My Inquiry
My Account
Microchip Technology MIC5371-MFYMT-TR
- Part No.:
- MIC5371-MFYMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-UFDFN Exposed Pad, 6-TMLF®
- Datasheet:
-
MIC5371-MFYMT-TR.pdf
- Description:
- IC REG LINEAR 1.5V/2.8V 6TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:3,866
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC5371-MFYMT-TR from Micrel is a dual-output, high-performance LDO regulator delivering 150mA per channel with fixed 2.8V and 1.5V outputs in a 6-pin 1.6mm × 1.6mm Thin MLF® package. It features ±2% initial output accuracy, 155mV dropout at 150mA, 32µA typical ground current per LDO, and integrated auto-discharge circuitry for rapid output capacitor discharge during shutdown - optimized for camera DSP power supply and portable electronics.
For engineers reviewing the MIC5371-MFYMT-TR datasheet, MIC5371-MFYMT-TR pinout, MIC5371-MFYMT-TR application, or MIC5371-MFYMT-TR equivalent, key selection criteria include dual independent enable control, low-noise operation (200µVRMS), 60dB PSRR at 1kHz, RoHS-compliant Pb-free packaging, and thermal-shutdown protection across –40°C to +125°C junction temperature range.
Technical Context
The MIC5371-MFYMT-TR integrates two independent CMOS-based LDO regulators sharing a common input (VIN) and ground (GND), each with dedicated active-high enable pins (EN1, EN2) and output terminals (VOUT1 = 2.8V, VOUT2 = 1.5V). Its architecture includes internal reference, error amplifiers, pass transistors, and an auto-discharge NFET (30Ω typical) activated only when both enables are low.
It operates across 2.5V–5.5V input voltage, maintains stability with 1µF ceramic output capacitors, and delivers fast transient response due to high bandwidth design. Ground current scales linearly with load (≤85µA total under full dual-load conditions), and ripple rejection remains ≥60dB up to 1kHz without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 2.8V (VOUT1) and 1.5V (VOUT2), fixed, non-adjustable |
| Max Output Current | 150mA per LDO - supports simultaneous dual-rail loads without derating |
| Dropout Voltage | 155mV at 150mA - enables operation with ≤300mV headroom above 2.8V rail |
| Output Accuracy | ±2% initial, ±3% over –40°C to +125°C - ensures reliable core/DSP voltage margining |
| Ground Current | 32µA per LDO (typical) - minimizes battery drain in standby mode |
| PSRR | 60dB at 1kHz - suppresses switching noise from upstream DC/DC converters |
| Auto-Discharge | 30Ω internal NFET per output - discharges 1µF cap in <1ms upon disable |
| Thermal Protection | Integrated thermal shutdown - prevents damage during sustained overload or poor PCB heatsinking |
Pinout & Package
Package: 6-pin 1.6mm × 1.6mm Thin MLF® (MT) with exposed thermal pad (internally connected to GND); RoHS-compliant NiPdAu lead finish; halogen-free mold compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Supply Input | Common input for both LDOs; 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; drives LDO2 ON/OFF independently; must not float |
| 4 - EN1 | Enable Input (LDO1) | Active-high logic; drives LDO1 ON/OFF independently; must not float |
| 5 - VOUT2 | LDO2 Output | Regulated 1.5V output; auto-discharged via internal 30Ω FET when EN2 = LOW |
| 6 - VOUT1 | LDO1 Output | Regulated 2.8V output; auto-discharged via internal 30Ω FET when EN1 = LOW |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1 and EN2 allow staggered power-up/down sequencing for SoC core/peripheral rails |
| Auto-discharge circuitry | 30Ω internal NFET per output ensures rapid VOUT decay (<1ms for 1µF), preventing latch-up in downstream logic |
| Ultra-low quiescent current | 32µA per LDO enables >1-year battery life in always-on sensor nodes with periodic wake-up |
| Stable with minimal capacitance | Guaranteed stability with 1µF X5R/X7R ceramic output caps - reduces BOM count and board area |
| High PSRR at audio frequencies | 60dB rejection at 1kHz eliminates need for additional LC filtering in noise-sensitive analog/audio subsystems |
| Robust fault protection | Integrated current limiting (200–550mA) and thermal shutdown prevent failure during short-circuit or overtemperature events |
Applications
| Camera DSP Power Supply | Mobile Phone Baseband Core |
|---|---|
Use Scenario: Dual-rail power for image signal processor and camera interface logic in smartphone front/rear modules. IC Role / Device Role / Timing Role: Primary low-noise dual-LDO supplying 2.8V (I/O interface) and 1.5V (DSP core) simultaneously. Use Value: Auto-discharge prevents residual voltage on 1.5V rail from interfering with reset sequencing during camera activation/deactivation cycles. |
Use Scenario: Standby and active-mode power delivery to baseband processor cores requiring strict voltage accuracy and fast load transient response. IC Role / Device Role / Timing Role: Secondary regulation stage following main PMIC, providing clean 2.8V/1.5V rails with independent enable control. Use Value: ±2% output accuracy ensures reliable operation across –40°C to +125°C ambient, critical for cellular modem certification testing. |
| GPS Receiver Module | Portable Media Player (PMP) Audio Codec |
Use Scenario: Powering GPS RF frontend and baseband ASIC in compact handheld navigation devices. IC Role / Device Role / Timing Role: Low-dropout dual regulator enabling direct battery-to-rail conversion from single-cell Li-ion (2.8V–4.2V). Use Value: 155mV dropout at 150mA allows uninterrupted GPS lock down to 2.95V battery voltage, extending usable runtime. |
Use Scenario: Isolated analog and digital power for stereo audio codec IC in battery-powered PMPs. IC Role / Device Role / Timing Role: Dedicated low-noise LDO pair decoupling DAC/ADC analog supplies (2.8V) from digital I/O (1.5V). Use Value: 200µVRMS output noise and 60dB PSRR preserve SNR >95dB in 24-bit audio playback path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70245PWPR | 2.5V/1.5V outputs; higher 250mA per channel; 220mV dropout; no auto-discharge | Requires external discharge resistors; better suited for higher-current microcontroller domains | Select when >150mA per rail or tighter load regulation (<0.5%) is required |
| RT9013-2815GB | 2.8V/1.5V outputs; 300mA per channel; 200mV dropout; 50µA quiescent current; no auto-discharge | Larger 2mm × 2mm DFN package; lacks integrated discharge path for fast rail collapse | Choose for cost-sensitive designs where board space permits larger footprint and external discharge is acceptable |
Compared with TPS70245PWPR and RT9013-2815GB, the MIC5371-MFYMT-TR uniquely combines ultra-small 1.6mm × 1.6mm footprint, guaranteed 1µF stability, and built-in auto-discharge - making it optimal for space-constrained portable devices requiring deterministic power-rail collapse without added components.
