My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1724ELT30+T
- Part No.:
- MAX1724ELT30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-WDFN
- Datasheet:
-
MAX1724ELT30+T.pdf
- Description:
- IC REG BOOST 3V 400MA 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,964
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX1724ELT30+T from Maxim Integrated is a fixed-output 3.0V, high-efficiency step-up DC-DC converter in a 6-pin µDFN package (2mm × 2mm × 0.75mm), featuring 1.5μA quiescent current, 0.91V guaranteed startup, ±1% output voltage accuracy over temperature, and integrated synchronous rectification. It is designed for ultra-low-power, single-cell battery-powered systems such as remote transmitters and medical sensors where minimal standby drain and compact footprint are critical.
For engineers reviewing the MAX1724ELT30+T datasheet, MAX1724ELT30+T pinout, MAX1724ELT30+T application, or MAX1724ELT30+T equivalent, key selection considerations include its fixed 3.0V output, 0.1μA shutdown current, internal EMI suppression, TSOT/µDFN package compatibility, and operation down to 0.8V input - all validated for use in space-constrained, battery-life-sensitive designs.
Technical Context
The MAX1724ELT30+T employs a forced discontinuous, current-limited pulse-frequency-modulation (PFM) control scheme with no external oscillator, enabling ultra-low quiescent current and wide-load-range efficiency. Its internal N-channel power switch (RDS(ON) = 0.5Ω typ) and P-channel synchronous rectifier eliminate the need for an external Schottky diode while reducing conduction losses.
A dedicated low-voltage startup circuit powered from the BATT pin guarantees operation from as low as 0.91V input, and an integrated damping switch suppresses LX node ringing to reduce EMI without compromising efficiency. The device operates across –40°C to +85°C and supports up to 150mA output current at 3.0V with 90% peak efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1% (2.925V–3.075V over –40°C to +85°C); enables direct replacement of LDOs in 3.0V rail systems without feedback divider. |
| Input Voltage Range | 0.8V to 5.5V; supports single alkaline/NiMH (0.91V startup) or Li⁺ cells without external boost staging. |
| Quiescent Current | 1.5μA into OUT (typ); minimizes battery drain in always-on sensor nodes and remote controls. |
| Shutdown Current | 0.001μA to 0.5μA into BATT (typ 0.01μA at +25°C); extends shelf life and enables deep-sleep modes. |
| Efficiency | Up to 90% at 50mA load (VIN = 1.5V → VOUT = 3.0V); reduces thermal stress and extends runtime in compact enclosures. |
| Package | 6-pin µDFN (2mm × 2mm × 0.75mm); enables PCB area reduction vs. TSOT and simplifies high-density layout. |
| Startup Voltage | 0.91V (typ) at +25°C with no load; ensures reliable wake-up from deeply discharged batteries. |
Pinout & Package
MAX1724ELT30+T is housed in a RoHS-compliant, lead(Pb)-free 6-pin µDFN package (outline 21-0164, land pattern 90-0004), measuring 2.0mm × 2.0mm × 0.75mm with exposed thermal pad. The package supports reflow soldering at +260°C (lead-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BATT | Battery input and damping switch connection | Primary power entry point; powers startup circuitry and enables EMI suppression via internal damping switch. |
| SHDN | Active-low shutdown control input | Drives IC into ultra-low-current shutdown (≤0.5μA) when pulled below 75mV; tolerates up to 6V logic levels. |
| GND | Power and signal reference ground | Must be connected to low-impedance ground plane within 5mm of CIN/COUT to minimize noise and ground bounce. |
| FB | Feedback input (not used on MAX1724) | No-connect on MAX1724ELT30+T; left floating or grounded per layout best practice - not tied to OUT. |
| OUT | Regulated power output and bootstrap supply | Delivers up to 150mA at 3.0V; also supplies internal bias for gate drivers - requires low-ESR ceramic capacitor (≥10μF). |
| LX | Switch node (N-MOSFET drain / P-MOSFET drain) | Connects to external 10μH inductor; high dv/dt node requiring shortest possible trace to minimize EMI radiation. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, reducing BOM count, board area, and forward-drop losses by ~0.3V. |
| Integrated EMI suppression | Damping switch clamps LX ringing, lowering radiated emissions without adding components or degrading efficiency. |
| Ultra-low startup voltage | 0.91V minimum input enables operation from near-dead alkaline/NiMH cells - critical for long-life remote devices. |
| Fixed 3.0V output | ±1% accuracy over full temperature range eliminates need for external resistor network and calibration effort. |
| 0.1μA shutdown current | Extends battery shelf life beyond 10 years in storage for medical or IoT edge nodes with infrequent wake-ups. |
Applications
| Remote Wireless Transmitters | Pagers |
|---|---|
Use Scenario: Battery-powered sub-GHz ISM band transmitters sending periodic telemetry from industrial sensors. IC Role / Device Role / Timing Role: Primary voltage booster supplying stable 3.0V to RF power amplifier and MCU during burst transmission. Use Value: 1.5μA quiescent current extends 2xAA battery life to >5 years; 0.91V startup ensures operation until battery reaches 0.85V. |
Use Scenario: Legacy two-way pagers operating on single alkaline cell with intermittent alert bursts. IC Role / Device Role / Timing Role: Step-up regulator powering display driver and audio alert circuit from declining battery voltage. Use Value: Fixed 3.0V output eliminates feedback tuning; µDFN footprint allows integration into slim pager chassis under 8mm height. |
| Personal Medical Devices | Low-Power Hand-Held Instruments |
Use Scenario: Portable blood glucose meters requiring accurate analog front-end bias from single AAA cell. IC Role / Device Role / Timing Role: Precision 3.0V rail generator for ADC reference and op-amp biasing with minimal load regulation error. Use Value: ±1% output accuracy ensures consistent measurement linearity; 90% efficiency prevents thermal drift in handheld enclosure. |
