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Microchip Technology MIC2212-JSYML-TR
- Part No.:
- MIC2212-JSYML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFDFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC2212-JSYML-TR.pdf
- Description:
- IC REG LINEAR 2.5V/3.3V 10MLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC2212-JSYML-TR from Micrel is a dual µCap low-dropout linear regulator IC with integrated power-on reset (POR), delivering 2.5V/3.3V fixed outputs, 150mA and 300mA output currents respectively, 1% initial voltage accuracy, 80mV dropout at 100mA, and ultra-low 48µA ground current - ideal for space-constrained battery-powered baseband processor power sequencing in cellular handsets.
For engineers reviewing the MIC2212-JSYML-TR datasheet, MIC2212-JSYML-TR pinout, MIC2212-JSYML-TR application, or MIC2212-JSYML-TR equivalent, key selection criteria include dual-LDO current capability, POR delay programmability via external capacitor, ceramic-capacitor stability, zero-off-mode shutdown, and MLF-10 package thermal performance.
Technical Context
The MIC2212-JSYML-TR integrates two independent LDO regulators sharing a common input (VIN) but featuring separate enable inputs (EN1, EN2) and outputs (VOUT1 = 2.5V, VOUT2 = 3.3V). Regulator 2 incorporates a dedicated POR circuit monitoring its own 3.3V output, with delay set by a current-source-driven capacitor on the SET pin.
Its µCap architecture eliminates need for large electrolytic capacitors: both outputs stabilize with only 1µF X7R/X5R ceramic capacitors, while CBYP supports noise reduction via a 0.01µF reference bypass. Thermal shutdown and current-limit protection are built-in for both regulators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 2.5V (VOUT1) and 3.3V (VOUT2) - fixed, factory-trimmed outputs enabling direct powering of baseband I/O and core logic without external feedback. |
| Output Currents | 150mA (Regulator 1), 300mA (Regulator 2) - sufficient to supply digital baseband processors and RF interface circuitry simultaneously. |
| Dropout Voltage | 80mV @ 100mA load - enables operation down to VIN = 2.58V for VOUT1 and VIN = 3.38V for VOUT2, maximizing battery runtime in Li-ion systems. |
| Ground Current | 48µA total quiescent current - ensures minimal battery drain during standby; drops to ≤2.0µA in shutdown mode when EN1/EN2 = low. |
| Output Accuracy | ±1.0% initial, ±2.0% over –40°C to +125°C - guarantees stable voltage margins for sensitive microprocessor I/O and core rails. |
| POR Threshold | 90% (flag ON), 96% (flag OFF) of VOUT2 nominal - provides clean, glitch-free reset assertion/deassertion aligned precisely to 3.3V rail stability. |
| Enable Logic | TTL-compatible active-high (VIH ≥ 1.8V, VIL ≤ 0.6V) - allows direct interfacing with standard GPIOs without level-shifting. |
Pinout & Package
Package: 10-pin 3mm × 3mm MLF™ (MicroLeadFrame) leadless package with exposed pad (EP = GND), θJA = 60°C/W, RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Common Input Supply | Shared input for both LDOs; must be decoupled with ≥1µF ceramic capacitor near pin. |
| EN1 (Pin 2) | Regulator 1 Enable | Active-high TTL input controlling 2.5V output; floating prohibited - requires pull-down or MCU drive. |
| EN2 (Pin 3) | Regulator 2 Enable | Active-high TTL input controlling 3.3V output and POR function; independent sequencing control. |
| CBYP (Pin 4) | Reference Bypass | Connects to 0.01µF capacitor to GND to reduce output noise and improve PSRR above 1kHz. |
| SET (Pin 5) | POR Delay Timing | 1µA current source charging external capacitor to 1.25V threshold - sets POR delay up to ~1 second. |
| GND (Pin 6) | Power Ground | Main ground connection; must be tied to exposed pad (EP) and system ground plane for thermal and noise integrity. |
| NC (Pin 7) | No Connection | Internally unconnected - leave unpopulated or float; no routing required. |
| POR (Pin 8) | Open-Drain Reset Output | Active-low POR flag for VOUT2; requires external pull-up to VIN or VOUT2 for proper logic levels. |
| VOUT2 (Pin 9) | 3.3V Regulator Output | 300mA capable output; requires 1µF ceramic capacitor directly at pin for stability and transient response. |
