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Analog Devices Inc./Maxim Integrated MAX17250ANC+
- Part No.:
- MAX17250ANC+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-XFBGA, WLBGA
- Datasheet:
-
MAX17250ANC+.pdf
- Description:
- IC REG BOOST ADJ 12WLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,646
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Product details
Overview
MAX17250ANC+ from Maxim Integrated is a synchronous boost DC-DC converter optimized for battery-powered systems, delivering 12V output from a 7.2V input with 93% peak efficiency, 0.1μA True Shutdown current, and programmable 1.85A/2.7A/3.5A input peak current limit. It operates across -40°C to +125°C and supports compact 12-bump WLP packaging.
For engineers reviewing the MAX17250ANC+ datasheet, MAX17250ANC+ pinout, MAX17250ANC+ application, or MAX17250ANC+ equivalent, this page provides verified technical context, package-specific pin definitions, real-world operating conditions (VIN = 7.2V, VOUT = 12V), thermal derating data, and validated alternative options for IoT sensor nodes, display supplies, and Li-ion–powered alarm drivers.
Technical Context
The MAX17250ANC+ implements a fixed on-time / minimum off-time Pulse Frequency Modulation (PFM) control architecture with 800ns maximum on-time and 200ns minimum off-time, enabling ultra-low 60μA quiescent current in light-load operation. Its three-mode sequencing includes soft-start, regulated PFM, and True Shutdown-where input-to-output isolation reduces battery drain to 0.1μA.
It integrates dual N-channel MOSFETs (high-side and low-side), a load switch driver (PVH), and analog circuitry referenced to AGND and PGND. The ISET pin selects one of three peak inductor current limits (1.85A/2.7A/3.5A), while FB regulates output voltage via a resistor divider targeting 1.25V reference accuracy (±1.2%).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 18V - supports single/dual-cell Li-ion (3.0V–8.4V) and wide industrial rails without external pre-regulation. |
| Output Voltage Range | 3V to 18V - adjustable above VIN; configured to 12V in this variant's typical application with 1.25V ±1.2% FB reference. |
| Efficiency | 93% peak - achieved at 7.2V→12V conversion with 2.2µH inductor and 10µF COUT, enabling extended runtime in low-power IoT devices. |
| Quiescent Current | 60μA typical - enables >1-year battery life in always-on sensor nodes with intermittent wake-up bursts. |
| True Shutdown Current | 0.1μA typical - eliminates parasitic drain during system sleep, critical for long-term storage or maintenance-free deployments. |
| Switching On-Time | 800ns max - sets minimum energy per cycle and enables stable regulation down to ultra-light loads (<100µA). |
| Operating Temperature | -40°C to +125°C - qualified for automotive cabin, industrial edge controllers, and outdoor wireless modules. |
Pinout & Package
MAX17250ANC+ uses a 12-bump, 1.72mm × 1.49mm Wafer-Level Package (WLP) with bottom-side solder bumps. Thermal performance is defined by θJA = 72.82°C/W on a four-layer board; no exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input power supply connection | Accepts 2.7V–18V; requires two 10µF ceramic capacitors to PGND to suppress ripple-induced UVLO trips at low VIN. |
| LX | Inductor switching node | Drives external 2.2µH inductor; RMS current rating ±3.2A; high di/dt node requiring minimal trace area and tight layout. |
| OUT | Regulated output voltage | Delivers up to 12V/760mA (typical); connects to ≥10µF output capacitor and load; isolated from IN during True Shutdown. |
| PVH | Load switch gate driver supply | Supplies gate drive for internal load switch; requires two 22µF X7R capacitors to PGND for stable high-side FET turn-on. |
| FB | Feedback voltage sense | Monitors resistive divider (R1/R2/Rz) to regulate VOUT; 1.25V reference with ±1.2% accuracy ensures ±150mV output tolerance at 12V. |
| ISET | Peak current limit selection | Three-state logic: open = 1.85A, AGND = 2.7A, VL = 3.5A - configures inductor saturation margin and short-circuit robustness. |
| EN | Active-high enable control | Logic-level input (VIH ≥1.5V); asserts True Shutdown when low, disconnecting OUT from IN and reducing IQ to 0.1μA. |
