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Microchip Technology MIC2211-GKYML-TR
- Part No.:
- MIC2211-GKYML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFDFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC2211-GKYML-TR.pdf
- Description:
- IC REG LINEAR 1.8V/2.6V 10MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,890
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Product details
Overview
MIC2211-GKYML-TR from Micrel is a dual µCap low dropout regulator IC delivering 1.8V/2.6V fixed outputs, supporting 150mA on VOUT1 and 300mA on VOUT2, with 80mV dropout at 100mA and 48µA total quiescent current - ideal for baseband processor power in cellular handsets.
For engineers reviewing the MIC2211-GKYML-TR datasheet, MIC2211-GKYML-TR pinout, MIC2211-GKYML-TR application, or MIC2211-GKYML-TR equivalent, key selection criteria include dual-output sequencing capability, ceramic-capacitor stability, ultra-low ground current in active and shutdown states, and MLF™-10 package thermal performance.
Technical Context
The MIC2211-GKYML-TR integrates two independent LDO regulators sharing a common VIN input but featuring separate TTL-compatible enable pins (EN1, EN2) for individual output control. Each regulator uses a µCap architecture requiring only 1µF ceramic output capacitors and a 0.01µF bypass capacitor on CBYP to achieve high PSRR (60dB @ 1kHz) and low noise (30µVrms).
It operates across 2.25V–5.5V input range with thermal shutdown and current limit protection. The internal reference is bypassed via CBYP to reduce output voltage noise and improve ripple rejection, while the exposed pad (EP) connects to GND for thermal dissipation in the 3mm × 3mm MLF™ package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 1.8V (VOUT1), 2.6V (VOUT2) - fixed, factory-trimmed for ±1.0% initial accuracy |
| Max Output Current | 150mA on VOUT1, 300mA on VOUT2 - supports simultaneous core/I/O rail powering |
| Dropout Voltage | 80mV @ 100mA load - enables operation near battery end-of-life (e.g., 2.7V input for 2.6V output) |
| Quiescent Current | 48µA total (24µA per LDO) - extends battery life in standby mode |
| Input Voltage Range | 2.25V to 5.5V - compatible with Li-ion, Li-poly, and 3.3V/5V system rails |
| PSRR | 60dB @ 1kHz, 40dB @ 20kHz - suppresses switching noise from adjacent DC/DC converters |
| Thermal Protection | Integrated thermal shutdown - prevents damage during sustained overload or poor PCB heatsinking |
Pinout & Package
Package: 10-pin 3mm × 3mm MLF™ (MicroLeadFrame) with exposed thermal pad (EP), RoHS-compliant, Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Common input supply | Shared input for both LDOs; must be bypassed with ≥1µF ceramic capacitor close to pin |
| EN1 (Pin 2) | Enable for Regulator 1 | Active-high TTL logic input; drives VOUT1 on/off independently; requires ≥1.8V to enable |
| EN2 (Pin 3) | Enable for Regulator 2 | Active-high TTL logic input; drives VOUT2 on/off independently; allows staggered power-up sequencing |
| CBYP (Pin 4) | Reference bypass | Connects to 0.01µF capacitor to GND to reduce output noise and boost PSRR |
| NC (Pins 5,7,8) | No connection | Unbonded; must remain unconnected and unstubbed on PCB |
| GND (Pin 6 & EP) | Ground return | Pins 6 and exposed pad both connect to system GND; EP improves thermal resistance (θJA = 60°C/W) |
| VOUT2 (Pin 9) | Regulator 2 output | Delivers 2.6V @ up to 300mA; requires 1µF X7R/X5R ceramic capacitor for stability |
| VOUT1 (Pin 10) | Regulator 1 output | Delivers 1.8V @ up to 150mA; decoupled separately to avoid cross-regulator coupling |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDOs | Enables discrete power domain control - e.g., VOUT1 powers baseband core (1.8V), VOUT2 powers I/O interface (2.6V) |
| µCap ceramic-stable design | Eliminates need for large tantalum or aluminum electrolytic capacitors - reduces board area and BOM cost |
| Zero-off-mode shutdown | Draws only 2.0µA total when both EN1 and EN2 are low - critical for long-term battery storage |
| ±1.0% initial output accuracy | Meets tight voltage tolerance requirements of modern baseband processors without external trimming |
| Thermal & current limiting | Self-protecting under short-circuit or overtemperature conditions - no external circuitry required |
Applications
| Cellular Handset Power | Wireless Modem Baseband |
|---|---|
Use Scenario: Dual-rail power for GSM/UMTS baseband processor with separate core (1.8V) and I/O (2.6V) domains. IC Role / Device Role / Timing Role: Primary dual-output LDO supplying regulated voltages directly to processor VDDCORE and VDDIO pins. Use Value: 48µA quiescent current extends talk time; 80mV dropout maintains regulation down to 2.68V input - preserving runtime as Li-ion discharges. | Use Scenario: Compact power solution for embedded LTE modem module requiring low-noise 1.8V and 2.6V supplies. IC Role / Device Role / Timing Role: Local point-of-load regulator replacing discrete single-channel LDOs to save space and simplify layout. Use Value: Ceramic-capacitor stability eliminates ESR-related instability risks; 60dB PSRR rejects noise from RF power amplifier switching. |
| PDA Application Processor | Portable Media Player SoC |
