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Microchip Technology MIC5313-F5YMT-TR
- Part No.:
- MIC5313-F5YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC5313-F5YMT-TR.pdf
- Description:
- IC REG LINEAR 1.3V/1.5V 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MIC5313-F5YMT-TR from Micrel is a dual low-dropout linear regulator IC delivering two independent 300mA outputs at fixed 1.5V and 1.3V, operating from 1.7V input with 85mV dropout at full load, optimized for battery-powered portable electronics requiring ultra-low quiescent current and fast transient response.
For engineers reviewing the MIC5313-F5YMT-TR datasheet, MIC5313-F5YMT-TR pinout, MIC5313-F5YMT-TR application, or MIC5313-F5YMT-TR equivalent, this page provides verified package mapping, confirmed dual-LDO circuit role, validated thermal and PSRR performance, and real-world selection guidance for mobile power rail sequencing.
Technical Context
The MIC5313-F5YMT-TR integrates two independent CMOS-based LDOs sharing a common bias supply (VBIAS) to minimize dropout voltage while enabling independent enable control (EN1/EN2) and separate input rails (VIN1/VIN2). Each regulator uses a precision bandgap reference and quick-start circuitry for stable no-load operation and sub-300µs turn-on time.
It employs internal thermal shutdown and foldback current limiting (350–550mA), supports 1µF ceramic output capacitors per channel, and achieves 65dB PSRR at 1kHz with 0.01µF CBYP bypass capacitor-critical for noise-sensitive RF and core logic supplies in compact portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.5V (LDO1) / 1.3V (LDO2) - fixed, ±1% accuracy over –40°C to +125°C ensures stable core/I/O rail generation without external feedback. |
| Max Output Current | 300mA per channel - sufficient to power dual-core microcontrollers or baseband processors without derating at 80°C/W θJA. |
| Dropout Voltage | 85mV @ 300mA - enables high efficiency when stepping down from 1.7V–2.0V sources (e.g., single Li-ion cell or DC-DC pre-regulator). |
| Ground Current | 7µA (active, light load) / 0.01µA (shutdown) - extends battery life in standby modes of GPS receivers and media players. |
| PSRR | 65dB @ 1kHz, 40dB @ 20kHz - suppresses switching noise from upstream DC-DC converters feeding VBIAS or VIN rails. |
| Stability | Stable with ≥1µF X5R/X7R ceramic output capacitors - eliminates need for bulky tantalum or electrolytic caps in space-constrained 2mm × 2mm layouts. |
| Enable Logic | Active-high EN1/EN2 (VIH ≥ 1.2V, VIL ≤ 0.2V) - compatible with 1.8V/3.3V GPIOs for independent power sequencing of VCORE and VI/O rails. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (RoHS-compliant, NiPdAu lead finish, halogen-free mold compound).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN1 | Input supply for 1.5V LDO - accepts 1.7V–5.5V; decoupled by 1µF ceramic capacitor to ground. |
| 2 | VIN2 | Input supply for 1.3V LDO - independently powered; enables flexible rail sourcing (e.g., separate battery or DC-DC path). |
| 3 | VBIAS | Bias supply (2.5V–5.5V) powering control circuitry - bypassed with 1µF cap to reduce noise injection into reference and error amp. |
| 4 | EN1 | Active-high enable for 1.5V LDO - logic high (>1.2V) activates output; must not float to prevent indeterminate state. |
| 5 | EN2 | Active-high enable for 1.3V LDO - allows independent power gating of dual rails during sleep/wake transitions. |
| 6 | GND | Common ground reference for all regulators and bias circuitry - requires low-inductance connection to PCB ground plane. |
| 7 | CBYP | Bypass pin for internal reference - 0.01µF capacitor here reduces output noise and improves PSRR above 10kHz. |
| 8 | NC | No connect - not internally bonded; left unconnected on PCB. |
| 9 | VOUT2 | 1.3V regulated output - powers I/O peripherals or memory interfaces requiring lower voltage than core logic. |
| 10 | VOUT1 | 1.5V regulated output - typically supplies processor core or analog subsystems demanding tight voltage tolerance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow staggered power-up of VCORE and VI/O rails - essential for FPGA or SoC boot sequencing without external logic. |
| Zero-off-mode shutdown | 0.01µA shutdown current per LDO - enables multi-week battery shelf life in always-on GPS tracking devices. |
| Ultra-low-noise regulation | 30µVRMS output noise (10Hz–100kHz) with CBYP - meets stringent noise requirements for RF transceivers and ADC reference supplies. |
| Thermal & current protection | Integrated foldback current limit (350–550mA) and thermal shutdown - prevents damage during short-circuit or overload events in unattended portable use. |
| No-load stability | Remains in regulation with zero output load - supports CMOS RAM keep-alive circuits without external dummy loads. |
Applications
| Mobile Phones | GPS Navigation Devices |
|---|---|
|
Use Scenario: Powering application processor core (1.5V) and I/O interface (1.3V) from a shared 2.0V DC-DC converter output. IC Role / Device Role / Timing Role: Dual-LDO voltage regulator providing isolated, low-noise, sequenced power rails with independent enable control. Use Value: Enables simultaneous core and peripheral operation while minimizing board area via 2mm × 2mm footprint and eliminating discrete sequencing ICs. |
Use Scenario: Supplying GNSS baseband processor (1.5V) and RF front-end bias (1.3V) in a handheld navigation unit with single-cell Li-ion input. IC Role / Device Role / Timing Role: Low-dropout regulator delivering stable, low-ripple power under dynamic GPS signal acquisition loads. Use Value: 85mV dropout preserves battery runtime; 65dB PSRR rejects switching noise from PMU DC-DC stages, improving position accuracy. |
| Portable Media Players | Digital Still Cameras |
|
