My Inquiry
My Account
Monolithic Power Systems Inc. MP2626GR-Z
- Part No.:
- MP2626GR-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 24-PowerVFQFN
- Datasheet:
-
MP2626GR-Z.pdf
- Description:
- USB-COMPLIANT SINGLE CELL LI-ION
- Quantity:
- Payment:
- Shipping:
Inventory:4,132
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP2626GR-Z from Monolithic Power Systems is a USB-compliant, bi-directional switch-mode Li-ion battery charger and USB-OTG boost regulator for single-cell 4.2V/4.35V batteries. It delivers up to 2A programmable charge current, supports input-current limiting (400–2200mA), integrates thermal regulation at 120°C, and provides 91% peak efficiency in 5V boost mode at 1A - used in portable power banks and smartphone auxiliary charging systems.
For engineers reviewing the MP2626GR-Z datasheet, MP2626GR-Z pinout, MP2626GR-Z application, or MP2626GR-Z equivalent, key selection criteria include its dual-mode operation (charge/boost), programmable battery full voltage (4.2V/4.35V), integrated NTC thermistor interface, input-voltage regulation loop, and QFN-24 (4mm×4mm) package with exposed thermal pad.
Technical Context
The MP2626GR-Z implements a synchronous buck-boost architecture with independent control loops for input current, input voltage, battery charge current, battery voltage, and die temperature. Its MODE pin selects between charge mode (EN-controlled, three-phase TC/CC/CV profile) and boost mode (VBATT-to-5V conversion with output current limit and short-circuit protection).
In charge mode, it enforces USB-compliant input current limits via ILIM resistor programming and regulates VIN using the REG feedback pin; in boost mode, it uses OLIM to set output current limit and FB for 5V output regulation, with built-in over-voltage (6.2V) and weak-battery (2.5V) shutdown thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Charge Voltage | 4.2V or 4.35V selectable via VB pin; ±0.5% accuracy at 25°C ensures safe Li-ion termination. |
| Max Charge Current | 2A programmable via ISET resistor; enables fast charging while maintaining thermal safety. |
| Input Voltage Range | 4.5V–6V operating; 20V absolute max protects against adapter transients. |
| Boost Efficiency | 91% at 1A output; minimizes battery drain during USB peripheral powering. |
| Thermal Regulation | 120°C die temperature limit with foldback; prevents thermal runaway without full shutdown. |
| Switching Frequency | 600kHz or 1.2MHz selectable via FREQ pin; balances EMI and inductor size. |
| NTC Interface | Dedicated NTC pin with 65.3–36% resistance threshold range; supports battery temperature monitoring per JEITA. |
Pinout & Package
MP2626GR-Z is housed in a thermally enhanced QFN-24 package (4mm × 4mm, 0.5mm pitch) with exposed PGND pad for efficient heat dissipation. Pin 19 (PGND) and the exposed pad must be soldered to a common ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FREQ | Frequency select | GND = 600kHz; float/high = 1.2MHz - adjusts switching frequency for EMI or efficiency trade-offs. |
| 4 ILIM | Input current limit set | Resistor to GND programs 400–2200mA input current limit for USB compliance. |
| 11 ISET | Charge current programming | Resistor to GND sets CC charge current from 900mA to 2A with ±10% tolerance. |
| 12 OLIM | Boost output current limit | Resistor to GND configures boost current limit (e.g., 1.12A typical with 100kΩ). |
| 14 VB | Battery full voltage select | Floating/high = 4.2V; GND = 4.35V - selects Li-ion/Li-Po termination voltage. |
| 23 MODE | Mode control | High = boost mode (VBATT→5V); Low = charge mode - enables bi-directional power path. |
| 17 BOOST | Boost status indicator | Open-drain low-active signal confirms active boost operation. |
| 18 CHG | Charge status indicator | Open-drain low-active signal indicates active charging or suspended state. |
Key Features
| Feature | Design Value |
|---|---|
| USB-OTG boost with current limit | Programmable 0.9–1.5A output current limit and integrated short-circuit protection prevent system damage during peripheral power delivery. |
