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Microchip Technology MIC2211-GMYML-TR
- Part No.:
- MIC2211-GMYML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFDFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC2211-GMYML-TR.pdf
- Description:
- IC REG LINEAR 1.8V/2.8V 10MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,837
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Product details
Overview
MIC2211-GMYML-TR from Micrel is a dual-output µCap low dropout regulator IC delivering 1.8V/2.8V fixed outputs with 150mA and 300mA sourcing capability respectively, operating from 2.25V–5.5V input, featuring 80mV dropout at 100mA and 48µA total quiescent current - ideal for baseband processor power in compact cellular handsets.
For engineers reviewing the MIC2211-GMYML-TR datasheet, MIC2211-GMYML-TR pinout, MIC2211-GMYML-TR application, or MIC2211-GMYML-TR equivalent, key selection criteria include dual independent enable control, ceramic-capacitor stability, ±1% initial output accuracy, thermal shutdown protection, and MLF™ 3mm×3mm leadless package compatibility with high-density portable PCB layouts.
Technical Context
The MIC2211-GMYML-TR integrates two independent LDO regulators sharing a common VIN and GND but with separate EN1/EN2 control and VOUT1/VOUT2 outputs. Each regulator uses a µCap architecture optimized for stability with 1µF ceramic output capacitors and a 0.01µF reference bypass capacitor to achieve >60dB PSRR at 1kHz.
Regulator 1 delivers 1.8V at up to 150mA with 120mV typical dropout (150mA load); Regulator 2 delivers 2.8V at up to 300mA with 240mV typical dropout (300mA load). Both feature CMOS-compatible enable inputs (1.8V logic-high threshold), thermal shutdown, and current limiting - enabling precise sequencing and low-noise power delivery in battery-powered RF subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 1.8V (VOUT1) and 2.8V (VOUT2) - fixed, factory-trimmed for ±1% initial accuracy across temperature |
| Max Output Current | 150mA on VOUT1, 300mA on VOUT2 - supports simultaneous core/I/O rail powering without derating |
| Dropout Voltage | 80mV @ 100mA (typical) - enables operation down to 2.25V input while maintaining regulation on both rails |
| Quiescent Current | 48µA total (24µA per LDO) - minimizes standby power loss in always-on mobile subsystems |
| Input Voltage Range | 2.25V to 5.5V - compatible with single-cell Li-ion (2.7–4.2V), Li-poly, or 3.3V/5V system rails |
| PSRR | 60dB @ 1kHz, 40dB @ 20kHz - suppresses switching noise from adjacent DC/DC converters feeding baseband processors |
| Thermal Protection | Integrated thermal shutdown - prevents damage during sustained overload or poor PCB heatsinking |
Pinout & Package
Package: 10-pin 3mm × 3mm MLF™ (MicroLeadFrame) leadless package with exposed thermal pad (EP = GND), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Common input supply | Shared input for both LDOs; requires ≥1µF ceramic bypass close to pin |
| EN1 (Pin 2) | Regulator 1 enable | Active-high CMOS input; 1.8V min logic-high ensures reliable turn-on; must not float |
| EN2 (Pin 3) | Regulator 2 enable | Independent active-high control for VOUT2; enables flexible power sequencing |
| CBYP (Pin 4) | Reference bypass | Connects to 0.01µF ceramic cap to GND to reduce output noise and improve PSRR |
| NC (Pins 5, 7, 8) | No connection | Unbonded pins; must remain unconnected per design - no routing or stitching |
| GND (Pin 6 & EP) | Power ground | Primary GND terminal and exposed pad; must be soldered to large PCB copper area for thermal dissipation |
| VOUT2 (Pin 9) | 2.8V output | 300mA capable regulated output; requires 1µF X7R/X5R ceramic capacitor to GND |
| VOUT1 (Pin 10) | 1.8V output | 150mA capable regulated output; stable with same 1µF ceramic output capacitor as VOUT2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1 and EN2 allow staggered startup/shutdown of 1.8V core and 2.8V I/O rails - critical for ASIC power sequencing compliance |
| µCap ceramic-stable architecture | Stable with only 1µF X7R ceramic output caps per rail - eliminates bulk tantalum, saves board space and cost |
| Ultra-low ground current | 48µA total quiescent current - extends battery life in sleep modes of cellular modems and PDAs |
| Low-noise reference bypass | 0.01µF CBYP capacitor reduces output voltage noise to 30µVrms (10Hz–100kHz) - preserves ADC/SERDES signal integrity |
| Thermal + current protection | Auto-recovering thermal shutdown and foldback current limit prevent latch-up during short-circuit or overtemperature events |
Applications
| Cellular Baseband Power | Wireless Modem Core Supply |
|---|---|
Use Scenario: Powers ARM-based baseband processor requiring tightly regulated 1.8V core and 2.8V I/O rails from a single Li-ion cell. IC Role / Device Role / Timing Role: Dual-LDO voltage regulator providing independent, sequenced, low-noise DC supplies with zero-off-mode control. Use Value: Enables 150mA/300mA loads at <80mV dropout, preserving headroom for full battery discharge down to 2.7V while maintaining ±1% output accuracy. | Use Scenario: Supplies 1.8V logic and 2.8V RF interface in 3G/4G LTE data modems where EMI-sensitive analog sections coexist with digital logic. IC Role / Device Role / Timing Role: Low-PSRR, low-noise dual regulator isolating noisy digital domains from precision RF biasing networks. Use Value: 60dB PSRR at 1kHz and 30µVrms output noise ensure clean power for RF transceivers and high-speed serial interfaces. |
| PDA Application Processor Rail | Battery-Powered Industrial Sensor Hub |
