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Monolithic Power Systems Inc. MPM3806GLE-18-AEC1-Z
- Part No.:
- MPM3806GLE-18-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3806GLE-18-AEC1-Z.pdf
- Description:
- 5.5V, 1A, SYNCHRONOUS STEP-DOWN
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPM3806GLE-18-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, fully integrated synchronous step-down power module with built-in inductor and MOSFETs, delivering 1.8V fixed output at up to 1A continuous current from a 2.5V–5.5V input. It features constant-on-time (COT) control, 2.4MHz switching frequency, 1% FB accuracy, and operates across –40°C to +150°C junction temperature for automotive ADAS sensor rails.
For engineers reviewing the MPM3806GLE-18-AEC1-Z datasheet, MPM3806GLE-18-AEC1-Z pinout, MPM3806GLE-18-AEC1-Z application, or MPM3806GLE-18-AEC1-Z equivalent, key selection criteria include its wettable-flank QFN-15 package, integrated 75mΩ/45mΩ MOSFETs, PG signal with 90% VFB threshold, 21µA sleep-mode IQ, and AEC-Q100 qualification for functional safety-critical subsystems.
Technical Context
The MPM3806GLE-18-AEC1-Z implements VIN feed-forward constant-on-time (COT) control with a fixed 80ns minimum off-time to ensure stability during load transients and prevent inductor current runaway. Its internal 0.6V reference compares against FB voltage-floating in fixed-output mode-to regulate 1.8V ±1.8% over temperature and line.
It integrates a 470nH inductor (typ), 75mΩ high-side and 45mΩ low-side MOSFETs, and supports 100% duty cycle for LDO-like operation near dropout. Protection includes valley/peak current limiting (0.4–2.5A), thermal shutdown at 170°C, hiccup-mode OVP/SCP, and zero-current detection for DCM light-load operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±1.8% (1.764V–1.836V) over –40°C to +150°C TJ - enables direct powering of 1.8V I/O domains without external feedback resistors. |
| Max Output Current | 1A continuous - sufficient for image sensors, radar SoCs, and microcontrollers in compact automotive modules. |
| Input Voltage Range | 2.5V to 5.5V - compatible with 3.3V and 5V automotive supply rails, including post-LDO battery inputs. |
| Switching Frequency | 2.4MHz (typ) - allows use of small external capacitors and reduces EMI fundamental below sensitive AM/FM bands. |
| Quiescent Current | 21µA in sleep mode - extends battery runtime in always-on ADAS cameras and V2X telematics during vehicle sleep states. |
| Thermal Rating | AEC-Q100 Grade 1 (–40°C to +125°C ambient / –40°C to +150°C junction) - validated for under-hood and cabin-mounted automotive electronics. |
| Package | QFN-15 (3mm × 4mm × 1.6mm) with wettable flanks - supports automated optical inspection (AOI) and improves solder joint reliability in vibration-prone environments. |
Pinout & Package
MPM3806GLE-18-AEC1-Z uses a 15-pin QFN-15 (3mm × 4mm × 1.6mm) package with exposed thermal pad and wettable flank edges for enhanced manufacturability and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback reference input | Floating in fixed-output mode; internal resistor divider sets 1.8V regulation - eliminates external resistors and layout sensitivity. |
| 2 PG | Open-drain power-good indicator | Pulled high when VOUT ≥ 90% of 1.8V (≥1.62V); used for system power sequencing and fault monitoring in ADAS ECUs. |
| 3 VIN | Main input supply | Accepts 2.5V–5.5V; requires local 10µF ceramic decoupling - supports wide-range battery and regulator inputs. |
| 4–6 SW | Switch node connection | Internally tied to high-side MOSFET drain and integrated inductor - must be routed with minimal loop area to reduce EMI. |
| 7–9 OUT | Regulated output power | Delivers 1.8V/1A; connects directly to load with ≥22µF output capacitance - low-ESR ceramic caps recommended for transient response. |
| 10–11 GND | Power and signal ground | Low-impedance return path; requires large copper pour and multiple vias to thermal pad - critical for thermal dissipation and noise immunity. |
| 12 EN | Enable control input | Active-high logic: >0.9V enables, <0.65V disables; internal 2MΩ pull-down - simplifies power sequencing with MCU GPIO or PMIC rail control. |
