My Inquiry
My Account
Monolithic Power Systems Inc. MP3310NGQ-P
- Part No.:
- MP3310NGQ-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
MP3310NGQ-P.pdf
- Description:
- IC LED DRVR RGLTR PWM 1.3A 10QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,864
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP3310NGQ-P from Monolithic Power Systems is a step-up white LED driver IC with true PWM dimming, internal 0.3Ω MOSFET, 47V output capability, 1.3A current limit, and programmable switching frequency (300kHz–1.2MHz). It regulates LED current via external ISET resistor, supports up to 12-series/4-parallel WLED arrays, and is used in LCD backlighting for handheld computers and digital picture frames.
For engineers reviewing the MP3310NGQ-P datasheet, MP3310NGQ-P pinout, MP3310NGQ-P application, or MP3310NGQ-P equivalent, key selection considerations include its 4.5–25V input range, 500mV LED current sense reference, OVP threshold programmability via resistor divider, thermal shutdown at 150°C, and QFN-10 (3×3mm) package with exposed thermal pad.
Technical Context
The MP3310NGQ-P implements a fixed-frequency, peak-current-mode boost converter with integrated 0.3Ω power switch and internal 5V LDO (VCC) for gate drive and control logic. Its error amplifier compares LED current feedback against a precise 500mV reference, enabling stable current regulation across temperature and line variations.
True PWM dimming is implemented via direct EN/DIM pin control (200Hz–2kHz square wave), decoupling brightness control from analog regulation. Open-load protection triggers at 1.24V on OVP pin (±60mV tolerance), with 120mV hysteresis, while UVLO activates at 3.9V (±0.3V) with 450mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 25V - Supports wide-input industrial and portable battery-powered systems including 3S Li-ion (12.6V) and 5V rail inputs. |
| Output Voltage Capability | Up to 47V - Enables driving up to 12-series white LEDs (3.3V each) with margin for forward voltage variation and ripple. |
| LED Current Regulation | Programmable via ISET resistor (e.g., 76.8mA at RISET = 60.4kΩ) - Provides precise, temperature-stable current control using internal 500mV reference. |
| Switching Frequency | 300kHz to 1.2MHz (resistor-programmable) - Allows optimization of inductor size, efficiency, and EMI profile per application constraints. |
| Internal Power Switch RDS(on) | 0.3Ω - Minimizes conduction loss in boost stage, supporting >93% peak efficiency at typical operating points. |
| OVP Threshold Accuracy | 1.24V ±60mV - Enables reliable open-circuit detection with externally adjustable trip point via resistor divider. |
| Thermal Shutdown | 150°C - Protects die under sustained overload or poor PCB thermal design; auto-recovery after cooldown. |
Pinout & Package
MP3310NGQ-P is housed in a thermally enhanced 10-pin QFN package (3mm × 3mm, 0.5mm pitch) with exposed thermal pad (internally connected to GND). The pad must be soldered to a dedicated GND plane for optimal thermal performance (θJA = 50°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OVP | Open-load protection input | Accepts resistor-divider feedback from LED string output; triggers shutdown when voltage ≥1.24V. |
| 2 ISET | LED current programming | Connects to ground via precision resistor to set total LED current (ILED = 4605V / RISET). |
| 3 COMP | Control loop compensation | Output of internal error amplifier; requires RC network to GND for stability across load/input conditions. |
| 4 LED | LED cathode connection | Open-drain dimming switch node; sinks regulated current into LED string cathodes. |
| 5 GND | Power and signal ground | Main ground reference; exposed pad must be connected to PCB GND plane for thermal and electrical integrity. |
| 6 SW | Boost switch node | Drain of internal 0.3Ω MOSFET; connects to inductor and Schottky diode anode in boost topology. |
| 7 EN/DIM | Enable and PWM dimming input | Active-high enable; accepts 200Hz–2kHz square wave for flicker-free, high-contrast brightness control. |
| 8 VIN | Main power input | 4.5–25V supply input; requires local 10µF ceramic bypass capacitor near pin. |
| 9 VCC | Internal 5V LDO output | Supplies gate drive and internal circuitry; bypass with 1µF ceramic; tie to VIN if VIN < 5.5V. |
| 10 FSET | Frequency programming | Connect resistor to GND to set fSW: 20kΩ → ~1.2MHz, 100kΩ → ~300kHz; open → 1MHz default. |
Key Features
| Feature | Design Value |
|---|---|
| True PWM dimming | Direct EN/DIM pin control enables 0–100% duty-cycle brightness adjustment without color shift or low-end nonlinearity. |
| Adjustable OVP threshold | Resistor-divider programming allows OVP setting above nominal LED string voltage (e.g., 1.3× VOUT) for robust fault coverage. |
| Integrated 0.3Ω MOSFET | Eliminates external high-side switch, reduces BOM count and layout area, and improves efficiency over discrete solutions. |
| Programmable switching frequency | Enables trade-off between inductor size (higher fSW → smaller L) and efficiency (lower fSW → lower switching loss). |
| Thermal shutdown + UVLO | Prevents damage during startup under low-VIN or sustained overload; hysteresis ensures clean re-enable after recovery. |
Applications
| Handheld Computers & PDAs | Digital Picture Frames |
|---|---|
|
Use Scenario: Backlighting compact 4.3–7-inch TFT-LCD displays powered by single-cell or dual-cell Li-ion batteries. IC Role / Device Role / Timing Role: Step-up LED driver regulating constant current to 3–4 parallel strings of 6–8 series white LEDs. Use Value: Delivers stable luminance across 4.5–25V input range; true PWM dimming enables seamless ambient-light-adaptive brightness control. |
Use Scenario: Driving multi-string WLED arrays in wall-mounted or tabletop photo display units with variable ambient light. IC Role / Device Role / Timing Role: Primary backlight controller managing up to 12-series/4-parallel LEDs with programmable OVP for long-term reliability. Use Value: 93% peak efficiency minimizes thermal load in enclosed enclosures; 1.24V OVP threshold ensures fail-safe shutdown during LED string open-circuit events. |
