My Inquiry
My Account
Monolithic Power Systems Inc. MP3427GL-P
- Part No.:
- MP3427GL-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 22-PowerVFQFN
- Datasheet:
-
MP3427GL-P.pdf
- Description:
- IC REG BOOST ADJ 17A 22QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,015
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP3427GL-P from Monolithic Power Systems is a 600kHz fixed-frequency, current-mode synchronous boost converter with 3V–8V input range, 17A switch-current limit, 10mΩ integrated low-side FET, and external compensation for transient optimization-designed for high-power portable power delivery in tablets and power banks.
For engineers reviewing the MP3427GL-P datasheet, MP3427GL-P pinout, MP3427GL-P application, or MP3427GL-P equivalent, key selection criteria include its wide-input Li-ion compatibility, programmable UVLO via EN pin, dual internal/external current-sensing configuration, and thermal shutdown at 150°C with 25°C hysteresis.
Technical Context
The MP3427GL-P implements peak-current-mode control with a 600kHz fixed switching frequency and supports both internal MOSFET-based and external resistor-based current sensing-selected by grounding or floating the MODE pin. Its error amplifier features 300 V/V gain and 160 μA/V transconductance, with COMP pin enabling full loop compensation via external RC network.
It integrates a 10mΩ N-channel low-side power switch and a dedicated SDR gate driver (5V output, 20ns rise/30ns fall) for synchronous rectification, while VDD is auto-switched between VIN and VOUT to maintain efficiency across input voltage drops. Thermal shutdown activates at 150°C and recovers at 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3V to 8V - supports single-cell to dual-cell Li-ion battery inputs without pre-regulation. |
| Switching Frequency | 600kHz ±15% - enables compact magnetics and reduces output ripple without compromising EMI profile. |
| Switch Current Limit | 17A typical - sustains >30W output power from 3.3V input, suitable for high-current portable loads. |
| Internal Power FET RDS(on) | 10mΩ - minimizes conduction loss and thermal stress during high-duty-cycle operation. |
| Feedback Reference Voltage | 1.225V ±11mV - sets precise output regulation via external resistor divider; stable over –40°C to +125°C. |
| Shutdown Current | <1μA - enables ultra-low-power standby in battery-powered systems with long shelf life. |
| Thermal Shutdown Threshold | 150°C with 25°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
MP3427GL-P is housed in a thermally enhanced 22-pin QFN package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad (PGND-connected) for efficient heat dissipation in high-power density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BST (Pin 1) | Bootstrap supply for SDR driver | Charged from OUT; provides ~5V gate drive for synchronous rectifier MOSFET; requires external BST capacitor. |
| SDR (Pin 2) | Synchronous rectifier gate driver output | Complementary 5V logic-level signal driving external N-MOSFET; improves efficiency vs. Schottky diode. |
| OUT (Pin 3) | Output voltage sampling & BST charging node | Provides feedback voltage sample and charges BST capacitor; powers VDD when VOUT > VIN. |
| EN (Pin 4) | Enable control with programmable UVLO | Active-high logic input; 1.33V turn-on threshold; sinks 4.5μA to set VIN UVLO hysteresis via resistor divider. |
| MODE (Pin 5) | Current-sensing mode select | Ground = internal sensing; floating = external RSENSE; determines peak vs. average current protection behavior. |
| SENSE (Pin 6) | External current-sense input | Connects to one end of external sense resistor; used only when MODE is floating; sets 54mV average current limit. |
| SW (Pins 7,8,19,20,21) | Power switch drain node | High-current switching node connecting to inductor and rectifier; multiple pins reduce resistance and thermal rise. |
| PGND (Pins 9,10,17,18,22) | Power ground return | Dedicated low-impedance ground path for switch current; must be connected to thermal pad for optimal thermal performance. |
| IN (Pin 11) | Main input supply | Primary DC input connection; requires local 22μF ceramic bypass; supports up to 8V continuous operation. |
