devices Inc.
-
XRP7714ILB-F
MaxLinear, Inc.
-
LTC3260EDE#TRPBF
Analog Devices Inc.
-
LTC3260EMSE#PBF
Analog Devices Inc.
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
