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Analog Devices Inc./Maxim Integrated MAX1724EZK50-T
- Part No.:
- MAX1724EZK50-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX1724EZK50-T.pdf
- Description:
- IC REG BOOST 5V 400MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,564
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Product details
Overview
MAX1724EZK50-T from Maxim Integrated is a fixed-output, 5.0V step-up DC-DC converter optimized for single-cell battery operation (0.8V–5.5V input), delivering up to 150mA output current with ±1% output voltage accuracy and 1.5μA quiescent supply current. It integrates synchronous rectification and internal EMI suppression, targeting ultra-low-power portable devices such as remote wireless transmitters and personal medical instruments.
For engineers reviewing the MAX1724EZK50-T datasheet, MAX1724EZK50-T pinout, MAX1724EZK50-T application, or MAX1724EZK50-T equivalent, key selection criteria include guaranteed 0.91V startup voltage, TSOT-5 package compatibility, shutdown current of 0.01μA at +25°C, and absence of external diode requirement due to integrated synchronous rectifier.
Technical Context
The MAX1724EZK50-T employs a forced discontinuous, current-limited pulse-frequency-modulation (PFM) control scheme with no oscillator-switching frequency varies dynamically with load. It uses an internal 0.5Ω N-channel power switch and P-channel synchronous rectifier to eliminate external diode losses.
A dedicated low-voltage startup circuit powered from the BATT pin enables reliable operation down to 0.91V input, while an integrated damping switch suppresses inductor ringing at the LX node to reduce EMI without degrading efficiency or output ripple.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±1% (guaranteed over -40°C to +85°C) |
| Input Voltage Range | 0.8V to 5.5V - supports single alkaline/NiMH or Li+ cell operation |
| Quiescent Supply Current | 1.5μA into OUT - enables >90% light-load efficiency in battery-critical systems |
| Shutdown Current | 0.01μA into BATT at +25°C - extends shelf life in always-off standby modes |
| Startup Input Voltage | 0.91V minimum at +25°C - ensures reliable wake-up from deeply discharged batteries |
| Output Current Capability | Up to 150mA at VOUT = 5.0V and VIN ≥ 2.0V - sufficient for RF transceivers and sensor interfaces |
| Package | 5-pin TSOT (0.9mm height) - footprint-compatible with space-constrained wearables and IoT sensors |
Pinout & Package
MAX1724EZK50-T is housed in a 5-pin Thin SOT (TSOT) package with 0.65mm pitch and 0.9mm typical height, optimized for high-density PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BATT | Battery input and damping switch connection | Primary power source input; powers startup circuit and enables 0.91V cold-start capability |
| SHDN | Active-low shutdown control | Drives low to reduce supply current to 0.01μA; accepts logic-high up to 6V independent of BATT/OUT |
| GND | Analog and power ground reference | Common return path for feedback, switching, and shutdown circuits; requires low-impedance layout |
| OUT | Regulated power output and bootstrap supply | Delivers 5.0V to load; also supplies internal bias voltage for gate drivers and control logic |
| LX | Switch node connecting internal N-FET drain and P-FET drain | Connects to external inductor; internal damping switch reduces ringing-induced EMI at this node |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode - reduces BOM count, board area, and conduction losses |
| Internal EMI suppression | Damping switch at LX node cuts inductor ringing - lowers radiated emissions without added filtering |
| Ultra-low quiescent current | 1.5μA supply current into OUT - preserves battery energy during idle periods in intermittent-use devices |
| Guaranteed low-voltage startup | 0.91V minimum input at +25°C - enables operation from near-dead alkaline or NiMH cells |
| Fixed 5.0V output | ±1% accuracy over temperature - eliminates need for external feedback resistors and associated layout sensitivity |
Applications
| Remote Wireless Transmitters | Personal Medical Devices |
|---|---|
|
Use Scenario: Battery-powered sub-GHz ISM band transmitters operating intermittently for sensor telemetry. IC Role / Device Role / Timing Role: Step-up regulator supplying stable 5.0V to RF power amplifier and microcontroller during burst transmission. Use Value: 0.91V startup and 1.5μA quiescent current extend usable battery life by enabling operation down to 0.9V cell voltage and minimizing standby drain. |
Use Scenario: Portable glucose meters and pulse oximeters powered by single AAA alkaline cells. IC Role / Device Role / Timing Role: Primary voltage rail generator converting 0.8–1.5V battery output to regulated 5.0V for analog front-end and display driver. Use Value: Fixed 5.0V output with ±1% accuracy ensures consistent ADC reference and LED brightness without calibration overhead. |
| Digital Still Cameras | Low-Power Hand-Held Instruments |
|
Use Scenario: Compact digital cameras using single-cell batteries to power flash LED drivers and image sensor interfaces. IC Role / Device Role / Timing Role: High-efficiency boost converter delivering 5.0V to white LED flash array with fast transient response. Use Value: Up to 150mA output current supports brief high-current flash pulses while maintaining >90% efficiency across 1.0–2.5V input range. |
Use Scenario: Portable multimeters and environmental sensors requiring long shelf life and reliable wake-up from deep sleep. IC Role / Device Role / Timing Role: Always-on power management IC providing 5.0V rail to real-time clock and wake-up controller. Use Value: 0.01μA shutdown current into BATT prevents measurable battery depletion during multi-year storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61200DRCR | Adjustable output (1.2–5.5V); higher 2.5μA quiescent current; no internal EMI damping switch | Requires external feedback resistors; less suitable for EMI-sensitive RF modules | Select when adjustable output or higher output current (up to 300mA) is required, and EMI suppression is handled externally |
| SP6650ES-L/TR | Fixed 5.0V output; 2.0μA quiescent current; no shutdown pin; 1.0V minimum startup voltage | Lacks active shutdown control; not suitable for systems requiring zero-drain deep-sleep states | Choose for cost-sensitive designs where shutdown functionality is unnecessary and 1.0V startup suffices |
Compared with TPS61200DRCR and SP6650ES-L/TR, the MAX1724EZK50-T uniquely combines fixed 5.0V precision, 0.91V startup, and integrated EMI damping-making it optimal for compact, battery-constrained RF and medical devices demanding lowest possible system-level standby power and emissions compliance.
