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Analog Devices Inc./Maxim Integrated MAX14750AEWA+
- Part No.:
- MAX14750AEWA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 25-WFBGA, WLBGA
- Datasheet:
-
MAX14750AEWA+.pdf
- Description:
- IC REG TRIPLE BUCK/BST/LNR 25WLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,866
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Product details
Overview
MAX14750AEWA+ from Analog Devices is a highly integrated, micro-IQ power-management IC designed as a companion PMIC for rechargeable battery systems. It integrates a 250mW buck-boost regulator (2.5V–5V output), a 200mA synchronous buck regulator (1.0V–2.0V), a 100mA LDO (0.9V–4.0V), and a 200mA load switch with battery monitoring - all in a 25-bump WLP (2.26mm × 2.14mm). It enables flexible, pin-controlled sequencing in wearable medical and fitness devices.
For engineers reviewing the MAX14750AEWA+ datasheet, MAX14750AEWA+ pinout, MAX14750AEWA+ application, or MAX14750AEWA+ equivalent, this page delivers verified electrical specs, I²C interface behavior, thermal shutdown thresholds, battery impedance measurement capability, and direct enable-pin control architecture - critical for low-power, space-constrained portable designs.
Technical Context
The MAX14750AEWA+ implements independent hardware enable inputs (HVEN, SWEN, LEN, BEN) for each regulator and switch, eliminating reliance on internal sequencers - unlike the MAX14720. Its buck-boost and buck regulators operate in burst mode at light loads, achieving 1.1µA and 0.9µA quiescent current respectively, while supporting programmable current limits and soft-start timing.
Battery impedance measurement is disabled in the MAX14750AEWA+, as confirmed by device-specific functional partitioning in the datasheet; only the MAX14720 includes BatZUVLO and SWOUT-based impedance detection. The monitor multiplexer (MON pin) supports voltage sampling across HVIN, BIN, SWOUT, LOUT, and BOUT with ≤500Ω switch resistance and 80µs break-before-make timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Buck-Boost Output | 2.5V to 5.0V programmable in 100mV steps; supports display biasing and wide-input battery rails |
| Buck Regulator Output | 1.0V to 2.0V programmable in 25mV steps; optimized for low-voltage digital cores |
| LDO Output | 0.9V to 4.0V programmable in 100mV steps; configurable as load switch with 1Ω RON at 1.8V |
| Quiescent Current | 0.9µA (LDO), 0.9µA (buck), 1.1µA (buck-boost); enables multi-year shelf life in sealed wearables |
| Switch On-Resistance | 250mΩ max at 2.7V; supports 200mA continuous load with <67mV dropout |
| Operating Temp Range | −40°C to +85°C; qualified for clinical-grade wearable environments |
| I²C Interface | Standard-mode (400kHz) with open-drain SDA/SCL; supports register read/write for dynamic configuration |
Pinout & Package
MAX14750AEWA+ uses a 25-bump, 0.4mm pitch wafer-level package (WLP), measuring 2.26mm × 2.14mm. The bump layout is defined per JEDEC MO-220, outline 21-0788, with RoHS-compliant finish indicated by the '+' suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HVEN | Buck-Boost Enable | Active-high hardware control; bypasses I²C for deterministic startup |
| SWEN | Power Switch Enable | Direct gate control of 200mA load switch; enables battery isolation during sleep |
| LEN | LDO Enable | Active-high input; allows LDO to be used as programmable power rail or load disconnect switch |
| BEN | Buck Regulator Enable | Hardware-triggered activation; decouples sequencing from firmware dependencies |
| MON | Multiplexer Output | Single-pin analog readback of HVIN/BIN/SWOUT/LOUT/BOUT via internal switches |
| SCL/SDA | I²C Interface | Configurable registers for voltage setpoints, UVLO thresholds, discharge modes, and timing |
| VCC | Supply Input | Primary bias rail (1.8V–5.5V); powers internal logic and I²C interface |
| SWIN/SWOUT | Load Switch Terminals | Isolates battery from system loads; supports impedance measurement only on MAX14720 (not enabled here) |
Key Features
| Feature | Design Value |
|---|---|
| Independent Hardware Enables | Four dedicated pins (HVEN, SWEN, LEN, BEN) allow asynchronous, firmware-independent power control |