| Input voltage regulation | REG pin feedback loop maintains stable VIN during high-current charging - avoids USB port brownout under load. |
| Three-phase charge algorithm | Automated trickle (250mA)/constant-current/constant-voltage sequencing with auto-recharge at 4.015V ensures full capacity and longevity. |
| Integrated thermal foldback | Reduces charge current before reaching 150°C shutdown - sustains operation under sustained high-power conditions. |
| Battery reverse leakage blocking | Internal MOSFET blocks >15μA battery discharge when VIN=0 - extends shelf life in standby. |
Applications
| Power Bank Charging System | Smartphone USB-OTG Power Delivery |
|---|---|
|
Use Scenario: Portable power bank charges internal Li-ion cell from 5V USB source while simultaneously powering external devices. IC Role / Device Role / Timing Role: Dual-role power management IC managing input current allocation, battery CV/CC charging, and regulated 5V boost output. Use Value: Enables simultaneous charge-and-discharge with <1.2ms mode transition and input-current limiting to stay within USB 2.0 spec. |
Use Scenario: Smartphone powers USB peripherals (keyboard, flash drive) directly from its battery via micro-USB OTG port. IC Role / Device Role / Timing Role: Boost converter with battery voltage monitoring and weak-battery cutoff (2.5V) to prevent deep discharge. Use Value: Delivers stable 5V/1A output with 91% efficiency and automatic shutdown below safe battery voltage. |
| Tablet Auxiliary Battery Management | Wearable Health Monitor Charger |
|
Use Scenario: Tablet uses MP2626GR-Z to manage supplemental battery pack charging and system power routing during low-VIN conditions. IC Role / Device Role / Timing Role: Bi-directional power-path controller with input-voltage regulation and thermal foldback for sustained operation. Use Value: Maintains system uptime by dynamically balancing input current between charging and system load under 4.5–6V input. |
Use Scenario: Compact wearable device requires safe, temperature-monitored charging of small-capacity Li-Po battery. IC Role / Device Role / Timing Role: Precision charger with NTC-based JEITA-compliant temperature profiling and 250mA trickle charge for deeply discharged cells. Use Value: Prevents charging outside 0°C–50°C range and terminates after 400-minute max timer to avoid overcharge risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-mode Li-ion charging applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ24195RGER | Single-input (no native input-voltage regulation); fixed 4.2V charge voltage; no programmable boost current limit. | Lacks input-voltage clamp - unsuitable for unstable USB sources; lower integration reduces BOM count but limits flexibility. | Select when cost-sensitive designs require proven TI ecosystem support and do not need adaptive input regulation. |
| RT9466GQW | Supports 4.35V charge voltage and NTC monitoring, but no boost mode - charge-only function. | Cannot power USB peripherals; requires separate boost IC for OTG functionality - increases board area and complexity. | Choose only for charge-only applications where MP2626GR-Z's dual-mode capability is unnecessary. |
Compared with BQ24195RGER and RT9466GQW, MP2626GR-Z uniquely integrates USB-compliant input regulation, selectable 4.2V/4.35V termination, and programmable boost current in one QFN-24 package - enabling compact, self-contained power-bank and OTG designs without secondary regulators.
Availability
MP2626GR-Z is available at Aetrix Electronics and suitable for power-bank development, smartphone OTG subsystems, and tablet auxiliary battery management requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for MP2626GR-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 analog semiconductor company specializing in high-efficiency DC-DC converters, battery management, and motor drivers for portable, industrial, and automotive markets.
The MP2626 belongs to MPS's battery management IC product line, designed specifically for space-constrained, USB-powered portable devices requiring integrated charge + boost functionality with robust safety features.
FAQ
What is the purpose of the REG pin?