| VL | Internal LDO output | 3.35V ±3% regulated supply for analog circuitry; requires ≥2.2µF decoupling capacitor to AGND placed adjacent to pin. |
| AGND | Analog ground reference | Separate from PGND; ties FB, VL, BST, and ISET to minimize noise coupling into feedback path. |
| BST | Bootstrap capacitor connection | Connects 0.1µF ceramic capacitor to LX; sustains high-side FET gate drive during continuous conduction mode. |
| PGND | Power ground return | High-current return path for IN, LX, PVH, and OUT; must be low-impedance plane tied to AGND at single point near VL. |
Key Features
| Feature | Design Value |
|---|---|
| True Shutdown™ | 0.1μA shutdown current with full input–output isolation - eliminates need for external load switches in battery-critical designs. |
| Programmable Input Peak Current Limit | Three selectable thresholds (1.85A/2.7A/3.5A) via ISET pin - balances inductor size, thermal margin, and short-circuit response time. |
| Synchronous Rectification | Integrated high-side and low-side N-FETs - removes external Schottky loss, enabling 93% efficiency at 7.2V→12V/500mA. |
| Short-Circuit Protection | Auto-latching shutdown upon OUT-to-GND fault - prevents thermal runaway and enables safe recovery via EN toggle or power cycle. |
| Wide Temperature Operation | -40°C to +125°C junction range with overtemperature lockout at 165°C - supports under-hood, factory-floor, and outdoor deployment. |
Applications
| Digital Cameras | Battery-Powered IoT Devices |
|---|---|
Use Scenario: Powering CMOS image sensors and flash LEDs from a single 3.7V Li-ion cell. IC Role / Device Role / Timing Role: Boost converter generating stable 12V rail for active pixel sensor bias and LED strobe drive. Use Value: 93% efficiency extends capture duration per charge; True Shutdown preserves battery during standby between photo sessions. |
Use Scenario: Supplying 12V to LoRaWAN transceivers and environmental sensors in remote field nodes. IC Role / Device Role / Timing Role: Primary DC-DC regulator converting 7.2V (2S Li-ion) to 12V for RF power amplifier and sensor bias. Use Value: 60μA quiescent current enables multi-year operation on primary cells; programmable current limit avoids inductor saturation during transmit bursts. |
| 1 or 2 Cell Li-ion Battery Applications | Display Supply |
Use Scenario: Providing regulated 12V from variable 3.0V–8.4V battery stack in portable medical monitors. IC Role / Device Role / Timing Role: Main power stage maintaining constant output despite battery discharge curve and load transients. Use Value: Fixed on-time PFM control maintains regulation down to 100µA load; soft-start prevents inrush damage to battery protection ICs. |
Use Scenario: Driving TFT-LCD backlight inverters requiring precise 12V input in handheld diagnostic tools. IC Role / Device Role / Timing Role: High-efficiency step-up source feeding DC-AC inverter stage with low output ripple. Use Value: 1.25V FB reference accuracy (±1.2%) ensures consistent backlight brightness; PVH decoupling minimizes switching noise injection into analog video paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17250ATD+ | 14-pin 3mm×3mm TDFN package with exposed thermal pad; θJA = 41°C/W (4-layer board) vs. 72.82°C/W for WLP; same electrical specs. | Better thermal performance supports higher continuous output current (e.g., 12V/1A) in space-constrained industrial PCBs with limited airflow. | Select MAX17250ATD+ when ambient temperature exceeds 70°C or sustained load exceeds 760mA; use MAX17250ANC+ for ultra-compact wearables or sealed enclosures where board area is critical. |
| TPS610992DSER | TI part with 0.75μA shutdown current, 2.5V–5.5V input, fixed 3.3V/5V outputs only; no programmable current limit or PVH rail. | Limited to low-voltage, fixed-output applications; lacks 12V capability and load-switch integration required for display or buzzer drivers. | Choose TPS610992DSER only for sub-5.5V, fixed-rail, ultra-low-IQ designs; MAX17250ANC+ remains necessary for 12V generation, Li-ion compatibility, and programmable protection. |
Compared with MAX17250ATD+, the MAX17250ANC+ saves 0.8mm² board area but trades 31.8°C/W higher thermal resistance; versus TPS610992DSER, it adds 12V flexibility and integrated load-switch control at the cost of higher minimum input voltage and complexity.
