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Microchip Technology MIC5370-M4YMT-TR
- Part No.:
- MIC5370-M4YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-UFDFN Exposed Pad, 6-TMLF®
- Datasheet:
-
MIC5370-M4YMT-TR.pdf
- Description:
- IC REG LINEAR 1.2V/2.8V 6TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:1,874
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Product details
Overview
MIC5370-M4YMT-TR from Micrel is a dual low-dropout linear regulator IC delivering two independent 150mA outputs at fixed 2.8V and 1.2V, housed in a 6-pin 1.6mm × 1.6mm Thin MLF® package. It features ±2% initial output accuracy, 155mV dropout at full load, and 32µA quiescent current per LDO-optimized for camera phone core/DSP power rails.
For engineers reviewing the MIC5370-M4YMT-TR datasheet, MIC5370-M4YMT-TR pinout, MIC5370-M4YMT-TR application, or MIC5370-M4YMT-TR equivalent, key selection criteria include dual-rail voltage pairing, zero-off-mode shutdown (0.05µA), stability with 1µF ceramic capacitors, and thermal performance in space-constrained portable designs.
Technical Context
The MIC5370-M4YMT-TR integrates two CMOS-based LDOs sharing a common input (VIN) and ground (GND), each controlled by dedicated active-high enable pins (EN1, EN2). Its architecture supports independent regulation without cross-coupling, enabling selective power sequencing for multi-voltage SoC subsystems.
Each LDO employs internal reference and error amplification to maintain regulation across –40°C to +125°C, with line regulation of 0.02%/V and load regulation of 0.3% over 100µA–150mA. PSRR reaches 60dB at 1kHz, and output noise is 200µVRMS (10Hz–100kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 2.8V (VOUT1) and 1.2V (VOUT2) - fixed, non-adjustable rails for baseband processor and memory I/O domains |
| Max Output Current | 150mA per LDO - sufficient for digital core logic and low-power analog peripherals |
| Dropout Voltage | 155mV at 150mA - enables operation from single-cell Li-ion (3.0V min) while maintaining 2.8V rail |
| Quiescent Current | 32µA per LDO (typ.) - minimizes battery drain during standby in always-on sensor modules |
| Accuracy | ±2% initial, ±3% over –40°C to +125°C - ensures reliable voltage margining for 1.2V DDR I/O and 2.8V camera ISP |
| PSRR | 60dB at 1kHz - suppresses switching noise from PMIC buck converters feeding VIN |
| Stability | Guaranteed with ≥1µF X5R/X7R ceramic output capacitors - eliminates need for bulk electrolytics in thin-profile handsets |
Pinout & Package
Package: 6-pin 1.6mm × 1.6mm Thin MLF® (MT) with exposed thermal pad (internally connected to GND). RoHS-compliant, halogen-free mold compound, NiPdAu lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Supply Input | Common input for both LDOs; accepts 2.5V–5.5V; requires 1µF ceramic bypass to GND |
| 2 - GND | Ground Reference | Power and signal return; connects internally to EPAD for thermal conduction |
| 3 - EN2 | Enable Input (LDO2) | Active-high logic control for 1.2V output; must not float; VIH ≥ 1.2V, VIL ≤ 0.2V |
| 4 - EN1 | Enable Input (LDO1) | Active-high logic control for 2.8V output; independent sequencing from EN2 |
| 5 - VOUT2 | LDO2 Output | Regulated 1.2V supply; stable with ≥1µF ceramic capacitor; no auto-discharge (MIC5370 variant) |
| 6 - VOUT1 | LDO1 Output | Regulated 2.8V supply; stable with ≥1µF ceramic capacitor; no auto-discharge (MIC5370 variant) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow staggered power-up of 2.8V core and 1.2V I/O rails-critical for SoC reset timing compliance |
| Zero-off-mode shutdown | 0.05µA total ground current when both EN pins are low-enables ultra-low-power deep-sleep states |
| Thermal and current protection | Internal thermal shutdown and 200–550mA current limit per LDO prevent damage during short-circuit or overload |
| Low-noise regulation | 200µVRMS output noise (10Hz–100kHz) avoids clock jitter in camera image signal processors |
| Small-footprint packaging | 1.6mm × 1.6mm Thin MLF® saves >60% board area vs. SOT-23 dual-LDO alternatives-essential for slim mobile PCBs |
Applications
| Camera DSP Power Supply | Mobile Baseband Core |
|---|---|
|
Use Scenario: Dual-rail power for image signal processor (ISP) requiring 2.8V analog front-end and 1.2V digital core. IC Role / Device Role / Timing Role: Primary dual-LDO regulator providing sequenced, low-noise bias to camera module ASIC. Use Value: 200µVRMS noise and 60dB PSRR prevent image artifacts; 155mV dropout extends battery life in low-VIN conditions. |
Use Scenario: Powering application processor subsystems with separate 2.8V I/O and 1.2V core rails. IC Role / Device Role / Timing Role: Compact dual-LDO enabling independent enable control for power-state transitions (active/sleep). Use Value: 32µA quiescent current per LDO reduces standby drain; ±2% accuracy ensures reliable CPU voltage margining. |
| GPS Receiver Module | Portable Media Player Audio Codec |
|
Use Scenario: Low-power GNSS receiver needing clean 2.8V RF front-end and 1.2V digital baseband supply. IC Role / Device Role / Timing Role: Dual-output LDO isolating noise-sensitive GPS RF section from digital switching transients. Use Value: 60dB PSRR at 1kHz rejects PMIC ripple; 1µF ceramic stability simplifies layout in antenna-proximate zones. |