| VDD (Pin 12) | Internal bias supply | Internally regulated rail; decoupled with ≥2.2μF ceramic cap; powered from IN at startup, then from OUT. |
| COMP (Pin 13) | Error amplifier output & compensation node | Connect external RC network to set loop bandwidth and phase margin; clamped at 1.8V during soft-start. |
| FB (Pin 14) | Feedback input | Monitors output via resistor divider; reference voltage = 1.225V; input bias current = –50nA (low loading). |
| SS (Pin 15) | Soft-start timing control | Charged by 7μA internal current source; controls startup frequency ramp and COMP voltage clamp to limit inrush. |
| AGND (Pin 16) | Analog ground reference | Separate ground for FB, COMP, SS, and MODE; must be tied to PGND at single point near IC for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Wide 3V–8V input range | Enables direct integration with single- or dual-cell Li-ion batteries without intermediate regulation stages. |
| 17A switch-current limit | Supports up to 30W output power from 3.3V input, meeting peak demand in portable power banks and tablets. |
| Integrated 10mΩ low-side FET | Reduces conduction losses and eliminates external high-current switch, simplifying BOM and layout. |
| Programmable UVLO via EN pin | Allows system-level brown-out protection tuning using external resistor divider-no additional supervisor IC needed. |
| External soft-start and compensation | Permits custom transient response optimization across load and line variations without redesigning IC core. |
| Thermal shutdown with 25°C hysteresis | Ensures safe recovery after overload events without requiring external thermal monitoring circuitry. |
Applications
| Tablet Power Management | Portable Power Bank |
|---|---|
|
Use Scenario: Boosting 3.7V Li-ion battery to 5V/9V USB PD output in slim tablet designs with limited board space. IC Role / Device Role / Timing Role: Primary synchronous boost controller regulating output voltage under dynamic load steps up to 4A. Use Value: 10mΩ RDS(on) and 600kHz switching enable >92% efficiency at 3A, minimizing heat buildup in sealed enclosures. |
Use Scenario: High-current step-up conversion in multi-cell power banks delivering 18W+ to USB-C devices. IC Role / Device Role / Timing Role: Core boost regulator managing 17A peak switch current during fast-charging bursts. Use Value: Dual current-sensing modes allow robust overload protection-peak limiting for short transients, average limiting for sustained loads. |
| Fuel Cell Portable Charger | POS Terminal Power Supply |
|
Use Scenario: Converting variable 2.5–6V output from miniature fuel cells to stable 5V for embedded peripherals. IC Role / Device Role / Timing Role: Wide-input boost converter maintaining regulation despite fuel cell voltage droop under load. Use Value: Programmable UVLO via EN pin adapts to fuel cell's declining voltage curve, extending usable runtime. |
Use Scenario: Providing isolated 12V rail from 5V system bus in compact retail POS terminals with thermal constraints. IC Role / Device Role / Timing Role: High-efficiency boost stage powering display backlight and communication modules. Use Value: SDR gate driver enables synchronous rectification, improving light-load efficiency critical for always-on retail hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2132B-QT | 4.5V–28V input, 12A limit, 500kHz, integrated inductor option available | Better suited for higher-input industrial rails; lacks external compensation flexibility | Select when input exceeds 8V or inductor integration is prioritized over loop tuning. |
| TPS61088RHLR | 2.7V–12V input, 10A limit, 500kHz, no external current-sense mode selection | Fixed internal sensing only; lower peak current capability limits max output power | Choose for cost-sensitive designs where 10A peak suffices and MODE pin configurability is unnecessary. |
Compared with RTQ2132B-QT and TPS61088RHLR, MP3427GL-P uniquely combines 17A current capability, 3–8V optimized input range, and dual current-sensing architecture-making it the only option supporting both high-power Li-ion boost and flexible protection schemes in space-constrained portable systems.
