My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1832EUT+T
- Part No.:
- MAX1832EUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6
- Datasheet:
-
MAX1832EUT+T.pdf
- Description:
- IC REG BOOST ADJ 150MA SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:4,999
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX1832EUT+T from Maxim Integrated is an adjustable-output, high-efficiency step-up DC-DC converter with reverse battery protection, synchronous rectification, and shutdown-controlled battery-to-output pass-through functionality. It operates from +1.5V to +5.5V input, delivers up to 150mA load current, achieves ≥90% efficiency at 40mA, and features 4μA quiescent current - enabling use in battery-backed real-time clocks and low-power portable medical instruments.
For engineers reviewing the MAX1832EUT+T datasheet, MAX1832EUT+T pinout, MAX1832EUT+T application, or MAX1832EUT+T equivalent, key selection considerations include its adjustable 2.0V–5.5V output range, SOT23-6 package footprint, 1.228V SHDN threshold for low-battery cutoff, and BATT-to-OUT conduction path in shutdown mode - critical for backup power integrity without external diodes.
Technical Context
The MAX1832EUT+T uses a current-limited, oscillatorless control scheme with fixed 5µs maximum on-time and N-channel switch current limiting (435–615mA). Its internal synchronous rectifier replaces the external Schottky diode by activating a P-channel MOSFET during inductor discharge, reducing forward voltage drop and improving efficiency across light-to-moderate loads.
Reverse battery protection is implemented via a proprietary N-channel MOSFET gate control that disconnects BATT from LX and OUT when input polarity is inverted - protecting both IC and downstream circuitry without external components. In shutdown, the internal PFET connects BATT directly to OUT through the inductor, enabling zero-drop backup supply for RTC or SRAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | Adjustable 2.0V to 5.5V - set via external resistor divider on FB pin; enables single design to support multiple system rail requirements. |
| Input Voltage Range | +1.5V to +5.5V - supports two alkaline/NiMH cells or one Li+ cell without under-voltage lockout issues. |
| Max Output Current | 150mA at VBATT = +2V, VOUT = +3.3V - sufficient for powering microcontrollers, sensors, and RF transceivers in handheld devices. |
| Efficiency | ≥90% at 40mA load, VBATT = +2V, VOUT = +3.3V - minimizes thermal rise and extends battery life in space-constrained applications. |
| Quiescent Current | 4μA typical - ensures ultra-low standby power draw, critical for multi-year battery operation in remote sensors. |
| Shutdown Supply Current | <1μA - reduces battery drain to negligible levels during extended sleep or storage modes. |
| SHDN Threshold | 1.228V (typ), ±0.058V over -40°C to +85°C - provides precise low-battery cutoff when used with resistor divider. |
| Package | SOT23-6 (6-pin) - 2.9mm × 1.6mm footprint compatible with standard pick-and-place and reflow processes. |
Pinout & Package
MAX1832EUT+T is housed in a miniature 6-pin SOT23-6 package (top mark: AAOT), with exposed pad not electrically connected. The package supports standard surface-mount assembly and meets RoHS compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SHDN | Active-high enable input with reverse battery protection | Drives device ON/OFF; 1.228V threshold enables low-battery detection; connects to OUT in unused state; sinks <100nA bias current. |
| 2 - BATT | Battery input with integrated reverse-polarity protection | Accepts +1.5V to +5.5V; internal N-MOSFET blocks reverse current (<10µA leakage at -3V); connects to OUT via PFET in shutdown. |
| 3 - GND | Power and signal reference ground | Must be tied to low-impedance ground plane; shortest possible trace to CIN/COUT grounds to minimize noise and ground bounce. |
| 4 - LX | Switch node connecting internal N-MOSFET drain and synchronous rectifier | Drives external inductor; rated for -6V to +6V absolute max; requires short, low-inductance layout to reduce EMI and switching losses. |
| 5 - OUT | Regulated output and bootstrap supply | Delivers up to 150mA; supplies internal circuitry; serves as reference for SHDN and RST (if present); no RST pin on MAX1832EUT+T. |
| 6 - FB | Feedback input for adjustable output voltage | Monitors output via resistor divider; 1.228V trip point; 20nA max input bias enables high-value resistors (100kΩ–1MΩ) to minimize battery drain. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous rectifier | Eliminates need for external Schottky diode, reducing board area by ~1.5mm² and improving efficiency by 5–10% vs. asynchronous designs. |
| Reverse battery protection | Proprietary N-MOSFET gate control blocks reverse current at BATT pin (<10µA leakage), protecting IC, battery, and load without external FETs or diodes. |
| BATT-to-OUT pass-through in shutdown | Internal PFET connects battery directly to output during SHDN = low, enabling zero-forward-drop backup power for RTC/SRAM without external diode. |
| Ultra-low quiescent current | 4μA typical supply current into OUT allows >10-year battery life in always-on monitoring applications powered by coin cells. |
| Adjustable output with precision feedback | 1.228V ±1.6% FB reference enables accurate 2.0V–5.5V output setting using standard 1% resistors; supports dynamic rail scaling. |
Applications
| Medical Diagnostic Handhelds | Remote Wireless Sensor Transmitters |
|---|---|
|
Use Scenario: Portable glucose meters and pulse oximeters powered by two AA alkaline cells requiring stable 3.3V for MCU and analog front-end. IC Role / Device Role / Timing Role: Step-up regulator providing regulated 3.3V output from decaying battery voltage (1.5V–3.0V), with reverse polarity protection against user-insertion errors. Use Value: Eliminates risk of field failure due to reversed batteries; maintains regulation down to 1.5V input; 4μA quiescent current extends battery life beyond 2 years. |
Use Scenario: Battery-powered LoRaWAN soil moisture sensor operating in remote agricultural fields with 10+ year deployment target. IC Role / Device Role / Timing Role: Adjustable-output boost converter supplying 3.6V to RF transceiver during brief transmission bursts, then dropping to 2.5V for ultra-low-power sleep mode. Use Value: Single IC supports dual-rail operation via FB divider; <1μA shutdown current prevents measurable battery depletion during 99.9% duty-cycle sleep. |