Use Scenario: Audio subsystem requiring isolated 2.8V DAC supply and 1.2V DSP core voltage. IC Role / Device Role / Timing Role: Dedicated dual-LDO minimizing crosstalk between analog audio paths and digital processing. Use Value: Independent EN pins allow mute-before-shutdown sequencing; low dropout preserves headroom for battery 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-M4YMT-TR | Same pinout and electrical specs, but adds auto-discharge (30Ω NFET) on both outputs when disabled | Required where rapid output discharge prevents latch-up in hot-plug or reset scenarios | Select MIC5371-M4YMT-TR only if output capacitor discharge is mandatory; otherwise MIC5370-M4YMT-TR offers lower cost and identical regulation performance |
| TPL720F12-28QDSR | 2.8V/1.2V dual-LDO in 1.6mm × 1.6mm WSON; 250mA per channel; 200mV dropout; 50µA IQ | Higher current capability suits next-gen processors; larger dropout limits low-VIN operation | Choose TPL720F12-28QDSR for future-proofing with 250mA loads; MIC5370-M4YMT-TR remains optimal for legacy 150mA designs with tighter dropout constraints |
Compared with MIC5371-M4YMT-TR, the MIC5370-M4YMT-TR omits auto-discharge-reducing complexity and cost where fast discharge isn't required. Versus TPL720F12-28QDSR, it delivers lower dropout and quiescent current but at reduced output current, making it ideal for established 150mA portable platforms.
Availability
MIC5370-M4YMT-TR is available at Aetrix Electronics and suitable for camera phones, GPS receivers, and portable media players requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5370-M4YMT-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 analog and mixed-signal semiconductor company acquired by Microchip Technology in 2015; known for high-performance power management and interface ICs.
The MIC5370 family targets ultra-compact, battery-powered portable electronics, delivering dual-rail LDO regulation with minimal footprint, low quiescent current, and robust thermal protection.
FAQ
What output voltages does the MIC5370-M4YMT-TR provide?
The MIC5370-M4YMT-TR provides fixed 2.8V on VOUT1 and 1.2V on VOUT2. These values are laser-trimmed during manufacturing and cannot be adjusted externally. The marking code "M4" corresponds specifically to this 2.8V/1.2V combination, verified in Micrel's official ordering information table.
Does the MIC5370-M4YMT-TR include auto-discharge functionality?
No, the MIC5370-M4YMT-TR does not include auto-discharge. That feature is exclusive to the MIC5371 variant (e.g., MIC5371-M4YMT-TR), which integrates a 30Ω NFET to discharge output capacitors when disabled. The MIC5370-M4YMT-TR enters zero-current shutdown but leaves outputs floating.
What is the minimum input voltage required for the MIC5370-M4YMT-TR to regulate at full load?
To maintain regulation at 150mA load on the 2.8V rail, the MIC5370-M4YMT-TR requires VIN ≥ 2.955V (2.8V + 155mV dropout). For the 1.2V rail, VIN ≥ 1.355V suffices-but system design must satisfy the higher 2.8V rail requirement. The device operates down to 2.5V input across its full temperature range.
Can the MIC5370-M4YMT-TR operate without load on either output?
Yes, the MIC5370-M4YMT-TR remains stable and in regulation with no load on either VOUT1 or VOUT2. This is confirmed in the Application Information section, which explicitly states "unlike many other voltage regulators, the MIC5370/1 will remain stable and in regulation with no load"-a key advantage for CMOS RAM keep-alive circuits.
What capacitor types are recommended for input and output use with the MIC5370-M4YMT-TR?
Micrel specifies 1µF X5R or X7R ceramic capacitors for both input and output. Y5V and Z5U dielectrics are explicitly discouraged due to excessive capacitance loss over temperature. The design is optimized for 1µF; larger values do not improve stability or transient response and may degrade startup behavior.
MIC5370-M4YMT-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):
- 1.2V, 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-M4YMT-TR FAQ
1.How can I place an order for MIC5370-M4YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5370-M4YMT-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-M4YMT-TR reliable?
The price and inventory of MIC5370-M4YMT-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-M4YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5370-M4YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5370-M4YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5370-M4YMT-TR?
MIC5370-M4YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5370-M4YMT-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-M4YMT-TR?
For technical support, including MIC5370-M4YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5370-M4YMT-TR requirements.
6.How does Aetrix verify that MIC5370-M4YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5370-M4YMT-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-M4YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5370-M4YMT-TR?
All MIC5370-M4YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5370-M4YMT-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-M4YMT-TR part is unused and in its original packaging.
Return procedure for MIC5370-M4YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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