| Micro-IQ Burst Mode | 1.1µA (buck-boost) and 0.9µA (buck/LDO) quiescent current extend battery runtime in standby |
| Programmable Output Voltages | All three regulators support fine-grained digital programming - 100mV (HVOUT/LOUT), 25mV (BOUT) steps |
| Monitor Multiplexer | Single MON pin samples five voltage nodes with <500Ω switch resistance and 80µs BBM timing |
| Thermal Protection | 150°C shutdown with 21°C hysteresis per regulator block ensures safe operation under sustained load |
Applications
| Wearable Medical Sensors | Portable ECG Monitors |
|---|---|
Use Scenario: Continuous biosignal acquisition in patch-style cardiac monitors powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Provides isolated, low-noise 1.8V rail for ADC and 3.3V for BLE radio via independent buck and LDO; load switch isolates battery during deep sleep. Use Value: 0.9µA LDO quiescent current and 250mΩ switch RON reduce sleep-mode drain to <2.8µA total, enabling >3-year battery life. | Use Scenario: Battery-powered, FDA-cleared ECG device requiring clinical-grade voltage stability and rapid wake-up. IC Role / Device Role / Timing Role: Delivers tightly regulated 2.5V for analog front-end and 1.2V for microcontroller core using buck-boost and buck regulators with burst-mode efficiency. Use Value: ±3% output accuracy and <31mV load transient response ensure ECG signal integrity during motion-induced current surges. |
| Fitness Tracker Power Hub | Smart Hearing Aid Subsystem |
Use Scenario: Multi-rail wearable with optical HR sensor, accelerometer, and Bluetooth LE transceiver sharing one coin-cell or small Li-po. IC Role / Device Role / Timing Role: Buck-boost supplies 3.3V to BLE radio, buck supplies 1.1V to MCU, LDO supplies 2.8V to sensor; all enabled independently via GPIOs. Use Value: Pin-controlled enables eliminate I²C boot dependency, reducing wake latency to <100ms for motion-triggered sensing. | Use Scenario: Miniaturized hearing aid with ultra-low-power DSP, MEMS microphone, and rechargeable microbattery. IC Role / Device Role / Timing Role: Powers DSP core (1.0V buck), RF section (2.5V buck-boost), and analog bias (3.0V LDO); load switch disconnects battery during charging. Use Value: 2.26mm × 2.14mm WLP footprint fits within 5mm × 5mm PCB area constraints while delivering 250mW boost capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14720AEWA+ | Includes push-button sequencer, battery impedance measurement, seal mode (120nA), and POR delay; lacks independent enable pins | Optimized for non-rechargeable or removable-battery systems requiring ultra-low-off-state current and shipping-mode control | Select MAX14720AEWA+ when button-driven power sequencing and sub-µA off-state are required; not pin-compatible due to different enable pin mapping |
| TPS65218D0RSLR | Quad DC/DC + LDO PMIC with integrated charger; larger 48-ball QFN; no battery impedance monitor; higher IQ (5µA) | Targeted at embedded AM335x/AM437x processors; includes USB/AC charger path and fuel gauge interface | Choose TPS65218D0RSLR for processor-centric designs needing integrated charging; MAX14750AEWA+ offers superior micro-IQ and smaller WLP for wearables |
Compared with MAX14720AEWA+, the MAX14750AEWA+ trades sequencer automation and battery seal mode for deterministic pin-control flexibility - making it ideal for rechargeable systems where firmware manages sequencing. Against TPS65218D0RSLR, it delivers 5× lower quiescent current and 60% smaller footprint, but lacks charger integration.
Availability
MAX14750AEWA+ is available at Aetrix Electronics and suitable for wearable medical sensors, portable ECG monitors, and fitness tracker power hubs requiring stable component supply, long-term lifecycle support, and validated wafer-level packaging performance.
Supply support for MAX14750AEWA+ 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The MAX147xx family targets ultra-low-power, space-constrained portable electronics - specifically engineered to replace discrete power solutions in wearables, medical patches, and IoT edge nodes where microamp quiescent current and sub-3mm² footprint are mandatory.
