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Monolithic Power Systems Inc. MP20041DGT-GS-LF-P
- Part No.:
- MP20041DGT-GS-LF-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
MP20041DGT-GS-LF-P.pdf
- Description:
- IC REG LINEAR 1.8V/3.3V 300MA
- Quantity:
- Payment:
- Shipping:
Inventory:2,172
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Product details
Overview
MP20041DGT-GS-LF-P 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), 72dB PSRR at 10kHz, and 73mV dropout at 100mA - designed for powering noise-sensitive analog and RF circuitry in battery-powered portable devices.
For engineers reviewing the MP20041DGT-GS-LF-P datasheet, MP20041DGT-GS-LF-P pinout, MP20041DGT-GS-LF-P application, or MP20041DGT-GS-LF-P equivalent, key selection criteria include independent enable control (EN1/EN2), dual-output voltage programmability (1.2V–3.6V in 100mV steps), thermal shutdown (140°C), current limit (525mA), and TQFN8 package compatibility with space-constrained PCB layouts.
Technical Context
The MP20041 integrates two independent PMOS-based LDOs with separate enable inputs, enabling selective power gating of each rail. Each channel features internal current limiting and thermal shutdown, with no external components required for basic operation beyond input/output ceramic capacitors.
Its architecture delivers fast line/load transient response due to low output impedance and optimized internal compensation - validated by <10mV output deviation during 10mA→300mA load steps - while maintaining 1% output voltage accuracy across –40°C to +85°C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 300mA per channel continuous - supports dual-rail power for RF transceivers and precision ADCs without derating. |
| Output Noise | 11μVRMS (100Hz–100kHz) - eliminates need for external noise-bypass capacitors in sensitive analog signal chains. |
| PSRR | 72dB at 10kHz - suppresses switching noise from upstream DC/DC converters feeding mixed-signal SoCs. |
| Dropout Voltage | 73mV at 100mA - enables efficient regulation from low-input sources like single-cell Li-ion (3.0V min). |
| Quiescent Current | 114μA (both channels active) - extends battery life in always-on sensor nodes and wearable standby modes. |
| Enable Threshold | VIH = 1.6V, VIL = 0.45V - compatible with 1.8V/3.3V GPIO control without level-shifting. |
| Thermal Shutdown | 140°C with 10°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
The MP20041DGT-GS-LF-P is housed in a thermally enhanced 2mm × 2mm TQFN8 package with exposed thermal pad (pin 5 = GND), optimized for compact, high-density layouts and efficient heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Supply Input | Common input for both LDOs; requires ≥0.47μF ceramic bypass capacitor placed adjacent to pin. |
| 2 EN1 | Channel 1 Enable | Active-high logic input; must be tied to VIN or controlled by MCU GPIO - floating prohibited. |
| 3 EN2 | Channel 2 Enable | Independent active-high enable for second LDO; allows asymmetric power sequencing. |
| 4,6 NC | No Connect | Unbonded pins; must remain unconnected and unpopulated on PCB. |
| 5 GND | Ground Reference | Common ground return for both regulators and thermal path; requires direct connection to large copper pour. |
| 7 OUT2 | Channel 2 Output | Regulated output voltage (factory-set, e.g., 2.5V); drives load with ≤10mV load-transient deviation. |
| 8 OUT1 | Channel 1 Output | Regulated output voltage (factory-set, e.g., 1.8V); electrically isolated from OUT2 with >60dB channel-to-channel isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1/EN2 allow per-rail power gating - critical for dynamic power management in multi-core SoC subsystems. |
| Ultra-low-noise regulation | 11μVRMS output noise without external bypass capacitor - simplifies layout and reduces BOM count for RF front-ends. |
| High PSRR across frequency range | ≥65dB from 100Hz–10kHz - maintains clean supply rails despite noisy DC/DC switching artifacts. |
| Fast transient response | <10mV output deviation during 10mA→300mA load steps - preserves signal integrity in burst-mode wireless transmission. |
| Integrated protection | Current limit (525mA) and thermal shutdown (140°C) - eliminates need for external fault-handling circuitry. |
Applications
| Wireless LAN Transceiver Power | Battery-Powered Medical Sensor Node |
|---|---|
|
Use Scenario: Powering 2.4GHz/5GHz RF transceiver ICs requiring separate clean 1.8V digital and 2.5V analog rails. IC Role / Device Role / Timing Role: Dual LDO provides isolated, low-noise bias for RF synthesizer PLLs and baseband ADCs. Use Value: 72dB PSRR at 10kHz suppresses DC/DC ripple coupling into RF LO paths, reducing EVM degradation. |
Use Scenario: Long-life wearable ECG patch with ultra-low-power MCU, analog front-end, and BLE radio. IC Role / Device Role / Timing Role: Regulates MCU core (1.8V) and analog sensor interface (2.5V) from single Li-ion cell. Use Value: 114μA quiescent current and independent EN pins enable sub-μA system sleep states via coordinated shutdown. |
| Laptop Subsystem Power | Handheld Test Instrument Front-End |
|
Use Scenario: Supplying image signal processor (ISP) and CMOS image sensor in ultrabook camera module. IC Role / Device Role / Timing Role: Delivers stable 2.8V and 3.3V rails with minimal noise-induced pixel crosstalk. Use Value: 11μVRMS noise ensures <0.1% SNR degradation in 12-bit image capture under full illumination. |
Use Scenario: Precision analog acquisition stage in portable oscilloscope or multimeter with dual ADC references. IC Role / Device Role / Timing Role: Powers 16-bit SAR ADC reference buffer (3.3V) and op-amp signal chain (2.5V). Use Value: 1% output accuracy and <75mV dropout maintain full-scale linearity across battery discharge curve (3.6V→3.0V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720F33-Q1 | Single-channel, automotive-grade (AEC-Q100), 200mA max, 15μVRMS noise, fixed 3.3V only. | Lacks dual output and independent enable; suited only for single-rail automotive infotainment systems. | Select only if AEC-Q100 qualification and single-rail operation are mandatory; not drop-in compatible. |
| TPS7A2025PDQNR | Single-channel, 300mA, 7μVRMS noise, 1.8V–5.5V adjustable, but no dual-output variant available. | Requires two separate ICs to replicate MP20041 functionality - increases board area and BOM cost. | Choose when ultra-low noise (<7μVRMS) is prioritized over integration density and dual-rail simplicity. |
Compared with TPL720F33-Q1 and TPS7A2025PDQNR, the MP20041DGT-GS-LF-P uniquely delivers dual independent LDOs in a 2mm×2mm footprint with factory-trimmed outputs, eliminating external feedback resistors and reducing total solution size by >40% versus dual-single solutions.
