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Microchip Technology MIC5504-2.2YMT-TZ
- Part No.:
- MIC5504-2.2YMT-TZ
- Manufacturer:
- Microchip Technology
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
MIC5504-2.2YMT-TZ.pdf
- Description:
- IC REG LINEAR 2.2V 300MA 4TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,294
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Product details
Overview
MIC5504-2.2YMT-TZ from Microchip Technology is a 300 mA, fixed 2.2 V output low-dropout linear regulator with auto-discharge and internal enable pull-down, operating from 2.5 V to 5.5 V input, delivering ±2% output accuracy and 160 mV dropout at full load - deployed in battery-powered portable electronics requiring fast turn-off and safe output discharge.
For engineers reviewing the MIC5504-2.2YMT-TZ datasheet, MIC5504-2.2YMT-TZ pinout, MIC5504-2.2YMT-TZ application, or MIC5504-2.2YMT-TZ equivalent, this page delivers verified package mapping (4-lead 1.0 mm × 1.0 mm TDFN), confirmed EN pull-down resistor (4 MΩ), auto-discharge NFET resistance (25 Ω), thermal shutdown behavior, and real-world load regulation (40 mV over 100 μA–300 mA).
Technical Context
The MIC5504-2.2YMT-TZ integrates dual functional enhancements over base LDO variants: an active-high enable input with internal 4 MΩ pull-down resistor ensures deterministic disable during processor boot-up when control signals float, and an integrated 25 Ω NFET discharge path activates automatically when EN is low - enabling rapid VOUT collapse without external circuitry. Both features are exclusive to the MIC5504 variant within the MIC5501/2/3/4 family.
It operates across –40°C to +125°C junction temperature, maintains stability with only 1 μF ceramic output capacitance, and achieves 60 dB PSRR at 1 kHz - all while drawing just 38 μA quiescent current at no load and dropping to 0.05 μA in shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.2 V ±2% (–40°C to +125°C), enabling direct power for 2.2 V logic rails without feedback tuning. |
| Max Output Current | 300 mA guaranteed, supporting moderate-power peripherals like sensors or RF front-end bias circuits. |
| Dropout Voltage | 160 mV @ 300 mA, allowing operation from 2.5 V input down to 2.2 V output - critical for single-cell Li-ion or Li-poly systems. |
| Quiescent Current | 38 μA typical at 100 μA load, minimizing standby drain in always-on subsystems such as RTC or wake-up controllers. |
| Enable Pull-Down | 4 MΩ internal resistor on EN pin, eliminating need for external pull-down and preventing floating-induced misoperation during MCU reset. |
| Auto-Discharge | 25 Ω internal NFET activated when EN = 0 V, discharging output capacitors rapidly - essential for safe power sequencing in multi-rail systems. |
| PSRR | 60 dB @ 1 kHz, suppressing ripple from noisy DC-DC pre-regulators feeding the LDO input. |
| Operating Temp | –40°C to +125°C junction range, qualifying for industrial and automotive under-hood auxiliary rail applications. |
Pinout & Package
Package: 4-Lead 1.0 mm × 1.0 mm Thin DFN (TDFN-4, MT suffix), with exposed thermal pad (ePAD) requiring connection to GND for optimal thermal performance (θJA = 250°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 4) | Input supply connection | Accepts 2.5 V–5.5 V; requires 1 μF ceramic decoupling to GND per datasheet layout guidance. |
| EN (Pin 3) | Active-high enable control | Logic-high ≥1.2 V enables regulation; logic-low ≤0.2 V disables output and triggers auto-discharge; internal 4 MΩ pull-down prevents floating. |
| VOUT (Pin 1) | Regulated output node | Delivers stable 2.2 V; internally connected to 25 Ω discharge FET when EN = low - no external bleeder required. |
| GND (Pin 2) | Power and signal reference | Return path for load current and quiescent current; must be tied to ePAD for thermal integrity and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge + EN pull-down integration | Single-device solution eliminates two external components (discharge FET + pull-down resistor), reducing BOM count and PCB area in space-constrained designs. |
| Ultra-small 1.0 mm × 1.0 mm TDFN package | Enables placement near point-of-load in ultra-thin mobile devices - footprint 75% smaller than SOT23-5, with lower thermal resistance than comparable 5-lead packages. |
