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Microchip Technology MIC5313-G4YMT-TR
- Part No.:
- MIC5313-G4YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC5313-G4YMT-TR.pdf
- Description:
- IC REG LINEAR 1.2V/1.8V 10TMLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC5313-G4YMT-TR from Micrel is a dual low-dropout linear regulator IC delivering two independent 300mA outputs at fixed 1.8V and 1.2V, operating from input voltages as low as 1.7V with ultra-low 85mV dropout at full load, and featuring separate enable pins and bias supply (VBIAS) for high-efficiency power management in portable battery-powered systems.
For engineers reviewing the MIC5313-G4YMT-TR datasheet, MIC5313-G4YMT-TR pinout, MIC5313-G4YMT-TR application, or MIC5313-G4YMT-TR equivalent, key selection criteria include dual-output voltage pairing, 1% output accuracy over –40°C to +125°C, zero-off-mode shutdown current (<1µA), stability with 1µF ceramic output capacitors, and thermal/current protection in a space-constrained 2mm × 2mm Thin MLF® package.
Technical Context
The MIC5313-G4YMT-TR integrates two independent LDO regulators sharing a common VBIAS rail (2.5–5.5V) while maintaining separate VIN1/VIN2 inputs (1.7–VBIAS V), enabling flexible power sequencing and independent enable control via EN1/EN2 (active-high CMOS). Each LDO uses a proprietary quick-start reference circuit to maintain fast transient response despite bypass capacitor use.
Its architecture separates bias and power paths: VBIAS supplies only the control circuitry (ground current ≤46µA), minimizing quiescent loss, while VIN1/VIN2 deliver regulated output current up to 300mA per channel. Dropout is minimized by leveraging VBIAS to reduce internal headroom, achieving 85mV at 300mA without requiring high input-to-output differential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Pair | 1.8V / 1.2V - Fixed dual-rail output enables simultaneous core/I/O supply in compact SoC systems. |
| Max Output Current | 300mA per LDO - Sustains full load on both channels without thermal shutdown under θJA = 80°C/W conditions. |
| Dropout Voltage | 85mV @ 300mA - Enables high efficiency at low VIN–VOUT differentials (e.g., 1.8V input → 1.8V/1.2V outputs). |
| Output Accuracy | ±1% (typ), ±2% (max) - Ensures tight voltage tolerance for sensitive digital logic and analog subsystems. |
| Ground Current | 7µA (per enabled LDO, light load), <1µA (shutdown) - Extends battery life in standby and deep-sleep modes. |
| PSRR | 65dB @ 1kHz - Suppresses ripple from noisy DC-DC sources feeding VIN1/VIN2, critical for RF and audio sections. |
| Enable Threshold | VIL ≤ 0.2V, VIH ≥ 1.2V - Compatible with 1.8V/2.5V/3.3V logic families; prevents floating-induced misoperation. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (leadless, RoHS-compliant, NiPdAu finish, halogen-free mold compound).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN1 | LDO1 input supply | Accepts 1.7V–VBIAS; powers LDO1 independently of VIN2 for rail isolation. |
| 2 VIN2 | LDO2 input supply | Accepts 1.7V–VBIAS; enables independent sourcing of 1.2V rail from lower-voltage battery tap. |
| 3 VBIAS | Bias supply input | 2.5–5.5V rail powering control circuitry; decoupling with 1µF ceramic reduces noise injection. |
| 4 EN1 | LDO1 enable | Active-high CMOS input; drives LDO1 into zero-off-mode (<1µA) when pulled low. |
| 5 EN2 | LDO2 enable | Active-high CMOS input; allows independent shutdown of 1.2V rail during peripheral sleep. |
| 6 GND | Power ground | Common return for both LDOs and bias circuitry; requires low-inductance PCB connection. |
| 7 CBYP | Bypass capacitor terminal | Connects to 0.01µF capacitor to filter internal reference noise; improves PSRR and output noise (30µVRMS). |
| 8 NC | No connect | Not internally bonded; must remain unconnected per design. |
| 9 VOUT2 | LDO2 output | Delivers regulated 1.2V; stable with ≥1µF X7R/X5R ceramic output capacitor. |
| 10 VOUT1 | LDO1 output | Delivers regulated 1.8V; supports fast transient loads typical of digital I/O interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1/EN2 allow selective activation of 1.8V and 1.2V rails-enabling dynamic power gating in multi-voltage SoCs. |
| Ultra-low dropout (85mV @ 300mA) | Minimizes power loss and heat generation in battery-critical applications where input voltage margin is tight. |
| Stable with 1µF ceramic output caps | Eliminates need for large, costly tantalum or aluminum electrolytics-reducing BOM cost and board area. |
| Zero-off-mode shutdown | Reduces system standby current to sub-µA levels, extending shelf life and runtime in always-on portable devices. |
| Integrated thermal & current protection | Prevents damage during overload or ambient temperature rise-no external circuitry required for robust operation. |
Applications
| Mobile Phones | GPS Navigation Devices |
|---|---|
Use Scenario: Powering baseband processor core (1.2V) and application processor I/O (1.8V) from shared Li-ion cell. IC Role / Device Role / Timing Role: Dual-rail LDO providing isolated, low-noise, sequenced voltage domains with independent enable control. Use Value: Enables simultaneous core/I/O operation with minimal voltage droop during burst transmission, improving signal integrity and battery efficiency. |
Use Scenario: Supplying GPS RF front-end (1.2V) and digital baseband (1.8V) in handheld navigation units. IC Role / Device Role / Timing Role: Low-PSRR LDO pair rejecting switching noise from adjacent DC-DC converters feeding VIN1/VIN2. Use Value: Maintains GPS acquisition sensitivity by suppressing 1–20kHz ripple that would otherwise degrade RF SNR. |
