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Analog Devices Inc./Maxim Integrated MAX17250ANC+T
- Part No.:
- MAX17250ANC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-XFBGA, WLBGA
- Datasheet:
-
MAX17250ANC+T.pdf
- Description:
- IC REG BOOST ADJ 12WLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,694
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Product details
Overview
The MAX17250ANC+T from Maxim Integrated is a synchronous DC-DC boost converter IC with True Shutdown™, programmable input current limit (1.85A/2.7A/3.5A), and short-circuit protection. It operates from 2.7V to 18V input, delivers 3V–18V output, and achieves 93% peak efficiency in battery-powered IoT sensors and display supplies.
For engineers reviewing the MAX17250ANC+T datasheet, MAX17250ANC+T pinout, MAX17250ANC+T application, or MAX17250ANC+T equivalent, this page provides verified package mapping (12-bump WLP), confirmed PFM control architecture, validated thermal performance (θJA = 72.82°C/W on 4-layer board), and real-world operating parameters including 60μA quiescent current and 0.1μA shutdown current.
Technical Context
The MAX17250ANC+T implements a fixed on-time / minimum off-time Pulse Frequency Modulation (PFM) control scheme with three operational modes: soft-start at power-up, normal regulation using only 60μA quiescent current, and True Shutdown with 0.1μA battery drain. Its 800ns maximum on-time and 200ns minimum off-time enable high-frequency operation up to ~1MHz in CCM.
It integrates dual N-channel MOSFETs (high-side and low-side), a load switch driver (PVH), and analog circuitry including a 1.25V reference, FB accuracy of ±1.2%, and overtemperature lockout at 165°C. The ISET pin selects inductor peak current limit via tie-to-VL (3.5A), tie-to-AGND (2.7A), or open (1.85A), with corresponding RDS(ON) values of 95mΩ, 120mΩ, and 175mΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 18V - supports single/dual Li-ion batteries and wide industrial rails without external LDO pre-regulation. |
| Output Voltage Range | 3V to 18V - adjustable via external resistor divider; always > VIN, enabling true step-up operation. |
| Quiescent Current | 60μA (typ) - enables multi-year battery life in always-on IoT endpoints with light intermittent loads. |
| Shutdown Current | 0.1μA (typ) - minimizes battery leakage during system sleep; measured at TA = +25°C with VEN = 0V. |
| Peak Efficiency | 93% - achieved at mid-load (e.g., 125mA @ VOUT = 12V, VIN = 7.2V), reducing thermal stress in compact enclosures. |
| Switching On-Time | 800ns (max) - sets minimum duty cycle and enables stable regulation at high VOUT/VIN ratios (e.g., 18V out from 2.7V in). |
| Thermal Resistance θJA | 72.82°C/W - measured on 4-layer PCB for WLP package; defines maximum power dissipation before derating above +70°C. |
| Operating Temperature | -40°C to +125°C - qualified for automotive cabin, industrial control, and outdoor sensor applications. |
Pinout & Package
MAX17250ANC+T uses a 12-bump, 1.72mm × 1.49mm Wafer-Level Package (WLP) with bottom-side solder bumps. Thermal performance relies on PCB copper area and vias under the exposed die pad (PGND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 2.7V–18V; requires two 10µF ceramic capacitors to PGND for ripple suppression and UVLO immunity. |
| EN | Active-high enable | Drives device into True Shutdown when low; must not exceed 5.5V if tied directly to IN. |
| FB | Feedback node | Senses output via resistor divider; internal 1.25V reference enables precise VOUT programming with ±1.2% accuracy. |
| ISET | Current limit select | Configures inductor peak current: open = 1.85A, AGND = 2.7A, VL = 3.5A - determines FET RDS(ON) and max output capability. |
| LX | Switching node | Connects to inductor; carries pulsed current up to 3.2ARMS (WLP); layout must minimize loop area to reduce EMI. |
| OUT | Regulated output | Delivers 3V–18V; requires ≥10µF ceramic capacitor to PGND for stability and ripple filtering. |
| PVH | Load switch gate drive supply | Supplies high-side FET gate; requires two 22µF capacitors to PGND to sustain heavy transient loads without droop. |
| VL | Internal LDO output | 3.35V (typ) regulated supply for internal circuitry; requires ≥2.2µF decoupling capacitor to AGND, placed adjacent to pin. |
| AGND | Analog ground reference | Separate from PGND; connects feedback divider and analog blocks; must be routed with low-noise, star topology. |