| Stable with 1 μF ceramic output capacitor | Eliminates need for larger, less reliable electrolytic or tantalum caps; supports X5R/X7R dielectrics only - simplifies capacitor selection and improves long-term reliability. |
| Zero-off-mode shutdown current | 0.05 μA max when EN = 0 V, enabling multi-year battery life in IoT sensor nodes with infrequent wake-up cycles. |
| Full fault protection | Integrated thermal shutdown and current limiting (400–900 mA trip range) prevent damage during short-circuit or overload events without external sensing circuitry. |
Applications
| Medical Wearables | Smartphone Subsystem Power |
|---|---|
Use Scenario: Powering low-power biosensor analog front-ends and BLE radio sleep/wake circuits in patch-style ECG monitors. IC Role / Device Role / Timing Role: Primary 2.2 V bias rail regulator with fast, controlled discharge during sleep transitions to prevent leakage into sensitive analog paths. Use Value: Auto-discharge ensures VOUT collapses below 100 mV within microseconds of EN deassertion - eliminating cross-conduction in multi-supply analog signal chains. |
Use Scenario: Supplying camera ISP core voltage in dual-camera smartphone modules where space and thermal density are constrained. IC Role / Device Role / Timing Role: Secondary LDO delivering clean 2.2 V to image signal processor cores, enabled synchronously with application processor wake-up signals. Use Value: Internal EN pull-down guarantees default-disabled state during cold boot - preventing unintended ISP activation before firmware configures GPIOs. |
| Industrial Sensor Nodes | Portable Diagnostic Devices |
Use Scenario: Regulating power for MEMS pressure sensors and low-power microcontrollers in battery-operated predictive maintenance transmitters. IC Role / Device Role / Timing Role: Always-on 2.2 V rail for sensor bias and MCU RTC, entering zero-current shutdown between measurement intervals. Use Value: 38 μA quiescent current and 0.05 μA shutdown draw extend 2000 mAh coin cell life beyond 5 years in 1-minute sampling intervals. |
Use Scenario: Providing regulated 2.2 V to precision ADC reference buffers and optical sensor arrays in handheld blood glucose meters. IC Role / Device Role / Timing Role: Precision low-noise LDO with 175 μVRMS output noise, placed adjacent to high-resolution SAR ADC inputs. Use Value: 60 dB PSRR at 1 kHz suppresses switching noise from shared DC-DC converters, preserving ENOB in 16-bit ADC conversions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5504-2.2YMT-TR | Same silicon, identical electrical specs, but supplied in 5,000-unit tape-and-reel (TR) vs. 10,000-unit TZ reel. | No functional difference; selected when production volume aligns with TR packaging or when TZ reels exceed line-side storage capacity. | Choose MIC5504-2.2YMT-TZ for high-volume SMT lines requiring longer continuous feed; TR is preferred for pilot builds or mixed-BOM lines. |
| Torex XC6210B222MR-G | 2.2 V, 300 mA LDO with 150 mV dropout, but lacks auto-discharge and EN pull-down - requires external 10 MΩ pull-down and discharge FET. | Suitable for cost-sensitive designs where board space allows extra passives and sequencing control is handled externally. | Select only if system-level design already includes discrete EN management and discharge circuitry - not drop-in compatible. |
Compared with MIC5504-2.2YMT-TZ, the TR variant offers identical performance in smaller reels for prototyping, while the XC6210B222MR-G trades integrated functionality for lower unit cost - requiring additional layout area and validation effort to replicate auto-discharge and floating-safe enable behavior.
Availability
MIC5504-2.2YMT-TZ is available at Aetrix Electronics and suitable for medical wearables, industrial sensor nodes, and portable diagnostic devices requiring stable component supply with guaranteed long-term manufacturability and RoHS-compliant packaging.
Supply support for MIC5504-2.2YMT-TZ 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
Microchip Technology is a global semiconductor company specializing in microcontrollers, analog devices, and power management ICs, with a focus on embedded control and energy-efficient solutions.
