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Microchip Technology MIC5313-F6YMT-TR
- Part No.:
- MIC5313-F6YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC5313-F6YMT-TR.pdf
- Description:
- IC REG LINEAR 1.4V/1.5V 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MIC5313-F6YMT-TR from Micrel is a dual low-dropout linear regulator IC delivering two independent 300mA outputs at fixed 1.5V and 1.4V, operating from 1.7V input with 85mV dropout at full load, 1% output accuracy, and ultra-low ground current - ideal for powering core and I/O rails in space-constrained portable electronics.
For engineers reviewing the MIC5313-F6YMT-TR datasheet, MIC5313-F6YMT-TR pinout, MIC5313-F6YMT-TR application, or MIC5313-F6YMT-TR equivalent, key selection criteria include dual-rail voltage matching, thermal performance in 2mm × 2mm Thin MLF®, enable-controlled power sequencing, and stability with 1µF ceramic output capacitors.
Technical Context
The MIC5313-F6YMT-TR integrates two independent LDOs sharing a common bias supply (VBIAS) but with separate VIN1/VIN2 inputs and EN1/EN2 enables, enabling flexible rail sequencing and independent shutdown. Each regulator uses CMOS pass devices with internal reference and quick-start circuitry to support fast transient response.
It employs a dedicated VBIAS pin (2.5–5.5V) to power control circuitry separately from the main inputs, reducing dropout and improving PSRR - achieving 65dB at 1kHz and 40dB at 20kHz with 10nF bypass capacitor - while maintaining stability across –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.5V (LDO1) and 1.4V (LDO2), fixed - matches typical µProcessor core/I/O voltage pairs. |
| Max Output Current | 300mA per channel - supports moderate-power digital loads without external boost. |
| Dropout Voltage | 85mV at 300mA - enables operation from 1.7V input while regulating 1.5V/1.4V rails efficiently. |
| Accuracy | ±1% over temperature - ensures tight voltage margining for sensitive logic and memory interfaces. |
| Ground Current | 7µA per LDO active, <1µA in shutdown - extends battery life in always-on subsystems. |
| PSRR | 65dB @ 1kHz, 40dB @ 20kHz - suppresses switching noise from upstream DC-DC converters. |
| Stability | With ≥1µF ceramic output capacitor - eliminates need for bulk electrolytics in compact layouts. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (MLF-10), RoHS-compliant, NiPdAu lead finish, halogen-free mold compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1 | Main input for LDO1 | Supplies 1.5V output; accepts 1.7–5.5V; must be bypassed with 1µF ceramic. |
| VIN2 | Main input for LDO2 | Supplies 1.4V output; independent of VIN1 for mixed-supply systems. |
| VBIAS | Bias supply input | Powers internal reference/control circuitry (2.5–5.5V); improves PSRR and reduces dropout. |
| EN1 | Enable for LDO1 | Active-high CMOS input; <0.2V = off, >1.2V = on; must not float. |
| EN2 | Enable for LDO2 | Independent enable for 1.4V rail; allows staggered power-up or selective shutdown. |
| GND | Power ground | Common return for both LDOs and bias circuitry; requires low-inductance PCB connection. |
| CBYP | Bypass capacitor terminal | Connects 0.01µF capacitor to GND to reduce output noise and improve PSRR. |
| NC | No-connect | Not internally connected; leave unconnected on PCB. |
| VOUT2 | LDO2 output | Delivers regulated 1.4V; requires local 1µF ceramic capacitor for stability. |
| VOUT1 | LDO1 output | Delivers regulated 1.5V; electrically isolated from VOUT2 for independent load behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 300mA LDOs | Enables simultaneous regulation of core (1.5V) and I/O (1.4V) rails with no cross-coupling. |
| Ultra-low 85mV dropout at 300mA | Minimizes power loss and heat generation in battery-powered designs with tight Vin–Vout margins. |
| 1% output voltage accuracy | Meets stringent voltage tolerance requirements for modern µProcessors and DDR memory interfaces. |
| Zero-off-mode shutdown | Draws <1µA total when both EN1/EN2 are low - critical for long-term standby in portable devices. |
| Stable with 1µF ceramic output caps | Reduces board area and cost vs. traditional LDOs requiring 10–22µF tantalum or aluminum electrolytics. |
Applications
| Mobile Phones | GPS Navigation Devices |
|---|---|
Use Scenario: Powering application processor core (1.5V) and interface I/O (1.4V) from shared Li-ion battery. IC Role / Device Role / Timing Role: Dual-rail LDO providing clean, sequenced, low-noise DC supplies with independent enable control. Use Value: Enables efficient use of 3.0–4.2V battery range while meeting ±1% voltage tolerance and fast load transient response required by ARM-based SoCs. |
Use Scenario: Supplying GPS baseband IC (1.5V) and RF front-end bias (1.4V) in handheld navigation units. IC Role / Device Role / Timing Role: Low-noise dual LDO rejecting switching noise from PMU DC-DC stages via 65dB PSRR at 1kHz. Use Value: Maintains GNSS signal integrity and position accuracy by minimizing supply-induced phase noise in RF synthesizers. |
| Digital Still Cameras | Portable Media Players |
Use Scenario: Regulating image sensor analog core (1.5V) and digital interface (1.4V) during burst capture mode. IC Role / Device Role / Timing Role: Fast-transient LDO delivering stable rails despite rapid current spikes from CMOS image sensors. Use Value: Prevents image artifacts and frame drops by limiting output voltage deviation to <15mV during 300mA load steps. |
