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Microchip Technology MIC2211-GOYML-TR
- Part No.:
- MIC2211-GOYML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFDFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC2211-GOYML-TR.pdf
- Description:
- IC REG LINEAR 1.8V/2.9V 10MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,990
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Product details
Overview
MIC2211-GOYML-TR from Micrel is a dual-output µCap low dropout regulator IC with fixed 1.8V/2.9V outputs, delivering 150mA on VOUT1 and 300mA on VOUT2. It operates from 2.25V to 5.5V input, achieves 1% initial output accuracy, 80mV dropout at 100mA, and draws only 48µA total quiescent current - optimized for space-constrained, battery-powered baseband processor power rails in cellular handsets.
For engineers reviewing the MIC2211-GOYML-TR datasheet, MIC2211-GOYML-TR pinout, MIC2211-GOYML-TR application, or MIC2211-GOYML-TR equivalent, key selection criteria include dual independent enable control (EN1/EN2), ceramic-capacitor stability (1µF per output), thermal shutdown, and ultra-low ground current in active and shutdown states.
Technical Context
The MIC2211-GOYML-TR integrates two independent LDO regulators sharing a common VIN and GND, each with dedicated CMOS-compatible enable inputs (EN1, EN2) and internal reference bypass (CBYP). Its µCap architecture eliminates need for large electrolytic capacitors, relying instead on small ceramic output caps (1µF) and a 0.01µF reference bypass cap for noise reduction and PSRR enhancement.
Each regulator features separate current limiting (150mA/300mA), thermal shutdown, and load regulation ≤1.5% across full output current range. Dropout voltage is specified at 120–190mV (VOUT1 @150mA) and 240–340mV (VOUT2 @300mA), with output accuracy maintained over –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | Fixed 1.8V (VOUT1) and 2.9V (VOUT2) - powers baseband I/O and core logic rails independently |
| Max Output Current | 150mA on VOUT1, 300mA on VOUT2 - supports dual-rail processor subsystems without external boost |
| Dropout Voltage | 80mV @ 100mA (typical) - enables operation down to VIN = 2.25V while maintaining regulation |
| Quiescent Current | 48µA total (24µA per LDO) - extends battery life in standby and light-load modes |
| Output Accuracy | +1.0% initial, +2.0% over temperature - ensures stable voltage margins for 1.8V/2.9V digital logic |
| PSRR | 60dB @ 1kHz, 40dB @ 20kHz - suppresses switching noise from adjacent DC/DC converters |
| Input Voltage Range | 2.25V to 5.5V - compatible with single-cell Li-ion, Li-poly, or 3.3V/5V system rails |
Pinout & Package
Package: 10-pin 3mm × 3mm MLF™ (MicroLeadFrame) leadless package with exposed thermal pad (EP connected to GND). RoHS-compliant, Pb-free, moisture sensitivity level (MSL) 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 required for turn-on; must not float |
| EN2 (Pin 3) | Regulator 2 enable | Independent active-high control for VOUT2; enables power sequencing flexibility |
| CBYP (Pin 4) | Reference bypass | Connects 0.01µF ceramic cap to GND to reduce output noise and improve PSRR |
| NC (Pins 5,7,8) | No connection | Unbonded pins; no internal connection; leave unconnected |
| GND (Pin 6 & EP) | Power ground | Primary ground return; EP must be soldered to PCB ground plane for thermal and electrical performance |
| VOUT2 (Pin 9) | Regulator 2 output | Delivers fixed 2.9V at up to 300mA; requires 1µF X7R/X5R ceramic output capacitor |
| VOUT1 (Pin 10) | Regulator 1 output | Delivers fixed 1.8V at up to 150mA; uses same capacitor requirements as VOUT2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enables | EN1 and EN2 allow staggered power-up/down of 1.8V and 2.9V rails - critical for processor reset sequencing |
| µCap ceramic-stable design | Stable with 1µF ceramic output caps per rail - eliminates bulkier tantalum/electrolytic, saving >50% board area |
| Zero-off-mode shutdown | Draws only 2.0µA total when both EN1 and EN2 are low - enables true system-level power gating |
| Thermal & current protection | Integrated thermal shutdown and foldback current limiting prevent damage during overload or ambient overheating |
| Low-noise reference bypass | CBYP pin accepts 0.01µF cap to reduce output RMS noise to 30µVrms (10Hz–100kHz) - improves ADC/SerDes signal integrity |
Applications
| Cellular Baseband Power | Wireless Modem Core Supply |
|---|---|
Use Scenario: Powers ARM-based baseband processor requiring strict 1.8V I/O and 2.9V core rails with tight sequencing. IC Role / Device Role / Timing Role: Dual-LDO voltage regulator providing independent, low-noise, sequenced power domains. Use Value: Eliminates need for discrete enable logic and external sequencing ICs; 48µA quiescent current extends talk time by >8% vs. legacy solutions. | Use Scenario: Supplies RF transceiver and digital baseband in 3G/4G LTE modems where EMI-sensitive analog sections coexist with high-speed digital logic. IC Role / Device Role / Timing Role: Low-PSRR, low-noise dual regulator isolating noisy digital supplies from sensitive RF bias rails. Use Value: 60dB PSRR at 1kHz reduces coupling of DC/DC ripple into RF synthesizer, improving EVM by 1.2dB. |
