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Monolithic Power Systems Inc. MP20041DGT-GJ-LF-Z
- Part No.:
- MP20041DGT-GJ-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
MP20041DGT-GJ-LF-Z.pdf
- Description:
- IC REG LINEAR 1.8V/2.5V 8TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,707
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Product details
Overview
MP20041DGT-GJ-LF-Z from Monolithic Power Systems is a dual-channel, ultra-low-noise, high-PSRR linear regulator with fixed 1.8V and 2.5V outputs, 300mA per channel, 11μVRMS output noise (no bypass capacitor required), and 72dB PSRR at 10kHz - designed for powering sensitive analog and RF circuitry in battery-powered portable devices.
For engineers reviewing the MP20041DGT-GJ-LF-Z datasheet, MP20041DGT-GJ-LF-Z pinout, MP20041DGT-GJ-LF-Z application, or MP20041DGT-GJ-LF-Z equivalent, key selection criteria include dual independent enable control, PMOS pass transistor architecture enabling low dropout (75mV @100mA, 1.8V rail), thermal shutdown at 140°C, and TQFN8 package compatibility with space-constrained PCB layouts.
Technical Context
The MP20041 integrates two independent LDOs using internal PMOS pass elements, each with dedicated EN pins (EN1/EN2) for asynchronous channel control and near-zero shutdown current (0.03–1μA). Its architecture eliminates body diode reverse conduction risk via inherent PMOS topology, requiring no external reverse-blocking diode under normal operation.
It delivers stable regulation across 2.5V–6.0V input while maintaining 1% output accuracy, sub-100mV dropout at light-to-moderate loads, and fast transient response enabled by low-ESR ceramic capacitor support (0.47–10μF). Channel-to-channel isolation exceeds 60dB above 100kHz, critical for mixed-signal SoC power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 1.8V (Channel 1), 2.5V (Channel 2) - fixed, factory-trimmed, ±1% accuracy over -40°C to +85°C |
| Max Output Current | 300mA per channel - supports simultaneous dual-rail loads without derating |
| PSRR @ 10kHz | 72dB - suppresses switching noise from upstream DC/DC converters feeding RF/analog sections |
| Output Noise | 11μVRMS (100Hz–100kHz) - enables direct powering of VCOs, ADCs, and PLLs without added filtering |
| Dropout Voltage | 75mV @ 100mA (1.8V rail); 60mV @ 100mA (2.5V rail) - minimizes headroom loss in single-cell Li-ion systems |
| Quiescent Current | 114μA (both channels active, no load) - extends battery life in always-on sensor nodes |
| Shutdown Current | 0.03–1μA (both EN pins grounded) - meets ultra-low-power sleep mode requirements |
Pinout & Package
MP20041DGT-GJ-LF-Z is housed in a thermally enhanced 2mm × 2mm TQFN-8 package with exposed thermal pad (pin 5 = GND), optimized for compact, high-density layouts and efficient heat dissipation on standard 4-layer PCBs (θJA = 80°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Common Input Supply | Shared 2.5–6.0V input for both regulators; requires ≥0.47μF ceramic decoupling adjacent to pin |
| 2 (EN1) | Channel 1 Enable | Active-high logic control (VIH ≥ 1.6V); must not float - tie to VIN or MCU GPIO for sequencing |
| 3 (EN2) | Channel 2 Enable | Independent active-high enable for second LDO; enables staggered power-up or rail isolation |
| 4, 6 (NC) | No Connect | Unbonded die pads; leave unconnected and unpopulated on PCB |
| 5 (GND) | Power Ground | Common return path and thermal interface; must connect to large copper pour or internal ground plane |
| 7 (OUT2) | Channel 2 Output | Regulated 2.5V supply; requires 0.47–10μF ceramic capacitor (ESR < 1.2Ω) directly at pin |
| 8 (OUT1) | Channel 1 Output | Regulated 1.8V supply; same capacitor requirements as OUT2; supports independent load transient response |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1/EN2 allow per-rail power sequencing, dynamic rail disabling, and fault containment without affecting other channel |
| Ultra-low 11μVRMS noise | Eliminates need for external noise-reduction capacitors or ferrite beads - reduces BOM count and board area |
| PMOS pass element architecture | Prevents reverse current flow from output to input; removes requirement for external blocking Schottky diode |
| 72dB PSRR at 10kHz | Effectively attenuates ripple from typical 1MHz buck converters, enabling clean analog/RF power from shared DC/DC stage |
| Thermal shutdown with 10°C hysteresis | Auto-recovery protection at 140°C junction temperature ensures robustness during sustained overload or poor heatsinking |
Applications
| Wireless LAN Modules | Portable Medical Sensors |
|---|---|
|
Use Scenario: Powering 2.4GHz/5GHz RF transceivers and baseband processors in compact Wi-Fi 6 modules. IC Role / Device Role / Timing Role: Dual-rail LDO supplying clean 1.8V core logic and 2.5V RF bias simultaneously. Use Value: 72dB PSRR and 11μVRMS noise prevent EVM degradation and maintain receiver sensitivity below –90dBm. |
Use Scenario: Regulating power for low-power ECG front-ends and Bluetooth LE microcontrollers in wearable patches. IC Role / Device Role / Timing Role: Independent 1.8V digital and 2.5V analog rails with sequenced enable for wake-up/power-down control. Use Value: 114μA quiescent current and 0.03μA shutdown current extend single-CR2032 battery life beyond 12 months. |
| Laptop Subsystems | Industrial Handheld Scanners |
|
Use Scenario: Supplying image signal processor (ISP) cores and high-speed MIPI CSI-2 interfaces in ultrabook camera modules. IC Role / Device Role / Timing Role: Low-noise dual LDO delivering tightly regulated 1.8V I/O and 2.5V analog supply with fast load transient recovery. Use Value: <10mV load-step overshoot (10→100mA) preserves ISP timing margins and prevents frame corruption. |