Availability
MAX17250ANC+ is available at Aetrix Electronics and suitable for battery-powered IoT devices, portable medical monitors, and industrial display subsystems requiring stable component supply, RoHS-compliant packaging, and guaranteed -40°C to +125°C operation.
Supply support for MAX17250ANC+ 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
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX17250 product line delivers high-efficiency, ultra-low-quiescent-current boost converters for space- and battery-constrained systems such as wearable sensors, smart meters, and portable instrumentation.
FAQ
What is the maximum output current supported by the MAX17250ANC+ at 12V output?
The MAX17250ANC+ supports up to 760mA continuous output current at 12V with 7.2V input, based on thermal limits of its 12-bump WLP package (θJA = 72.82°C/W) and 3.5A peak input current limit setting. This assumes 92% efficiency, 2.2µH inductor, and proper PCB copper pour. Exceeding this current risks junction temperature exceeding 125°C unless thermal design is enhanced.
How does the ISET pin configuration affect short-circuit protection behavior in the MAX17250ANC+?
In the MAX17250ANC+, the ISET pin setting directly determines the inductor peak current limit (1.85A/2.7A/3.5A), which governs short-circuit current magnitude before latching shutdown. With ISET = VL (3.5A), the device delivers ~4.25A short-circuit current before disabling; with ISET = open (1.85A), it limits to ~2.6A. All configurations trigger permanent latch-off until EN toggled or power cycled.
Can the MAX17250ANC+ operate with an input voltage below 2.7V?
No - the MAX17250ANC+ has a guaranteed minimum input voltage of 2.7V, with undervoltage lockout (UVLO) activating at 2.6V (rising) and 2.5V (falling). Operation below 2.7V is not characterized or supported; attempting to power the MAX17250ANC+ from a deeply discharged Li-ion cell (<3.0V) will cause repeated UVLO cycling and failure to regulate.
What is the purpose of the PVH pin on the MAX17250ANC+, and how must it be decoupled?
The PVH pin on the MAX17250ANC+ supplies gate drive voltage for the internal load switch FET. It must be decoupled with two 22µF X7R ceramic capacitors connected to PGND, as specified in the Typical Application Circuit. Insufficient PVH capacitance causes gate drive droop, leading to increased RDS(ON), thermal stress, and potential load switch failure under heavy current.
Does the MAX17250ANC+ require external compensation components for stability?
No - the MAX17250ANC+ uses a fixed on-time PFM control architecture that is inherently stable without external compensation. Stability is ensured by selecting the correct inductor value (2.2µH for 12V output) and maintaining recommended input/output capacitor values (2×10µF CIN, 10µF COUT, 2×22µF CPVH). No external RC networks or compensation pins are present.
MAX17250ANC+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-XFBGA, WLBGA
- Packaging:
- Strip
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- 18V
- Current - Output:
- -
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WLP (1.69x1.46)
MAX17250ANC+ FAQ
1.How can I place an order for MAX17250ANC+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17250ANC+ 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 MAX17250ANC+ reliable?
The price and inventory of MAX17250ANC+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17250ANC+ is usually 5 days.
3.What payment methods are accepted for MAX17250ANC+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17250ANC+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17250ANC+?
MAX17250ANC+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17250ANC+ 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 MAX17250ANC+?
For technical support, including MAX17250ANC+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17250ANC+ requirements.
6.How does Aetrix verify that MAX17250ANC+ is sourced from the original manufacturer or authorized distributors?
All MAX17250ANC+ 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 MAX17250ANC+ meets industry standards.
7.What is the process for return or replacement of MAX17250ANC+?
All MAX17250ANC+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17250ANC+, 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 MAX17250ANC+ part is unused and in its original packaging.
Return procedure for MAX17250ANC+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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