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Microchip Technology MIC5370-PMYMT-TR
- Part No.:
- MIC5370-PMYMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-UFDFN Exposed Pad, 6-TMLF®
- Datasheet:
-
MIC5370-PMYMT-TR.pdf
- Description:
- IC REG LINEAR 2.8V/3V 6TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,013
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Product details
Overview
MIC5370-PMYMT-TR from Micrel is a dual low-dropout linear regulator delivering two independent 150mA outputs at 3.0V and 2.8V, designed for space-constrained portable electronics. It features ±2% initial output accuracy, 155mV dropout at full load, 32µA quiescent current per LDO, and operates from 2.5V to 5.5V input. Used in camera phone core/DSP power rails where compact size and low-noise dual-rail regulation are critical.
For engineers reviewing the MIC5370-PMYMT-TR datasheet, MIC5370-PMYMT-TR pinout, MIC5370-PMYMT-TR application, or MIC5370-PMYMT-TR equivalent, key selection criteria include fixed dual-output voltage pairing (3.0V/2.8V), 1.6mm × 1.6mm Thin MLF® package footprint, independent active-high enable control, stability with 1µF ceramic capacitors, and thermal shutdown protection.
Technical Context
The MIC5370-PMYMT-TR integrates two CMOS-based LDOs sharing a common VIN and GND, each with dedicated EN1/EN2 pins enabling independent on/off control. Its architecture supports zero-off-mode operation (<1µA shutdown current) and maintains regulation under no-load conditions-critical for standby power integrity in battery-powered systems.
Each LDO employs internal bandgap reference and error amplifier feedback with optimized loop compensation for fast transient response and 60dB PSRR at 1kHz. The device uses low-ESR ceramic output capacitors exclusively and includes built-in current-limit and thermal-shutdown protection without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltages | 3.0V (VOUT1) and 2.8V (VOUT2), fixed, non-adjustable |
| Max output current | 150mA per LDO - supports dual-core logic or sensor + RF subsystems |
| Dropout voltage | 155mV @ 150mA - enables operation down to VIN = 3.155V for 3.0V rail |
| Quiescent current | 32µA per LDO - minimizes battery drain during active operation |
| Output accuracy | ±2% initial, ±3% over –40°C to +125°C - ensures reliable logic-level compliance |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC/DC converters |
| Stability capacitor | 1µF ceramic (X5R/X7R) - eliminates need for bulk electrolytics in ultra-thin designs |
Pinout & Package
Package: 6-pin 1.6mm × 1.6mm Thin MLF® (Pb-free, RoHS-compliant, exposed thermal pad connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Supply input | Common input for both LDOs; must be decoupled with ≥1µF ceramic capacitor to GND |
| 2 - GND | Ground reference | Power and signal ground; connects internally to exposed thermal pad for heat dissipation |
| 3 - EN2 | Enable input (LDO2) | Active-high logic control; <0.2V = off, >1.2V = on; floating prohibited |
| 4 - EN1 | Enable input (LDO1) | Independent active-high control for VOUT1; enables staggered power sequencing |
| 5 - VOUT2 | LDO2 regulated output | Delivers stable 2.8V @ up to 150mA; requires local 1µF ceramic output capacitor |
| 6 - VOUT1 | LDO1 regulated output | Delivers stable 3.0V @ up to 150mA; supports low-noise analog or I/O circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enables | EN1 and EN2 allow precise power sequencing-e.g., enable VOUT1 before VOUT2 for core-first boot |
| Zero-off-mode current | Sub-1µA shutdown current per LDO extends battery life in deep-sleep states |
| No-load stability | Remains in regulation with 0mA load-essential for maintaining RAM retention or real-time clock bias |
| Thermal & current protection | Integrated thermal shutdown and foldback current limiting prevent damage during overload or ambient rise |
| Low-noise operation | 200µVRMS output noise (10Hz–100kHz) supports noise-sensitive analog sensors and ADC references |
Applications
| Camera Phone Power | Mobile Phone Baseband |
|---|---|
Use Scenario: Dual-rail supply for image sensor (2.8V) and ISP/DSP core (3.0V) in slim smartphone modules. IC Role / Device Role / Timing Role: Primary dual-LDO regulator providing isolated, low-noise, sequenced power domains. Use Value: Eliminates need for discrete regulators or larger PMICs-reducing BOM count and PCB area by >40%. | Use Scenario: Powering baseband processor I/O (3.0V) and memory interface (2.8V) in GSM/WCDMA handsets. IC Role / Device Role / Timing Role: Compact dual-voltage source supporting simultaneous voltage domain activation during call setup. Use Value: Enables single-package solution for dual-rail requirements-avoiding layout complexity of separate LDOs. |
| GPS/PMP Core Supply | Handheld Industrial Scanner |
Use Scenario: Supplying GPS RF front-end (2.8V) and baseband SoC core (3.0V) in portable navigation devices. IC Role / Device Role / Timing Role: Low-PSRR dual regulator rejecting noise from switching converters while maintaining tight voltage tolerance. Use Value: Ensures GNSS signal integrity and timing accuracy by minimizing supply-induced jitter on clock paths. | Use Scenario: Powering barcode scanner laser driver (3.0V) and CMOS image sensor (2.8V) in rugged handheld scanners. IC Role / Device Role / Timing Role: Dual-output LDO delivering stable rails across wide temperature range (–40°C to +125°C). Use Value: Guarantees consistent laser output and image quality under varying ambient conditions and battery voltage sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5371-PMYMT-TR | Includes auto-discharge circuit (30Ω NFET per output); otherwise identical specs and pinout | Required when rapid output capacitor discharge on disable is needed (e.g., to meet USB suspend timing) | Select MIC5371-PMYMT-TR only if auto-discharge functionality is mandatory; otherwise MIC5370-PMYMT-TR offers same regulation performance at lower cost |
| Torex XC6219B302MR-G | Single 300mA LDO; no second output; 1.0V dropout @ 150mA; 25µA IQ | Cannot replace dual-rail function-requires two devices to match MIC5370-PMYMT-TR's capability | Only viable if redesign allows splitting rails across two packages and accepts larger board area and higher component count |
Compared with MIC5371-PMYMT-TR, the MIC5370-PMYMT-TR omits auto-discharge but retains identical regulation accuracy, thermal performance, and footprint-making it optimal for cost-sensitive dual-rail applications where controlled discharge isn't required. Versus Torex XC6219B302MR-G, MIC5370-PMYMT-TR delivers true dual-output integration in half the area and simplifies power sequencing.