| Digital Still Cameras | Small LCD Displays (POS, Instrumentation) |
|
Use Scenario: Compact flash or rear-panel LCD viewfinder backlight requiring fast-response dimming and low quiescent current. IC Role / Device Role / Timing Role: High-efficiency boost driver with 1µA shutdown current and <2µs dimming response latency from EN/DIM edge. Use Value: Enables instant-on/off and smooth brightness ramping; internal 5V LDO powers camera sensor interface logic without extra regulator. |
Use Scenario: Industrial HMI or retail POS terminals with small monochrome or color LCDs needing consistent backlight intensity over temperature. IC Role / Device Role / Timing Role: Constant-current LED driver with ±3% LED current accuracy over –20°C to +125°C junction temperature range. Use Value: Maintains display readability across extended temperature operation; QFN-10 package supports high-density PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP3312GQ-Z | Higher 60V output rating, 1.5A current limit, and integrated soft-start; no FSET pin - fixed 1.1MHz fSW. | Better suited for higher-voltage LED strings (>47V) or designs requiring controlled startup inrush limiting. | Select MP3312GQ-Z when output voltage headroom beyond 47V or guaranteed soft-start behavior is required. |
| RT8532GSP | Fixed 1.2MHz fSW, 40V OVP max, no OVP programming pin; uses external current-sense resistor instead of ISET pin. | Lacks programmable OVP and true PWM dimming - relies on analog dimming or external PWM FET control. | Choose RT8532GSP only if fixed-frequency operation and simplified OVP architecture are acceptable trade-offs. |
Compared with MP3310NGQ-P, MP3312GQ-Z offers higher voltage headroom and built-in soft-start but sacrifices frequency flexibility, while RT8532GSP simplifies design at the cost of dimming fidelity and OVP configurability - making MP3310NGQ-P optimal for adaptive backlighting where programmability and precision matter.
Availability
MP3310NGQ-P is available at Aetrix Electronics and suitable for LCD panels, digital picture frames, and handheld computers requiring stable component supply, consistent LED current regulation, and true PWM dimming capability.
Supply support for MP3310NGQ-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 power management ICs, with expertise in DC/DC conversion, LED drivers, and motor control.
The MP3310NGQ-P belongs to MPS's white LED backlight driver product line, designed specifically for compact, high-efficiency LCD backlighting in portable and space-constrained applications.
FAQ
What input voltage range does the MP3310NGQ-P support?
The MP3310NGQ-P operates from 4.5V to 25V input, accommodating common battery configurations like 3S Li-ion (12.6V max) and regulated 5V/12V rails. Below 5.5V, VCC must be tied to VIN to ensure internal circuitry remains powered.
How is LED current programmed on the MP3310NGQ-P?
LED current is set by connecting a precision resistor (RISET) between ISET (Pin 2) and GND. The relationship is ILED = 4605V / RISET - for example, 60.4kΩ yields 76.2mA. The ISET pin must never be left floating.
Can the MP3310NGQ-P drive multiple parallel LED strings?
Yes - it supports up to 4 parallel strings with up to 12 LEDs per string (total ≤48 LEDs), provided total current stays within 1.3A limit and output voltage remains ≤47V. Each string requires individual current-setting or matching.
What is the purpose of the OVP pin, and how is it configured?
The OVP pin (Pin 1) monitors LED string voltage via a resistor divider. When voltage at this pin reaches 1.24V, the IC disables the switch to prevent overvoltage damage. The threshold is set by VOVP = 1.24V × (R1 + R2)/R2.
Does the MP3310NGQ-P require external compensation components?
Yes - the COMP pin (Pin 3) requires an external RC network to ground to stabilize the current-mode control loop. Typical values are 1nF capacitor in series with 10kΩ resistor, tuned per inductor value and load conditions.
What thermal management is required for the MP3310NGQ-P?
The QFN-10 package features an exposed thermal pad that must be soldered to a solid GND copper pour. With proper layout, θJA is 50°C/W; exceeding 150°C junction temperature triggers automatic shutdown and recovery.
Is the MP3310NGQ-P RoHS-compliant and lead-free?
Yes - MP3310NGQ-P is fully RoHS-compliant and lead-free, meeting MPS's green manufacturing standards. Full compliance documentation is available on the Monolithic Power Systems website under Quality Assurance.
MP3310NGQ-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 25V
- Voltage - Output:
- 50V
- Current - Output / Channel:
- 1.3A (Switch)
- Frequency:
- 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -20°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (3x3)
MP3310NGQ-P FAQ
1.How can I place an order for MP3310NGQ-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3310NGQ-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 MP3310NGQ-P reliable?
The price and inventory of MP3310NGQ-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3310NGQ-P is usually 5 days.
3.What payment methods are accepted for MP3310NGQ-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3310NGQ-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3310NGQ-P?
MP3310NGQ-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3310NGQ-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 MP3310NGQ-P?
For technical support, including MP3310NGQ-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3310NGQ-P requirements.
6.How does Aetrix verify that MP3310NGQ-P is sourced from the original manufacturer or authorized distributors?
All MP3310NGQ-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 MP3310NGQ-P meets industry standards.
7.What is the process for return or replacement of MP3310NGQ-P?
All MP3310NGQ-P units undergo pre-shipment inspection (PSI). If there is an issue with MP3310NGQ-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 MP3310NGQ-P part is unused and in its original packaging.
Return procedure for MP3310NGQ-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP3310NGQ-P Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
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…