Use Scenario: Delivers 1.8V core and 2.8V peripheral voltage to OMAP-like application processors in handheld PDAs with limited PCB area. IC Role / Device Role / Timing Role: Compact dual-LDO replacing discrete regulators and saving >30% board space via 3mm×3mm MLF™ footprint. Use Value: Ceramic-capacitor stability eliminates need for larger tantalum caps, reducing BOM count and improving long-term reliability under thermal cycling. | Use Scenario: Powers microcontroller (1.8V) and wireless transceiver (2.8V) in remote industrial sensor nodes powered by primary lithium batteries. IC Role / Device Role / Timing Role: Ultra-low-quiescent dual regulator minimizing standby current draw to extend multi-year battery life. Use Value: 48µA total IQ allows >10-year battery life in sleep mode (1µA system average), validated across –40°C to +125°C junction range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70245PWPR | 2.5V/3.3V fixed outputs; higher IQ (125µA); 16-pin HTSSOP package | Designed for DSP/microcontroller dual-rail systems with less stringent size constraints | Choose when fixed 2.5V/3.3V rails and higher PSRR (70dB) are prioritized over footprint and ultra-low IQ |
| ADP1621ARMZ-REEL | Single 1.8V LDO (150mA); no second output; 6-pin SOT-23 package | Requires external regulator for 2.8V rail - increases BOM and layout complexity | Choose only if 2.8V rail is already available or can be derived from another source; not a functional replacement |
Compared with TPS70245PWPR and ADP1621ARMZ-REEL, the MIC2211-GMYML-TR uniquely delivers matched 1.8V/2.8V outputs in a space-constrained 3mm×3mm package with industry-leading 48µA quiescent current - making it optimal for next-generation compact cellular and modem designs where board area and battery life are critical.
Availability
MIC2211-GMYML-TR is available at Aetrix Electronics and suitable for cellular phones, wireless modems, and PDA power management requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MIC2211-GMYML-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 analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC2211 product line was engineered for ultra-low-power, dual-rail power delivery in space-constrained portable electronics - emphasizing ceramic-capacitor compatibility, sequencing flexibility, and extended temperature operation.
FAQ
What are the exact output voltages of the MIC2211-GMYML-TR?
The MIC2211-GMYML-TR provides factory-trimmed fixed outputs of 1.8V on VOUT1 and 2.8V on VOUT2, with ±1.0% initial accuracy over temperature and load, verified per Micrel's M9999-101805 datasheet. These values are encoded in the part number suffix 'GMY' per Micrel's voltage code table (G = 1.8V, M = 2.8V).
Does the MIC2211-GMYML-TR require external resistors for output voltage setting?
No, the MIC2211-GMYML-TR is a fixed-output variant and does not require external feedback resistors. Its 1.8V/2.8V outputs are internally trimmed; resistor programming applies only to the adjustable MIC2211-ADJ/ADJ version. Using resistors with MIC2211-GMYML-TR would disrupt regulation.
Can both outputs of the MIC2211-GMYML-TR be enabled simultaneously?
Yes, the MIC2211-GMYML-TR supports concurrent operation of both regulators: drive EN1 and EN2 to ≥1.8V (logic high) to activate VOUT1 (1.8V) and VOUT2 (2.8V) simultaneously. Independent control is also supported - e.g., EN1 high/EN2 low powers only the 1.8V rail.
What ceramic capacitor types are recommended for the MIC2211-GMYML-TR outputs?
X7R or X5R dielectric 1µF ceramic capacitors are recommended for VOUT1 and VOUT2 per the MIC2211-GMYML-TR datasheet. These offer ±15% capacitance stability over temperature, ensuring consistent LDO stability. Y5V/Z5U types are discouraged due to >50% drift, risking instability under thermal variation.
Is the MIC2211-GMYML-TR RoHS-compliant and lead-free?
Yes, the MIC2211-GMYML-TR is Pb-free and RoHS-compliant, as confirmed by Micrel's ordering information table indicating "Pb-FREE" status for all -YML suffix variants, including MIC2211-GMYML. It meets JEDEC J-STD-020 moisture sensitivity level 3 requirements.
MIC2211-GMYML-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
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V, 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 150mA, 0.42V @ 300mA
- Current - Output:
- 150mA, 300mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 60dB ~ 40dB (1KHz ~ 20kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLF® (3x3)
MIC2211-GMYML-TR FAQ
1.How can I place an order for MIC2211-GMYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2211-GMYML-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 MIC2211-GMYML-TR reliable?
The price and inventory of MIC2211-GMYML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2211-GMYML-TR is usually 5 days.
3.What payment methods are accepted for MIC2211-GMYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2211-GMYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2211-GMYML-TR?
MIC2211-GMYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2211-GMYML-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 MIC2211-GMYML-TR?
For technical support, including MIC2211-GMYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2211-GMYML-TR requirements.
6.How does Aetrix verify that MIC2211-GMYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2211-GMYML-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 MIC2211-GMYML-TR meets industry standards.
7.What is the process for return or replacement of MIC2211-GMYML-TR?
All MIC2211-GMYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2211-GMYML-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 MIC2211-GMYML-TR part is unused and in its original packaging.
Return procedure for MIC2211-GMYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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