Analog Devices Inc./Maxim Integrated MAX17291CANT+T
- Part No.:
- MAX17291CANT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-XFBGA, WLBGA
- Datasheet:
-
MAX17291CANT+T.pdf
- Description:
- IC REG BOOST ADJ 6WLP
- Quantity:
- Payment:

- Shipping:

Inventory:2,363
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Product details
Overview
MAX17291CANT+T from Analog Devices is a high-voltage, micropower boost DC-DC converter with 80mA peak inductor current limit, True Shutdown™, 1.8V–4.5V input range, and externally adjustable 5.5V–20V output voltage-designed for ultra-low-power sensor modules and primary-cell portable systems.
For engineers reviewing the MAX17291CANT+T datasheet, MAX17291CANT+T pinout, MAX17291CANT+T application, or MAX17291CANT+T equivalent, key selection criteria include quiescent supply current (28µA), shutdown current (13nA), output short-circuit protection, discontinuous conduction mode operation, and 6-bump WLP package compatibility with space-constrained PCB layouts.
Technical Context
The MAX17291CANT+T employs current-mode control in discontinuous conduction mode (DCM) with pulse frequency modulation (PFM) for light-load efficiency. Its on-time is governed by an 80mA peak inductor current limit, and off-time terminates when inductor current reaches zero.
It integrates an N-channel power switch, P-channel load switch, and power diode. True Shutdown™ fully isolates OUT from IN with no forward or reverse leakage, enabled via active-high EN pin and enforced by 13nA shutdown current and -40°C to +125°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8V to 4.5V - supports single alkaline, Li-SOCl₂, or low-voltage lithium primary cells without external LDO pre-regulation. |
| Output Voltage Range | 5.5V to 20V - programmable via external resistor divider (FB = 1.25V reference), enabling direct interface with analog sensors or legacy logic requiring >5V rails. |
| Quiescent Supply Current | 28µA at VIN - enables multi-year battery life in always-on IoT endpoints powered by coin cells or AA/AAA batteries. |
| Shutdown Current | 13nA - ensures negligible standby drain, critical for wake-on-event architectures where system remains in deep sleep for extended periods. |
| Peak Inductor Current Limit | 80mA - constrains inrush and fault current during startup and short-circuit events, simplifying inductor selection (4.7µH–15µH) and reducing thermal stress. |
| Operating Temperature | -40°C to +125°C - qualified for industrial and medical environments including wearable biosensors and sealed environmental monitors. |
| Package | 6-bump WLP, 1.27mm × 0.87mm, 0.4mm pitch - smallest available footprint for boost converters in this voltage class, minimizing board area in miniaturized modules. |
Pinout & Package
The MAX17291CANT+T uses a 6-bump wafer-level package (WLP), 1.27mm × 0.87mm, 0.4mm pitch, top view (bump side down). Thermal resistance θJA = 95.15°C/W on a four-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX | Switching node | Connects internal N-FET drain to external inductor; carries high di/dt switching current-requires shortest possible trace to minimize EMI and voltage overshoot. |
| IN | Input supply | Accepts 1.8V–4.5V source; must be bypassed with ≥22µF ceramic capacitor directly to GND to suppress input ripple and sustain peak current delivery. |
| EN | Enable input (active-high) | Logic-level control: VIH ≥ 820mV, VIL ≤ 750mV; if unused, tie to IN-no external pull-up required. |
| FB | Feedback input | Senses divided output voltage; internal 1.25V reference sets regulation point-R1/R2 ratio determines VOUT, with R1 < 475kΩ recommended for accuracy and noise immunity. |
| OUT | Regulated output | Delivers 5.5V–20V; requires ≥4.7µF ceramic capacitor placed adjacent to OUT/GND pins to stabilize loop and limit ripple. |
| GND | Power ground | Primary return path for LX, IN, and OUT currents; must connect to solid ground plane with multiple vias to reduce impedance and improve thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| True Shutdown™ isolation | Zero forward/reverse current between IN and OUT during shutdown-enables true system-level power gating without external MOSFETs or diodes. |
| Output short-circuit protection | Self-limiting 80mA peak current + 1.5µs forced off-time during VOUT ≈ 0V-prevents thermal runaway and allows safe recovery without latch-off. |
| Integrated power diode & load switch | Eliminates need for external Schottky diode and output disconnect FET-reduces BOM count, solution size, and layout complexity in space-critical designs. |
| Discontinuous conduction mode (DCM) | Ensures stable regulation across full load range (including µA-level loads) without requiring external compensation components. |
| Undervoltage lockout (UVLO) | 1.7V rising threshold with 100mV hysteresis-prevents erratic startup or brownout oscillation during battery discharge or cold-temperature operation. |
Applications
| Primary Cell Portable Systems | Battery-Powered Medical Equipment |
|---|---|
Use Scenario: Single AA/AAA or coin-cell-powered handheld meters with LCD display and wireless telemetry. IC Role / Device Role / Timing Role: Boost converter generating stable 12V rail for LCD bias and RF transceiver operation from fading 1.5V–3.0V battery. Use Value: 28µA quiescent current extends battery life beyond 5 years in intermittent-use devices; True Shutdown eliminates standby drain during sleep intervals. | Use Scenario: Wearable ECG patch with analog front-end, ADC, and Bluetooth LE radio. IC Role / Device Role / Timing Role: High-efficiency step-up regulator delivering 5.5V to analog signal chain and 3.3V-compatible BLE module from Li-MnO₂ cell. Use Value: 13nA shutdown current preserves battery capacity during patient non-wear periods; -40°C to +125°C rating supports sterilization and body-temperature operation. |
| Tiny, Low-Power IoT Sensors | Low-Power, Wireless Communication Products |