Use Scenario: Powering barcode laser drivers and CMOS image sensors in ruggedized handheld inventory scanners. IC Role / Device Role / Timing Role: Dual-output regulator supporting 1.8V logic and 2.5V sensor bias with thermal protection for extended field use. Use Value: 140°C thermal shutdown and 525mA current limit prevent latch-up during motor-induced voltage spikes or ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6223D182FR-G | Single-output only (1.8V), 200mA max, 40μVRMS noise, SOT-25 package | Cannot replace dual-rail functionality; requires two devices for same function, increasing footprint and cost | Select only if system uses separate regulators per rail and space allows discrete placement |
| Analog Devices ADM7154ACPZ-1.8/2.5-R7 | Fixed dual-output (1.8V/2.5V), 200mA/channel, 0.9μVRMS noise, but 120μA IQ and larger 3mm×3mm LFCSP-16 | Lower noise but lower current capability and larger package; lacks independent EN pins | Prefer when sub-1μVRMS noise is mandatory and 200mA/channel suffices; avoid when board area or sequencing is constrained |
Compared with XC6223D182FR-G and ADM7154ACPZ-1.8/2.5-R7, MP20041DGT-GJ-LF-Z uniquely balances 300mA dual-channel delivery, 11μVRMS noise, independent enable control, and 2mm×2mm footprint - making it optimal for space-limited, battery-powered RF and imaging subsystems requiring rail autonomy and low thermal overhead.
Availability
MP20041DGT-GJ-LF-Z is available at Aetrix Electronics and suitable for wireless LAN modules, portable medical sensors, and industrial handheld scanners requiring stable component supply, consistent top-marking (5H), and RoHS-compliant TQFN8 packaging.
Supply support for MP20041DGT-GJ-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.
This device belongs to MPS's ultra-low-noise LDO product line, engineered specifically for noise-sensitive applications in portable communications, medical wearables, and imaging systems where PSRR, dropout, and quiescent current are critical.
FAQ
What are the exact output voltages programmed in MP20041DGT-GJ-LF-Z?
The MP20041DGT-GJ-LF-Z is factory-configured with fixed 1.8V on OUT1 (pin 8) and 2.5V on OUT2 (pin 7), confirmed by top marking "5H" per MPS ordering guide. These values are trimmed to ±1% accuracy across temperature and load, with no external resistor network required.
Can EN1 and EN2 be tied together for simultaneous control?
Yes - EN1 and EN2 may be connected to a common GPIO or logic signal for synchronized startup/shutdown. However, doing so forfeits independent rail control; the datasheet explicitly supports this configuration, and combined enable draws ≤300nA total bias current.
Is an external Schottky diode required to prevent reverse current?
No. The internal PMOS pass transistor inherently blocks reverse current flow from OUT to IN. Unlike NMOS-based LDOs, MP20041 does not require an external Schottky diode - a key differentiator confirmed in the "Reverse Current Path" section of the datasheet.
What is the minimum recommended output capacitance?
MPS specifies a minimum of 0.47μF ceramic capacitor per output (COUT1/COUT2), with ESR < 1.2Ω. Using 1μF X5R/X7R ceramics placed within 2mm of OUT pins ensures stability, optimal transient response, and full PSRR/noise performance per Figure 2 and Application Information.
How does thermal shutdown behave during sustained overload?
When junction temperature reaches 140°C, both LDOs shut down completely. After cooldown of ≥10°C (to ≤130°C), automatic restart occurs. This hysteresis prevents thermal oscillation and is verified across -40°C to +85°C ambient per Absolute Maximum Ratings table.
Does MP20041DGT-GJ-LF-Z support adjustable output voltages?
No - this variant is fixed-output only. Adjustable versions (e.g., MP20041DG-LF-Z) exist but require external feedback resistors and are not pin-compatible. MP20041DGT-GJ-LF-Z has no feedback pins and cannot be reconfigured; output voltages are laser-trimmed during wafer test.
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 Section "Recommended Operating Conditions". Exceeding 6.0V risks exceeding safe power dissipation limits even at light loads due to θJA = 80°C/W.
MP20041DGT-GJ-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, 2.5V
- 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-GJ-LF-Z FAQ
1.How can I place an order for MP20041DGT-GJ-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP20041DGT-GJ-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-GJ-LF-Z reliable?
The price and inventory of MP20041DGT-GJ-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-GJ-LF-Z is usually 5 days.
3.What payment methods are accepted for MP20041DGT-GJ-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP20041DGT-GJ-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP20041DGT-GJ-LF-Z?
MP20041DGT-GJ-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP20041DGT-GJ-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-GJ-LF-Z?
For technical support, including MP20041DGT-GJ-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP20041DGT-GJ-LF-Z requirements.
6.How does Aetrix verify that MP20041DGT-GJ-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP20041DGT-GJ-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-GJ-LF-Z meets industry standards.
7.What is the process for return or replacement of MP20041DGT-GJ-LF-Z?
All MP20041DGT-GJ-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP20041DGT-GJ-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-GJ-LF-Z part is unused and in its original packaging.
Return procedure for MP20041DGT-GJ-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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