The MIC5504 belongs to Microchip's ultra-low-quiescent-current LDO family designed specifically for space- and power-constrained portable electronics - emphasizing minimal footprint, fast enable/discharge response, and wide-temperature reliability.
FAQ
What is the maximum input voltage rating for MIC5504-2.2YMT-TZ?
The absolute maximum input voltage for MIC5504-2.2YMT-TZ is +6 V, but its operational input range is strictly +2.5 V to +5.5 V per the datasheet. Exceeding 5.5 V may cause permanent damage or unpredictable regulation behavior, even if below the 6 V absolute limit. Always maintain VIN within the specified operating range for reliable 2.2 V output from MIC5504-2.2YMT-TZ.
Does MIC5504-2.2YMT-TZ require an external pull-down resistor on the EN pin?
No, MIC5504-2.2YMT-TZ includes an internal 4 MΩ pull-down resistor on the EN pin, ensuring the output remains disabled when the enable signal is left floating - a key differentiator from MIC5501 and MIC5502 variants. This eliminates the need for external components and prevents indeterminate states during MCU reset sequences, making MIC5504-2.2YMT-TZ ideal for systems with unconfigured GPIOs at power-up.
How does the auto-discharge function operate in MIC5504-2.2YMT-TZ?
When the EN pin is driven low, MIC5504-2.2YMT-TZ activates an internal 25 Ω NFET between VOUT and GND, discharging external output capacitors without requiring external circuitry. This feature is exclusive to MIC5502 and MIC5504 variants and ensures rapid, controlled VOUT collapse - critical for safe power sequencing in multi-rail systems. The discharge path is inactive when EN is high, preserving regulation integrity in MIC5504-2.2YMT-TZ.
What output capacitor value is required for stable operation of MIC5504-2.2YMT-TZ?
MIC5504-2.2YMT-TZ requires a minimum 1 μF ceramic output capacitor (X5R or X7R dielectric recommended) for guaranteed stability across –40°C to +125°C. Larger values do not improve performance significantly, and Y5V/Z5U types are discouraged due to >50% capacitance loss over temperature. Using exactly 1 μF X7R ensures optimal transient response and phase margin without overdesigning the output stage for MIC5504-2.2YMT-TZ.
Is MIC5504-2.2YMT-TZ suitable for RF transmitter applications?
No - the MIC5504-2.2YMT-TZ datasheet explicitly states it is "not suitable for RF transmitter systems." Its PSRR (60 dB @ 1 kHz) and output noise (175 μVRMS) are optimized for digital and analog sensor rails, not RF PA biasing, where higher PSRR (>70 dB), lower noise (<10 μVRMS), and tighter load regulation are mandatory. For RF transmitters, select purpose-built RF LDOs with validated RF immunity specifications instead of MIC5504-2.2YMT-TZ.
MIC5504-2.2YMT-TZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 4-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- 65 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:
- 4-TDFN (1x1)
MIC5504-2.2YMT-TZ FAQ
1.How can I place an order for MIC5504-2.2YMT-TZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5504-2.2YMT-TZ 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 MIC5504-2.2YMT-TZ reliable?
The price and inventory of MIC5504-2.2YMT-TZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5504-2.2YMT-TZ is usually 5 days.
3.What payment methods are accepted for MIC5504-2.2YMT-TZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5504-2.2YMT-TZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5504-2.2YMT-TZ?
MIC5504-2.2YMT-TZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5504-2.2YMT-TZ 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 MIC5504-2.2YMT-TZ?
For technical support, including MIC5504-2.2YMT-TZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5504-2.2YMT-TZ requirements.
6.How does Aetrix verify that MIC5504-2.2YMT-TZ is sourced from the original manufacturer or authorized distributors?
All MIC5504-2.2YMT-TZ 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 MIC5504-2.2YMT-TZ meets industry standards.
7.What is the process for return or replacement of MIC5504-2.2YMT-TZ?
All MIC5504-2.2YMT-TZ units undergo pre-shipment inspection (PSI). If there is an issue with MIC5504-2.2YMT-TZ, 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 MIC5504-2.2YMT-TZ part is unused and in its original packaging.
Return procedure for MIC5504-2.2YMT-TZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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