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Microchip Technology MIC5315-GGCYMT-TR
- Part No.:
- MIC5315-GGCYMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC5315-GGCYMT-TR.pdf
- Description:
- IC REG LIN 1V/1.8V/1.8V 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,152
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Product details
Overview
MIC5315-GGCYMT-TR from Micrel is a dual low-dropout linear regulator IC with independent 300mA LDOs, fixed 1.8V output on VOUT1 and voltage-selectable 1.8V/1.0V output on VOUT2, ultra-low 85mV dropout at full load, 1% output accuracy, and operation down to 1.7V input - designed for power management in space-constrained portable electronics.
For engineers reviewing the MIC5315-GGCYMT-TR datasheet, MIC5315-GGCYMT-TR pinout, MIC5315-GGCYMT-TR application, or MIC5315-GGCYMT-TR equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in battery-powered systems, and confirmed alternative parts with documented functional trade-offs.
Technical Context
The MIC5315-GGCYMT-TR integrates two independent CMOS-based LDO regulators sharing a common bias rail (VBIAS) but with separate VIN1/VIN2 inputs, enabling flexible power domain partitioning. Each LDO features internal current limiting and thermal shutdown protection.
Voltage select functionality is implemented exclusively on LDO2 via the active-low /VSC2 pin, allowing dynamic switching between 1.8V (full output) and 1.0V (standby mode) without external components. The device operates stably with only 1µF ceramic output capacitors and achieves 65dB PSRR at 1kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 300mA per LDO - supports core logic and I/O rails in mobile SoC subsystems. |
| Input Voltage Range | 1.7V to 5.5V on VIN1/VIN2 - enables direct regulation from single-cell Li-ion or boosted intermediate rails. |
| Dropout Voltage | 85mV @ 300mA - minimizes power loss and heat generation under full load at low VIN–VOUT differentials. |
| Output Accuracy | ±1% over temperature - ensures reliable voltage margining for 1.8V digital cores and 1.0V standby domains. |
| Ground Current | 7µA per enabled LDO at light load - extends battery life in always-on sensor or RTC keep-alive circuits. |
| Shutdown Current | ≤1.0µA total - enables true zero-power disable for both regulators simultaneously. |
| PSRR | 65dB @ 1kHz - suppresses ripple from noisy DC-DC converters feeding the bias or input rails. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (leadless, RoHS-compliant, NiPdAu finish, halogen-free mold compound).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1 | LDO1 input supply | Accepts 1.7V–5.5V; powers 1.8V output independently of VIN2 path. |
| VIN2 | LDO2 input supply | Independent 1.7V–5.5V input; allows separate power domain control for VOUT2. |
| VBIAS | Bias reference supply | 2.5V–5.5V rail powering internal control circuitry; bypass with 1µF capacitor improves transient response. |
| EN1 | LDO1 enable input | Active-high CMOS input; drives VOUT1 on/off without sequencing delay. |
| EN2 | LDO2 enable input | Active-high CMOS input; enables/disables 1.8V/1.0V output independently. |
| GND | Analog/digital ground | Common return for all regulators and bias circuitry; requires low-impedance PCB connection. |
| CBYP | Reference bypass | Connect 10nF capacitor to GND to reduce output noise and improve PSRR above 10kHz. |
| /VSC2 | Voltage select control | Active-low input: logic high = 1.8V VOUT2, logic low = 1.0V VOUT2; no pull-up required. |
| VOUT2 | LDO2 regulated output | Delivers either 1.8V or 1.0V depending on /VSC2 state; stable with ≥1µF X5R/X7R ceramic. |
| VOUT1 | LDO1 regulated output | Fixed 1.8V output; immune to /VSC2 state; used for primary core or interface voltage rail. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDOs | Enables simultaneous regulation of two distinct voltage domains (e.g., VCORE + VIO) with separate enable and input controls. |
| Voltage select on LDO2 | Reduces VOUT2 from 1.8V to 1.0V in standby mode, cutting dynamic power by >69% for memory or peripheral retention. |
| Ultra-low dropout (85mV) | Permits operation with minimal headroom - e.g., 1.85V input sustains 1.8V output at 300mA, maximizing battery utilization. |
| Stable with 1µF ceramic caps | Eliminates need for large tantalum or electrolytic output capacitors, reducing board area and cost in compact layouts. |
| Zero-off-mode shutdown | Draws ≤1µA total when both EN1 and EN2 are low - critical for long-term storage or deep-sleep modes in IoT endpoints. |
Applications
| Mobile Phone Baseband Power | GPS Receiver Core Supply |
|---|---|
Use Scenario: Powers ARM-based application processor core (VCORE1) and I/O domain (VCORE2) from shared Li-ion battery. IC Role / Device Role / Timing Role: Dual-LDO provides isolated 1.8V core rail and voltage-selectable 1.8V/1.0V I/O rail synchronized to processor sleep states. Use Value: Reduces system power by 42% during idle via /VSC2-triggered 1.0V I/O mode while maintaining 1.8V core readiness. |
Use Scenario: Supplies clean, low-noise 1.8V to GPS baseband IC and switches to 1.0V for RF front-end bias during acquisition pause. IC Role / Device Role / Timing Role: LDO1 delivers stable 1.8V to digital baseband; LDO2 supplies selectable voltage to analog front-end under /VSC2 control. Use Value: Achieves 65dB PSRR at 1kHz to reject switching noise from adjacent DC-DC converters, improving C/N₀ ratio by 3dB. |
| Portable Media Player Codec Rail | Digital Camera Image Sensor Bias |
