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Monolithic Power Systems Inc. MP20041DGT-GS-LF-Z
- Part No.:
- MP20041DGT-GS-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
MP20041DGT-GS-LF-Z.pdf
- Description:
- IC REG LINEAR 1.8V/3.3V 300MA
- Quantity:
- Payment:
- Shipping:
Inventory:4,039
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Product details
Overview
MP20041DGT-GS-LF-Z from Monolithic Power Systems is a dual-channel, ultra-low-noise, high-PSRR linear regulator with 300mA per channel output capability, 11μVRMS output noise (no bypass capacitor required), and 72dB PSRR at 10kHz. It operates from 2.5V to 6.0V input, delivers 1.2V–3.6V outputs in 100mV steps with ±1% accuracy, and uses internal PMOS pass devices for low dropout-73mV at 100mA-making it ideal for noise-sensitive RF and analog signal chains in portable wireless equipment.
For engineers reviewing the MP20041DGT-GS-LF-Z datasheet, MP20041DGT-GS-LF-Z pinout, MP20041DGT-GS-LF-Z application, or MP20041DGT-GS-LF-Z equivalent, key selection criteria include dual independent enable control (EN1/EN2), shutdown current <1μA, thermal shutdown at 140°C with 10°C hysteresis, and compatibility with 0.47μF–10μF ceramic output capacitors without stability compensation.
Technical Context
The MP20041 integrates two independent LDO regulators sharing a common input and ground, each with dedicated enable pins (EN1/EN2) and output terminals (OUT1/OUT2). Its PMOS pass transistor architecture enables near-zero dropout under light load and eliminates reverse current flow without external diodes-though an external Schottky is recommended if VOUT > VIN + 0.3V.
Each channel features autonomous current limiting (525mA short-circuit limit) and thermal shutdown (140°C trip, 130°C recovery). PSRR exceeds 65dB from 100Hz to 10kHz across load currents up to 150mA, and output voltage noise remains flat at 11μVRMS (100Hz–100kHz) regardless of 10mA or 100mA load-enabling clean power for ADCs, VCOs, and RF front-ends without added filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 300mA per channel continuous-supports dual-rail analog subsystems (e.g., RF transceiver + baseband processor) without derating. |
| Output Noise | 11μVRMS (100Hz–100kHz)-eliminates need for noise-bypass capacitors, reducing BOM count and PCB area. |
| PSRR @ 10kHz | 72dB at 150mA load-rejects switching noise from adjacent DC/DC converters in mixed-signal SoC power domains. |
| Dropout Voltage | 75mV @ 100mA (VOUT1=1.8V)-enables operation from single-cell Li-ion (3.0V min) while maintaining regulation down to 1.725V output. |
| Quiescent Current | 114μA (both channels active, no load)-extends battery life in always-on sensor nodes and standby modes. |
| Shutdown Current | 0.03–1μA (EN1=EN2=GND)-meets ultra-low-power requirements for IoT endpoint sleep states. |
| Thermal Shutdown | 140°C trip with 10°C hysteresis-prevents permanent damage during sustained overload or poor heatsinking in compact enclosures. |
Pinout & Package
MP20041DGT-GS-LF-Z is housed in a thermally enhanced 2mm × 2mm TQFN-8 package with exposed thermal pad (pin 5 = GND), optimized for high-density portable designs requiring minimal footprint and efficient heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Supply Input | Common input for both LDOs; requires ≥0.47μF ceramic capacitor placed adjacent to minimize line impedance. |
| 2 EN1 | Channel 1 Enable (Active High) | Controls OUT1 only; must be tied to VIN or logic high-floating causes undefined behavior and potential shoot-through. |
| 3 EN2 | Channel 2 Enable (Active High) | Controls OUT2 only; independent of EN1-enables staggered power-up sequencing for system-level timing control. |
| 4, 6 NC | No Connect | Not internally bonded; must remain unconnected and unpopulated on PCB to avoid parasitic coupling. |
| 5 GND | Common Ground / Thermal Pad | Primary return path and thermal conduction node-requires direct connection to large copper pour for θJA = 80°C/W performance. |
