Monolithic Power Systems Inc. MP2607DL-LF-Z

Overview

MP2607DL-LF-Z from Monolithic Power Systems is a single-cell Li-ion/Li-polymer linear battery charger IC with integrated system power path management. It autonomously manages simultaneous system power delivery and battery charging from AC adapter (up to 12V input) or USB port, features ±0.75% CV voltage regulation at 4.2V, programmable CC current up to 1.5A, and 50mΩ battery-to-system switch for instant power-up with deeply discharged batteries. Used in portable consumer electronics requiring seamless power handoff.

For engineers reviewing the MP2607DL-LF-Z datasheet, MP2607DL-LF-Z pinout, MP2607DL-LF-Z application, or MP2607DL-LF-Z equivalent, key selection criteria include input source selection logic (MODE pin), thermal fold-back threshold (105–135°C), charge termination via IEOC (7–13% of ICHG), and NTC-based temperature fault detection with VTH_LT/VTH_HT thresholds referenced to VIN.

Technical Context

The MP2607 implements dual-path power routing: an internal LDO regulates SYS to ~4.85V from AC input (MODE = 5V), while USB input (MODE = GND) routes through a current-limited switch (450mA typ). Charging uses P-channel FET (RON_BATT ≤ 400mΩ) between IN and BATT, and system load is prioritized over charging current-reducing ICHG or enabling battery supplement mode when input limits are exceeded.

Power path control separates battery charging current from system load current, enabling accurate end-of-charge detection and preventing battery over-discharge during high SYS demand. The device integrates trickle/CC/CV charging, auto-recharge (VRECHG = 3.95–4.15V), thermal fold-back, and 4-state open-drain STAT outputs decoded from battery voltage, timer expiry, and NTC status.

Key Specifications

Pinout & Package

MP2607DL-LF-Z is housed in a thermally enhanced 14-pin QFN package (3mm × 4mm, exposed thermal pad), optimized for compact portable designs and efficient heat dissipation in high-current charging applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Li-ion linear charger with power path management applications.

Compared with BQ24075RGTR and TPS65023BRSBR, MP2607DL-LF-Z uniquely delivers real-time power path arbitration with battery supplement mode, ±0.75% CV accuracy over extended temperature, and single-resistor ICHG programming-making it optimal for compact, high-reliability portable devices where system uptime and battery longevity are critical.

Availability

MP2607DL-LF-Z is available at Aetrix Electronics and suitable for smartphones, digital cameras, handheld test equipment, and GPS navigation devices requiring stable component supply, RoHS-compliant packaging, and guaranteed long-term availability.

Supply support for MP2607DL-LF-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-performance analog and mixed-signal ICs for power management, motion control, and automotive applications.

The MP2607 belongs to MPS's battery management product line, engineered specifically for portable consumer electronics needing autonomous, space-efficient Li-ion charging with intelligent power path control and comprehensive safety features.

FAQ

What is the maximum input voltage rating for MP2607DL-LF-Z?

The absolute maximum input voltage (VIN) is 13V, with recommended operating range of 4.51V–5.9V in AC adapter mode and 4.51V–6.27V in USB mode. Input overvoltage protection triggers at 5.9V (AC) or 6.27V (USB), with hysteresis of 260mV or 310mV respectively, preventing damage from transient surges.

How does the battery supplement mode function during USB input operation?

When SYS voltage drops below VBATT due to high system load exceeding USB's 450mA current limit, MP2607 activates its 50mΩ N-channel switch between BATT and SYS. It first regulates VDS to a constant value at low supplement currents, then operates in fully-on RDS mode at higher currents-ensuring uninterrupted SYS supply without brownout.

Can MP2607DL-LF-Z charge a deeply discharged battery below 2.4V?

No. The device incorporates battery undervoltage lockout (UVLO) with a rising threshold of 2.4–3.2V. If VBATT is below 2.4V at power-up, charging is inhibited until the battery recovers to ≥2.4V-preventing unsafe charging of damaged or over-discharged cells.

What is the role of the MODE pin, and how is it configured?

The MODE pin selects the input source type: pulled high (≥1.5V) configures AC adapter mode with 5.9V OVP and 2A current limit; pulled low (≤0.3V) configures USB mode with 6.27V OVP and 450mA current limit. An internal pull-up resistor defaults MODE to high, simplifying design when only AC input is used.

How is charge termination implemented-by timer, current threshold, or both?

MP2607DL-LF-Z uses dual termination: (1) End-of-charge (EOC) occurs when charging current falls below IEOC (7–13% of ICHG) in CV mode; (2) Timer expiry (programmable via CTMR) forces termination regardless of current level. Both conditions latch STAT pins to "End of Charge" state, and timer resets upon full charge completion.

Does MP2607DL-LF-Z require an external blocking diode between IN and SYS?

No. The device integrates back-to-back MOSFETs in its power path architecture, eliminating reverse current flow from SYS to IN. This removes the need for external Schottky diodes, reducing BOM cost, board area, and forward voltage drop-critical for efficiency in portable systems.