My Inquiry
My Account
Monolithic Power Systems Inc. MPM3822CGRH-Z
- Part No.:
- MPM3822CGRH-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 18-PowerLFQFN Module
- Datasheet:
-
MPM3822CGRH-Z.pdf
- Description:
- DC DC CONVERTER 0.6-6V
- Quantity:
- Payment:
- Shipping:
Inventory:4,023
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPM3822CGRH-Z from Monolithic Power Systems is a synchronous step-down power module with integrated inductor, delivering 2A continuous output current across a 2.75V–6V input range and regulating output down to 0.6V. It operates in forced CCM with <10mV output ripple using only one output capacitor, features EN/PG pins for sequencing, and targets optical modules, FPGA/ASIC core rails, and space-constrained portable systems.
For engineers reviewing the MPM3822CGRH-Z datasheet, MPM3822CGRH-Z pinout, MPM3822CGRH-Z application, or MPM3822CGRH-Z equivalent, key selection criteria include ultra-low noise performance (<10 mV ripple), QFN-18 (2.5×3.5×1.6 mm) footprint constraints, constant-on-time control for fast transient response, and integrated thermal/over-current protection with hiccup-mode short-circuit recovery.
Technical Context
The MPM3822CGRH-Z uses constant-on-time (COT) control with input voltage feed-forward to maintain stable switching frequency (~1.15 MHz) across input and output voltage variations. Its forced continuous conduction mode eliminates mode transitions, ensuring consistent low-noise operation and tight load regulation even at light loads.
It integrates a 1 μH inductor and supports full protection: cycle-by-cycle over-current detection (5.6 A peak / 1.5 A valley), thermal shutdown at 160°C with 30°C hysteresis, and hiccup-mode short-circuit recovery. The PG pin provides open-drain power-good indication with ±10% FB window and internal 440 kΩ pull-up to IN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.75 V to 6 V - supports single-cell Li-ion, USB PD, and 3.3 V/5 V intermediate rails without external LDO pre-regulation. |
| Output Current | 2 A continuous - sufficient for FPGA I/O banks, ASIC cores, or dual-rail optical transceivers without derating at +85°C ambient. |
| Output Ripple | <10 mV peak-to-peak - achieved with single 22 μF ceramic output capacitor, enabling direct replacement of low-noise LDOs in sensitive analog/digital mixed-signal rails. |
| Switching Frequency | 1.15 MHz typical - allows compact external components and avoids AM radio band; fixed by COT architecture with minimal loop compensation. |
| Feedback Voltage | 600 mV ±9 mV - sets precise 0.6 V reference for adjustable output; enables common resistor-divider configurations (e.g., 200 kΩ/200 kΩ for 1.2 V). |
| Thermal Shutdown | 160°C with 30°C hysteresis - protects against sustained overload or poor PCB copper; resumes operation only after die cools below 130°C. |
| Power Good Threshold | ±10% of FB voltage - ensures reliable system power sequencing; PG asserts high only when output is within regulation tolerance, not during soft-start ramp. |
Pinout & Package
MPM3822CGRH-Z is housed in an ultra-small QFN-18 package measuring 2.5 mm × 3.5 mm × 1.6 mm with exposed thermal pad (PGND-connected). The package supports high-density layout and efficient heat dissipation via bottom-side thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 AGND | Analog ground reference | Separate low-noise ground for feedback and control circuitry; must be connected to quiet ground plane, isolated from power ground loops. |
| 2 FB | Output voltage feedback node | High-impedance (10 nA) input sensing divider output; determines regulated VOUT = 0.6 V × (1 + R1/R2); requires local 0805 resistor placement. |
| 3 OUT_S | Output voltage sense point | Remote sensing input for improved load regulation; connects directly to load-side VOUT to compensate for PCB trace IR drop. |
| 4 EN | Enable control input | Active-high logic input (1.2 V threshold); internal 1 MΩ pulldown allows floating-disable; supports multi-rail sequencing with RC delay networks. |
| 5–7, 15 SW | Switch node | High-frequency switching output driving integrated inductor; requires minimum copper area and short traces to reduce EMI and switching losses. |
| 8–10 OUT | Main power output | Primary DC output terminal; paralleled pins reduce current density and thermal resistance; connects to output capacitor and load. |
| 11 NC | No connection | Internally unconnected; may be left floating or tied to GND per layout convenience-no electrical impact. |
| 12 PG | Power good indicator | Open-drain output with internal 440 kΩ pull-up to IN; asserts high only when FB is within ±10% of 600 mV, enabling safe processor reset timing. |
