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Microchip Technology MIC5310-NDYML-TR
- Part No.:
- MIC5310-NDYML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC5310-NDYML-TR.pdf
- Description:
- IC REG LINEAR 1.85V/2.85V 8MLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC5310-NDYML-TR from Micrel is a dual-channel ultra-low dropout (ULDO™) linear regulator delivering fixed 2.85V and 1.85V outputs, each rated for 150mA continuous current, in an 8-pin 2mm × 2mm MLF® package. It features 35mV dropout at full load, 70dB PSRR at 1kHz, 30µVRMS output noise, ±2% initial output accuracy, and µCap stability with only 1µF ceramic output capacitors - enabling compact, low-noise power for RF-sensitive camera modules and imaging sensors.
For engineers reviewing the MIC5310-NDYML-TR datasheet, MIC5310-NDYML-TR pinout, MIC5310-NDYML-TR application, or MIC5310-NDYML-TR equivalent, key selection considerations include dual independent enable control (EN1/EN2), thermal shutdown protection, 75µA quiescent current per channel, fast 30µs startup, and compatibility with 0.1µF bypass capacitor on BYP pin to reduce reference noise.
Technical Context
The MIC5310-NDYML-TR integrates two independent CMOS-based ULDO regulators sharing a common input (VIN) and ground (GND), each with dedicated enable (EN1/EN2), output (VOUT1/VOUT2), and bypass (BYP) terminals. Its µCap architecture eliminates need for large output capacitance while maintaining stability across –40°C to +125°C junction temperature range.
Each regulator operates with 2.3V–5.5V input, delivers ±3% output voltage accuracy over temperature, and exhibits excellent transient response due to high bandwidth and low output impedance. The exposed pad (EP) must be connected to GND for thermal performance and electrical integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 2.85V (VOUT1) and 1.85V (VOUT2), fixed and non-adjustable - enables direct powering of core logic and I/O rails in multi-rail portable systems. |
| Max Output Current | 150mA per channel - supports moderate-current analog/RF blocks like image sensor analog front-ends without external boost stages. |
| Dropout Voltage | 35mV @ 150mA - allows operation with minimal headroom (e.g., 3.0V input for 2.85V rail), preserving battery runtime in Li-ion-powered devices. |
| PSRR | >70dB @ 1kHz - suppresses switching noise from upstream DC/DC converters, critical for clean power to camera ISP and ADC circuits. |
| Output Noise | 30µVRMS (10Hz–100kHz) - meets stringent noise requirements for CMOS image sensors and RF transceivers where supply ripple induces pattern noise. |
| Quiescent Current | 75µA per output - ensures ultra-low standby power when one or both regulators are active but lightly loaded. |
| Enable Logic | Active-high EN1/EN2 with 1.1V VIH min - compatible with 1.8V/2.8V/3.3V GPIOs; floating pins must be avoided to prevent indeterminate output states. |
Pinout & Package
Package: 8-pin 2mm × 2mm leadless MLF® (MicroLeadFrame) with exposed thermal pad (EP). RoHS-compliant, halogen-free mold compound, NiPdAu lead finish. θJA = 90°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Supply Input | Common input for both LDOs; requires 1µF ceramic bypass to GND for stability and noise suppression. |
| 2 - GND | Ground Reference | Primary return path; EP must be soldered to this net for optimal thermal and electrical performance. |
| 3 - BYP | Reference Bypass | Connects to internal bandgap reference; 0.1µF capacitor to GND reduces output noise and improves PSRR. |
| 4 - EN2 | Enable Input (LDO2) | Active-high control for 1.85V output; logic low disables LDO2 and reduces its ground current to ≤2µA. |
| 5 - EN1 | Enable Input (LDO1) | Active-high control for 2.85V output; independent of EN2, enabling flexible power sequencing in multi-rail systems. |
| 6 - NC | No Connect | Not internally bonded; must remain unconnected on PCB - no routing or stitching allowed. |