FAQ
What is the primary functional distinction between MAX14750AEWA+ and MAX14720AEWA+?
The MAX14750AEWA+ provides individual hardware enable pins (HVEN, SWEN, LEN, BEN) for direct, firmware-independent control of each regulator and switch, whereas the MAX14720AEWA+ uses an internal sequencer with push-button monitoring and automatic power-on sequencing. Battery impedance measurement and seal mode (120nA) are exclusive to MAX14720AEWA+. Both share identical regulators and WLP packaging, but pin functions differ - MAX14750AEWA+ does not support BatZUVLO or KIN/KOUT button logic.
Does MAX14750AEWA+ support battery impedance measurement like the MAX14720AEWA+?
No, battery impedance measurement is not supported in the MAX14750AEWA+. This feature is explicitly documented as exclusive to the MAX14720AEWA+ in the datasheet's "Battery Impedance Measurement (MAX14720, BatZUVLO Enabled Only)" section. The MAX14750AEWA+ omits the BatZUVLO function and associated SWOUT-based measurement circuitry, aligning with its role as a companion PMIC rather than a primary battery manager.
What are the absolute maximum ratings for the SWIN and SWOUT pins of MAX14750AEWA+?
The absolute maximum rating for SWIN is −0.3V to +6.0V; for SWOUT, it is −0.3V to (VBIN + 0.3V). Continuous current into SWIN is rated at ±1000mA, while SWOUT supports up to 200mA continuous output. These ratings are specified in the "Absolute Maximum Ratings" table of the MAX14750AEWA+ datasheet and apply across the full −40°C to +85°C operating temperature range.
Can the LDO in MAX14750AEWA+ be configured as a load switch, and what is its on-resistance?
Yes, the LDO in MAX14750AEWA+ can be configured as a load switch via register control. In switch mode, its on-resistance is 1Ω at VLIN = 1.8V and ILOUT = 50mA, and 3Ω at VLIN = 1.2V and ILOUT = 5mA. This dual-mode operation (regulator or switch) is confirmed in the Electrical Characteristics table under "Switch Mode Resistance (RON_LDO)" and enables flexible power routing without external FETs.
What is the thermal shutdown behavior of the buck-boost regulator in MAX14750AEWA+?
Each regulator block in MAX14750AEWA+ has independent thermal protection. The buck-boost regulator triggers shutdown at TJ = 150°C with 21°C hysteresis (TSHDN_BST and TSHDN_HYST_BST). Upon shutdown, the regulator disables switching, holds HVOUT in high-impedance state, and asserts no system-wide reset - allowing other blocks (e.g., buck, LDO) to remain operational if undamaged. Recovery occurs automatically once junction temperature falls below 129°C.
MAX14750AEWA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 25-WFBGA, WLBGA
- Packaging:
- Strip
- Product Status:
- Active
- Topology:
- Step-Down (Buck) (1), Step-Down/Step-Up (Buck/Boost) (1), Linear (LDO) (1)
- Number of Outputs:
- 3
- Frequency - Switching:
- 2MHz
- Voltage/Current - Output 1:
- 2.5V ~ 5V, PROG
- Voltage/Current - Output 2:
- 1V ~ 2V, 250mA
- Voltage/Current - Output 3:
- 0.9V ~ 4V, 100mA
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 25-WLP (2.11x2.23)
MAX14750AEWA+ FAQ
1.How can I place an order for MAX14750AEWA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14750AEWA+ 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 MAX14750AEWA+ reliable?
The price and inventory of MAX14750AEWA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14750AEWA+ is usually 5 days.
3.What payment methods are accepted for MAX14750AEWA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14750AEWA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14750AEWA+?
MAX14750AEWA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14750AEWA+ 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 MAX14750AEWA+?
For technical support, including MAX14750AEWA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14750AEWA+ requirements.
6.How does Aetrix verify that MAX14750AEWA+ is sourced from the original manufacturer or authorized distributors?
All MAX14750AEWA+ 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 MAX14750AEWA+ meets industry standards.
7.What is the process for return or replacement of MAX14750AEWA+?
All MAX14750AEWA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14750AEWA+, 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 MAX14750AEWA+ part is unused and in its original packaging.
Return procedure for MAX14750AEWA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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