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Microchip Technology MIC5370-MMYMT-TR
- Part No.:
- MIC5370-MMYMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-UFDFN Exposed Pad, 6-TMLF®
- Datasheet:
-
MIC5370-MMYMT-TR.pdf
- Description:
- IC REG LINEAR 2.8V/2.8V 6TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,682
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Product details
Overview
MIC5370-MMYMT-TR from Micrel is a dual-channel, fixed-output 2.8V/2.8V low-dropout linear regulator delivering 150mA per channel in a 6-pin 1.6mm × 1.6mm Thin MLF® package. It features ±2% initial output accuracy, 155mV dropout at full load (150mA), and ultra-low ground current of 32µA per LDO - optimized for camera phone core and I/O power rails.
For engineers reviewing the MIC5370-MMYMT-TR datasheet, MIC5370-MMYMT-TR pinout, MIC5370-MMYMT-TR application, or MIC5370-MMYMT-TR equivalent, key selection criteria include dual independent enable control, stability with 1µF ceramic output capacitors, zero-off-mode shutdown (<1µA total), and thermal/current protection - critical for space-constrained portable electronics.
Technical Context
The MIC5370-MMYMT-TR integrates two fully independent CMOS-based LDO regulators sharing only VIN and GND. Each channel uses a precision bandgap reference and error amplifier to maintain regulation across –40°C to +125°C junction temperature, with line regulation of 0.3%/V and load regulation of 1% over 100µA–150mA.
Its architecture supports simultaneous or staggered enable via active-high EN1/EN2 pins, with no floating inputs permitted. Unlike the MIC5371 variant, it lacks auto-discharge circuitry - output capacitors remain charged when disabled, preserving state in keep-alive applications like CMOS RAM backup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V / 2.8V - eliminates external feedback resistors; enables compact layout for dual-rail systems. |
| Max Output Current | 150mA per channel - sufficient for baseband processors, camera sensors, and RF transceivers in handhelds. |
| Dropout Voltage | 155mV @ 150mA - allows operation down to VIN = 2.955V while maintaining 2.8V output, extending battery runtime. |
| Ground Current | 32µA per LDO (typ.) - minimizes quiescent drain in always-on subsystems; drops to <1µA in shutdown. |
| Accuracy | ±2% initial, ±3% over –40°C to +125°C - ensures reliable logic-level compliance for 2.8V I/O and core supplies. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from adjacent DC/DC converters in mixed-power domains. |
| Stability | Guaranteed with ≥1µF X5R/X7R ceramic output capacitors - eliminates need for tantalum or electrolytic bulk caps. |
Pinout & Package
6-pin 1.6mm × 1.6mm Thin MLF® (MT) package with exposed thermal pad (internally connected to GND); RoHS-compliant NiPdAu lead finish and halogen-free mold compound.
| 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 | Primary return path; connects internally to EPAD for thermal conduction to PCB ground plane. |
| 3 - EN2 | Enable Input (LDO2) | Active-high logic control; drives LDO2 ON/OFF independently; VIH ≥ 1.2V, VIL ≤ 0.2V. |
| 4 - EN1 | Enable Input (LDO1) | Active-high logic control; drives LDO1 ON/OFF independently; not shared with EN2 - enables sequencing. |
| 5 - VOUT2 | LDO2 Output | Regulated 2.8V supply for secondary rail (e.g., camera sensor I/O); stable without load. |
| 6 - VOUT1 | LDO1 Output | Regulated 2.8V supply for primary rail (e.g., baseband processor core); supports fast transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1 and EN2 allow precise power sequencing - e.g., enable VOUT1 before VOUT2 to prevent backfeed in multi-rail systems. |
| No-load stability | Remains in regulation with zero output current - essential for CMOS RAM keep-alive and standby power domains. |
| Low-noise operation | 200µVRMS output noise (10Hz–100kHz) - avoids interference in analog sensor or audio signal chains. |
| Fault protection | Integrated thermal shutdown and current limiting (200–550mA trip range) - prevents damage during short-circuit or overload. |
| Small-footprint packaging | 1.6mm × 1.6mm footprint saves >60% board area vs. SOIC-8 equivalents - critical for slim mobile form factors. |
Applications
| Camera Phone Power Management | Mobile Baseband Core Supply |
|---|---|
|
Use Scenario: Dual-rail power for image sensor (I/O) and ISP/DSP core in smartphone camera modules. IC Role / Device Role / Timing Role: Provides isolated, low-noise 2.8V rails with independent enable for power sequencing and sleep mode control. Use Value: Enables rapid wake-up from deep sleep by retaining charge on output caps (no auto-discharge), reducing boot latency. |
Use Scenario: Primary core voltage supply for 2.8V-compatible baseband processors in GSM/UMTS handsets. IC Role / Device Role / Timing Role: Delivers clean, regulated 2.8V at up to 150mA with fast transient response to handle burst processing loads. Use Value: Maintains voltage within ±3% across –40°C to +125°C, ensuring reliable operation in automotive-integrated mobile units. |
| GPS/PMP I/O Rail Regulation | Handheld PDA Memory Backup |
|
