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Microchip Technology MIC5370-G4YMT-TR
- Part No.:
- MIC5370-G4YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-UFDFN Exposed Pad, 6-TMLF®
- Datasheet:
-
MIC5370-G4YMT-TR.pdf
- Description:
- IC REG LINEAR 1.2V/1.8V 6TMLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC5370-G4YMT-TR from Micrel is a dual low-dropout linear regulator IC delivering two independent 150mA outputs at fixed 1.8V and 1.2V, optimized for space-constrained portable electronics. It features ±2% output voltage accuracy, 155mV dropout at full load, and ultra-low 32µA quiescent current per LDO - enabling efficient battery-powered operation in camera phones and handheld devices.
For engineers reviewing the MIC5370-G4YMT-TR datasheet, MIC5370-G4YMT-TR pinout, MIC5370-G4YMT-TR application, or MIC5370-G4YMT-TR equivalent, key selection criteria include dual-rail fixed-voltage regulation, 1.6mm × 1.6mm Thin MLF® package compatibility, independent enable control, stability with 1µF ceramic capacitors, and thermal shutdown protection.
Technical Context
The MIC5370-G4YMT-TR integrates two 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 = 1.8V, VOUT2 = 1.2V). Its architecture supports independent on/off control without cross-regulator interference.
It operates across 2.5V–5.5V input range, maintains regulation down to 155mV dropout at 150mA, and achieves 60dB PSRR at 1kHz. Ground current remains stable at 32µA per enabled LDO and drops to ≤1µA in shutdown - critical for standby power integrity in portable SoC power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 1.8V (VOUT1) and 1.2V (VOUT2), fixed and factory-trimmed - eliminates external feedback networks and ensures rail-specific SoC core/I/O compliance. |
| Max Output Current | 150mA per LDO - sufficient to power baseband processors, camera sensors, or RF transceivers without thermal derating in 1.6mm × 1.6mm footprint. |
| Dropout Voltage | 155mV at 150mA - enables >95% efficiency at 1.8V/1.2V outputs with 3.0V battery input, extending usable battery range. |
| Quiescent Current | 32µA per enabled LDO - minimizes no-load power loss in always-on subsystems like real-time clocks or memory retention rails. |
| Accuracy | ±2% initial tolerance, ±3% over –40°C to +125°C - guarantees voltage margin compliance for 1.2V logic cores and 1.8V I/O interfaces. |
| PSRR | 60dB at 1kHz - suppresses switching noise from adjacent DC/DC converters, preserving analog sensor or audio signal integrity. |
| Stability | Guaranteed with ≥1µF ceramic output capacitors - reduces BOM count and PCB area vs. larger electrolytic or tantalum solutions. |
Pinout & Package
Package: 6-pin 1.6mm × 1.6mm Thin MLF® (Pb-free, RoHS-compliant), exposed thermal pad internally connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Supply Input | Common input for both LDOs; accepts 2.5V–5.5V; requires 1µF ceramic decoupling to GND for stability. |
| 2 - GND | Ground Reference | Power and signal return; connects to exposed thermal pad - must be soldered to large PCB copper pour for thermal management. |
| 3 - EN2 | Enable Input (LDO2) | Active-high digital control (VIH ≥ 1.2V); disables VOUT2 and reduces ground current to ≤1µA when low. |
| 4 - EN1 | Enable Input (LDO1) | Active-high digital control (VIH ≥ 1.2V); independently enables/disables 1.8V output without affecting VOUT2. |
| 5 - VOUT2 | LDO2 Output | Regulated 1.2V supply; stable with ≥1µF ceramic capacitor; not equipped with auto-discharge (MIC5370 variant). |
| 6 - VOUT1 | LDO1 Output | Regulated 1.8V supply; stable with ≥1µF ceramic capacitor; supports fast transient response for burst-mode digital loads. |
Key Features
| Feature | Design Value |
|---|---|
| Independent Enable Control | EN1 and EN2 allow sequenced or asynchronous power-up/down of 1.8V and 1.2V rails - essential for multi-voltage SoC boot sequences. |
| Low Dropout Performance | 155mV dropout at 150mA enables operation from single-cell Li-ion (3.0V min) while maintaining 1.2V/1.8V regulation - avoids need for boost stages. |
| Ultra-Low Quiescent Current | 32µA per LDO in active mode and <1µA in shutdown - extends battery life in always-on sensor nodes and standby modes. |
| Thermal & Current Protection | Integrated thermal shutdown and foldback current limiting prevent damage during overload or high ambient temperature - no external protection circuitry required. |
| Small-Signal Stability | Stable with 1µF X5R/X7R ceramic capacitors - eliminates ESR requirements and simplifies layout in tight 0402/0201 designs. |
Applications
| Camera Phone Power Management | Mobile Baseband Core Supply |
|---|---|
|
Use Scenario: Dual-rail power delivery to image sensor (1.2V analog) and ISP processor (1.8V I/O) in slim smartphone modules. IC Role / Device Role / Timing Role: Primary dual-output LDO providing clean, sequenced bias for mixed-signal camera subsystems. Use Value: Eliminates discrete regulators and saves >1.5mm² PCB area versus two 1.6mm × 1.6mm single-LDO packages. |
Use Scenario: Powering ARM-based baseband SoC requiring separate 1.8V I/O and 1.2V core rails during active and sleep states. IC Role / Device Role / Timing Role: Independent enable-controlled voltage source enabling dynamic voltage scaling and deep-sleep rail shutdown. Use Value: 32µA quiescent current per LDO reduces standby power by >60% vs. legacy 100µA dual-LDOs, extending idle battery life. |
| GPS/PMP Audio Codec Supply | Handheld PDA Memory Retention |
|
Use Scenario: Low-noise 1.8V supply for audio DAC and 1.2V reference for GPS RF front-end in portable navigation devices. IC Role / Device Role / Timing Role: High-PSRR dual LDO suppressing DC/DC switching noise coupled into sensitive analog signal paths. Use Value: 60dB PSRR at 1kHz prevents audible switching artifacts and preserves GPS carrier-to-noise ratio (C/N₀). |
