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Monolithic Power Systems Inc. MP20056GG-18-Z
- Part No.:
- MP20056GG-18-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-TFDFN Exposed Pad
- Datasheet:
-
MP20056GG-18-Z.pdf
- Description:
- IC REG LINEAR 1.8V 250MA 8QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,948
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Product details
Overview
MP20056GG-18-Z from Monolithic Power Systems is a low-noise, high-PSRR 250mA LDO linear regulator in an 8-pin QFN-2×2mm package with fixed 1.8V output, 100mV dropout at full load, 150μA ground current, and 13μVRMS output noise (10Hz–100kHz). It serves as a precision power rail for RF transceivers and core logic in portable electronics requiring stable low-voltage bias.
For engineers reviewing the MP20056GG-18-Z datasheet, MP20056GG-18-Z pinout, MP20056GG-18-Z application, or MP20056GG-18-Z equivalent, key selection criteria include dropout voltage under 250mA load, PSRR >63dB at 1kHz, thermal shutdown threshold at 150°C, ceramic-capacitor stability, and EN pin logic thresholds (1.5V high / 0.4V low).
Technical Context
The MP20056GG-18-Z uses an internal PMOS pass transistor enabling ultra-low dropout (100mV @ 250mA) and minimal ground current (150μA @ light load). Its feedback loop is referenced to a precise 0.8V internal bandgap, supporting both fixed-output and adjustable configurations via external resistor divider.
It integrates active protection circuitry: thermal shutdown triggers at 150°C with 20°C hysteresis, short-circuit current limit ranges 350–850mA, and EN pin controls enable/disable with defined logic thresholds. PSRR remains ≥63dB from 100Hz to 10kHz, critical for noise-sensitive analog/RF stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% - ensures compatibility with 1.8V I/O and core rails of modern microcontrollers and RF ICs. |
| Max Output Current | 250mA continuous - sufficient for powering baseband processors, sensor hubs, or wireless SoCs in handheld devices. |
| Dropout Voltage | 100mV @ 250mA - enables operation from 1.9V input when regulating 1.8V, extending battery runtime in single-cell Li-ion systems. |
| Ground Current | 150μA @ 0.1mA load - minimizes quiescent power loss during sleep modes, critical for always-on subsystems. |
| Output Noise | 13μVRMS (10Hz–100kHz) - low enough to avoid phase noise degradation in VCOs and ADC reference supplies. |
| PSRR | 63dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Enable Threshold | EN high = ≥1.5V, low = ≤0.4V - compatible with standard GPIOs and allows direct control from 1.8V or 3.3V logic without level shifters. |
Pinout & Package
MP20056GG-18-Z is housed in a thermally enhanced 2mm × 2mm 8-pin QFN package with exposed thermal pad (connected to GND). The package supports high-density PCB layouts and efficient heat dissipation via soldered GND pad.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, Exposed Pad | GND | Primary thermal and electrical ground connection; must be soldered to large PCB GND plane for thermal performance and noise immunity. |
| 2 | EN | Active-high enable input; drives regulator ON/OFF; requires defined logic levels (not floating) to prevent erratic behavior. |
| 3, 4 | IN | Dual-input pins for VIN (2.5V–5.5V); internally connected but must be externally tied together and bypassed with 2.2μF capacitor. |
| 5, 6 | OUT | Regulated 1.8V output; requires 4.7μF ceramic capacitor to GND for stability and transient response. |
| 7 | NC | No internal connection; must remain unconnected and unbonded on PCB. |
| 8 | FB | Feedback input referenced to 0.8V; unused in fixed-output variants but accessible for future reconfiguration or monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Noise Regulation | 13μVRMS output noise enables clean power for RF front-ends and high-resolution ADCs without added filtering. |
| Ceramic-Capacitor Stability | Stable with standard 4.7μF X5R/X7R ceramic output capacitors - eliminates need for costly tantalum or electrolytic parts. |
| High PSRR Architecture | 63dB PSRR at 1kHz and 65dB at 100Hz - actively rejects ripple from noisy switchers in multi-rail power architectures. |
| Thermal + Current Protection | Integrated thermal shutdown (150°C) and current limiting (350–850mA) prevent damage during overload or poor heatsinking. |
| Ultra-Low Quiescent Current | 150μA ground current at light load - extends shelf life and operational time in battery-backed or energy-harvesting systems. |
Applications
| Wireless Transceiver Power | Portable Microcontroller Core Rail |
|---|---|
|
Use Scenario: Powering 2.4GHz/5GHz Wi-Fi or Bluetooth SoC RF sections where supply noise directly impacts EVM and sensitivity. IC Role / Device Role / Timing Role: Low-noise post-regulator delivering clean 1.8V bias to VCOs, LNAs, and synthesizers. Use Value: 13μVRMS noise and 63dB PSRR prevent phase noise degradation and maintain >25dB ACLR in 802.11ac transmission. |
Use Scenario: Supplying core voltage to ARM Cortex-M4/M7 MCUs operating at 1.8V in handheld medical or industrial sensors. IC Role / Device Role / Timing Role: Primary LDO for processor VDD_CORE, dynamically enabled via GPIO during active cycles. Use Value: 100mV dropout allows operation down to 1.9V input, extending usable battery range by ~12% in single-cell Li-ion systems. |
| Low-Power IoT Sensor Hub | USB-Powered Peripheral Logic |
|
Use Scenario: Regulating power for MEMS accelerometers, environmental sensors, and BLE radio in coin-cell–powered wearables. IC Role / Device Role / Timing Role: Always-on LDO supplying 1.8V to sensor interface and BLE controller in deep-sleep mode. Use Value: 150μA ground current minimizes standby drain, enabling >1-year battery life on CR2032 cells. |