| PDA Application Processor Rail | Battery-Powered Industrial Sensor Hub |
Use Scenario: Delivers clean 1.8V and 2.9V to OMAP/PXA-class application processors in handheld PDAs with limited PCB real estate. IC Role / Device Role / Timing Role: Compact dual-LDO replacing two discrete regulators and associated passives. Use Value: 3mm × 3mm MLF package reduces footprint by 65% versus SOIC-8 dual-LDO alternatives. | Use Scenario: Powers microcontroller, BLE radio, and analog sensor front-end in remote, battery-operated environmental monitoring nodes. IC Role / Device Role / Timing Role: Ultra-low-IQ dual regulator enabling multi-year operation on coin-cell or Li-SOCl₂ batteries. Use Value: 48µA total IQ allows >10-year shelf life in sleep mode; thermal shutdown prevents field failure in sealed enclosures. |
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); larger 20-pin TSSOP package | Targets industrial controllers needing higher voltage rails; less suitable for space-constrained mobile designs | Select when 2.5V/3.3V rails are required and PCB area is not constrained |
| RT9164-1829GJ6 | Same 1.8V/2.9V outputs; 65µA IQ; 12-pin WDFN package; no CBYP pin for noise optimization | Lacks dedicated reference bypass - lower PSRR (50dB @1kHz) limits use in RF-adjacent layouts | Choose for cost-sensitive designs where ultra-low noise is non-critical |
Compared with TPS70245PWPR and RT9164-1829GJ6, the MIC2211-GOYML-TR delivers the lowest quiescent current (48µA), smallest footprint (3×3mm), and highest PSRR (60dB) - making it optimal for battery-powered, space-limited, noise-sensitive dual-rail applications.
Availability
MIC2211-GOYML-TR is available at Aetrix Electronics and suitable for cellular phones, wireless modems, and PDA power management requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2211-GOYML-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 designed specifically for ultra-low-power, dual-rail power delivery in portable communications devices - emphasizing minimal board area, ceramic capacitor compatibility, and precise voltage accuracy under dynamic load.
FAQ
What are the exact output voltages of the MIC2211-GOYML-TR?
The MIC2211-GOYML-TR provides fixed output voltages of 1.8V on VOUT1 and 2.9V on VOUT2, as confirmed by Micrel's ordering information table and voltage code mapping (G = 1.8V, O = 2.9V). These values are factory-trimmed and guaranteed within ±1.0% initial tolerance and ±2.0% over temperature.
Does the MIC2211-GOYML-TR require external resistors for voltage setting?
No, the MIC2211-GOYML-TR is a fixed-output variant and does not require external feedback resistors. Its 1.8V/2.9V outputs are internally configured; only the adjustable versions (e.g., MIC2211-AAYML) use ADJ1/ADJ2 pins with external resistor dividers.
Can both outputs of the MIC2211-GOYML-TR be enabled simultaneously?
Yes, the MIC2211-GOYML-TR supports independent or simultaneous enablement via EN1 and EN2. Driving both pins high activates both 1.8V and 2.9V outputs; driving either low disables only its corresponding regulator - enabling flexible power sequencing in systems like baseband processors.
What is the recommended output capacitor for the MIC2211-GOYML-TR?
Micrel specifies a minimum 1µF X7R or X5R ceramic capacitor per output (VOUT1 and VOUT2) for stability. Larger values improve transient response but are not required; Y5V/Z5U dielectrics are discouraged due to excessive capacitance drift over temperature.
Is the MIC2211-GOYML-TR pin-compatible with other MIC2211 variants?
Yes, all MIC2211 variants - including MIC2211-GOYML-TR - share the identical 10-pin 3mm × 3mm MLF™ package and pinout. Voltage differences are internal; EN1, EN2, CBYP, VIN, GND, VOUT1, and VOUT2 retain identical functions and locations across the family.
MIC2211-GOYML-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, 2.9V
- 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-GOYML-TR FAQ
1.How can I place an order for MIC2211-GOYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2211-GOYML-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-GOYML-TR reliable?
The price and inventory of MIC2211-GOYML-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-GOYML-TR is usually 5 days.
3.What payment methods are accepted for MIC2211-GOYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2211-GOYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2211-GOYML-TR?
MIC2211-GOYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2211-GOYML-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-GOYML-TR?
For technical support, including MIC2211-GOYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2211-GOYML-TR requirements.
6.How does Aetrix verify that MIC2211-GOYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2211-GOYML-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-GOYML-TR meets industry standards.
7.What is the process for return or replacement of MIC2211-GOYML-TR?
All MIC2211-GOYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2211-GOYML-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-GOYML-TR part is unused and in its original packaging.
Return procedure for MIC2211-GOYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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