| 13 SS | Soft-start timing control | Connect ≥1nF capacitor to GND to set controlled VOUT ramp rate - prevents inrush current and overshoot during cold boot. |
| 14 OUT_S | Output sense and discharge path | Senses VOUT and provides 150Ω discharge path to GND on shutdown - ensures rapid rail collapse for safe state transitions. |
| 15 DNC | No-connect terminal | Internally connected to SW; must remain unconnected and un-routed - avoids parasitic coupling and thermal stress. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power train | 75mΩ HS-FET + 45mΩ LS-FET + 470nH inductor in single QFN - eliminates discrete layout complexity and reduces BOM count by ≥7 components. |
| Advanced Asynchronous Modulation (AAM) | Enables DCM operation under light loads with 50mA ZCD threshold - maintains >85% efficiency at 1mA load for always-on camera modules. |
| Wettable flank package | Side-wettable leads enable AOI-compatible solder joint inspection - meets IPC-A-610 Class 3 requirements for automotive production. |
| Power Good (PG) with deglitching | 80µs rising/falling deglitch time and 90%/85% VFB thresholds - prevents false power-fail assertions during load transients or startup. |
| 100% duty cycle capability | Supports dropout operation down to VIN – VOUT ≤ 100mV - sustains 1.8V output even as input sags to 1.9V during cranking events. |
Applications
| Camera Modules | ADAS Sensors |
|---|---|
|
Use Scenario: Powering 1.8V image sensor I/O and ISP core logic in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 3.3V domain to stable 1.8V rail with fast transient response to pixel readout bursts. Use Value: 2.4MHz switching and COT control limit output voltage deviation to <±15mV during 100mA–1A load steps - preserves image SNR and timing integrity. |
Use Scenario: Supplying 1.8V bias to radar transceiver RF front-end and ADC reference in 77GHz ADAS modules. IC Role / Device Role / Timing Role: Low-noise, AEC-Q100-compliant DC/DC converter providing clean, sequenced power for mixed-signal sensor subsystems. Use Value: Integrated compensation and 1% FB accuracy maintain <±18mV regulation across –40°C to +125°C ambient - ensures consistent RF gain and ADC linearity. |
| Automotive Infotainment Systems | Automotive V2X |
|
Use Scenario: Generating 1.8V for display interface logic (LVDS, MIPI DSI) and audio codec I/O in head-unit systems. IC Role / Device Role / Timing Role: Compact, thermally robust power module enabling dense PCB layouts in space-constrained infotainment head units. Use Value: QFN-15 wettable flank package achieves 53°C/W θJA on 4-layer board - keeps case rise <15°C at 1A/3.3V input, avoiding thermal throttling. |
Use Scenario: Powering 1.8V V2X communication SoC baseband and GNSS receiver in roadside units and vehicle telematics. IC Role / Device Role / Timing Role: High-reliability, low-IQ regulator supporting always-on wake-up functionality and secure boot sequences. Use Value: 21µA sleep IQ and EN-controlled shutdown reduce standby power to <3µW - extends backup battery life beyond 5 years in parking-mode V2X nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS82084SILR | 1.8V fixed, 1A, 2.5V–6V VIN, 2.2MHz fSW, no PG, QFN-10 (2.5mm×2.5mm) | Lacks power-good signaling and AEC-Q100 qualification - suitable for non-safety-critical consumer-grade modules only. | Select if board space is constrained and PG sequencing is not required; verify thermal derating at 125°C ambient. |
| RT7297BZSP | 1.8V fixed, 1A, 2.7V–5.5V VIN, 1.5MHz fSW, PG, QFN-16 (3mm×3mm), AEC-Q100 Grade 2 | Lower switching frequency increases inductor size; Grade 2 rating limits use to cabin (not engine bay) applications. | Choose for cost-sensitive designs where 1.5MHz EMI profile is acceptable and ambient temperature stays ≤105°C. |
Compared with TPS82084SILR and RT7297BZSP, MPM3806GLE-18-AEC1-Z delivers superior thermal performance (150°C TJ), integrated PG with deglitching, and higher-frequency operation in a wettable-flank package-making it the only option qualified for full AEC-Q100 Grade 1 under-hood deployment.
Availability
MPM3806GLE-18-AEC1-Z is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor subsystems, and infotainment displays requiring stable component supply with AEC-Q100 traceability and long-term lifecycle support.
