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Analog Devices Inc./Maxim Integrated MAX1832EUT#G16
- Part No.:
- MAX1832EUT#G16
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6
- Datasheet:
-
MAX1832EUT#G16.pdf
- Description:
- IC REG BOOST ADJ 150MA SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:1,345
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Product details
Overview
The MAX1832EUT#G16 from Maxim Integrated is an adjustable-output, high-efficiency step-up DC-DC converter with reverse battery protection, synchronous rectification, 4µA quiescent current, and operation from +1.5V to +5.5V input. It delivers up to 150mA output current and connects BATT to OUT in shutdown for backup power-ideal for medical diagnostic equipment and handheld instruments using two alkaline or single Li+ cells.
For engineers reviewing the MAX1832EUT#G16 datasheet, MAX1832EUT#G16 pinout, MAX1832EUT#G16 application, or MAX1832EUT#G16 equivalent, key selection criteria include its adjustable 2V–5.5V output, ultra-low shutdown current (<1µA), integrated P-channel synchronous rectifier, reverse-battery protected SHDN/BATT/LX pins, and SOT23-6 package compatibility with space-constrained portable designs.
Technical Context
The MAX1832EUT#G16 uses a current-limited, oscillator-free control scheme with 5µs maximum switch on-time and zero-crossing detection to regulate output voltage via external FB resistor divider. Its internal N-channel switch (0.5Ω typical RDS(ON)) and P-channel synchronous rectifier eliminate external diode requirements while enabling >90% efficiency at 40mA load.
Reverse battery protection is implemented via a dedicated N-channel MOSFET that opens under reversed polarity, isolating BATT from LX, OUT, and GND. In shutdown, the internal P-FET connects BATT directly to OUT through the inductor-enabling true backup power without body-diode voltage drop-unlike MAX1834/MAX1835 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | Adjustable 2.0V to 5.5V via FB resistor divider-supports system-level voltage scaling across diverse logic families. |
| Input Voltage Range | +1.5V to +5.5V-enables direct operation from 2× alkaline/NiMH or 1× Li+ cell without pre-regulation. |
| Max Output Current | 150mA at VBATT = +2V, VOUT = +3.3V-sufficient for powering microcontrollers, sensors, and RF transceivers in portable devices. |
| Quiescent Current | 4µA typical-minimizes battery drain during light-load operation, extending runtime in always-on monitoring applications. |
| Shutdown Current | <1µA into OUT-ensures negligible self-discharge when disabled, critical for long-term backup functionality. |
| Efficiency | 90% at VBATT = +2V, VOUT = +3.3V, ILOAD = 40mA-reduces thermal stress and extends battery life versus diode-based boost converters. |
| FB Reference Voltage | 1.228V ±24mV over temperature-provides stable feedback threshold for accurate output regulation with standard resistor tolerances. |
Pinout & Package
The MAX1832EUT#G16 is housed in a 6-pin SOT23-6 package (JEDEC MO-178AA) with 1.3mm height, 2.9mm × 1.6mm footprint, and exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SHDN | Active-high enable with reverse-battery protection and low-battery cutoff threshold | Drives device ON/OFF; 1.228V rising-edge threshold enables battery voltage monitoring without external comparator. |
| 2 - BATT | Input battery connection with reverse-polarity blocking | Protected by internal N-MOSFET; conducts only when battery is correctly oriented-prevents damage to IC and downstream circuitry. |
| 3 - GND | Power and signal reference ground | Must be tied to low-impedance ground plane within 5mm of input/output capacitors to minimize noise and ground bounce. |
| 4 - LX | Switch node connecting internal N-MOSFET drain and synchronous P-MOSFET drain | Requires short, low-inductance trace to external inductor; reverse-battery protected to prevent latch-up during polarity reversal. |
| 5 - OUT | Regulated output voltage and bootstrap supply | Provides power to internal circuitry; connected directly to BATT in shutdown for zero-drop backup power path. |
| 6 - FB | Feedback input for adjustable output voltage configuration | Accepts resistor-divider network; 20nA max input bias enables use of high-value resistors to reduce quiescent current. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous rectification | Eliminates external Schottky diode-reducing board area by ≥20% and improving efficiency by 5–10% over asynchronous designs. |
| Reverse battery protection | Proprietary N-MOSFET gate control blocks reverse current at BATT, LX, and SHDN-protecting IC, battery, and load without external FETs or diodes. |
| BATT-to-OUT connection in shutdown | Enables seamless backup power for RTC/SRAM without voltage drop-critical for systems requiring uninterrupted timekeeping or state retention. |
| Ultra-low quiescent current | 4µA operation supports >1-year battery life in low-duty-cycle sensor nodes powered by two AA cells. |
| Current-limited control architecture | No oscillator required-reduces EMI and enables deterministic startup timing independent of input voltage or load conditions. |
Applications
| Medical Diagnostic Equipment | Pagers |
|---|---|
Use Scenario: Portable glucose meters and handheld ultrasound probes requiring stable 3.3V/5V rail from disposable alkaline batteries. IC Role / Device Role / Timing Role: Step-up regulator providing regulated output while maintaining ultra-low standby current between measurements. Use Value: Enables >2000 measurements per battery set via 4µA quiescent current and reverse-battery safety during field battery swaps. | Use Scenario: Two-way pagers with LED backlight and RF receiver operating from 2× AA cells. IC Role / Device Role / Timing Role: Adjustable-output boost converter delivering 5V for display driver and 3.3V for baseband processor via dual-resistor feedback. Use Value: Single IC replaces multiple fixed-output regulators-reducing BOM count and PCB area in tight form factors. |
| Hand-Held Instruments | Battery Backup |