| Portable Media Players | Digital Still Cameras |
Use Scenario: Delivering 1.8V to NAND flash interface and 1.2V to image signal processor (ISP) in MP3/video players. IC Role / Device Role / Timing Role: Fast-transient LDO supporting rapid power-state transitions during file read/write and display backlight changes. Use Value: Prevents ISP clock jitter and NAND timing violations caused by load-induced output sag during burst data transfers. |
Use Scenario: Powering CMOS image sensor analog front-end (1.2V) and digital controller (1.8V) in compact point-and-shoot cameras. IC Role / Device Role / Timing Role: Ultra-low-noise dual LDO ensuring clean analog supply for pixel readout and stable digital supply for timing control. Use Value: Reduces fixed-pattern noise and quantization error by limiting output voltage noise to 30µVRMS (10Hz–100kHz). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70245PWPR | Fixed 1.8V/2.5V outputs; higher 160mV dropout at 300mA; requires 2.2µF min output cap. | Not suitable for 1.2V-sensitive loads (e.g., modern ARM cores); less efficient at low VIN–VOUT differentials. | Select only if 2.5V rail is required and 1.2V is unavailable elsewhere in system. |
| RT9013-18GQW | Single-channel 1.8V LDO (300mA); no 1.2V output; 120mV dropout; no VBIAS or CBYP pins. | Requires second regulator for 1.2V rail-increasing component count, layout area, and BOM cost. | Use only when dual-rail integration is unnecessary and board space permits discrete regulation. |
Compared with TPS70245PWPR and RT9013-18GQW, the MIC5313-G4YMT-TR uniquely delivers matched 1.8V/1.2V outputs with lowest dropout, integrated bias architecture, and zero-off-mode capability-making it optimal for space- and battery-constrained dual-rail portable designs.
Availability
MIC5313-G4YMT-TR is available at Aetrix Electronics and suitable for mobile phones, GPS navigation devices, portable media players, digital still cameras, and PDAs requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MIC5313-G4YMT-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 mixed-signal ICs before its acquisition by Microchip Technology in 2015.
The MIC5313-G4YMT-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-G4YMT-TR?
The MIC5313-G4YMT-TR provides fixed dual outputs: 1.8V on VOUT1 (pin 10) and 1.2V on VOUT2 (pin 9). This pairing is confirmed by the ordering information table in the datasheet, where "G4" marking corresponds to 1.8V/1.2V configuration. Output accuracy is ±1% typical over –40°C to +125°C junction temperature.
Does the MIC5313-G4YMT-TR require external components for stability?
Yes-the MIC5313-G4YMT-TR requires a 1µF ceramic capacitor on each output (VOUT1 and VOUT2), a 1µF capacitor on VBIAS, and a 0.01µF capacitor on CBYP for optimal noise and PSRR performance. Input capacitors (1µF each on VIN1 and VIN2) are also mandatory. X7R or X5R dielectrics are recommended; Y5V is not supported due to capacitance drift.
How does the VBIAS pin function in the MIC5313-G4YMT-TR?
The VBIAS pin (pin 3) supplies power exclusively to the MIC5313-G4YMT-TR's internal reference, error amplifier, and control circuitry at 2.5–5.5V. It decouples bias current from power paths, reducing ground current to ≤46µA and enabling ultra-low dropout by lowering internal headroom requirements. A 1µF ceramic capacitor to ground is required for stability.
What is the shutdown current of the MIC5313-G4YMT-TR?
When either EN1 or EN2 is pulled low, the corresponding LDO enters zero-off-mode, drawing ≤1.0µA total ground current (typical 0.01µA). With both enables disabled, the MIC5313-G4YMT-TR consumes negligible current-critical for battery longevity in always-on portable devices like GPS trackers and media players.
Is the MIC5313-G4YMT-TR compatible with lead-free reflow processes?
Yes-the MIC5313-G4YMT-TR uses a RoHS-compliant 2mm × 2mm Thin MLF® package with NiPdAu lead finish, rated for lead-free soldering at 260°C for 3 seconds. The package is halogen-free and qualified per JEDEC J-STD-020 moisture sensitivity level (MSL) 3, requiring bake prior to reflow if exposed beyond floor life.
MIC5313-G4YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-UFDFN, 10-TMLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V, 1.8V
- 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-G4YMT-TR FAQ
1.How can I place an order for MIC5313-G4YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5313-G4YMT-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-G4YMT-TR reliable?
The price and inventory of MIC5313-G4YMT-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-G4YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5313-G4YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5313-G4YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5313-G4YMT-TR?
MIC5313-G4YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5313-G4YMT-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-G4YMT-TR?
For technical support, including MIC5313-G4YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5313-G4YMT-TR requirements.
6.How does Aetrix verify that MIC5313-G4YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5313-G4YMT-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-G4YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5313-G4YMT-TR?
All MIC5313-G4YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5313-G4YMT-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-G4YMT-TR part is unused and in its original packaging.
Return procedure for MIC5313-G4YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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