The REG pin serves as the feedback input for the input-voltage regulation loop. By connecting it to a resistor divider from VIN to GND, the MP2626GR-Z actively reduces charge current to maintain VIN above a programmed threshold - preventing USB port undervoltage during high-current charging.
How does the MP2626GR-Z handle battery temperature monitoring?
It uses the NTC pin to interface with a negative-temperature-coefficient thermistor. The IC compares the thermistor voltage against rising/falling thresholds (65.3–36% R25) to enforce JEITA-compliant charging - suspending charge outside 0°C–50°C and providing hysteresis to prevent oscillation near trip points.
Can the MP2626GR-Z operate without an external inductor?
No. The MP2626GR-Z is a synchronous switch-mode charger requiring an external 4.7µH inductor (as specified in the typical application circuit). Omitting the inductor disables both charge and boost functions, as the internal power switches rely on it for energy transfer and current sensing.
What happens when the MODE pin is pulled high but no battery is connected?
The IC enters boost mode but immediately disables output due to weak-battery detection (VBATT < 2.5V). The BOOST pin remains low, and the device draws only 2.0mA quiescent current - preventing uncontrolled operation or damage in open-battery conditions.
Is the 4.35V charge voltage option compatible with standard Li-ion cells?
Yes - 4.35V is specified for high-capacity Li-polymer and certain Li-ion chemistries. The MP2626GR-Z achieves ±0.5% accuracy at 25°C and includes battery over-voltage protection at 103.3% of the selected full voltage, ensuring safe operation across temperature and aging.
How is thermal shutdown triggered and recovered?
Thermal shutdown activates at 150°C junction temperature. Once tripped, the device halts all switching and remains off until die temperature falls below the hysteresis threshold (~135°C), after which normal operation resumes automatically without external reset.
Does the MP2626GR-Z support USB BC1.2 or proprietary fast-charge protocols?
No - it implements USB 2.0-compliant current limiting (up to 500mA default, programmable to 2.2A) but lacks D+/D− detection or protocol negotiation. It relies on host-side signaling (e.g., PWIN logic) to determine input presence, not enumeration-based fast-charge handshaking.
MP2626GR-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 24-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current, Timer, Voltage
- Fault Protection:
- Over Current, Over Voltage, Short Circuit
- Charge Current - Max:
- 2A
- Battery Pack Voltage:
- 4.2V, 4.35V
- Voltage - Supply (Max):
- 6V
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
MP2626GR-Z FAQ
1.How can I place an order for MP2626GR-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2626GR-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 MP2626GR-Z reliable?
The price and inventory of MP2626GR-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2626GR-Z is usually 5 days.
3.What payment methods are accepted for MP2626GR-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2626GR-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2626GR-Z?
MP2626GR-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2626GR-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 MP2626GR-Z?
For technical support, including MP2626GR-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2626GR-Z requirements.
6.How does Aetrix verify that MP2626GR-Z is sourced from the original manufacturer or authorized distributors?
All MP2626GR-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 MP2626GR-Z meets industry standards.
7.What is the process for return or replacement of MP2626GR-Z?
All MP2626GR-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2626GR-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 MP2626GR-Z part is unused and in its original packaging.
Return procedure for MP2626GR-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP2626GR-Z Tags
-
BQ21040DBVR
Texas Instruments
-
MCP73812T-420I/OT
Microchip Technology
-
MCP73831T-2ACI/OT
Microchip Technology
-
MCP73832T-2ACI/OT
Microchip Technology
-
MCP73831T-2DCI/OT
Microchip Technology
-
MCP73832T-2DCI/OT
Microchip Technology
-
MCP73831T-2ATI/OT
Microchip Technology
-
MCP73832T-2ATI/OT
Microchip Technology
-
MCP73831T-5ACI/OT
Microchip Technology
-
MCP73832T-2ACI/MC
Microchip Technology
-
MCP73831T-2ACI/MC
Microchip Technology
-
MCP73831T-2ATI/MC
Microchip Technology
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…
