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Monolithic Power Systems Inc. MP2625BGL-P
- Part No.:
- MP2625BGL-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 20-PowerTFQFN
- Datasheet:
-
MP2625BGL-P.pdf
- Description:
- IC BATT CHG LI-ION 1CELL 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,767
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Product details
Overview
MP2625BGL-P from Monolithic Power Systems is a 2A synchronous buck switching charger IC with NVDC (Narrow Voltage DC) power path management for single-cell Li-ion batteries. It integrates input current limiting (up to 2A), programmable charge current (up to 2.2A), 1.6MHz switching frequency, and five independent control loops (input current/voltage, CC/CV, thermal foldback). It enables immediate system operation with deeply discharged or missing batteries in portable tablets and smartphones.
For engineers reviewing the MP2625BGL-P datasheet, MP2625BGL-P pinout, MP2625BGL-P application, or MP2625BGL-P equivalent, this device supports USB2.0/3.0-compliant input current programming, battery temperature monitoring via NTC, integrated ideal diode path from battery to SYS, and system voltage regulation from 3.45V to 4.4V - all critical for compact, thermally constrained portable power designs.
Technical Context
The MP2625BGL-P implements a fixed-frequency (1.6MHz) synchronous buck converter with integrated high-side (130mΩ) and low-side (100mΩ) NMOS switches, enabling efficient step-down from 4–10V input to regulated SYS output. Its NVDC architecture decouples system power and battery charging through independent regulation of VSYS and VBATT, using a dedicated 40mΩ BATT-to-SYS MOSFET for supplemental power delivery during input overload or removal.
Five closed-loop controls operate concurrently: average input current limit (programmable via ILIM resistor or M0/M1 logic pins), input voltage clamp (via VLIM resistor divider), constant-current/constant-voltage battery charge, terminal battery voltage regulation (4.2V ±32mV), and on-die thermal foldback (120°C activation, 150°C shutdown). All loops share a unified error amplifier structure with priority-based arbitration favoring system load over charging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.0V to 10.0V - Supports dual-input USB (5V) and high-power DC adapters (9V/12V) without external LDO or protection circuitry. |
| Max Charge Current | 2.2A - Programmable via ISET resistor; enables full-rate charging of 2000–3000mAh Li-ion cells in ≤2.5 hours under sufficient input power. |
| Switching Frequency | 1.6MHz (±200kHz) - Enables use of small 1.2µH inductors and 10µF ceramic output capacitors, reducing solution footprint by >30% vs. 500kHz chargers. |
| Power Path Control | NVDC architecture with 40mΩ BATT-to-SYS MOSFET - Supplies system load directly from battery when input drops below VBATT–65mV, eliminating brownout during adapter disconnect. |
| Battery Voltage Accuracy | ±32mV at 4.2V - Ensures precise CV termination to maximize cycle life and prevent overcharge in consumer-grade Li-ion cells. |
| Thermal Regulation | 120°C foldback, 150°C shutdown - Dynamically reduces charge current before die temperature exceeds safe operating limits, preserving reliability in sealed enclosures. |
| NTC Monitoring | Supports NCP18XH103F thermistor - Detects battery temperature faults across –20°C to +70°C range with 35mV low-temp and 70mV high-temp hysteresis for stable thermal cutoff. |
Pinout & Package
MP2625BGL-P is housed in a thermally enhanced QFN-20 package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad (EP) connected to PGND for optimal heat dissipation in high-current charging applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 BST | Bootstrap supply for high-side gate driver | Connects external 0.1µF capacitor between BST and SW to generate floating VGS ≥10V for reliable HS NMOS turn-on. |
| 3 IN | Main power input | Accepts 4–10V from USB or DC adapter; includes UVLO (3.8V rising) and input voltage clamp control via VLIM. |
| 2,4 SW | Switch node | Drives external 1.2µH inductor; peak current limited to 4A to protect internal MOSFETs during transient overload. |
| 5 PGND | Power ground return | Low-impedance path for inductor current and switch conduction losses; must be tied to EP for thermal performance. |
| 6 EN | Enable control | Active-low logic input; <0.4V disables all functions including bias LDOs, reducing quiescent current to 3µA. |
| 7,8 M0/M1 | Input current limit mode select | Logic pair sets USB2.0 (450mA), USB3.0 (825mA), programmable (via ILIM), or default (2A) modes. |
| 9 CHGOK | Charge status indicator | Open-drain output pulled low during active charging; high-impedance when fully charged (requires external pull-up). |
| 10 ACOK | Input power presence indicator | Open-drain output pulled low when valid input (IN > UVLO + 280mV) is detected; used for system power-source awareness. |
| 12 SYSFB | System output voltage feedback | Resistor divider from SYS to AGND programs VSYS from 4.08V to 4.4V; floating = auto-regulation per VBATT state. |
| 13 SYS | Regulated system output | Supplies system load and battery charger; voltage dynamically adjusted to minimize loss (e.g., VBATT+0.2V when VBATT >3.4V). |