Use Scenario: Stable 2.8V supply for GPS receiver RF front-end and PMP display interface circuits. IC Role / Device Role / Timing Role: Supplies noise-sensitive analog/RF blocks while rejecting ripple from shared battery or DC/DC sources. Use Value: 60dB PSRR at 1kHz suppresses switching artifacts from PMICs, preserving GPS signal integrity and SNR. |
Use Scenario: Always-on 2.8V rail for SRAM/RTC backup in PDAs during main power-off states. IC Role / Device Role / Timing Role: Regulator remains stable at zero load and draws only 32µA per LDO in active mode. Use Value: Extends coin-cell or supercapacitor backup runtime by minimizing quiescent current without sacrificing regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5371-MMYMT-TR | Same pinout and electrical specs, but adds 30Ω auto-discharge NFET per output when disabled. | Required where rapid output discharge is needed (e.g., to meet safety reset timing); not suitable for keep-alive rails. | Select MIC5371-MMYMT-TR only if output capacitor discharge is mandatory; otherwise MIC5370-MMYMT-TR preserves state. |
| Torex XC6217B282MR-G | Single-channel 2.8V LDO (150mA), SOT-25 package; no dual output or independent enables. | Requires two devices and additional logic for dual-rail control; larger total footprint than single MIC5370-MMYMT-TR. | Use only when dual-channel integration is unnecessary or board layout cannot accommodate MLF® package. |
Compared with MIC5371-MMYMT-TR, MIC5370-MMYMT-TR avoids unintended discharge during sleep, improving system resume time; versus XC6217B282MR-G, it delivers dual-rail integration and sequencing capability in half the board area.
Availability
MIC5370-MMYMT-TR is available at Aetrix Electronics and suitable for camera phones, GPS receivers, and handheld PDAs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5370-MMYMT-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 designed specifically for ultra-compact, battery-powered portable electronics requiring dual, independently controlled LDOs with minimal quiescent current and robust thermal performance.
FAQ
What is the output voltage configuration of the MIC5370-MMYMT-TR?
The MIC5370-MMYMT-TR is factory-configured with dual fixed 2.8V outputs (VOUT1 = 2.8V, VOUT2 = 2.8V), as indicated by the "MM" marking code. It does not support adjustable output or different voltage combinations - only the specific 2.8V/2.8V variant is delivered under this part number.
Does the MIC5370-MMYMT-TR include auto-discharge functionality?
No, the MIC5370-MMYMT-TR does not include auto-discharge circuitry. That feature is exclusive to the MIC5371 variant (e.g., MIC5371-MMYMT-TR). When disabled, MIC5370-MMYMT-TR holds output voltage on external capacitors - ideal for keep-alive applications like RTC or SRAM backup.
What is the minimum input voltage required for the MIC5370-MMYMT-TR to regulate at full load?
To sustain 2.8V output at 150mA per channel, the MIC5370-MMYMT-TR requires VIN ≥ 2.955V (2.8V + 155mV dropout). Its specified input range is 2.5V to 5.5V, but regulation fails below the dropout threshold - design margin should include worst-case tolerance and trace IR drop.
Can the MIC5370-MMYMT-TR operate without an output capacitor?
No - the MIC5370-MMYMT-TR requires a minimum 1µF ceramic output capacitor per rail for stability, as confirmed in the datasheet's Application Information section. Operation without COUT risks oscillation or loss of regulation, even at no load.
Is the MIC5370-MMYMT-TR pin-compatible with other variants in the MIC5370/1 family?
Yes - all MIC5370 and MIC5371 variants in the YMT package share identical 6-pin Thin MLF® pinout and footprint, including MIC5370-MMYMT-TR. However, functional differences (e.g., auto-discharge presence) mean direct substitution requires verification of system-level enable/discharge behavior.
MIC5370-MMYMT-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, 2.8V
- 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-MMYMT-TR FAQ
1.How can I place an order for MIC5370-MMYMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5370-MMYMT-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-MMYMT-TR reliable?
The price and inventory of MIC5370-MMYMT-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-MMYMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5370-MMYMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5370-MMYMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5370-MMYMT-TR?
MIC5370-MMYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5370-MMYMT-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-MMYMT-TR?
For technical support, including MIC5370-MMYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5370-MMYMT-TR requirements.
6.How does Aetrix verify that MIC5370-MMYMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5370-MMYMT-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-MMYMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5370-MMYMT-TR?
All MIC5370-MMYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5370-MMYMT-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-MMYMT-TR part is unused and in its original packaging.
Return procedure for MIC5370-MMYMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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