Use Scenario: Digital multimeters and thermal imagers needing isolated 5V analog supply and 3.3V digital core voltage. IC Role / Device Role / Timing Role: Primary DC-DC converter with shutdown-controlled backup path to preserve calibration data during main power loss. Use Value: Eliminates need for separate backup diode and capacitor-cutting component count and leakage paths in precision measurement circuits. | Use Scenario: Real-time clock modules in industrial controllers requiring continuous timekeeping during AC power failure. IC Role / Device Role / Timing Role: Backup power switch connecting main battery directly to RTC VCC pin when main converter is disabled. Use Value: Zero forward-voltage drop backup path extends RTC runtime by 30–50% versus diode-isolated solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1834EUT#T | Same SOT23-6 package and adjustable output range, but disconnects BATT from OUT in shutdown (no backup path). | Lacks BATT→OUT conduction-unsuitable for RTC backup; better for systems requiring strict isolation during shutdown. | Select MAX1834EUT#T only if backup power is unnecessary and shutdown leakage must be minimized below 100nA. |
| TPS61022DSQR | Fixed 3.3V output, 2.05V min input, 1.2A switch current, no reverse-battery protection, 1.2mm × 1.6mm DFN package. | Higher output current but no polarity reversal safety-requires external protection circuitry in battery-reversal-prone environments. | Choose TPS61022DSQR for higher-power applications where reverse-battery risk is mitigated by mechanical design or external FETs. |
Compared with MAX1834EUT#T and TPS61022DSQR, the MAX1832EUT#G16 uniquely combines adjustable output, ultra-low quiescent current, and integrated reverse-battery protection with a true zero-drop backup path-making it optimal for safety-critical, battery-powered instrumentation where reliability and runtime are co-prioritized.
Availability
MAX1832EUT#G16 is available at Aetrix Electronics and suitable for medical diagnostic equipment, handheld instruments, and battery backup systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for MAX1832EUT#G16 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 ICs for industrial, medical, and consumer applications.
The MAX1832EUT#G16 belongs to Maxim's high-efficiency, reverse-protection boost converter family designed specifically for space-constrained, battery-powered portable electronics requiring robust fault tolerance and extended operational lifetime.
FAQ
What is the output voltage range of the MAX1832EUT#G16?
The MAX1832EUT#G16 features an adjustable output voltage range from +2.0V to +5.5V, set externally via a resistor divider connected to the FB pin. Its 1.228V feedback reference voltage enables precise regulation across this range using standard 1% resistors, making the MAX1832EUT#G16 suitable for powering diverse logic families and analog subsystems from a single battery source.
Does the MAX1832EUT#G16 provide reverse battery protection?
Yes, the MAX1832EUT#G16 incorporates proprietary reverse battery protection on the BATT, SHDN, and LX pins. When input polarity is reversed, an internal N-channel MOSFET blocks current flow-preventing damage to the IC, battery, and downstream circuitry without requiring external components. This protection is confirmed in the Absolute Maximum Ratings and Functional Diagram sections of the official datasheet for the MAX1832EUT#G16.
How does the MAX1832EUT#G16 behave in shutdown mode?
In shutdown mode (SHDN = low), the MAX1832EUT#G16 disables switching and connects the BATT input directly to the OUT pin through the internal P-channel MOSFET and external inductor-enabling zero-forward-drop backup power for RTCs or SRAM. This behavior is unique to the MAX1832/MAX1833 variants and is explicitly documented in the Selector Guide and Detailed Description sections for the MAX1832EUT#G16.
What is the quiescent current specification for the MAX1832EUT#G16?
The MAX1832EUT#G16 draws 4µA typical quiescent current during normal operation, as specified in the Electrical Characteristics table under "Quiescent Current into OUT" at TA = +25°C. This ultra-low value ensures minimal battery drain in standby, supporting multi-year operation in low-duty-cycle applications such as remote sensors and portable diagnostics-key performance data confirmed for the MAX1832EUT#G16 in its official datasheet.
Which package type is used for the MAX1832EUT#G16?
The MAX1832EUT#G16 is supplied in a 6-pin SOT23-6 package (JEDEC MO-178AA), measuring 2.9mm × 1.6mm with 1.3mm height. This miniature outline is verified in the Ordering Information table and Package Information section of the MAX1832EUT#G16 datasheet, and matches the top mark "AAOT" listed for this specific variant.
MAX1832EUT#G16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 150mA
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX1832EUT#G16 FAQ
1.How can I place an order for MAX1832EUT#G16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1832EUT#G16 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 MAX1832EUT#G16 reliable?
The price and inventory of MAX1832EUT#G16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1832EUT#G16 is usually 5 days.
3.What payment methods are accepted for MAX1832EUT#G16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1832EUT#G16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1832EUT#G16?
MAX1832EUT#G16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1832EUT#G16 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 MAX1832EUT#G16?
For technical support, including MAX1832EUT#G16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1832EUT#G16 requirements.
6.How does Aetrix verify that MAX1832EUT#G16 is sourced from the original manufacturer or authorized distributors?
All MAX1832EUT#G16 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 MAX1832EUT#G16 meets industry standards.
7.What is the process for return or replacement of MAX1832EUT#G16?
All MAX1832EUT#G16 units undergo pre-shipment inspection (PSI). If there is an issue with MAX1832EUT#G16, 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 MAX1832EUT#G16 part is unused and in its original packaging.
Return procedure for MAX1832EUT#G16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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