Use Scenario: Power management for ARM-based PDA SoC with asymmetric voltage needs (1.8V core, 2.6V memory interface). IC Role / Device Role / Timing Role: Dual-LDO providing sequenced power-up via independent EN1/EN2 control to meet SoC boot timing requirements. Use Value: Independent enables allow controlled ramp-up order - preventing latch-up or bus contention during initialization. | Use Scenario: Low-noise bias for audio codec and display driver ICs in battery-powered media players. IC Role / Device Role / Timing Role: Clean, stable 1.8V/2.6V source isolating analog audio paths from digital switching noise. Use Value: 30µVrms output noise and 0.01µF CBYP bypass ensure SNR > 95dB in audio signal chain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC2211-GMYML-TR | Fixed 1.8V/2.8V outputs; 200mV higher dropout at full load on VOUT2 | Better suited for systems needing 2.8V I/O rail (e.g., SDIO, USB PHY) instead of 2.6V | Select when 2.8V interface compliance is required and margin exists for higher dropout |
| TSM10221DUALTR | 1.5V/2.6V outputs; 65µA quiescent current; requires larger 4.7µF output capacitors | Targets industrial temperature range (–40°C to +105°C) with tighter load regulation (±0.5%) | Choose for extended temp operation where lower accuracy and higher IQ are acceptable trade-offs |
Compared with MIC2211-GMYML-TR and TSM10221DUALTR, the MIC2211-GKYML-TR offers optimal balance of low dropout (80mV), ultra-low IQ (48µA), and 2.6V I/O compatibility - making it preferred for space-constrained, battery-sensitive handheld designs.
Availability
MIC2211-GKYML-TR is available at Aetrix Electronics and suitable for cellular handsets, wireless modems, and portable media players requiring stable component supply with long lifecycle support.
Supply support for MIC2211-GKYML-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 RF solutions before its acquisition by Microchip Technology in 2015.
The MIC2211 product line was designed specifically for ultra-low-power, dual-rail battery-operated devices - emphasizing minimal board footprint, ceramic capacitor compatibility, and precise voltage regulation in compact MLF™ packages.
FAQ
What is the maximum input voltage rating for the MIC2211-GKYML-TR?
The MIC2211-GKYML-TR has an absolute maximum input voltage of 7V, but its specified operating range is 2.25V to 5.5V. Exceeding 5.5V may cause permanent damage or violate safety margins defined in the datasheet. Always maintain VIN within 2.25V–5.5V for reliable operation of the MIC2211-GKYML-TR in production designs.
Does the MIC2211-GKYML-TR require external resistors to set output voltage?
No - the MIC2211-GKYML-TR is a fixed-output variant with factory-trimmed 1.8V and 2.6V regulators. External resistors are only needed for adjustable versions (e.g., MIC2211-AAYML). The MIC2211-GKYML-TR delivers its rated outputs without any external feedback components.
Can both outputs of the MIC2211-GKYML-TR be enabled simultaneously?
Yes - the MIC2211-GKYML-TR supports concurrent operation of both regulators. Applying logic-high signals (>1.8V) to both EN1 and EN2 enables VOUT1 (1.8V) and VOUT2 (2.6V) simultaneously. Independent control allows flexible sequencing, including staggered startup or selective shutdown for power optimization.
What type of output capacitor is recommended for the MIC2211-GKYML-TR?
X7R or X5R dielectric 1µF ceramic capacitors are recommended for each output of the MIC2211-GKYML-TR. These provide stable capacitance over temperature and ensure loop stability. Z5U or Y5V types are discouraged due to excessive capacitance drift (>50%), which may compromise regulation under varying thermal conditions.
Is the exposed pad (EP) on the MIC2211-GKYML-TR electrically connected?
Yes - the exposed pad (EP) of the MIC2211-GKYML-TR is internally connected to GND and must be soldered to a PCB ground plane. This connection is essential for thermal performance (θJA = 60°C/W) and electrical integrity. Leaving EP floating degrades thermal dissipation and may cause overheating or regulation failure.
MIC2211-GKYML-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, 2.6V
- 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-GKYML-TR FAQ
1.How can I place an order for MIC2211-GKYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2211-GKYML-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-GKYML-TR reliable?
The price and inventory of MIC2211-GKYML-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-GKYML-TR is usually 5 days.
3.What payment methods are accepted for MIC2211-GKYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2211-GKYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2211-GKYML-TR?
MIC2211-GKYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2211-GKYML-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-GKYML-TR?
For technical support, including MIC2211-GKYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2211-GKYML-TR requirements.
6.How does Aetrix verify that MIC2211-GKYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2211-GKYML-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-GKYML-TR meets industry standards.
7.What is the process for return or replacement of MIC2211-GKYML-TR?
All MIC2211-GKYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2211-GKYML-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-GKYML-TR part is unused and in its original packaging.
Return procedure for MIC2211-GKYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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