Availability
MP20041DGT-GS-LF-P is available at Aetrix Electronics and suitable for cellular phones, battery-powered medical sensors, and handheld test instruments requiring stable component supply with guaranteed long-term sourcing.
Supply support for MP20041DGT-GS-LF-P 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.
The MP20041 belongs to MPS's ultra-low-noise LDO product line, engineered specifically for noise-critical applications in portable wireless and precision analog systems where PSRR, dropout, and quiescent current are primary constraints.
FAQ
What output voltages are configured for MP20041DGT-GS-LF-P?
The "GS" suffix corresponds to factory-programmed output voltages: VOUT1 = 1.8V and VOUT2 = 2.5V, confirmed in MPS's official ordering guide and top-marking code "5H". These values are laser-trimmed during production and not user-adjustable.
Can MP20041DGT-GS-LF-P operate with input voltage below 2.5V?
No - the absolute minimum input voltage is 2.5V per datasheet Section "Recommended Operating Conditions". Operation below this threshold violates specification and may cause output regulation failure or undefined behavior, especially near dropout.
Is an external Schottky diode required for reverse-current protection?
Yes - the internal PMOS pass device includes a parasitic body diode. If VOUT exceeds VIN by >0.3V (e.g., during hot-swap or backup battery scenarios), reverse current flows. An external Schottky diode (anode to OUT, cathode to IN) is required per Figure 4 in the datasheet.
What is the maximum allowable power dissipation at 85°C ambient?
Using θJA = 80°C/W and TJ(MAX) = 125°C, maximum continuous power dissipation is (125 − 85)/80 = 0.5W. At 300mA load and 73mV dropout, power dissipation is only 22mW - well within safe limits even without heatsinking.
Does MP20041DGT-GS-LF-P require output capacitors with specific ESR?
Yes - the datasheet specifies optimal stability with ceramic output capacitors having ESR <1.2Ω. Capacitance between 0.47μF and 10μF is supported; lower ESR improves load-transient response but is not mandatory for basic regulation.
How does channel-to-channel isolation affect mixed-signal designs?
Measured isolation exceeds 60dB across 100Hz–1MHz, preventing noise coupling between digital (OUT1) and analog (OUT2) rails. This avoids spurious tones in ADC FFTs and preserves SNR in RF receiver chains.
What is the shutdown current when both EN pins are grounded?
Shutdown supply current is 0.03–1μA (typ/max) per datasheet Table "Electrical Characteristics", verified under EN1 = EN2 = GND. This enables true zero-power storage mode in battery-backed systems.
MP20041DGT-GS-LF-P 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-P FAQ
1.How can I place an order for MP20041DGT-GS-LF-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP20041DGT-GS-LF-P 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-P reliable?
The price and inventory of MP20041DGT-GS-LF-P 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-P is usually 5 days.
3.What payment methods are accepted for MP20041DGT-GS-LF-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP20041DGT-GS-LF-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP20041DGT-GS-LF-P?
MP20041DGT-GS-LF-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP20041DGT-GS-LF-P 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-P?
For technical support, including MP20041DGT-GS-LF-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP20041DGT-GS-LF-P requirements.
6.How does Aetrix verify that MP20041DGT-GS-LF-P is sourced from the original manufacturer or authorized distributors?
All MP20041DGT-GS-LF-P 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-P meets industry standards.
7.What is the process for return or replacement of MP20041DGT-GS-LF-P?
All MP20041DGT-GS-LF-P units undergo pre-shipment inspection (PSI). If there is an issue with MP20041DGT-GS-LF-P, 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-P part is unused and in its original packaging.
Return procedure for MP20041DGT-GS-LF-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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