| VOUT1 (Pin 10) | 2.5V Regulator Output | 150mA capable output; requires 1µF ceramic capacitor directly at pin; isolated from VOUT2 for independent load behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Dual µCap LDO Architecture | Stabilizes with only 1µF ceramic output capacitors per rail - eliminates bulkier tantalum/electrolytic parts, reducing board area and BOM cost. |
| Programmable POR Delay | Single external capacitor on SET pin sets POR timeout from microseconds to 1 second - enables precise power-rail sequencing alignment with processor boot requirements. |
| Zero-Off-Mode Shutdown | Ground current ≤2.0µA when EN1 and EN2 are low - extends shelf life and standby time in always-on mobile devices. |
| High PSRR at Key Frequencies | 60dB @ 1kHz, 40dB @ 20kHz (with CBYP = 10nF) - suppresses switching noise from DC-DC converters feeding VIN, protecting sensitive analog/RF sections. |
| Thermal & Overcurrent Protection | Internal thermal shutdown and foldback current limiting on both regulators - prevents damage during overload or poor PCB thermal design. |
Applications
| Cellular Baseband Power | Wireless Modem Sequencing |
|---|---|
Use Scenario: Powering dual-rail baseband processor in GSM/UMTS handset with strict startup timing and low-noise I/O supply. IC Role / Device Role / Timing Role: MIC2212-JSYML-TR delivers 2.5V I/O rail and 3.3V core rail while generating synchronized POR signal tied to 3.3V stability. Use Value: Eliminates discrete reset IC and dual-LDO discrete solution; reduces component count by ≥4 parts and saves >12 mm² PCB area. |
Use Scenario: Enabling clean power-up of LTE modem chipset requiring staggered 2.5V and 3.3V rails with POR confirmation before host initialization. IC Role / Device Role / Timing Role: MIC2212-JSYML-TR independently enables VOUT1 and VOUT2 via EN1/EN2, with POR asserting only after VOUT2 reaches 90% of 3.3V. Use Value: Guarantees reliable modem boot without firmware-level voltage polling; avoids boot failures due to premature host access. |
| PDA System Management | Portable Medical Monitor |
Use Scenario: Supplying processor, display driver, and USB PHY in handheld PDA with battery-life-critical sleep modes. IC Role / Device Role / Timing Role: MIC2212-JSYML-TR powers 2.5V logic and 3.3V interface rails, entering zero-current shutdown when both EN1 and EN2 are deasserted. Use Value: Achieves <5µA system standby current - extends battery life beyond 72 hours in deep-sleep state. |
Use Scenario: Providing regulated power to microcontroller and analog front-end in battery-operated ECG monitor requiring high-accuracy voltage references. IC Role / Device Role / Timing Role: MIC2212-JSYML-TR supplies low-noise 2.5V reference rail and 3.3V digital rail, with CBYP capacitor minimizing spectral noise density (<30µVrms). Use Value: Maintains ADC effective resolution >14 bits by limiting supply-induced noise contribution to <0.5 LSB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO-with-POR applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS795253DRBR | Single 2.5V LDO + standalone POR IC required; no integrated dual-rail or SET-programmable delay. | Requires additional IC and PCB area; POR timing less flexible than MIC2212-JSYML-TR's capacitor-set delay. | Choose when only one regulated rail is needed and POR timing is fixed or externally controlled. |
| MAX8869ETE+ | 2.5V/3.3V dual-LDO with POR, but uses larger 16-pin TQFN; higher 75µA quiescent current; no CBYP pin for noise optimization. | Less suitable for ultra-compact designs; lower PSRR above 10kHz limits noise-sensitive analog use. | Choose when board space permits larger package and higher IQ is acceptable for simplified layout. |
Compared with TPS795253DRBR and MAX8869ETE+, the MIC2212-JSYML-TR uniquely combines dual fixed-output LDOs, programmable POR delay, ceramic-capacitor stability, and ultra-low 48µA quiescent current in a 3mm × 3mm footprint - making it optimal for miniaturized, battery-sensitive portable electronics where rail sequencing and noise performance are critical.