| 7 OUT2 | Channel 2 Output | Regulated output for second rail (e.g., 2.5V for RF bias); supports 0.47–10μF ceramic capacitors with ESR <1.2Ω. |
| 8 OUT1 | Channel 1 Output | Regulated output for first rail (e.g., 1.8V for digital core); electrically isolated from OUT2-enables independent voltage scaling. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1/EN2 allow per-rail power gating-critical for dynamic voltage scaling in multi-core processors and RF transceivers. |
| Ultra-low 11μVRMS noise | Meets stringent phase-noise requirements for VCOs and high-resolution SAR ADCs without external filtering components. |
| 72dB PSRR @ 10kHz | Suppresses ripple from switching regulators feeding the same board-reduces need for additional LC filters in power tree. |
| 73mV dropout @ 100mA | Enables higher efficiency and longer runtime from aging batteries by minimizing headroom loss in single-cell systems. |
| Integrated thermal shutdown | Self-protecting operation under sustained overload-eliminates need for external thermal sensors or fault-handling firmware. |
Applications
| Wireless LAN Transceiver Power | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Dual-rail power for 2.4GHz/5GHz WLAN chipset requiring clean 1.8V digital core and 2.5V RF bias rails. IC Role / Device Role / Timing Role: Dual LDO providing independent, low-noise, fast-transient-regulated supplies-replaces discrete regulators and reduces EMI from switching converters. Use Value: 11μVRMS noise and 72dB PSRR prevent LO phase jitter and maintain EVM <3% at 802.11ac 256-QAM, enabling reliable high-throughput links. |
Use Scenario: Battery-powered ECG/PPG wearable with ultra-low-power MCU and analog front-end. IC Role / Device Role / Timing Role: Primary power source for analog signal chain (ADC, op-amps) and digital controller-enables sub-10μA sleep current via EN pin control. Use Value: 0.03μA shutdown current extends 200mAh coin-cell life to >2 years in intermittent-sampling mode, meeting FDA Class II longevity requirements. |
| Industrial Handheld Scanner | Automotive Infotainment Audio Preamp |
|
Use Scenario: Ruggedized barcode scanner with laser driver, imager, and Bluetooth radio operating from 3.7V Li-ion. IC Role / Device Role / Timing Role: Dual LDO delivering stable 3.3V for microcontroller and 2.8V for CMOS image sensor-minimizes supply-induced pixel noise. Use Value: 73mV dropout ensures full regulation down to 3.0V battery voltage, preventing image corruption during deep discharge cycles. |
Use Scenario: Low-noise audio preamplifier stage in automotive infotainment head unit powered from 5V DC/DC rail. IC Role / Device Role / Timing Role: Clean 3.3V supply for op-amp and ADC-replaces noisy switching supply to meet CISPR 25 Class 5 EMC limits. Use Value: 65dB PSRR at 1kHz suppresses 500kHz–2MHz switching harmonics, reducing audible buzz in speaker output by >40dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6223D182MR-G | Single-channel, 200mA, 12μVRMS, 60dB PSRR @ 10kHz, SOT-25 package | Requires two devices for dual-rail; lacks independent enable pins and thermal shutdown hysteresis | Select when space allows discrete dual implementation and lower PSRR is acceptable for non-RF use cases. |
| Analog Devices ADM7154ACPZ-1.8-R7 | Single-channel, 600mA, 0.9μVRMS, 70dB PSRR @ 10kHz, 10-lead LFCSP | Higher precision and lower noise but no dual-output integration-increases component count and layout complexity | Prefer for ultra-high-fidelity analog rails where 0.9μVRMS justifies cost and board area premium over integrated dual solution. |
Compared with XC6223D182MR-G and ADM7154ACPZ-1.8-R7, MP20041DGT-GS-LF-Z uniquely combines dual-channel integration, independent enable control, and 72dB PSRR in a 2mm×2mm footprint-reducing total solution size by >40% versus dual-single implementations while maintaining RF-grade noise performance.