| 7 - VOUT2 | Regulator Output 2 | Delivers regulated 1.85V; requires ≥1µF ceramic output capacitor (X7R/X5R dielectric recommended). |
| 8 - VOUT1 | Regulator Output 1 | Delivers regulated 2.85V; same output capacitor requirements as VOUT2; decoupling must be placed close to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1 and EN2 allow staggered power-up/down of 2.85V and 1.85V rails - essential for avoiding back-powering and meeting camera module reset timing. |
| µCap stability | Stable with only 1µF ceramic output capacitors per channel - reduces BOM count, board area, and cost versus traditional LDOs requiring ≥10µF tantalum. |
| Ultra-low noise output | 30µVRMS noise floor enables direct powering of high-resolution CMOS image sensors without additional filtering stages. |
| Fast 30µs startup time | Supports rapid wake-from-sleep modes in portable devices - critical for low-latency camera activation and video streaming applications. |
| Thermal shutdown protection | Internally limits junction temperature to ≤125°C - prevents damage during overload or poor PCB thermal layout, ensuring field reliability. |
Applications
| Mobile Camera Modules | Digital Still Cameras |
|---|---|
Use Scenario: Powering CIS analog supply (AVDD) and digital I/O rail (DOVDD) in smartphone rear-facing camera modules. IC Role / Device Role / Timing Role: Dual LDO providing isolated, low-noise 2.85V (AVDD) and 1.85V (DOVDD) with independent enable control for power sequencing. Use Value: Eliminates need for discrete filtering components; 30µVRMS noise prevents fixed-pattern noise in raw image data. |
Use Scenario: Supplying image sensor and ISP core voltage in compact digital still cameras with limited PCB real estate. IC Role / Device Role / Timing Role: Single-package dual LDO replacing two SOT-23 regulators - reduces footprint by >60% vs discrete solution. Use Value: 2mm × 2mm MLF® package saves >50% board area compared to dual SOT-6, enabling thinner camera body designs. |
| Portable Media Players | GPS Receivers |
Use Scenario: Delivering clean 2.85V for audio codec and 1.85V for SDIO interface in MP3/MP4 players. IC Role / Device Role / Timing Role: Low-quiescent-current dual regulator supporting long battery life and fast resume from standby mode. Use Value: 75µA per channel quiescent current extends playback time; 30µs startup enables instant audio playback on button press. |
Use Scenario: Powering GPS baseband processor (1.85V) and RF front-end LNA (2.85V) in handheld navigation devices. IC Role / Device Role / Timing Role: Dual ULDO suppressing switching noise from PMU DC/DC converters to preserve GPS signal sensitivity. Use Value: >70dB PSRR at 1kHz prevents degradation of C/N₀ ratio; enables reliable acquisition in weak-signal urban canyon environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B2818MR-G | 2.8V/1.8V outputs; 200mA per channel; 150mV dropout @ 200mA; 45µVRMS noise; requires 4.7µF output caps. | Higher dropout and noise limit use in ultra-low-noise imaging; larger output caps increase board area and cost. | Select when higher output current is needed and noise tolerance is relaxed; not suitable for CIS AVDD where 30µVRMS is mandatory. |
| Ricoh RP512F2818D-TR-F | 2.8V/1.8V outputs; 300mA per channel; 120mV dropout @ 300mA; 50µVRMS noise; 1.2µF min output cap; 120µA IQ per channel. | Higher quiescent current and noise; wider dropout reduces usable input range in single-cell Li-ion systems. | Prefer for high-current peripherals where 150mA is insufficient; avoid when powering noise-critical analog sensor rails. |
Compared with XC6210B2818MR-G and RP512F2818D-TR-F, the MIC5310-NDYML-TR offers the lowest noise (30µVRMS), smallest dropout (35mV), and smallest package (2mm × 2mm), making it uniquely suited for space-constrained, noise-sensitive camera and imaging applications where power integrity directly impacts image quality.