Availability
MP3427GL-P is available at Aetrix Electronics and suitable for tablets, power banks, fuel cell chargers, and POS terminals requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MP3427GL-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 focus on energy-efficient DC-DC conversion and motor control solutions.
The MP3427 product line targets high-power portable electronics, delivering wide-input, high-current boost conversion with integrated thermal and current protection-optimized for battery-powered systems demanding reliability and minimal external components.
FAQ
What is the maximum supported output voltage for MP3427GL-P?
The MP3427GL-P regulates output voltages from VIN up to 10V, as specified in Recommended Operating Conditions. This allows generation of standard 5V, 9V, or 12V rails from Li-ion sources. Output voltage is set via external resistor divider on FB pin using 1.225V reference; stability requires proper compensation network on COMP pin.
How does the MODE pin affect current protection behavior?
When MODE is grounded, MP3427GL-P uses internal current sensing with cycle-by-cycle peak-current limiting (17A typical). When MODE is floating, it uses external RSENSE with average-current limiting (54mV threshold), triggering hiccup mode after 1.1ms overload. Switching between modes is prohibited during operation.
Can MP3427GL-P operate without an external synchronous rectifier MOSFET?
Yes-SDR pin can be left floating, and an external Schottky diode used instead. However, efficiency drops by 3–5% at full load due to diode forward voltage. The SDR driver is designed for 5V gate drive; recommended N-MOSFETs have VGS(th) < 3V and voltage rating ≥ VOUT.
What is the purpose of the BST capacitor, and how is it sized?
The BST capacitor (typically 0.1μF ceramic) forms a charge pump with the internal bootstrap switch to generate gate drive voltage for the SDR output. It must be placed close to BST and SW pins. If VOUT is low (e.g., 5V), BST may not reach 5V; adding a Schottky diode from OUT to BST ensures reliable SDR operation.
How is UVLO hysteresis programmed using the EN pin?
EN sinks 4.5μA when VIN rises, creating voltage drop across RTOP in a resistor divider from VIN to GND. This sets rising UVLO threshold (e.g., 2.68V). When VIN falls, the sink turns off, producing hysteresis (250mV typical) determined by RTOP alone. RBOT sets EN bias level but does not affect hysteresis magnitude.
Is MP3427GL-P qualified for automotive applications?
No-MP3427GL-P is rated for industrial temperature range (–40°C to +125°C junction), but lacks AEC-Q100 qualification, automotive-grade screening, or extended reliability testing. It is intended for consumer and industrial portable power, not automotive ECUs or infotainment systems.
What layout practices are critical for thermal performance?
Maximize copper area connected to the exposed thermal pad (Pin 22) and tie it directly to PGND plane. Use ≥6 thermal vias (0.3mm diameter) under the pad. Keep high-current paths (IN→SW→inductor, SW→rectifier→OUT) short and wide. Separate AGND and PGND traces, joining only at single point near IC.
MP3427GL-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 22-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 8V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- 10V
- Current - Output:
- 17A (Switch)
- Frequency - Switching:
- 450kHz ~ 690kHz
- Synchronous Rectifier:
- Both
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 22-QFN (3x4)
MP3427GL-P FAQ
1.How can I place an order for MP3427GL-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3427GL-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 MP3427GL-P reliable?
The price and inventory of MP3427GL-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3427GL-P is usually 5 days.
3.What payment methods are accepted for MP3427GL-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3427GL-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3427GL-P?
MP3427GL-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3427GL-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 MP3427GL-P?
For technical support, including MP3427GL-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3427GL-P requirements.
6.How does Aetrix verify that MP3427GL-P is sourced from the original manufacturer or authorized distributors?
All MP3427GL-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 MP3427GL-P meets industry standards.
7.What is the process for return or replacement of MP3427GL-P?
All MP3427GL-P units undergo pre-shipment inspection (PSI). If there is an issue with MP3427GL-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 MP3427GL-P part is unused and in its original packaging.
Return procedure for MP3427GL-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP3427GL-P Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
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…