| 13–14 IN | Input supply | Primary VIN connection for control circuitry and high-side switch; requires low-ESR ceramic input capacitor placed adjacent to pins 13/14 and PGND. |
| 16 PGND | Power ground | High-current return path for inductor and switches; must be solidly connected to thermal pad and input/output capacitors' ground planes. |
| 17–18 DNC | Do not connect | Unused terminals; must remain floating-no grounding or routing permitted to avoid parasitic coupling or latch-up risk. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low EMI emission | Complies with EN55022 Class B radiated emissions without added shielding or ferrites-enables use in optical modules and medical edge devices. |
| Integrated 1 μH inductor | Eliminates external magnetics, reduces BOM count to just four components (FB resistors, CIN, COUT), and guarantees consistent DCR/inductance across temperature and volume production. |
| Forced CCM operation | Maintains continuous inductor current across full 0–2 A load range, minimizing output voltage deviation during load transients and improving PSRR above 100 kHz. |
| Hiccup-mode short-circuit protection | Enters auto-retry cycle (soft-start → fault detection → shutdown) upon persistent short, limiting average power dissipation and preventing thermal runaway. |
| 100% duty cycle capability | Supports dropout operation down to VIN − VOUT ≈ 130 mV (RDR = 130 mΩ), enabling stable 3.3 V output from 3.43 V input-critical for battery-powered systems near end-of-discharge. |
Applications
| Optical Transceiver Power | FPGA Core Rail |
|---|---|
|
Use Scenario: Powering 10G/25G SFP28 modules where EMI-sensitive laser drivers and TIAs require clean, low-ripple bias rails. IC Role / Device Role / Timing Role: Primary DC-DC converter supplying 1.2 V or 1.8 V to analog front-end and digital logic sections. Use Value: <10 mV ripple eliminates need for post-regulation LDOs, reducing board area and thermal load while meeting GR-468 reliability requirements. |
Use Scenario: Delivering configurable core voltage (0.6–1.2 V) to Xilinx Artix-7 or Intel Cyclone V FPGA banks under dynamic load conditions. IC Role / Device Role / Timing Role: High-efficiency, fast-transient point-of-load regulator synchronized to FPGA configuration sequence via EN/PG signals. Use Value: COT control achieves <100 mV load-step deviation (0→2 A @ 1 A/μs), maintaining timing margin for 200+ MHz clock domains without external compensation. |
| Portable SSD Power | Space-Constrained IoT Node |
|
Use Scenario: Generating 3.3 V VCCQ rail for NVMe SSD controllers and NAND flash in M.2 2230 form factor with strict height limits. IC Role / Device Role / Timing Role: Compact, thermally robust DC-DC stage replacing discrete buck + inductor solutions. Use Value: QFN-18 (1.6 mm height) fits beneath standard M.2 shields; 82% efficiency at 2 A/3.3 V minimizes thermal throttling during sustained write bursts. |
Use Scenario: Powering BLE/Wi-Fi SoCs (e.g., Nordic nRF52840, ESP32-WROOM) in wearable sensors where PCB real estate is ≤100 mm². IC Role / Device Role / Timing Role: Single-component solution for main 1.8 V or 3.3 V system rail with integrated sequencing and fault reporting. Use Value: Only four external parts required; PG signal enables firmware-controlled brown-out detection and graceful shutdown before battery depletion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3683-10 | Higher 3 A rating, 4.5–18 V input, larger QFN-21 (3×4 mm) package, no PG pin | Better suited for industrial 12 V input systems; lacks power-good signaling for tight sequencing control | Select when input exceeds 6 V or >2 A continuous load is needed; avoid when PG-driven reset coordination is mandatory. |
| TPS82084 | TI's 3 A module, 2.5–6 V input, 1.8×2.3 mm MicroSiP, integrated compensation, no EN/PG | Smaller footprint but no enable or power-good; lower max output current (2.5 A) and higher quiescent current (17 μA vs. 0.5 mA) | Prefer for ultra-dense consumer wearables where size dominates; reject when system-level power sequencing or fault monitoring is required. |
Compared with MPM3822CGRH-Z, the MPM3683-10 trades PG/EN functionality for higher input voltage and current headroom, while the TPS82084 sacrifices control interface and thermal robustness for minimal footprint-making MPM3822CGRH-Z optimal for noise-sensitive, sequenced, space-constrained 2 A applications.
Availability
MPM3822CGRH-Z is available at Aetrix Electronics and suitable for FPGA/ASIC power delivery, optical transceiver biasing, and portable SSD applications requiring stable component supply, full lifecycle support, and RoHS-compliant packaging.
Supply support for MPM3822CGRH-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 power management ICs and modules, with design centers in the US, China, and Taiwan.
