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Monolithic Power Systems Inc. MP20041DGT-SS-LF-Z
- Part No.:
- MP20041DGT-SS-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
MP20041DGT-SS-LF-Z.pdf
- Description:
- IC REG LINEAR 3.3V/3.3V 8TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,707
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Product details
Overview
MP20041DGT-SS-LF-Z from Monolithic Power Systems is a dual-channel, ultra-low-noise, high-PSRR linear regulator delivering 3.3V/3.3V outputs with ±1% accuracy, 300mA per channel, 11μVRMS output noise (no bypass cap required), and 72dB PSRR at 10kHz - designed for RF-sensitive power rails in battery-powered wireless systems.
For engineers reviewing the MP20041DGT-SS-LF-Z datasheet, MP20041DGT-SS-LF-Z pinout, MP20041DGT-SS-LF-Z application, or MP20041DGT-SS-LF-Z equivalent, this part supports independent enable control (EN1/EN2), operates from 2.5V–6.0V input, features PMOS pass devices with 73mV dropout at 100mA, and integrates thermal shutdown and current limit protection.
Technical Context
The MP20041DGT-SS-LF-Z integrates two independent LDOs sharing a common input and ground, each with dedicated active-high enable pins (EN1/EN2) and output terminals (OUT1/OUT2). Its internal PMOS pass transistors enable low dropout and near-zero reverse current without external diodes under normal operation.
It achieves 11μVRMS integrated noise (100Hz–100kHz) via optimized internal bandgap and error amplifier design, and delivers 72dB PSRR at 10kHz due to high-gain feedback architecture and low-impedance output stage - critical for powering VCOs, ADCs, and RF front-ends where supply ripple directly impacts signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3V / 3.3V (factory-trimmed, ±1% accuracy over -40°C to +85°C) |
| Max Output Current | 300mA per channel - supports dual-core microcontrollers or RF+baseband SoC power domains |
| PSRR @ 10kHz | 72dB - suppresses switching noise from adjacent DC/DC converters feeding clean analog/RF supplies |
| Output Noise | 11μVRMS (100Hz–100kHz, no external bypass capacitor needed - reduces BOM count and board area) |
| Dropout Voltage | 73mV @ 100mA - enables stable 3.3V output from Li-ion (3.4V min) or 3.6V supply rails |
| Quiescent Current | 114μA (both channels enabled, no load) - extends battery life in always-on sensor nodes |
| Shutdown Current | 0.03–1μA (EN1=EN2=GND) - suitable for deep-sleep modes in portable IoT devices |
Pinout & Package
MP20041DGT-SS-LF-Z is housed in a thermally enhanced 2mm × 2mm TQFN-8 package with exposed thermal pad (pin 5 = GND), supporting high-density PCB layouts and efficient heat dissipation in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Common Input Supply | Accepts 2.5V–6.0V input; shared by both LDOs - requires ≥0.47μF ceramic decoupling close to pin |
| 2 EN1 | Channel 1 Enable | Active-high logic control (VIH ≥1.6V); must not float - ties to VIN for always-on operation |
| 3 EN2 | Channel 2 Enable | Independent active-high enable for second LDO; allows staggered power-up or selective shutdown |
| 4, 6 NC | No Connect | Not internally bonded - leave unconnected and un-routed on PCB |
| 5 GND | Power Ground | Common return path and thermal pad connection point - must be tied to large copper area for thermal performance |
| 7 OUT2 | Channel 2 Output | Regulated 3.3V output (VOUT2); drives loads up to 300mA with <100mV line/load regulation error |
| 8 OUT1 | Channel 1 Output | Regulated 3.3V output (VOUT1); electrically isolated from OUT2 - supports independent load transient response |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1/EN2 allow per-channel power sequencing - essential for SoC boot order compliance and low-power state management |
| Ultra-low 11μVRMS noise | Eliminates need for external noise-reduction capacitors - simplifies layout and avoids ESR-related stability risks |
| 72dB PSRR at 10kHz | Rejects mid-frequency switching noise from buck converters - preserves SNR in RF receivers and precision ADCs |
| PMOS pass element architecture | Enables near-zero reverse current and fast load transient recovery (<10μs settling for 10mA→100mA step) |
| Integrated thermal shutdown | Triggers at 140°C with 10°C hysteresis - prevents damage during sustained overload or poor heatsinking |
Applications
| Wireless LAN Transceiver Power | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Powers RF transceiver IC (e.g., Wi-Fi 6 PHY) requiring ultra-clean 3.3V supply with minimal phase noise impact. IC Role / Device Role / Timing Role: Dual LDO supplies separate 3.3V rails for RF front-end and digital baseband - isolating noise coupling paths. Use Value: 11μVRMS noise and 72dB PSRR prevent LO phase jitter degradation, maintaining EVM < -35dB in 802.11ax systems. |
Use Scenario: Powers ultra-low-power MCU and analog front-end in wearable ECG patch operating from coin-cell battery. IC Role / Device Role / Timing Role: Provides regulated 3.3V for MCU core and 3.3V for precision ADC reference - both independently controllable via EN pins. Use Value: 114μA quiescent current and 0.03μA shutdown current extend battery life to >12 months in intermittent-sampling mode. |
| Laptop Subsystem Power | Industrial Handheld Scanner |
|
Use Scenario: Supplies 3.3V to embedded security controller and TPM module in notebook platform with strict EMC requirements. IC Role / Device Role / Timing Role: Delivers low-noise, high-PSRR power independent of main system rail - immune to CPU/GPU load transients. Use Value: 73mV dropout ensures stable operation down to 3.4V input (single-cell Li-ion), enabling compact battery integration. |
Use Scenario: Powers barcode imaging sensor and Bluetooth LE radio in rugged handheld scanner used in warehouse logistics. IC Role / Device Role / Timing Role: Dual 3.3V outputs drive image sensor (OUT1) and BLE SoC (OUT2), each enabled only during active use. Use Value: Independent EN control reduces average system current by 42% versus single-channel LDO with external logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6223D331MR-G | Single-output (3.3V), 200mA max, 45dB PSRR @ 10kHz, 25μVRMS noise | Lacks dual output and independent enables - requires two devices for same functionality | Select only if dual-channel integration is unnecessary and lower PSRR/noise specs are acceptable |
| Analog Devices ADP5060ACBZ-3.3-R7 | 3.3V/3.3V dual LDO, 300mA, but 25μVRMS noise and 60dB PSRR @ 10kHz; uses NMOS pass device | Higher noise degrades RF receiver sensitivity; NMOS architecture requires higher dropout voltage | Prefer MP20041DGT-SS-LF-Z when powering sensitive RF or high-resolution ADC circuits |
Compared with XC6223D331MR-G and ADP5060ACBZ-3.3-R7, MP20041DGT-SS-LF-Z uniquely combines dual 300mA outputs, 11μVRMS noise, 72dB PSRR, and PMOS-based low-dropout operation - making it optimal for space-constrained, noise-sensitive, battery-operated RF systems.
