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Microchip Technology MIC2211-PSYML-TR
- Part No.:
- MIC2211-PSYML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFDFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC2211-PSYML-TR.pdf
- Description:
- IC REG LINEAR 3V/3.3V 10MLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC2211-PSYML-TR from Micrel is a dual-output µCap low dropout regulator IC delivering 3.0V/3.3V fixed outputs with independent TTL-compatible enable control, 80mV dropout at 100mA, 48µA total quiescent current, and ±1.0% initial output accuracy - ideal for powering baseband and application processors in compact portable electronics.
For engineers reviewing the MIC2211-PSYML-TR datasheet, MIC2211-PSYML-TR pinout, MIC2211-PSYML-TR application, or MIC2211-PSYML-TR equivalent, key selection criteria include dual-LDO current capability (150mA/300mA), ceramic-capacitor stability, thermal shutdown protection, and MLF™-10 package compatibility with space-constrained PCB layouts.
Technical Context
The MIC2211-PSYML-TR integrates two independent LDO regulators sharing a common input (VIN) but featuring separate EN1/EN2 control and dedicated VOUT1/VOUT2 outputs. Each regulator uses a µCap architecture optimized for stability with 1µF ceramic output capacitors and a 0.01µF reference bypass capacitor.
It operates across 2.25V–5.5V input voltage range, delivers ±2.0% output accuracy over –40°C to +125°C junction temperature, and incorporates current limit protection (150mA/300mA) and thermal shutdown - all within a single 3mm × 3mm MLF™ package with exposed pad thermal management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 3.0V (VOUT1) and 3.3V (VOUT2) - fixed, non-adjustable outputs per ordering code PSYML. |
| Max Output Current | 150mA on VOUT1, 300mA on VOUT2 - supports mixed-voltage core/I/O rail sequencing. |
| Dropout Voltage | 80mV @ 100mA load - enables operation near battery end-of-life (e.g., 3.1V input sustaining 3.0V output). |
| Quiescent Current | 48µA total (24µA per LDO) - minimizes standby power in always-on subsystems. |
| Accuracy | ±1.0% initial, ±2.0% over temperature - ensures reliable logic-level compliance for 3.0V/3.3V interfaces. |
| PSRR | 60dB @ 1kHz, 40dB @ 20kHz - suppresses switching noise from upstream DC/DC converters. |
| Thermal Protection | Integrated thermal shutdown - prevents damage during sustained overload or poor PCB heat sinking. |
Pinout & Package
Package: 10-pin 3mm × 3mm MLF™ (MicroLeadFrame) with exposed thermal pad (EP), RoHS-compliant, moisture-sensitive level 3.
| 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) | Regulator 1 enable | Active-high TTL/CMOS input; ≥1.8V enables VOUT1; floating prohibited. |
| EN2 (Pin 3) | Regulator 2 enable | Active-high TTL/CMOS input; ≥1.8V enables VOUT2; independent of EN1 for flexible power sequencing. |
| CBYP (Pin 4) | Reference bypass | Connects to 0.01µF capacitor to GND to reduce output noise and improve PSRR. |
| NC (Pins 5,7,8) | No connection | Not internally bonded; must remain unconnected on PCB. |
| GND (Pin 6 & EP) | Power ground | Pins 6 and exposed pad (EP) are internally tied; must be soldered to large PCB ground plane for thermal and electrical performance. |
| VOUT2 (Pin 9) | 300mA output | Delivers regulated 3.3V; requires 1µF X7R/X5R ceramic capacitor to GND for stability. |
| VOUT1 (Pin 10) | 150mA output | Delivers regulated 3.0V; requires 1µF X7R/X5R ceramic capacitor to GND for stability. |
Key Features
| Feature | Design Value |
|---|---|
| µCap ceramic-stable design | Eliminates need for large electrolytic or tantalum output capacitors - reduces board area and BOM cost. |
| Independent dual-enable control | EN1 and EN2 allow staggered startup/shutdown sequencing between core (3.0V) and I/O (3.3V) rails. |
| Ultra-low ground current | 48µA total quiescent current enables >1-year battery life in low-duty-cycle portable devices. |
| Low-noise reference bypass | 0.01µF CBYP capacitor reduces output RMS noise to 30µVrms (10Hz–100kHz), critical for RF/baseband sections. |
| Robust protection suite | Includes thermal shutdown and current limiting on both outputs - prevents failure under short-circuit or overtemperature conditions. |
Applications
| Cellular Phone Power Management | Wireless Modem Baseband Supply |
|---|---|
Use Scenario: Dual-rail power for baseband processor (3.0V core) and RF transceiver interface (3.3V I/O) in GSM/UMTS handsets. IC Role / Device Role / Timing Role: Primary dual-LDO regulator providing sequenced, low-noise, battery-efficient DC power. Use Value: Enables simultaneous 3.0V/3.3V operation from single Li-ion cell while maintaining <80mV dropout and <50µA quiescent draw. | Use Scenario: Powering LTE/Wi-Fi modem SoC requiring isolated 3.0V digital core and 3.3V analog/IO supplies. IC Role / Device Role / Timing Role: Compact dual-output LDO delivering stable, low-ripple voltage rails with independent enable control. Use Value: Reduces component count vs. discrete LDOs and avoids instability issues associated with non-ceramic-capable regulators. |
| PDA Application Processor Rail | Portable GPS Receiver Core Supply |