Availability
MAX1724EZK50-T is available at Aetrix Electronics and suitable for remote wireless transmitters, personal medical devices, and low-power hand-held instruments requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX1724EZK50-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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management solutions for industrial, medical, and consumer applications.
The MAX1722/MAX1723/MAX1724 family was designed specifically for ultra-low-power, single-cell battery-powered systems where minimal quiescent current, small footprint, and reliable low-voltage startup are critical design constraints.
FAQ
What is the guaranteed minimum startup voltage for MAX1724EZK50-T?
The MAX1724EZK50-T guarantees startup at 0.91V input voltage at +25°C with no load, enabled by its dedicated BATT-powered startup circuit. This specification holds across the full -40°C to +85°C operating temperature range, though minimum startup voltage rises slightly at temperature extremes - e.g., ~0.95V at -40°C and ~0.93V at +85°C per typical characteristics.
Does MAX1724EZK50-T require an external Schottky diode?
No, the MAX1724EZK50-T does not require an external Schottky diode. It integrates a synchronous rectifier using an internal P-channel MOSFET, eliminating conduction losses and board space typically needed for discrete diodes. This architecture directly contributes to its 90% peak efficiency and 1.5μA quiescent current performance.
What is the shutdown current specification for MAX1724EZK50-T?
The MAX1724EZK50-T draws only 0.01μA into the BATT pin at +25°C when the SHDN pin is driven low, dropping to <0.1μA at +85°C. This ultra-low shutdown current is critical for applications requiring multi-year shelf life or extended deep-sleep intervals, such as wireless sensor nodes and portable diagnostic tools.
Is MAX1724EZK50-T pin-compatible with other variants in the MAX172x family?
Yes, the MAX1724EZK50-T shares identical 5-pin TSOT pinout with all MAX1722/MAX1723/MAX1724 variants in the same package type (e.g., MAX1724EZK33-T, MAX1722EZK-T). Pin functions - BATT, SHDN, GND, OUT, LX - are fully consistent across the family, enabling drop-in replacement when output voltage and feature set align.
What package type and dimensions does MAX1724EZK50-T use?
The MAX1724EZK50-T uses a 5-pin Thin SOT (TSOT) package with 0.65mm lead pitch and 0.9mm typical height. Its outline matches JEDEC MO-178AA, and the land pattern corresponds to Maxim's recommended footprint 90-0241 - supporting automated assembly and high-density routing in space-constrained portable electronics.
MAX1724EZK50-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 400mA (Switch)
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
MAX1724EZK50-T FAQ
1.How can I place an order for MAX1724EZK50-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1724EZK50-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 MAX1724EZK50-T reliable?
The price and inventory of MAX1724EZK50-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1724EZK50-T is usually 5 days.
3.What payment methods are accepted for MAX1724EZK50-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1724EZK50-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1724EZK50-T?
MAX1724EZK50-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1724EZK50-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 MAX1724EZK50-T?
For technical support, including MAX1724EZK50-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1724EZK50-T requirements.
6.How does Aetrix verify that MAX1724EZK50-T is sourced from the original manufacturer or authorized distributors?
All MAX1724EZK50-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 MAX1724EZK50-T meets industry standards.
7.What is the process for return or replacement of MAX1724EZK50-T?
All MAX1724EZK50-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1724EZK50-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 MAX1724EZK50-T part is unused and in its original packaging.
Return procedure for MAX1724EZK50-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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