| 14 BATT | Battery positive terminal | Connects to single-cell Li-ion anode; internal 40mΩ MOSFET enables bidirectional power flow to SYS during input shortage. |
| 15 ISET | Charge current programming | Resistor to AGND sets ICC: 1.05kΩ = 2.0A, 1.53kΩ = 1.4A, 4.6kΩ = 0.45A; open = disable charging. |
| 16 NTC | Battery temperature sensing | Interface to NTC thermistor inside battery pack; monitors voltage ratio against VCC to detect out-of-range temperatures. |
| 17 ILIM | Adapter input current limit programming | Resistor to AGND sets IIN: R = 23kΩ → 2.0A; 1.14V reference ensures ±5% accuracy across temperature. |
| 18 TMR | Charging safety timer | Capacitor to AGND sets trickle/CC timeout: 0.1µF = 43min trickle / 6.2hr CC; short to AGND disables timer. |
| 19 VLIM | Input voltage clamp reference | Resistor divider from IN to AGND sets VIN clamp threshold; 1.52V internal reference enables adapter overvoltage protection. |
| 20 VCC | Internal LDO output | 4.5V ±0.1V, 40mA capable supply for bias circuits and external pull-ups; includes UVLO (3.35V rising). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power switches | Eliminates need for external MOSFETs, blocking diodes, or current-sense resistors - reduces BOM count by ≥7 components and PCB area by 25mm². |
| Smart power path arbitration | Guarantees system load priority: when input current limit is reached, remaining current charges battery; if load demand exceeds input capacity, battery supplements SYS via 40mΩ path. |
| Five concurrent control loops | Enables simultaneous regulation of input current, input voltage, battery CC/CV, terminal voltage, and die temperature - no firmware or external supervision required. |
| USB-compliant input programming | Hardware-selectable 450mA (USB2.0) and 825mA (USB3.0) limits via M0/M1 pins - eliminates software configuration and ensures compliance without host intervention. |
| Programmable system voltage | SYSFB pin allows user-defined VSYS (4.08–4.4V) or auto-adaptive regulation (3.45–4.5V) based on battery state - optimizes efficiency and runtime across discharge curve. |
Applications
| Smartphone Power Management | Tablet PC Charging System |
|---|---|
Use Scenario: Dual-input (USB-C and barrel jack) charging in slim-profile smartphones with 3000mAh battery and always-on display. IC Role / Device Role / Timing Role: Primary switching charger with NVDC power path, managing real-time allocation between system rail (VDD_IO, AP core) and Li-ion cell. Use Value: Enables instant boot with dead battery via 3.6V SYS override, while maintaining USB2.0 compliance and thermal safety up to 125°C junction. | Use Scenario: High-current charging (2A) in 10-inch Android tablets with dual-display interface and 6000mAh battery. IC Role / Device Role / Timing Role: System power supervisor and battery charger, coordinating 1.6MHz buck conversion, battery temperature monitoring, and adaptive SYS voltage scaling. Use Value: Reduces charging time by 22% vs. linear chargers and prevents adapter brownout during CPU/GPU burst loads using BATT-to-SYS supplemental power. |
| E-Book Reader Battery System | Portable GPS Navigation Unit |
Use Scenario: Low-quiescent, long-runtime e-reader with 2000mAh Li-ion and solar-assisted USB charging. IC Role / Device Role / Timing Role: Energy-efficient charger with trickle mode (3.0V threshold), 43-minute safety timer, and 3µA shutdown current. Use Value: Extends shelf life to >12 months with deep-discharge recovery and prevents false EOC due to low-temp NTC drift via 35mV hysteresis. | Use Scenario: Automotive-grade portable GPS with cold-start capability (–20°C) and intermittent 12V car adapter input. IC Role / Device Role / Timing Role: Robust charging controller with NTC-based thermal cutoff, input voltage clamp (to protect against load dump), and 150°C thermal shutdown. Use Value: Maintains GPS uptime during engine cranking by drawing supplemental power from battery via ideal diode path when 12V input dips below 9.5V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-cell Li-ion switching charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ25618RTWR | Lower max charge current (1.5A), integrated OTG boost, no input voltage clamp loop, 1.2MHz switching. | Lacks NVDC power path arbitration; uses separate BATFET control instead of integrated BATT-to-SYS MOSFET. | Select for cost-sensitive designs requiring reverse boost (OTG) but not demanding 2A charging or adaptive input voltage clamping. |
| IP2328 | Higher input voltage (13.5V), 3A charge current, no NTC monitoring, requires external sense resistor for input current limit. | Missing integrated power path MOSFET - needs external ideal diode for BATT-to-SYS backup; no SYSFB programmability. | Select when input voltage exceeds 10V or 3A charging is mandatory, accepting added BOM complexity and reduced thermal safety margin. |
Compared with BQ25618RTWR and IP2328, MP2625BGL-P uniquely combines 2A charging, five-loop precision regulation, integrated NVDC power path with 40mΩ BATT-to-SYS FET, and programmable input voltage clamping - making it optimal for thermally constrained, dual-input portable devices requiring guaranteed system uptime.