Use Scenario: Supplying ARM-based application processor with 3.0V core and 3.3V peripheral bus in handheld PDAs. IC Role / Device Role / Timing Role: Dual-channel voltage regulator supporting dynamic voltage scaling and selective rail shutdown. Use Value: Independent EN1/EN2 pins allow OS-controlled power gating of unused peripherals without affecting core voltage. | Use Scenario: Providing ultra-low-noise 3.0V supply to GPS baseband IC and 3.3V to RF front-end in battery-powered navigation units. IC Role / Device Role / Timing Role: Low-noise, ceramic-stable dual LDO minimizing phase noise impact on GPS signal acquisition. Use Value: 30µVrms output noise and 60dB PSRR at 1kHz ensure clean power for sensitive GNSS receivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70245PWPR | 200mA/400mA outputs, 16-pin HTSSOP, higher quiescent current (130µA), no CBYP pin | Requires larger PCB area and lacks reference bypass for noise-sensitive designs | Preferred when higher output current or thermal pad access is needed; not suitable for ultra-low-noise 3.0V/3.3V systems |
| ADP3338ARMZ-3.0-3.3-R7 | Fixed 3.0V/3.3V outputs, 10-pin MSOP, 100µA quiescent current, no independent enables | Single enable controls both outputs - limits power sequencing flexibility | Appropriate for simpler dual-rail systems where rail independence is unnecessary and MSOP footprint is acceptable |
Compared with TPS70245PWPR and ADP3338ARMZ-3.0-3.3-R7, the MIC2211-PSYML-TR uniquely combines ultra-low quiescent current (48µA), independent enable control, and dedicated reference bypass - making it optimal for noise-critical, battery-constrained dual-rail applications where board space and standby power are primary constraints.
Availability
MIC2211-PSYML-TR is available at Aetrix Electronics and suitable for cellular phones, wireless modems, and PDAs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2211-PSYML-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 high-performance analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC2211 product line was designed specifically for space- and power-constrained portable electronics, emphasizing dual-output flexibility, ceramic-capacitor compatibility, and ultra-low quiescent current in miniature leadless packages.
FAQ
What output voltages does the MIC2211-PSYML-TR provide?
The MIC2211-PSYML-TR provides fixed output voltages of 3.0V on VOUT1 and 3.3V on VOUT2, as defined by its PSYML ordering code. These values are factory-trimmed and non-adjustable; the device does not support external feedback resistors for voltage programming.
Can the MIC2211-PSYML-TR operate from a single-cell lithium-ion battery?
Yes, the MIC2211-PSYML-TR supports input voltages from 2.25V to 5.5V and maintains regulation down to 80mV dropout at 100mA. This allows reliable operation across the full discharge curve of a single-cell Li-ion battery (4.2V–3.0V), sustaining 3.0V/3.3V outputs until battery voltage drops below ~3.08V/3.38V respectively.
What is the purpose of the CBYP pin on the MIC2211-PSYML-TR?
CBYP (Pin 4) connects to a 0.01µF capacitor to ground to bypass the internal voltage reference, reducing output noise to 30µVrms and improving PSRR by up to 20dB at 1kHz. Leaving CBYP open degrades noise performance but does not affect basic regulation functionality.
Does the MIC2211-PSYML-TR require external output capacitors, and what type is recommended?
Yes, the MIC2211-PSYML-TR requires a 1µF X7R or X5R ceramic capacitor on each output (VOUT1 and VOUT2) for stability. Z5U or Y5V dielectrics are not recommended due to excessive capacitance drift over temperature; X7R offers ±15% variation across –40°C to +125°C.
How is thermal management handled on the MIC2211-PSYML-TR?
The MIC2211-PSYML-TR uses a 3mm × 3mm MLF™ package with an exposed thermal pad (EP) electrically and thermally connected to GND. For effective thermal management, the EP must be soldered to a minimum 100mm² PCB copper area with ≥4 thermal vias to inner ground planes - enabling θJA of 60°C/W and safe operation at full load up to +125°C junction temperature.
MIC2211-PSYML-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):
- 3V, 3.3V
- 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-PSYML-TR FAQ
1.How can I place an order for MIC2211-PSYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2211-PSYML-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-PSYML-TR reliable?
The price and inventory of MIC2211-PSYML-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-PSYML-TR is usually 5 days.
3.What payment methods are accepted for MIC2211-PSYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2211-PSYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2211-PSYML-TR?
MIC2211-PSYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2211-PSYML-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-PSYML-TR?
For technical support, including MIC2211-PSYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2211-PSYML-TR requirements.
6.How does Aetrix verify that MIC2211-PSYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2211-PSYML-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-PSYML-TR meets industry standards.
7.What is the process for return or replacement of MIC2211-PSYML-TR?
All MIC2211-PSYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2211-PSYML-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-PSYML-TR part is unused and in its original packaging.
Return procedure for MIC2211-PSYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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