The MPM38xx series targets ultra-compact, low-noise DC-DC conversion for next-generation optical, computing, and portable electronics-emphasizing integration, EMI compliance, and ease of layout over traditional discrete buck designs.
FAQ
What is the minimum output capacitance required for stable operation?
The MPM3822CGRH-Z requires ≥10 μF ceramic output capacitance for stability across all operating conditions, with 22 μF recommended for full 2 A load and <10 mV ripple. Using <10 μF risks loop instability and excessive overshoot during load transients, as verified in the EVM3822C-RH-00A reference design with X5R/X7R dielectrics.
Can OUT_S be left unconnected if remote sensing is not needed?
Yes, OUT_S may be left unconnected or tied directly to the OUT pin when remote sensing is unnecessary. The device defaults to local sensing mode, maintaining ±0.5% load regulation up to 2 A with proper PCB layout; connecting OUT_S only improves regulation accuracy under high-current PCB trace impedance.
Does the EN pin have an internal pull-down resistor?
Yes, the EN pin includes a factory-trimmed 1 MΩ internal pull-down resistor. This allows the device to remain disabled when EN is left floating, simplifying default-off behavior in unpowered states and eliminating the need for an external pull-down in most applications.
How does the hiccup-mode short-circuit protection behave during sustained fault?
Upon detecting consecutive current-limit events for 100 μs, the MPM3822CGRH-Z disables switching, discharges the soft-start capacitor, waits ~100 ms, then attempts automatic restart. This cycle repeats until the short is removed, limiting average power dissipation to <150 mW and preventing thermal damage to the integrated inductor or MOSFETs.
Is the PG pin compatible with 1.8 V logic systems?
Yes-the PG pin is open-drain with internal 440 kΩ pull-up to IN, so its high-level voltage equals VIN (e.g., 3.3 V or 5 V). To interface with 1.8 V logic, add an external level-shifter or pull PG to 1.8 V via a 10 kΩ resistor; the sink capability (≤0.4 V at 1 mA) ensures clean low-state compatibility.
What is the maximum allowable input voltage for continuous operation?
The absolute maximum input voltage is 6.5 V for <10 ns pulses, but the recommended continuous operating range is strictly 2.75 V to 6 V per datasheet specifications. Exceeding 6 V-even briefly-risks permanent damage to the internal high-side FET, as confirmed by MPS absolute maximum ratings table and thermal derating curves.
Does the integrated inductor support automotive temperature range?
No-the MPM3822CGRH-Z is rated for –40°C to +150°C junction temperature but is not AEC-Q200 qualified. Its integrated inductor uses standard commercial-grade magnetic material; for automotive applications, consider the pin-compatible AEC-Q200 qualified MPM3822CGRH-AZ variant instead.
MPM3822CGRH-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 18-PowerLFQFN Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.75V
- Voltage - Input (Max):
- 6V
- Voltage - Output 1:
- 0.6 ~ 6V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 2A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OCP, SCP, UVLO
- Operating Temperature:
- -40°C ~ 150°C
- Efficiency:
- 82%
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-QFN (2.5x3.5)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3822CGRH-Z FAQ
1.How can I place an order for MPM3822CGRH-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3822CGRH-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 MPM3822CGRH-Z reliable?
The price and inventory of MPM3822CGRH-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM3822CGRH-Z is usually 5 days.
3.What payment methods are accepted for MPM3822CGRH-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3822CGRH-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3822CGRH-Z?
MPM3822CGRH-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3822CGRH-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 MPM3822CGRH-Z?
For technical support, including MPM3822CGRH-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3822CGRH-Z requirements.
6.How does Aetrix verify that MPM3822CGRH-Z is sourced from the original manufacturer or authorized distributors?
All MPM3822CGRH-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 MPM3822CGRH-Z meets industry standards.
7.What is the process for return or replacement of MPM3822CGRH-Z?
All MPM3822CGRH-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3822CGRH-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 MPM3822CGRH-Z part is unused and in its original packaging.
Return procedure for MPM3822CGRH-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPM3822CGRH-Z Tags
-
1S4E_0505S1.5U
GAPTEC Electronic
-
TPS631000DRLR
Texas Instruments
-
XCL209F083DR
Torex Semiconductor Ltd
-
SC202AMLTRT
Semtech Corporation
-
NME1S0505SC
Murata Power Solutions Inc.
-
XCL101A501ER-G
Torex Semiconductor Ltd
-
RFM-0505S
Recom Power
-
TEA 1-0505E
Traco Power
-
MIC33153YHJ-TR
Microchip Technology
-
TEA 1-0505
Traco Power
-
TPSM863252RDXR
Texas Instruments
-
RFB-0505S
Recom Power
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