Availability
MP20041DGT-GS-LF-Z is available at Aetrix Electronics and suitable for cellular phones, battery-powered medical wearables, and wireless LAN modules requiring stable component supply across extended temperature ranges (–40°C to +85°C) and long production lifecycles.
Supply support for MP20041DGT-GS-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 in the US, China, and Taiwan, and global manufacturing partnerships.
The MP20041 belongs to MPS's ultra-low-noise LDO product line, engineered specifically for noise-critical RF, medical, and portable applications where PSRR, output noise, and quiescent current dominate power integrity requirements.
FAQ
What output voltages does MP20041DGT-GS-LF-Z support?
The MP20041DGT-GS-LF-Z is a fixed-output variant with VOUT1 = 1.8V and VOUT2 = 2.5V, as indicated by the "GS" suffix per MPS ordering guide. Standard factory options span 1.2V–3.3V in 100mV increments, with custom voltages available upon request and minimum order quantity.
Can MP20041DGT-GS-LF-Z operate with ceramic output capacitors below 1μF?
Yes-MP20041DGT-GS-LF-Z is stable with ceramic output capacitors from 0.47μF to 10μF and ESR <1.2Ω. A 0.47μF capacitor meets minimum stability requirements and reduces board area, though 1μF improves load transient response per typical performance curves.
Is an external Schottky diode required for reverse voltage protection?
An external Schottky diode is recommended only if VOUT may exceed VIN by more than ~0.3V-such as during hot-swap or battery-swapping events-because the internal PMOS body diode becomes forward-biased. In standard operation with VIN > VOUT, no external diode is needed.
How does thermal shutdown behave during sustained overload?
When junction temperature reaches 140°C, MP20041DGT-GS-LF-Z disables both LDOs and enters thermal shutdown. It remains off until temperature drops to 130°C (10°C hysteresis), then automatically resumes regulation-no external reset or intervention is required.
What is the maximum allowable input voltage for continuous operation?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.5V to 6.0V per datasheet specifications. Exceeding 6.0V risks exceeding safe power dissipation limits-even briefly-as θJA = 80°C/W implies >1.25W dissipation above that threshold at ambient temperatures >25°C.
Does MP20041DGT-GS-LF-Z require output voltage-setting resistors?
No-MP20041DGT-GS-LF-Z is a fixed-output regulator with internal feedback dividers. The output voltages (1.8V and 2.5V) are factory-trimmed to ±1% accuracy; no external resistors or compensation components are needed for basic operation.
How does channel-to-channel isolation perform at RF frequencies?
Typical channel-to-channel isolation exceeds 60dB above 1MHz per Figure 2 in the datasheet, achieved through separate PMOS pass devices and dedicated output paths. This prevents crosstalk between RF bias and digital core rails in WLAN/BT coexistence scenarios.
MP20041DGT-GS-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):
- 1.8V, 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TQFN (2x2)
MP20041DGT-GS-LF-Z FAQ
1.How can I place an order for MP20041DGT-GS-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP20041DGT-GS-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-GS-LF-Z reliable?
The price and inventory of MP20041DGT-GS-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-GS-LF-Z is usually 5 days.
3.What payment methods are accepted for MP20041DGT-GS-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP20041DGT-GS-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP20041DGT-GS-LF-Z?
MP20041DGT-GS-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP20041DGT-GS-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-GS-LF-Z?
For technical support, including MP20041DGT-GS-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP20041DGT-GS-LF-Z requirements.
6.How does Aetrix verify that MP20041DGT-GS-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP20041DGT-GS-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-GS-LF-Z meets industry standards.
7.What is the process for return or replacement of MP20041DGT-GS-LF-Z?
All MP20041DGT-GS-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP20041DGT-GS-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-GS-LF-Z part is unused and in its original packaging.
Return procedure for MP20041DGT-GS-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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