Use Scenario: Regulates audio codec supply in MP3/WMA playback devices with dynamic voltage scaling based on decode complexity. IC Role / Device Role / Timing Role: VOUT1 powers DAC/ADC at fixed 1.8V; VOUT2 supplies codec analog section, scaled to 1.0V during low-bitrate playback. Use Value: Lowers codec analog section power by 69% without compromising SNR, extending playback time by 18 minutes per charge. |
Use Scenario: Provides precision 1.8V bias to CMOS image sensor and reduces to 1.0V during frame blanking intervals in video capture. IC Role / Device Role / Timing Role: LDO1 maintains sensor digital logic rail; LDO2 supplies analog pixel array, dynamically scaled via /VSC2 signal from timing controller. Use Value: Cuts sensor analog power by 69% during non-integration periods, reducing thermal noise and dark current drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5315-F5CYMT | Fixed 1.5V/1.3V/1.0V outputs - no 1.8V option on VOUT1; identical package and pinout. | Targets lower-voltage microcontrollers (e.g., 1.5V core) rather than 1.8V SoCs. | Select when system requires 1.5V primary rail and retains 1.3V/1.0V select capability. |
| TPS79533DCKR | Single 330mA LDO, 3.3V fixed output, no voltage select or dual-rail capability. | Suitable only for single-rail applications; lacks /VSC2 control and second output. | Choose only if design needs one high-accuracy 3.3V rail and can implement separate regulation for secondary domains. |
Compared with MIC5315-GGCYMT-TR, MIC5315-F5CYMT offers matching dual-LDO architecture and pin compatibility but targets 1.5V-core systems, whereas TPS79533DCKR provides higher output voltage and current but sacrifices dual-rail flexibility and voltage-scaling functionality essential for power-aware portable designs.
Availability
MIC5315-GGCYMT-TR is available at Aetrix Electronics and suitable for mobile phones, GPS navigation devices, and portable media players requiring stable component supply across extended production lifecycles.
Supply support for MIC5315-GGCYMT-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 MIC5315-GGCYMT-TR belongs to Micrel's low-voltage dual-LDO family, engineered specifically for battery-powered portable electronics demanding ultra-low dropout, voltage scalability, and minimal quiescent current.
FAQ
What output voltages does the MIC5315-GGCYMT-TR provide?
The MIC5315-GGCYMT-TR delivers a fixed 1.8V output on VOUT1 and a voltage-selectable output on VOUT2: 1.8V when /VSC2 is logic high, and 1.0V when /VSC2 is logic low. This dual-output configuration is factory-trimmed and does not require external resistors or programming.
How does the MIC5315-GGCYMT-TR achieve ultra-low dropout performance?
The MIC5315-GGCYMT-TR achieves 85mV dropout at 300mA by using a CMOS pass device architecture with optimized gate drive and low-RDS(on) design. Its bias rail (VBIAS) powers the control circuitry separately from VIN1/VIN2, decoupling regulation stability from input headroom constraints.
Can the MIC5315-GGCYMT-TR operate with ceramic capacitors only?
Yes - the MIC5315-GGCYMT-TR is fully stable with 1µF X5R or X7R ceramic output capacitors and requires no ESR tuning. Input and bypass capacitors (1µF and 10nF respectively) are also specified as ceramic, enabling fully MLCC-based, space-efficient designs.
What is the function of the /VSC2 pin on the MIC5315-GGCYMT-TR?
The /VSC2 pin is an active-low voltage select control for LDO2. When pulled high (≥1.2V), VOUT2 regulates at 1.8V; when pulled low (≤0.2V), VOUT2 drops to 1.0V. This feature enables dynamic power reduction without changing the PCB layout or adding external MOSFETs.
Does the MIC5315-GGCYMT-TR support independent enable control for each LDO?
Yes - the MIC5315-GGCYMT-TR has two dedicated enable inputs: EN1 controls LDO1 (VOUT1) and EN2 controls LDO2 (VOUT2). Both are active-high CMOS inputs with defined logic thresholds (VIH ≥ 1.2V, VIL ≤ 0.2V), allowing precise sequencing and independent power gating.
MIC5315-GGCYMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-UFDFN, 10-TMLF®
- 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):
- 1V/1.8V, 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)
MIC5315-GGCYMT-TR FAQ
1.How can I place an order for MIC5315-GGCYMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5315-GGCYMT-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 MIC5315-GGCYMT-TR reliable?
The price and inventory of MIC5315-GGCYMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5315-GGCYMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5315-GGCYMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5315-GGCYMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5315-GGCYMT-TR?
MIC5315-GGCYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5315-GGCYMT-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 MIC5315-GGCYMT-TR?
For technical support, including MIC5315-GGCYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5315-GGCYMT-TR requirements.
6.How does Aetrix verify that MIC5315-GGCYMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5315-GGCYMT-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 MIC5315-GGCYMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5315-GGCYMT-TR?
All MIC5315-GGCYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5315-GGCYMT-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 MIC5315-GGCYMT-TR part is unused and in its original packaging.
Return procedure for MIC5315-GGCYMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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