Availability
MIC2212-JSYML-TR is available at Aetrix Electronics and suitable for cellular handsets, wireless modems, and portable medical monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2212-JSYML-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 MIC2212 product line was designed specifically for compact, battery-powered communication devices requiring dual-rail power with intelligent reset functionality - targeting cellular, PDA, and wireless infrastructure markets.
FAQ
What output voltages does the MIC2212-JSYML-TR provide?
The MIC2212-JSYML-TR provides fixed 2.5V on VOUT1 and 3.3V on VOUT2, factory-trimmed to ±1.0% initial accuracy. These outputs are not adjustable; the "JS" and "Y" codes in the part number explicitly denote the 2.5V/3.3V configuration per Micrel's voltage coding table.
How is the power-on reset (POR) delay set for the MIC2212-JSYML-TR?
The POR delay of the MIC2212-JSYML-TR is set by connecting an external capacitor between the SET pin (Pin 5) and GND. A 1µA internal current source charges this capacitor to a 1.25V threshold; delay = 1.25V / 1µA × C. For example, a 0.01µF capacitor yields ~12.5ms delay, while 0.1µF gives ~125ms.
Can the MIC2212-JSYML-TR operate with input voltage below 2.5V?
Yes - the MIC2212-JSYML-TR supports input voltages from 2.25V to 5.5V. With VOUT1 = 2.5V, minimum functional VIN is ~2.58V (accounting for 80mV dropout at light load); with VOUT2 = 3.3V, minimum VIN is ~3.38V. Below those, VOUT1 may regulate but VOUT2 will drop out.
What is the purpose of the CBYP pin on the MIC2212-JSYML-TR?
The CBYP pin (Pin 4) on the MIC2212-JSYML-TR connects to a 0.01µF capacitor to ground to bypass the internal voltage reference, reducing output noise and improving PSRR - especially above 1kHz. It has no effect on stability; omitting it degrades noise performance but does not cause oscillation.
Does the MIC2212-JSYML-TR require external components for basic operation?
Yes - the MIC2212-JSYML-TR requires at minimum: (1) ≥1µF ceramic input capacitor at VIN, (2) 1µF ceramic capacitor at each VOUT, and (3) pull-down resistors on EN1/EN2 if not actively driven. The CBYP and SET capacitors are optional but recommended for noise and POR timing control.
MIC2212-JSYML-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):
- 2.5V, 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, Power On Reset
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLF® (3x3)
MIC2212-JSYML-TR FAQ
1.How can I place an order for MIC2212-JSYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2212-JSYML-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 MIC2212-JSYML-TR reliable?
The price and inventory of MIC2212-JSYML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2212-JSYML-TR is usually 5 days.
3.What payment methods are accepted for MIC2212-JSYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2212-JSYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2212-JSYML-TR?
MIC2212-JSYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2212-JSYML-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 MIC2212-JSYML-TR?
For technical support, including MIC2212-JSYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2212-JSYML-TR requirements.
6.How does Aetrix verify that MIC2212-JSYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2212-JSYML-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 MIC2212-JSYML-TR meets industry standards.
7.What is the process for return or replacement of MIC2212-JSYML-TR?
All MIC2212-JSYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2212-JSYML-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 MIC2212-JSYML-TR part is unused and in its original packaging.
Return procedure for MIC2212-JSYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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