Use Scenario: Generating 1.5V for audio codec DSP and 1.3V for display interface controller in an MP3 player with flash storage. IC Role / Device Role / Timing Role: Dual-output LDO managing power domains with independent enable for audio playback vs. UI display modes. Use Value: 7µA light-load ground current extends playback time; fast transient response prevents audio clipping during volume changes. |
Use Scenario: Powering image sensor analog front-end (1.5V) and digital ISP core (1.3V) in a compact point-and-shoot camera. IC Role / Device Role / Timing Role: Precision voltage regulator ensuring stable analog supply for low-noise image capture and clean digital logic operation. Use Value: 1% output accuracy maintains consistent sensor gain calibration; 30µVRMS noise prevents fixed-pattern noise in captured images. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70245PWPR | Fixed 1.5V/1.3V outputs; 250mA per channel; 160mV dropout @ 250mA; 5-pin WSON package lacks independent VIN1/VIN2. | Lower current capability limits use in high-performance processors; no separate input rails restricts flexibility in multi-source systems. | Select only if board space permits larger 5-pin WSON and system load stays below 250mA per rail. |
| RT9013-15GJ5 | Single 1.5V LDO (300mA); no dual-output or 1.3V option; 120mV dropout @ 300mA; SOT-23-5 package. | Requires two separate ICs to replicate MIC5313-F5YMT-TR functionality - increases BOM count, layout area, and routing complexity. | Use only when dual-rail integration is unnecessary and cost-per-rail is prioritized over board space and design simplicity. |
Compared with TPS70245PWPR and RT9013-15GJ5, the MIC5313-F5YMT-TR uniquely delivers matched 300mA dual outputs with independent inputs and enables in a 2mm × 2mm footprint - reducing component count and PCB area while supporting advanced power sequencing in portable SoC designs.
Availability
MIC5313-F5YMT-TR is available at Aetrix Electronics and suitable for mobile phones, GPS navigation devices, portable media players, and digital still cameras requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC5313-F5YMT-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.
The MIC5313-F5YMT-TR belongs to Micrel's low-voltage dual-LDO product line, designed specifically for space-constrained, battery-powered portable electronics needing high-efficiency, low-noise, and independently controllable dual power rails.
FAQ
What is the output voltage configuration of the MIC5313-F5YMT-TR?
The MIC5313-F5YMT-TR provides fixed dual outputs: 1.5V on VOUT1 (Pin 10) and 1.3V on VOUT2 (Pin 9), with ±1% accuracy over –40°C to +125°C. This configuration is laser-trimmed at wafer test and requires no external resistors - simplifying design and ensuring consistent performance across production lots of the MIC5313-F5YMT-TR.
Can the MIC5313-F5YMT-TR operate from a single-cell lithium-ion battery?
Yes, the MIC5313-F5YMT-TR supports input voltages as low as 1.7V on VIN1 and VIN2, making it compatible with discharged single-cell Li-ion batteries (down to ~3.0V total, split across rails or used with a buck-boost pre-regulator). Its 85mV dropout at 300mA ensures usable headroom even at end-of-discharge, extending runtime in portable devices using the MIC5313-F5YMT-TR.
How does the CBYP pin improve performance in the MIC5313-F5YMT-TR?
The CBYP pin (Pin 7) connects to an internal reference bypass node; adding a 0.01µF capacitor here reduces output voltage noise to 30µVRMS (10Hz–100kHz) and boosts PSRR by up to 20dB above 10kHz. This directly enhances signal integrity in noise-sensitive applications like RF receivers or high-resolution ADCs powered by the MIC5313-F5YMT-TR.
What thermal considerations apply to the MIC5313-F5YMT-TR in a 2mm × 2mm MLF package?
The MIC5313-F5YMT-TR has a junction-to-ambient thermal resistance (θJA) of 80°C/W in the standard 2mm × 2mm Thin MLF package. At 300mA per channel with 1.8V input and 1.5V/1.3V outputs, power dissipation reaches ~0.33W - limiting max ambient temperature to ~99°C. Adequate copper pour under Pin 6 (GND) is required to maintain safe junction temperatures in the MIC5313-F5YMT-TR.
Is the MIC5313-F5YMT-TR suitable for automotive applications?
No - the MIC5313-F5YMT-TR is rated for –40°C to +125°C junction temperature but is not AEC-Q200 qualified, lacks automotive-grade screening, and was designed for commercial portable electronics. It is not recommended for under-hood or safety-critical automotive systems; use only in infotainment or accessory modules where full automotive qualification is not mandated for the MIC5313-F5YMT-TR.
MIC5313-F5YMT-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):
- 1.3V, 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-F5YMT-TR FAQ
1.How can I place an order for MIC5313-F5YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5313-F5YMT-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-F5YMT-TR reliable?
The price and inventory of MIC5313-F5YMT-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-F5YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5313-F5YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5313-F5YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5313-F5YMT-TR?
MIC5313-F5YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5313-F5YMT-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-F5YMT-TR?
For technical support, including MIC5313-F5YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5313-F5YMT-TR requirements.
6.How does Aetrix verify that MIC5313-F5YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5313-F5YMT-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-F5YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5313-F5YMT-TR?
All MIC5313-F5YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5313-F5YMT-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-F5YMT-TR part is unused and in its original packaging.
Return procedure for MIC5313-F5YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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