Supply support for MPM3806GLE-18-AEC1-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-efficiency power management ICs and modules, with design centers in the US, China, and Taiwan.
The MPM3806 product line delivers fully integrated, AEC-Q100-qualified power modules targeting space-constrained, thermally demanding automotive subsystems such as ADAS, infotainment, and V2X communications.
FAQ
What is the purpose of the OUT_S pin on the MPM3806GLE-18-AEC1-Z?
The OUT_S pin serves dual functions: it senses the regulated output voltage for internal feedback stability and provides a dedicated 150Ω resistive discharge path from VOUT to GND during shutdown. This ensures rapid rail collapse (<1ms for 22µF COUT), preventing latch-up or undefined states in downstream logic during power sequencing.
Does the MPM3806GLE-18-AEC1-Z require external compensation components?
No. The device integrates a complete compensation network-including error amplifier, ramp generator, and internal RC elements-enabling stable operation with only input and output capacitors. This eliminates tuning effort and layout sensitivity, reducing design cycle time for automotive applications.
How does the PG pin behave during startup and fault conditions?
The PG pin remains low until VOUT reaches ≥90% of 1.8V (≥1.62V), then pulls high after an 80µs deglitch delay. If VOUT drops below 85% of 1.8V (≤1.53V), PG pulls low after another 80µs delay. During overvoltage or short-circuit faults, PG asserts low within microseconds to signal system-level fault handling.
Can the MPM3806GLE-18-AEC1-Z operate with a 2.5V input and deliver 1.8V at 1A?
Yes. With its 100% duty-cycle capability and low RDS(ON) MOSFETs, the device sustains 1.8V output at full 1A load down to VIN = 1.9V. At VIN = 2.5V, efficiency exceeds 88% (per typical curves), and thermal rise remains <12°C on a 4-layer board-validating use in low-input automotive scenarios.
Is the MPM3806GLE-18-AEC1-Z pin-compatible with other MPM3806 variants?
Yes. All MPM3806 variants-including adjustable, 1.2V, and 1.8V fixed-output versions-share identical QFN-15 (3mm×4mm) pinout, footprint, and thermal pad layout. Only the FB pin configuration differs (floating vs. resistor-connected), allowing drop-in replacement in fixed-output designs.
What is the significance of the "-Z" suffix in MPM3806GLE-18-AEC1-Z?
The "-Z" suffix denotes tape-and-reel packaging per JEDEC standard J-STD-020, with 3,000 units per reel. This format is optimized for SMT assembly lines and qualifies for automated optical inspection (AOI) due to the wettable flank package-ensuring consistent placement and solder joint quality in high-volume automotive manufacturing.
How does Advanced Asynchronous Modulation (AAM) improve light-load efficiency?
AAM dynamically shifts the converter into discontinuous conduction mode (DCM) under light loads using zero-current detection (50mA threshold). This reduces switching losses and enables deep sleep with 21µA IQ, achieving >85% efficiency at 1mA load-critical for always-on ADAS camera modules during vehicle sleep cycles.
MPM3806GLE-18-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 15-PowerLFQFN Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output 1:
- 1.8V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 1A
- Power (Watts):
- 1.8 W
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- -
- Operating Temperature:
- -40°C ~ 150°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 15-QFN (3x4)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3806GLE-18-AEC1-Z FAQ
1.How can I place an order for MPM3806GLE-18-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3806GLE-18-AEC1-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 MPM3806GLE-18-AEC1-Z reliable?
The price and inventory of MPM3806GLE-18-AEC1-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM3806GLE-18-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPM3806GLE-18-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3806GLE-18-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3806GLE-18-AEC1-Z?
MPM3806GLE-18-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3806GLE-18-AEC1-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 MPM3806GLE-18-AEC1-Z?
For technical support, including MPM3806GLE-18-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3806GLE-18-AEC1-Z requirements.
6.How does Aetrix verify that MPM3806GLE-18-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPM3806GLE-18-AEC1-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 MPM3806GLE-18-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPM3806GLE-18-AEC1-Z?
All MPM3806GLE-18-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3806GLE-18-AEC1-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 MPM3806GLE-18-AEC1-Z part is unused and in its original packaging.
Return procedure for MPM3806GLE-18-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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