Use Scenario: Maintaining 1.2V SRAM retention and 1.8V real-time clock (RTC) backup during main system power-off in PDAs. IC Role / Device Role / Timing Role: Always-on dual LDO operating from coin cell or battery backup path with zero-load stability. Use Value: Guaranteed no-load regulation and <1µA shutdown current prevent battery drain over weeks of storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5371-G4YMT-TR | Same pinout and electrical specs, but adds auto-discharge (30Ω NFET per output) on disable - increases shutdown ground current slightly. | Required where rapid output discharge is needed (e.g., to meet USB suspend timing or prevent back-powering). | Select MIC5371-G4YMT-TR only if auto-discharge is mandatory; otherwise MIC5370-G4YMT-TR offers lower shutdown IQ and identical regulation performance. |
| TPL720F1218PDSQR | TI dual LDO with 1.2V/1.8V outputs, 200mA per channel, 250mV dropout, 50µA IQ - larger 2mm × 2mm DSBGA package. | Higher current headroom and integrated soft-start, but larger footprint and higher quiescent current. | Choose TPL720F1218PDSQR only if >150mA per rail or soft-start sequencing is required; MIC5370-G4YMT-TR better fits ultra-compact, ultra-low-IQ designs. |
Compared with MIC5371-G4YMT-TR, the MIC5370-G4YMT-TR trades auto-discharge capability for lower shutdown current (<1µA vs. ~5µA), while matching all regulation, accuracy, and thermal specs. Against TPL720F1218PDSQR, it delivers identical voltage rails in 44% less board area and 36% lower active IQ - prioritizing miniaturization and battery longevity over current headroom.
Availability
MIC5370-G4YMT-TR is available at Aetrix Electronics and suitable for camera phone power management, mobile baseband core supply, GPS/PMP audio codec supply, and handheld PDA memory retention requiring stable component supply across industrial temperature ranges.
Supply support for MIC5370-G4YMT-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, analog, and RF solutions before its acquisition by Microchip Technology in 2015.
The MIC5370 family was designed specifically for ultra-compact, dual-rail power delivery in portable consumer electronics - emphasizing minimal footprint, low IQ, and robust transient response in sub-2mm² packages.
FAQ
What is the output voltage configuration of the MIC5370-G4YMT-TR?
The MIC5370-G4YMT-TR provides two fixed, factory-trimmed output voltages: VOUT1 = 1.8V and VOUT2 = 1.2V. These values are laser-trimmed during production and cannot be adjusted externally. The marking code "G4" on the device corresponds to this 1.8V/1.2V combination, as confirmed in Micrel's official ordering information table.
Does the MIC5370-G4YMT-TR include auto-discharge functionality on its outputs?
No, the MIC5370-G4YMT-TR does not include auto-discharge. That feature is exclusive to the MIC5371 variant (e.g., MIC5371-G4YMT-TR), which integrates a 30Ω NFET between each output and GND during shutdown. The MIC5370-G4YMT-TR enters zero-current shutdown but leaves outputs floating - external discharge paths must be added if required.
What is the minimum input voltage required for the MIC5370-G4YMT-TR to regulate both outputs?
The MIC5370-G4YMT-TR requires VIN ≥ (VOUT + dropout) for each rail. With VOUT1 = 1.8V and max dropout = 155mV at 150mA, minimum VIN is 1.955V for the 1.8V rail. For VOUT2 = 1.2V, minimum VIN is 1.355V. Since both share VIN, the higher threshold governs: 1.955V is the practical minimum for simultaneous regulation - though datasheet specifies 2.5V as absolute minimum operating input.
Can the MIC5370-G4YMT-TR operate stably with no load on either output?
Yes, the MIC5370-G4YMT-TR remains stable and in regulation with zero load on either or both outputs. This "no-load stability" is explicitly guaranteed in the Application Information section and is critical for applications like RTC backup or memory retention where one rail may be idle while the other supplies active circuitry.
What package type and thermal characteristics apply to the MIC5370-G4YMT-TR?
The MIC5370-G4YMT-TR uses a 6-pin 1.6mm × 1.6mm Thin MLF® package with an exposed thermal pad connected to GND. Its junction-to-ambient thermal resistance (θJA) is 90°C/W. At 150mA per LDO and 3.6V input, power dissipation reaches ~0.39W - limiting maximum ambient temperature to ~90°C under standard PCB copper pour conditions.
MIC5370-G4YMT-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, 1.8V
- 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-G4YMT-TR FAQ
1.How can I place an order for MIC5370-G4YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5370-G4YMT-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-G4YMT-TR reliable?
The price and inventory of MIC5370-G4YMT-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-G4YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5370-G4YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5370-G4YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5370-G4YMT-TR?
MIC5370-G4YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5370-G4YMT-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-G4YMT-TR?
For technical support, including MIC5370-G4YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5370-G4YMT-TR requirements.
6.How does Aetrix verify that MIC5370-G4YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5370-G4YMT-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-G4YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5370-G4YMT-TR?
All MIC5370-G4YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5370-G4YMT-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-G4YMT-TR part is unused and in its original packaging.
Return procedure for MIC5370-G4YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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