| PGND | Power ground return | High-current return path for IN, LX, PVH, OUT; connects to exposed thermal pad; must be solid copper plane with multiple vias. |
| BST | Bootstrap capacitor connection | Connects 0.1µF capacitor to LX; sustains high-side FET gate drive during switching cycles. |
| - | Exposed pad | Electrically connected to PGND; mandatory for thermal conduction and EMI reduction; must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| True Shutdown™ | 0.1μA shutdown current with complete input-output isolation - eliminates need for external load switches in battery-critical systems. |
| Programmable Input Current Limit | Three selectable IPEAK settings (1.85A/2.7A/3.5A) via ISET pin - allows optimization of inductor size, efficiency, and thermal margin per application. |
| Synchronous Rectification | Integrated high-side and low-side N-FETs with RDS(ON) as low as 95mΩ - removes external Schottky loss and improves light-load efficiency. |
| Short-Circuit Protection | Automatic latch-off upon output short detection - prevents thermal runaway and enables safe recovery via EN toggle or power cycle. |
| Wide Input/Output Range | 2.7V–18V input, 3V–18V output - supports direct integration with 1S/2S Li-ion, USB PD, and industrial 12V/24V rails without intermediate conversion. |
| Fixed On-Time PFM Control | 800ns tON + 200ns tOFF architecture - maintains regulation across 1000:1 load range while consuming only 60μA quiescent current. |
Applications
| Digital Cameras | Battery-Powered IoT Devices |
|---|---|
Use Scenario: Powering CMOS image sensor bias rails and flash LED drivers from a single 3.7V Li-ion cell. IC Role / Device Role / Timing Role: Boost converter providing stable 5V/8.4V outputs with fast transient response to burst-mode sensor activity. Use Value: Enables compact camera modules by eliminating discrete charge pumps and external load switches, while maintaining <0.1μA standby drain. |
Use Scenario: Supplying 3.3V to ultra-low-power microcontrollers and 12V to LoRaWAN RF transceivers in remote environmental sensors. IC Role / Device Role / Timing Role: Primary DC-DC regulator delivering dual-rail power with programmable current limit to match sensor duty cycle profiles. Use Value: Extends 10-year battery life via 60μA quiescent current and True Shutdown, while supporting 12V RF bursts without brownout. |
| 1 or 2 Cell Li-ion Battery Applications | Display Supply |
Use Scenario: Generating 12V backlight supply and 5V logic rail from 3.0V–8.4V battery stack in portable medical monitors. IC Role / Device Role / Timing Role: High-efficiency step-up regulator with overtemperature lockout (165°C) ensuring safe operation during extended use. Use Value: Eliminates thermal derating concerns through WLP package's 72.82°C/W θJA and integrated OTP, enabling fanless designs. |
Use Scenario: Driving TFT-LCD bias voltages (AVDD, VGH, VGL) requiring 12V–18V from a 3.7V battery in handheld test equipment. IC Role / Device Role / Timing Role: Adjustable boost converter with 18V absolute max output and 93% peak efficiency minimizing heat in sealed enclosures. Use Value: Reduces bill-of-materials by integrating synchronous rectification and short-circuit protection, avoiding external diodes and fuses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61088RHLR | Higher 5.5A peak current, 2.7V–12V input, no True Shutdown (1.5μA ISD), TQFN-20 package (4mm × 4mm) | Preferred for higher-output-current applications (>1A) where board space permits larger package and shutdown current is less critical | Select TPS61088RHLR when >1A continuous output and wider input range (up to 12V) are required; avoid if sub-1μA shutdown is mandatory. |
| LT3467ES6#TRMPBF | 2.7V–16V input, 3V–36V output, 1.3A peak current, 1.2MHz fixed-frequency PWM, SOT-23-6 package | Suited for cost-sensitive, lower-power designs needing simpler layout and no programmable current limit | Choose LT3467ES6#TRMPBF for basic boost needs with fixed frequency and minimal external components; not suitable for True Shutdown or 0.1μA ISD requirements. |
Compared with TPS61088RHLR and LT3467ES6#TRMPBF, the MAX17250ANC+T uniquely delivers 0.1μA shutdown current, 3.5A programmable peak current in a 1.72mm × 1.49mm WLP, and integrated short-circuit latch-off - making it optimal for space-constrained, battery-critical IoT and portable medical devices.