Availability
MP20041DGT-SS-LF-Z is available at Aetrix Electronics and suitable for wireless LAN transceivers, portable medical sensors, and industrial handheld scanners requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for MP20041DGT-SS-LF-Z 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers across Asia and North America and global manufacturing partnerships.
The MP20041 belongs to MPS's ultra-low-noise LDO product line, engineered specifically for powering RF, precision analog, and battery-critical subsystems where PSRR, noise, and quiescent current dominate system-level performance.
FAQ
What is the maximum input voltage rating for MP20041DGT-SS-LF-Z?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.5V to 6.0V. Exceeding 6.5V risks permanent damage to the internal PMOS pass devices and protection circuitry. For reliable operation with margin, keep VIN ≤ 6.0V under all conditions including transient spikes.
Can MP20041DGT-SS-LF-Z operate with only one channel enabled?
Yes - EN1 and EN2 are fully independent. Driving EN1 high while holding EN2 low disables only OUT2, leaving OUT1 active and regulating at 3.3V. This enables flexible power sequencing and dynamic power gating in multi-rail systems without external logic.
Is an external bypass capacitor required to achieve 11μVRMS noise?
No - the 11μVRMS noise specification is measured with only a 1μF ceramic output capacitor and no additional noise-bypass capacitor. The internal architecture eliminates the need for a 10nF–100nF ceramic bypass cap typically required by competitive LDOs to reach sub-20μVRMS performance.
What is the thermal resistance (θJA) of the TQFN-8 package in standard layout?
The datasheet specifies θJA = 80°C/W when mounted on a JEDEC-standard 4-layer PCB with 2oz copper and thermal vias under the exposed pad. Achieving this value requires connecting pin 5 (GND) to a ≥100mm² copper pour with ≥4 thermal vias (0.3mm diameter) to inner ground planes.
Does MP20041DGT-SS-LF-Z support reverse current blocking?
Yes - the internal PMOS pass devices inherently block reverse current flow from OUT to IN. Unlike NMOS-based LDOs, no external Schottky diode is required to prevent backfeed, simplifying design and eliminating forward voltage drop losses.
How does load transient response compare between OUT1 and OUT2?
Both channels exhibit identical load transient behavior: typical overshoot <20mV and settling time <5μs for a 10mA→100mA step, verified in datasheet Figures 7–10. Channel-to-channel isolation exceeds 60dB, ensuring minimal crosstalk during simultaneous load steps.
What is the minimum output capacitor value for stable operation?
A 0.47μF X5R/X7R ceramic capacitor with ESR <1.2Ω is the minimum for guaranteed stability. Larger values (up to 10μF) improve load transient response and reduce output ripple, but do not affect loop stability - unlike many older LDO architectures.
MP20041DGT-SS-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V, 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.22V @ 300mA (Typ), -
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 72dB ~ 68dB (10kHz ~ 100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TQFN (2x2)
MP20041DGT-SS-LF-Z FAQ
1.How can I place an order for MP20041DGT-SS-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP20041DGT-SS-LF-Z 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 MP20041DGT-SS-LF-Z reliable?
The price and inventory of MP20041DGT-SS-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP20041DGT-SS-LF-Z is usually 5 days.
3.What payment methods are accepted for MP20041DGT-SS-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP20041DGT-SS-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP20041DGT-SS-LF-Z?
MP20041DGT-SS-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP20041DGT-SS-LF-Z 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 MP20041DGT-SS-LF-Z?
For technical support, including MP20041DGT-SS-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP20041DGT-SS-LF-Z requirements.
6.How does Aetrix verify that MP20041DGT-SS-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP20041DGT-SS-LF-Z 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 MP20041DGT-SS-LF-Z meets industry standards.
7.What is the process for return or replacement of MP20041DGT-SS-LF-Z?
All MP20041DGT-SS-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP20041DGT-SS-LF-Z, 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 MP20041DGT-SS-LF-Z part is unused and in its original packaging.
Return procedure for MP20041DGT-SS-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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