Use Scenario: Generating stable 1.8V rail from USB 5V bus for FPGA I/O banks or USB PHY logic in embedded peripherals. IC Role / Device Role / Timing Role: Secondary LDO decoupling USB host noise while supporting hot-plug sequencing. Use Value: 2.5V–5.5V input range and 63dB PSRR reject USB data-line–coupled noise, preventing packet errors in high-speed enumeration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B182MR-G | 180mA max output, 250mV dropout @ 180mA, 25μVRMS noise, SOT-25 package | Limited to lower-current digital logic; lacks EN pin and thermal shutdown | Choose only for space-constrained, non-thermal, sub-180mA applications where ultra-low noise is secondary. |
| Analog Devices ADP125ARHZ-1.8-R7 | 500mA output, 135mV dropout @ 500mA, 40μVRMS noise, 3mm×3mm LFCSP | Higher current and noise; larger footprint; no NC pin for layout flexibility | Select when >250mA headroom or higher thermal margin is required, accepting trade-off in noise and size. |
Compared with XC6210B182MR-G and ADP125ARHZ-1.8-R7, MP20056GG-18-Z uniquely balances 250mA capability, 100mV dropout, 13μVRMS noise, and QFN-2×2mm footprint-making it optimal for compact, battery-sensitive RF and MCU applications where all four parameters are simultaneously critical.
Availability
MP20056GG-18-Z is available at Aetrix Electronics and suitable for notebook computers, cellular handsets, and wireless communication equipment requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for MP20056GG-18-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 MP20056 belongs to MPS's low-noise LDO product line, engineered specifically for noise-sensitive RF, portable computing, and battery-powered applications demanding high PSRR, low quiescent current, and ceramic-capacitor compatibility.
FAQ
What is the minimum input voltage required for MP20056GG-18-Z to regulate 1.8V output?
The MP20056GG-18-Z requires a minimum input voltage of 1.9V to maintain regulation, based on its 100mV dropout specification at 250mA. Absolute minimum VIN is 2.5V per datasheet operating conditions, but functional regulation begins at VIN = VOUT + dropout = 1.9V under typical conditions.
Can MP20056GG-18-Z be used with a 1μF output capacitor?
No - the MP20056GG-18-Z requires a minimum 4.7μF ceramic output capacitor for guaranteed stability and transient response. Using 1μF risks oscillation, excessive overshoot during load steps, and failure to meet PSRR/noise specifications per the datasheet design guidelines.
Is the exposed thermal pad on MP20056GG-18-Z electrically connected internally?
Yes - the exposed pad is internally connected to GND and must be soldered to a PCB GND plane. It serves dual roles: primary thermal path (reducing θJA by ~64°C/W) and low-inductance GND return, critical for noise performance and thermal reliability.
Does MP20056GG-18-Z support adjustable output voltage?
Yes - although configured as fixed 1.8V, the FB pin is accessible and referenced to 0.8V. An external resistor divider can reconfigure output from 0.8V to 5V, provided R1+R2 ≤ 10kΩ and R2 = 1kΩ (±1%) for accuracy, per the datasheet application note.
What happens if the EN pin is left floating?
Leaving the EN pin floating violates absolute maximum ratings and may cause unpredictable startup behavior, intermittent regulation, or increased ground current due to undefined gate bias on the internal enable MOSFET. The datasheet explicitly requires tying EN to VIN or GND if unused.
How does thermal shutdown behave during sustained overload?
When junction temperature exceeds 150°C, the MP20056GG-18-Z disables the PMOS pass element and enters thermal shutdown. It remains off until temperature drops by 20°C (to ~130°C), then automatically resumes regulation - a latched hysteresis cycle preventing thermal runaway.
Is MP20056GG-18-Z RoHS-compliant and halogen-free?
Yes - per Monolithic Power Systems' official documentation, all MP20056 variants including MP20056GG-18-Z are lead-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU and related environmental standards.
MP20056GG-18-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 8-TFDFN 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 250 µA
- Current - Supply (Max):
- 330 µA
- PSRR:
- 65dB ~ 33dB (100Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-QFN (2x2)
MP20056GG-18-Z FAQ
1.How can I place an order for MP20056GG-18-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP20056GG-18-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 MP20056GG-18-Z reliable?
The price and inventory of MP20056GG-18-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP20056GG-18-Z is usually 5 days.
3.What payment methods are accepted for MP20056GG-18-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP20056GG-18-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP20056GG-18-Z?
MP20056GG-18-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP20056GG-18-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 MP20056GG-18-Z?
For technical support, including MP20056GG-18-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP20056GG-18-Z requirements.
6.How does Aetrix verify that MP20056GG-18-Z is sourced from the original manufacturer or authorized distributors?
All MP20056GG-18-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 MP20056GG-18-Z meets industry standards.
7.What is the process for return or replacement of MP20056GG-18-Z?
All MP20056GG-18-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP20056GG-18-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 MP20056GG-18-Z part is unused and in its original packaging.
Return procedure for MP20056GG-18-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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