Use Scenario: Sub-gram environmental sensor node (temp/humidity/pressure) transmitting via LoRaWAN every 10 minutes. IC Role / Device Role / Timing Role: Micropower boost stage powering 3.3V MCU and 5V sensor array from 2.0V primary lithium cell. Use Value: DCM + PFM operation maintains >80% efficiency at 10µA–1mA loads; compact WLP footprint fits within 5mm × 5mm total PCB area. | Use Scenario: Zigbee or Thread end-device with integrated RF transceiver requiring 3.3V core and 5V PA supply. IC Role / Device Role / Timing Role: Dual-rail generator: one MAX17291CANT+T for 5V PA, another for 3.3V logic-both sharing same battery source. Use Value: Integrated short-circuit and overtemperature protection avoids external fault management circuitry; 80mA current limit aligns with typical PA burst-current requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61291DRVR | Higher IQ (40µA), lower max VOUT (5.5V), no True Shutdown-leakage current ~100nA, not full IN-OUT isolation. | Best suited for 3.3V/5V systems with tighter cost targets but less stringent shutdown leakage requirements. | Select only if output voltage ≤5.5V and 13nA shutdown is not mandatory; verify EN logic compatibility (TPS61291 uses active-low enable). |
| LT3467EDD#TRPBF | Higher IQ (60µA), wider VOUT range (up to 36V), larger 10-pin DFN package (3mm × 3mm), no integrated load switch. | Preferred for higher-output-voltage applications (>20V) or where thermal margin is critical-θJA = 60°C/W vs. 95°C/W. | Choose when >20V output or higher peak current (250mA) is needed; accept larger footprint and higher quiescent draw for extended voltage capability. |
Compared with TPS61291DRVR and LT3467EDD#TRPBF, the MAX17291CANT+T uniquely delivers sub-30µA quiescent current, 13nA shutdown, and full IN-OUT isolation in the smallest WLP package-making it optimal for primary-cell-powered micro-sensors where every nanoamp and square millimeter matters.
Availability
MAX17291CANT+T is available at Aetrix Electronics and suitable for primary-cell portable systems, battery-powered medical equipment, tiny low-power IoT sensors, and low-power wireless communication products requiring stable component supply across long product lifecycles.
Supply support for MAX17291CANT+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX17291CANT+T belongs to Analog Devices' micropower DC-DC converter product line, engineered specifically for ultra-low-power, high-voltage boost applications in battery-constrained edge devices-emphasizing minimal quiescent current, robust protection, and minimal solution size.
FAQ
What is the minimum input voltage required for MAX17291CANT+T to start regulation?
The MAX17291CANT+T features undervoltage lockout (UVLO) with a rising threshold of 1.7V (typical). Regulation begins once the input voltage exceeds this level, and hysteresis of 100mV prevents oscillation during slow battery discharge. Below 1.6V, the device remains disabled-even if EN is high-ensuring reliable startup behavior across temperature and process variation.
Does MAX17291CANT+T require an external Schottky diode?
No, the MAX17291CANT+T integrates a power diode internally, eliminating the need for an external Schottky diode. This integration reduces bill-of-materials count, PCB area, and layout sensitivity-particularly beneficial in miniature sensor modules where space and assembly cost are critical constraints.
How does True Shutdown™ in MAX17291CANT+T differ from standard shutdown modes?
True Shutdown™ in the MAX17291CANT+T fully disconnects the output from the input using an integrated P-channel load switch, resulting in zero forward or reverse current flow (<13nA total). Standard shutdown modes often leave parasitic paths active, permitting leakage that depletes batteries over months-whereas MAX17291CANT+T enables true zero-drain system sleep states.
What is the recommended inductor value for a 12V output with MAX17291CANT+T?
For a 12V output, the MAX17291CANT+T datasheet recommends a 10µH inductor (Table 1). This value balances transient response, efficiency, and physical size-optimized for operation in discontinuous conduction mode across the full load range. Inductors with saturation current ≥150mA and DCR < 200mΩ are preferred to maintain stability and minimize losses.
Can MAX17291CANT+T drive a 50mA continuous load at 15V output?
Yes-the MAX17291CANT+T can sustain 50mA continuous output at 15V, provided the input is ≥2.5V and thermal design accommodates power dissipation. At VIN = 3.6V, VOUT = 15V, IOUT = 50mA, efficiency is ~82%, and junction temperature rise remains within limits on a four-layer board with proper copper pour and thermal vias-verified per the device's 840mW power dissipation rating at TA = +70°C.
MAX17291CANT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-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):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 20V
- Current - Output:
- -
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WLP (1.27x0.87)
MAX17291CANT+T FAQ
1.How can I place an order for MAX17291CANT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17291CANT+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 MAX17291CANT+T reliable?
The price and inventory of MAX17291CANT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17291CANT+T is usually 5 days.
3.What payment methods are accepted for MAX17291CANT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17291CANT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17291CANT+T?
MAX17291CANT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17291CANT+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 MAX17291CANT+T?
For technical support, including MAX17291CANT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17291CANT+T requirements.
6.How does Aetrix verify that MAX17291CANT+T is sourced from the original manufacturer or authorized distributors?
All MAX17291CANT+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 MAX17291CANT+T meets industry standards.
7.What is the process for return or replacement of MAX17291CANT+T?
All MAX17291CANT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17291CANT+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 MAX17291CANT+T part is unused and in its original packaging.
Return procedure for MAX17291CANT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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