Availability
MIC5310-NDYML-TR is available at Aetrix Electronics and suitable for mobile camera modules, digital still cameras, portable media players, GPS receivers, and imaging sensor subsystems requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for MIC5310-NDYML-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. Known for high-performance LDOs and Ethernet PHYs.
The MIC5310-NDYML-TR belongs to Micrel's µCap ULDO family, designed specifically for portable imaging and RF applications demanding ultra-low noise, minimal board area, and precise dual-rail power delivery.
FAQ
What are the exact output voltages of the MIC5310-NDYML-TR?
The MIC5310-NDYML-TR provides fixed output voltages of 2.85V on VOUT1 and 1.85V on VOUT2. These values are laser-trimmed during manufacturing and specified with ±2% initial accuracy and ±3% variation over –40°C to +125°C junction temperature range. No external feedback resistors are used or supported.
Does the MIC5310-NDYML-TR require external capacitors, and what types are recommended?
Yes - the MIC5310-NDYML-TR requires a 1µF ceramic output capacitor per channel (X7R or X5R dielectric), a 1µF ceramic input capacitor from VIN to GND, and a 0.1µF ceramic bypass capacitor from BYP to GND for optimal noise performance. Y5V/Z5U dielectrics are not recommended due to excessive capacitance drift over temperature.
Can the MIC5310-NDYML-TR operate with no load on either output?
Yes - the MIC5310-NDYML-TR remains stable and in regulation with zero load on either or both outputs. This no-load stability is confirmed in the datasheet and is critical for applications such as CMOS RAM keep-alive circuits or standby power domains where one rail may be inactive while the other remains active.
What is the thermal performance of the MIC5310-NDYML-TR in its 2mm × 2mm MLF® package?
The MIC5310-NDYML-TR has a junction-to-ambient thermal resistance (θJA) of 90°C/W with minimum recommended footprint. At full 150mA load on both outputs (2.85V/1.85V) with 3.3V input, power dissipation is ~0.345W, allowing a maximum ambient temperature of ~94°C before thermal shutdown activates at 125°C junction temperature.
How does the enable functionality work on the MIC5310-NDYML-TR?
The MIC5310-NDYML-TR uses two independent active-high enable inputs: EN1 controls VOUT1 (2.85V) and EN2 controls VOUT2 (1.85V). A logic high ≥1.1V enables the respective regulator; a logic low ≤0.2V disables it, reducing ground current to ≤2µA. Neither EN pin may be left floating - tie unused enables to GND or VIN via appropriate pull-up/down resistors.
MIC5310-NDYML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad, 8-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):
- 1.85V, 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.1V @ 150mA, 0.1V @ 150mA
- Current - Output:
- 150mA, 150mA
- Current - Quiescent (Iq):
- 120 µA
- Current - Supply (Max):
- 190 µA
- PSRR:
- 70dB ~ 65dB (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:
- 8-MLF® (2x2)
MIC5310-NDYML-TR FAQ
1.How can I place an order for MIC5310-NDYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5310-NDYML-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 MIC5310-NDYML-TR reliable?
The price and inventory of MIC5310-NDYML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5310-NDYML-TR is usually 5 days.
3.What payment methods are accepted for MIC5310-NDYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5310-NDYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5310-NDYML-TR?
MIC5310-NDYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5310-NDYML-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 MIC5310-NDYML-TR?
For technical support, including MIC5310-NDYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5310-NDYML-TR requirements.
6.How does Aetrix verify that MIC5310-NDYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC5310-NDYML-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 MIC5310-NDYML-TR meets industry standards.
7.What is the process for return or replacement of MIC5310-NDYML-TR?
All MIC5310-NDYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5310-NDYML-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 MIC5310-NDYML-TR part is unused and in its original packaging.
Return procedure for MIC5310-NDYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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