Availability
MAX17250ANC+T is available at Aetrix Electronics and suitable for battery-powered IoT devices, portable medical monitors, and digital camera modules requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX17250ANC+T 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 computing applications.
The MAX17250 belongs to Maxim's high-efficiency, low-quiescent-current DC-DC converter family, engineered specifically for battery longevity and compact footprint in space- and power-constrained portable electronics.
FAQ
What is the maximum output voltage supported by the MAX17250ANC+T?
The MAX17250ANC+T supports an output voltage range of 3V to 18V, always greater than the input voltage. This is achieved via external resistor divider on the FB pin, referencing an internal 1.25V bandgap. The 18V absolute maximum ensures compatibility with 2-cell Li-ion (8.4V) and industrial 12V/24V rails when used in boost configurations. Output voltage accuracy is ±1.2% over temperature and line/load conditions.
How does the True Shutdown™ feature of the MAX17250ANC+T reduce system power consumption?
The MAX17250ANC+T achieves 0.1μA typical shutdown current by completely disconnecting the input from the output using internal switches, preventing any leakage path. This is verified at TA = +25°C with VEN = 0V and VPVH = 7.2V. Unlike conventional enable schemes, True Shutdown™ eliminates battery drain in storage or deep-sleep modes, extending shelf life and enabling decade-long deployments in battery-powered IoT nodes.
Which package does the MAX17250ANC+T use, and what are its thermal implications?
The MAX17250ANC+T uses a 12-bump Wafer-Level Package (WLP) measuring 1.72mm × 1.49mm. Its junction-to-ambient thermal resistance (θJA) is 72.82°C/W on a four-layer PCB. This requires careful PCB layout - including a solid PGND copper pour under the exposed pad with multiple thermal vias - to maintain junction temperature ≤125°C. For higher-power applications, the TDFN variant (MAX17250ATD+) offers lower θJA (41°C/W) due to its larger thermal pad.
Can the MAX17250ANC+T operate with a 2.7V input and deliver 18V output?
Yes, the MAX17250ANC+T supports 2.7V–18V input and can generate up to 18V output, but duty cycle limitation must be verified. At VIN = 2.7V and VOUT = 18V, the theoretical duty cycle is ~78%, matching the device's maximum allowed value. Efficiency drops significantly in this condition; typical output current is limited to ~50mA (per datasheet curves). Use larger inductors (3.3µH) and ensure adequate input capacitance (≥20µF) to prevent UVLO dropout during transients.
How is the input current limit configured on the MAX17250ANC+T?
The MAX17250ANC+T provides three selectable inductor peak current limits via the ISET pin: open circuit = 1.85A (typ), tie to AGND = 2.7A (typ), or tie to VL = 3.5A (typ). These settings also adjust the low-side FET's RDS(ON) - from 175mΩ down to 95mΩ - directly impacting conduction loss and thermal performance. Configuration is latched at power-up or EN rising edge, and remains stable during operation.
MAX17250ANC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-XFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX17250ANC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17250ANC+T 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+T reliable?
The price and inventory of MAX17250ANC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17250ANC+T is usually 5 days.
3.What payment methods are accepted for MAX17250ANC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17250ANC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17250ANC+T?
MAX17250ANC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17250ANC+T 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+T?
For technical support, including MAX17250ANC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17250ANC+T requirements.
6.How does Aetrix verify that MAX17250ANC+T is sourced from the original manufacturer or authorized distributors?
All MAX17250ANC+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX17250ANC+T?
All MAX17250ANC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17250ANC+T, 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+T part is unused and in its original packaging.
Return procedure for MAX17250ANC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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