Use Scenario: Pocket-sized multimeters and environmental sensors powered by one AA cell. IC Role / Device Role / Timing Role: Main power supply for microcontroller, LCD, and sensing peripherals during active measurement cycles. Use Value: Shutdown current ≤0.5μA enables >10-year shelf life; TSOT/µDFN compatibility supports both cost-optimized and miniaturized variants. |
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 |
|---|---|---|---|
| MAX1724ELT33+T | Fixed 3.3V output; identical package, pinout, and electrical specs except VOUT. | Used where system requires 3.3V logic rail instead of 3.0V; not interchangeable without verifying downstream voltage tolerance. | Select MAX1724ELT33+T only if target load accepts 3.3V nominal with ±1% variation; otherwise MAX1724ELT30+T remains optimal. |
| Texas Instruments TPS61200DRCT | Adjustable output (1.5V–5.5V), 2.5μA IQ, 0.3V startup, 5-pin TSOT23; lacks integrated EMI damping. | Offers flexibility for multi-rail designs but requires external feedback resistors and yields higher EMI in sensitive RF environments. | Choose TPS61200DRCT when adjustable output or lower-cost TSOT23 assembly is prioritized over EMI performance and lowest IQ. |
Compared with MAX1724ELT30+T, MAX1724ELT33+T provides identical form-factor and efficiency but targets 3.3V systems, while TPS61200DRCT trades fixed-output precision and EMI suppression for design flexibility and broader output range - making MAX1724ELT30+T the preferred choice for space-constrained, ultra-low-IQ, EMI-sensitive 3.0V applications.
Availability
MAX1724ELT30+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, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX1724ELT30+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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and consumer applications.
The MAX1722/MAX1723/MAX1724 family was engineered specifically for ultra-low-power, single-cell battery systems demanding minimal quiescent current, small footprint, and robust startup behavior - addressing design constraints in portable and wearable electronics.
FAQ
What is the guaranteed minimum startup voltage for MAX1724ELT30+T?
The MAX1724ELT30+T guarantees startup at 0.91V (typical) at +25°C with no load, and maintains functionality down to 0.83V minimum across temperature. This is enabled by a dedicated BATT-powered startup circuit, allowing reliable operation from nearly depleted alkaline or NiMH cells - a key differentiator versus competing boost converters lacking this feature.
Does MAX1724ELT30+T require external feedback resistors?
No, MAX1724ELT30+T does not require external feedback resistors. As a fixed-output variant, its 3.0V regulation is implemented internally; the FB pin is unused and must be left floating or grounded per layout guidelines. This eliminates resistor tolerance errors and saves PCB space - unlike the adjustable MAX1722/MAX1723 versions which require R1/R2 networks.
What package type and dimensions does MAX1724ELT30+T use?
MAX1724ELT30+T uses a 6-pin µDFN package (2.0mm × 2.0mm × 0.75mm, outline 21-0164) with exposed thermal pad. It is RoHS-compliant and lead(Pb)-free, rated for +260°C reflow. This compact footprint delivers superior thermal performance and board-area savings compared to the 5-pin TSOT variant, especially in high-density portable designs.
How does the internal EMI suppression work in MAX1724ELT30+T?
MAX1724ELT30+T integrates a damping switch connected between BATT and LX that activates during inductor flyback to dissipate resonant energy, suppressing high-frequency ringing at the LX node. This reduces radiated EMI without adding external components or degrading efficiency - a feature absent in MAX1723 and most competitive boost ICs at this power level.
What is the maximum continuous output current for MAX1724ELT30+T?
MAX1724ELT30+T delivers up to 150mA continuous output current at 3.0V when VIN ≥ 1.5V and ambient temperature is ≤ +70°C. At lower input voltages (e.g., 1.2V), maximum current drops due to duty-cycle limits and efficiency roll-off - refer to Figure toc04 in the datasheet for precise IOUT(MAX) vs. VIN curves across VOUT options.
MAX1724ELT30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WDFN
- 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):
- 3V
- 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:
- 6-µDFN (2x2)
MAX1724ELT30+T FAQ
1.How can I place an order for MAX1724ELT30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1724ELT30+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 MAX1724ELT30+T reliable?
The price and inventory of MAX1724ELT30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1724ELT30+T is usually 5 days.
3.What payment methods are accepted for MAX1724ELT30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1724ELT30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1724ELT30+T?
MAX1724ELT30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1724ELT30+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 MAX1724ELT30+T?
For technical support, including MAX1724ELT30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1724ELT30+T requirements.
6.How does Aetrix verify that MAX1724ELT30+T is sourced from the original manufacturer or authorized distributors?
All MAX1724ELT30+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 MAX1724ELT30+T meets industry standards.
7.What is the process for return or replacement of MAX1724ELT30+T?
All MAX1724ELT30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1724ELT30+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 MAX1724ELT30+T part is unused and in its original packaging.
Return procedure for MAX1724ELT30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1724ELT30+T Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