Availability
MP2625BGL-P is available at Aetrix Electronics and suitable for smartphone power management, tablet PC charging systems, e-book reader battery subsystems, and portable GPS navigation units requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle support.
Supply support for MP2625BGL-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 mixed-signal ICs for power management, motor drive, and automotive applications.
The MP2625BGL-P belongs to MPS's single-cell Li-ion switching charger product line, engineered specifically for space-constrained portable electronics requiring simultaneous system power delivery and battery charging with minimal external components.
FAQ
What is the maximum supported input voltage for MP2625BGL-P?
The absolute maximum input voltage (IN pin) is +20V, but the recommended operating range is 4.0V to 10.0V. Operation above 10V risks exceeding the 2.6W thermal limit in QFN-20 package unless board-level thermal design is optimized. The input voltage clamp function (via VLIM pin) allows safe operation with higher-voltage adapters by limiting VIN to user-defined thresholds.
How does MP2625BGL-P handle battery charging when the system load exceeds input power capacity?
When system load demand surpasses available input power, MP2625BGL-P activates its smart power path: it first reduces charge current to zero, then turns on the internal 40mΩ BATT-to-SYS MOSFET to supplement power from the battery. This maintains stable SYS voltage without brownout, even during adapter removal or severe input current limiting - a key advantage over chargers lacking integrated ideal diode functionality.
Can MP2625BGL-P charge a deeply discharged battery (<2.6V)?
Yes - MP2625BGL-P initiates trickle charge when VBATT falls below 3.0V (typical), delivering 10% of programmed ICC until voltage rises to 3.0V. If the battery remains below 2.4V (UVLO falling threshold), charging is inhibited to prevent damage. A 43-minute trickle timer (configurable via TMR pin) terminates charging if voltage fails to recover, indicated by blinking CHGOK.
What is the purpose of the SYSFB pin, and how does it affect system voltage regulation?
SYSFB sets the target SYS output voltage: floating enables auto-regulation (3.6V when VBATT ≤3.4V; VBATT+0.2V when VBATT >3.4V), while a resistor divider programs fixed VSYS from 4.08V to 4.4V. This flexibility allows optimization for different system rails - e.g., 4.2V for USB-powered peripherals or 3.6V for low-power microcontrollers - without changing hardware.
Does MP2625BGL-P support USB On-The-Go (OTG) functionality?
No - MP2625BGL-P is a unidirectional charger with no integrated boost converter or OTG enable pin. It supports only input-to-battery and input-to-system power paths. For OTG capability, designers must add an external boost IC (e.g., MPQ4272) powered from SYS or BATT, coordinated via GPIO control outside the MP2625BGL-P.
How is thermal protection implemented in MP2625BGL-P?
MP2625BGL-P features two-tier thermal protection: analog thermal foldback begins reducing charge current at 120°C die temperature to maintain safe operation, and digital thermal shutdown cuts all power stages at 150°C. Both thresholds are factory-trimmed and do not require external components. The exposed thermal pad (EP) must be soldered to a ≥100mm² copper pour for effective heat transfer.
What is the minimum recommended PCB layout practice for the BST pin?
A 0.1µF X7R ceramic capacitor must be placed within 2mm of the BST and SW pins, with direct low-inductance traces to both nodes. This minimizes bootstrap loop inductance, ensuring clean high-side gate drive and preventing shoot-through during 1.6MHz switching. Avoid routing BST near noisy signals (e.g., SW, IN) or sharing vias with power planes.
MP2625BGL-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 20-PowerTFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current, Timer
- Fault Protection:
- Over Temperature
- Charge Current - Max:
- 2A
- Battery Pack Voltage:
- 4.2V
- Voltage - Supply (Max):
- 10V
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (3x4)
MP2625BGL-P FAQ
1.How can I place an order for MP2625BGL-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2625BGL-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 MP2625BGL-P reliable?
The price and inventory of MP2625BGL-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2625BGL-P is usually 5 days.
3.What payment methods are accepted for MP2625BGL-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2625BGL-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2625BGL-P?
MP2625BGL-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2625BGL-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 MP2625BGL-P?
For technical support, including MP2625BGL-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2625BGL-P requirements.
6.How does Aetrix verify that MP2625BGL-P is sourced from the original manufacturer or authorized distributors?
All MP2625BGL-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 MP2625BGL-P meets industry standards.
7.What is the process for return or replacement of MP2625BGL-P?
All MP2625BGL-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2625BGL-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 MP2625BGL-P part is unused and in its original packaging.
Return procedure for MP2625BGL-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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