Availability
MIC5370-PMYMT-TR is available at Aetrix Electronics and suitable for camera phones, mobile handsets, and portable GPS devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5370-PMYMT-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 MIC5370 family was developed specifically for ultra-compact dual-rail power delivery in portable consumer electronics, emphasizing minimal footprint, low quiescent current, and robust protection in thin-profile packages.
FAQ
What are the exact output voltages provided by the MIC5370-PMYMT-TR?
The MIC5370-PMYMT-TR delivers fixed output voltages of 3.0V on VOUT1 and 2.8V on VOUT2. These values are factory-trimmed and non-adjustable. The ordering code "PM" explicitly denotes the 3.0V/2.8V configuration per Micrel's official ordering information table, and electrical testing confirms ±2% initial accuracy across temperature and load conditions.
Does the MIC5370-PMYMT-TR include an auto-discharge feature on its outputs?
No, the MIC5370-PMYMT-TR does not include auto-discharge circuitry. That functionality is exclusive to the MIC5371 variant (e.g., MIC5371-PMYMT-TR), which integrates a 30Ω NFET per output to discharge capacitors when disabled. The MIC5370-PMYMT-TR remains in zero-current shutdown but leaves outputs floating-requiring external discharge paths if fast rail collapse is needed.
What is the minimum input voltage required for the MIC5370-PMYMT-TR to regulate both outputs properly?
The MIC5370-PMYMT-TR requires VIN ≥ (VOUT + dropout). For VOUT1 = 3.0V and max dropout = 155mV at 150mA, minimum VIN is 3.155V. For VOUT2 = 2.8V, minimum VIN is 2.955V. Since both LDOs share VIN, the higher threshold governs: 3.155V is the practical minimum to ensure regulation on the 3.0V rail under full load.
Can the MIC5370-PMYMT-TR operate stably with no load on either output?
Yes, the MIC5370-PMYMT-TR is explicitly designed for no-load stability. Unlike many LDOs requiring minimum load current, it remains in regulation with 0mA output current on either or both rails-verified in the "No-Load Stability" section of the datasheet and critical for applications like RTC backup or memory keep-alive circuits.
What package type and lead finish does the MIC5370-PMYMT-TR use?
The MIC5370-PMYMT-TR uses a 6-pin 1.6mm × 1.6mm Thin MLF® package with Pb-free (RoHS-compliant) NiPdAu lead finish and halogen-free mold compound. Pin 1 is marked with a ▲ identifier, and the exposed thermal pad is internally connected to GND-requiring PCB connection to ground plane for thermal performance.
MIC5370-PMYMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 6-UFDFN Exposed Pad, 6-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):
- 2.8V, 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.31V @ 150mA, 0.31V @ 150mA
- Current - Output:
- 150mA, 150mA
- Current - Quiescent (Iq):
- 45 µA
- Current - Supply (Max):
- 85 µA
- PSRR:
- 60dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TMLF® (1.6x1.6)
MIC5370-PMYMT-TR FAQ
1.How can I place an order for MIC5370-PMYMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5370-PMYMT-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 MIC5370-PMYMT-TR reliable?
The price and inventory of MIC5370-PMYMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5370-PMYMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5370-PMYMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5370-PMYMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5370-PMYMT-TR?
MIC5370-PMYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5370-PMYMT-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 MIC5370-PMYMT-TR?
For technical support, including MIC5370-PMYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5370-PMYMT-TR requirements.
6.How does Aetrix verify that MIC5370-PMYMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5370-PMYMT-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 MIC5370-PMYMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5370-PMYMT-TR?
All MIC5370-PMYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5370-PMYMT-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 MIC5370-PMYMT-TR part is unused and in its original packaging.
Return procedure for MIC5370-PMYMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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