Availability
MIC5371-MFYMT-TR is available at Aetrix Electronics and suitable for camera modules, GPS receivers, portable media players, and mobile phone baseband subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5371-MFYMT-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 power management, timing, and interface ICs before its acquisition by Microchip Technology in 2015.
The MIC5371-MFYMT-TR belongs to Micrel's high-density dual-LDO family designed specifically for battery-powered portable electronics demanding minimal footprint, ultra-low quiescent current, and fast, controlled power sequencing.
FAQ
What output voltages does the MIC5371-MFYMT-TR provide?
The MIC5371-MFYMT-TR provides fixed 2.8V on VOUT1 and 1.5V on VOUT2. These values are factory-trimmed and non-adjustable. The part marking "MFY" corresponds to the 2.8V/1.5V variant per Micrel's ordering guide, and output accuracy is ±2% initial with ±3% over –40°C to +125°C operating range. No external feedback resistors are used or supported.
Does the MIC5371-MFYMT-TR include auto-discharge functionality?
Yes, the MIC5371-MFYMT-TR includes auto-discharge circuitry - a key differentiator from the MIC5370 series. When either EN1 or EN2 is driven low, the corresponding output (VOUT1 or VOUT2) connects to an internal 30Ω NFET that discharges the external output capacitor. This feature is confirmed in the block diagram, pin description, and Electrical Characteristics table of the official datasheet.
What is the minimum input voltage required for the MIC5371-MFYMT-TR to regulate at full 150mA load?
At 150mA load, the MIC5371-MFYMT-TR requires VIN ≥ VOUT + dropout voltage. For VOUT1 = 2.8V and dropout = 155mV (typical), minimum VIN = 2.955V. For VOUT2 = 1.5V, same dropout applies, so VIN ≥ 1.655V - but system-level input must meet the device's absolute minimum of 2.5V. Thus, full 150mA operation on both rails requires VIN ≥ 2.955V.
Can the MIC5371-MFYMT-TR operate stably with less than 1µF output capacitance?
No - the MIC5371-MFYMT-TR is specified and characterized for stability only with ≥1µF ceramic output capacitors (X5R/X7R dielectric). The datasheet explicitly states "The MIC5370/1 requires an output capacitor of 1µF or greater to maintain stability" and warns that high-ESR or undersized caps may cause oscillation. Operation below 1µF is not guaranteed and violates design validation requirements.
What package type and dimensions does the MIC5371-MFYMT-TR use?
The MIC5371-MFYMT-TR uses a 6-pin 1.6mm × 1.6mm Thin MLF® (MicroLeadFrame) package with exposed thermal pad (EPAD), per Micrel's ordering information and Pin Configuration diagram. It is RoHS-compliant, Pb-free, with NiPdAu lead finish and halogen-free mold compound - designated "YMT" in the part number suffix and confirmed in the Package Information section.
MIC5371-MFYMT-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):
- 1.5V, 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)
MIC5371-MFYMT-TR FAQ
1.How can I place an order for MIC5371-MFYMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5371-MFYMT-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 MIC5371-MFYMT-TR reliable?
The price and inventory of MIC5371-MFYMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5371-MFYMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5371-MFYMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5371-MFYMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5371-MFYMT-TR?
MIC5371-MFYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5371-MFYMT-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 MIC5371-MFYMT-TR?
For technical support, including MIC5371-MFYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5371-MFYMT-TR requirements.
6.How does Aetrix verify that MIC5371-MFYMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5371-MFYMT-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 MIC5371-MFYMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5371-MFYMT-TR?
All MIC5371-MFYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5371-MFYMT-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 MIC5371-MFYMT-TR part is unused and in its original packaging.
Return procedure for MIC5371-MFYMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC5371-MFYMT-TR Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