Use Scenario: Powering audio codec (1.4V) and display controller (1.5V) in flash-based MP4 players. IC Role / Device Role / Timing Role: Compact dual LDO supporting independent rail enable/disable for power domain management. Use Value: Extends playback time by reducing quiescent current to <1µA during pause mode via EN1/EN2 control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6223D1514MR-G | Fixed 1.5V/1.4V outputs, 200mA per channel, 150mV dropout at 200mA, SOT-26 package. | Lower current capability and higher dropout limit use in lighter-load subsystems only. | Select when board space permits SOT-26 and peak load stays below 200mA per rail. |
| Ricoh RP512K1514-TR-F | 1.5V/1.4V outputs, 300mA per channel, 120mV dropout at 300mA, DFN-10 2.5×2.5mm. | Larger footprint and higher dropout reduce efficiency in 1.7V-input battery systems. | Choose if existing layout accommodates 2.5mm × 2.5mm DFN and thermal margin exceeds 10°C. |
Compared with XC6223D1514MR-G and RP512K1514-TR-F, the MIC5313-F6YMT-TR delivers superior efficiency at low input voltages due to its 85mV dropout and maintains tighter accuracy (±1% vs. ±2%) - making it optimal for next-generation portable devices where battery runtime and voltage margin are critical.
Availability
MIC5313-F6YMT-TR is available at Aetrix Electronics and suitable for mobile phones, GPS navigation devices, and portable media players requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for MIC5313-F6YMT-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 and power management ICs before its acquisition by Microchip Technology in 2015.
The MIC5313-F6YMT-TR belongs to Micrel's low-voltage dual-LDO product line, designed specifically for battery-powered portable electronics demanding ultra-low dropout, fast transient response, and minimal quiescent current.
FAQ
What are the exact output voltages of the MIC5313-F6YMT-TR?
The MIC5313-F6YMT-TR provides fixed output voltages of 1.5V on VOUT1 and 1.4V on VOUT2, as confirmed by Micrel's ordering information table and marking code "FN6". These values are trimmed at wafer test and guaranteed within ±1% over –40°C to +125°C junction temperature.
Does the MIC5313-F6YMT-TR require external capacitors, and what values are mandatory?
Yes - the MIC5313-F6YMT-TR requires a 1µF ceramic capacitor on each input (VIN1, VIN2), a 1µF ceramic capacitor on each output (VOUT1, VOUT2), and a 0.01µF capacitor on CBYP for optimal noise and PSRR performance. All capacitors must be X5R/X7R dielectric; Y5V types are explicitly discouraged due to capacitance drift.
How does the VBIAS pin function in the MIC5313-F6YMT-TR, and what voltage range is acceptable?
The VBIAS pin powers the internal reference and control circuitry independently of VIN1/VIN2. It accepts 2.5V to 5.5V and must be bypassed with a 1µF ceramic capacitor to ground. Using VBIAS instead of VIN reduces dropout voltage and improves line regulation - a key differentiator of the MIC5313-F6YMT-TR versus conventional dual-LDOs.
Can the MIC5313-F6YMT-TR operate with no load on either output?
Yes - the MIC5313-F6YMT-TR remains stable and in regulation with zero load on either or both outputs, a feature verified in the "No-Load Stability" section of the datasheet. This makes it suitable for CMOS RAM keep-alive circuits and other always-on subsystems where one rail may be idle while the other is active.
What thermal derating applies to the MIC5313-F6YMT-TR at 300mA per channel?
At 300mA per channel with 1.8V input and 1.5V/1.4V outputs, the MIC5313-F6YMT-TR dissipates ~0.33W. With θJA = 80°C/W, maximum ambient temperature is ~98.6°C for reliable operation. Layout must minimize thermal resistance using exposed pad soldering and adequate copper pour - as detailed in the PCB Layout Recommendations section.
MIC5313-F6YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-UFDFN, 10-TMLF®
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.4V, 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 300mA, 0.2V @ 300mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 12 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB ~ 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-TMLF® (2x2)
MIC5313-F6YMT-TR FAQ
1.How can I place an order for MIC5313-F6YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5313-F6YMT-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 MIC5313-F6YMT-TR reliable?
The price and inventory of MIC5313-F6YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5313-F6YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5313-F6YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5313-F6YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5313-F6YMT-TR?
MIC5313-F6YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5313-F6YMT-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 MIC5313-F6YMT-TR?
For technical support, including MIC5313-F6YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5313-F6YMT-TR requirements.
6.How does Aetrix verify that MIC5313-F6YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5313-F6YMT-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 MIC5313-F6YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5313-F6YMT-TR?
All MIC5313-F6YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5313-F6YMT-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 MIC5313-F6YMT-TR part is unused and in its original packaging.
Return procedure for MIC5313-F6YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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