| Digital Camera Backlight Power | PC Card Local 5V Supply |
|
Use Scenario: Compact digital camera using white LED array requiring 5.0V from single Li+ cell (2.7V–4.2V). IC Role / Device Role / Timing Role: Adjustable boost converter generating precise 5.0V for LED driver IC, dynamically compensating for battery voltage sag during flash operation. Use Value: 150mA output capability sustains peak LED current; 90% efficiency minimizes heat near optical module; SOT23-6 fits tight PCB real estate. |
Use Scenario: PCMCIA-based industrial data logger needing isolated 5.0V rail from 3.3V host bus, with reverse insertion protection. IC Role / Device Role / Timing Role: Step-up converter generating local 5.0V supply for ADC and interface logic, immune to accidental reverse-card insertion. Use Value: Built-in reverse battery protection eliminates need for series diode or external protection IC, saving cost and forward voltage drop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61200DRCT | Fixed 3.3V/5.0V output only; no adjustable option; 2.5μA quiescent current; no BATT-to-OUT pass-through in shutdown. | Lacks backup power path; suitable only where fixed output suffices and RTC backup is handled externally. | Select TPS61200DRCT if fixed 3.3V/5.0V output and lower IQ are priorities, and BATT-to-OUT conduction is unnecessary. |
| LT1944ES5#TRMPBF | Adjustable 2.5V–5.5V output; 20μA quiescent current; no reverse battery protection; requires external Schottky diode. | Higher standby power; needs external protection circuitry for reverse polarity; larger solution size. | Choose LT1944ES5#TRMPBF only if legacy design reuse mandates Linear Tech compatibility and reverse protection is added externally. |
Compared with TPS61200DRCT and LT1944ES5#TRMPBF, the MAX1832EUT+T uniquely combines adjustable output, integrated reverse battery protection, and BATT-to-OUT pass-through - delivering a complete, space-optimized solution for battery-critical portable systems where reliability and backup integrity are non-negotiable.
Availability
MAX1832EUT+T is available at Aetrix Electronics and suitable for medical diagnostic handhelds, remote wireless transmitters, digital camera backlight systems, PC card local 5V supplies, and battery-backed RTC modules requiring stable component supply across long production lifecycles.
Supply support for MAX1832EUT+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 ICs for industrial, medical, and communications applications.
The MAX1832EUT+T belongs to the MAX183x family of high-efficiency step-up converters designed specifically for space-constrained, battery-powered systems requiring reverse polarity immunity and ultra-low quiescent power.
FAQ
What output voltage range does the MAX1832EUT+T support?
The MAX1832EUT+T supports an adjustable output voltage range of +2.0V to +5.5V, set via an external resistor divider connected to the FB pin. Its 1.228V feedback reference enables precise output programming using standard 1% resistors, and the MAX1832EUT+T maintains regulation across the full input range of +1.5V to +5.5V.
How does the MAX1832EUT+T provide reverse battery protection?
The MAX1832EUT+T implements reverse battery protection using an internal N-channel MOSFET controlled by proprietary gate logic. When BATT is connected with negative polarity, the MOSFET remains off, blocking current flow into the IC and load - limiting reverse current to <10µA. This eliminates the need for external protection diodes or FETs while preserving efficiency and board space.
Does the MAX1832EUT+T have a power-on reset (RST) output?
No, the MAX1832EUT+T does not include an RST output. That feature is exclusive to the MAX1833EUT+T and MAX1835EUT+T variants. The MAX1832EUT+T pinout omits the RST function entirely - pin 6 is dedicated to FB (feedback) only, consistent with its role as the adjustable-output member of the family.
What happens to the output during shutdown of the MAX1832EUT+T?
During shutdown (SHDN = low), the MAX1832EUT+T activates an internal P-channel MOSFET that connects the BATT pin directly to the OUT pin through the external inductor. This creates a zero-forward-drop path, allowing the input battery to power external circuitry such as RTCs or SRAM without voltage loss - a key differentiator versus boost converters lacking this pass-through capability.
What is the maximum load current the MAX1832EUT+T can deliver?
The MAX1832EUT+T delivers up to 150mA of continuous output current when configured with VBATT = +2V and VOUT = +3.3V. Output current capability scales with input voltage - e.g., up to ~250mA at VBATT = +3.3V - and is limited by internal N-MOSFET current limit (435–615mA) and thermal constraints of the SOT23-6 package.
MAX1832EUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- 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):
- 1.5V
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX1832EUT+T FAQ
1.How can I place an order for MAX1832EUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1832EUT+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 MAX1832EUT+T reliable?
The price and inventory of MAX1832EUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1832EUT+T is usually 5 days.
3.What payment methods are accepted for MAX1832EUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1832EUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1832EUT+T?
MAX1832EUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1832EUT+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 MAX1832EUT+T?
For technical support, including MAX1832EUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1832EUT+T requirements.
6.How does Aetrix verify that MAX1832EUT+T is sourced from the original manufacturer or authorized distributors?
All MAX1832EUT+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 MAX1832EUT+T meets industry standards.
7.What is the process for return or replacement of MAX1832EUT+T?
All MAX1832EUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1832EUT+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 MAX1832EUT+T part is unused and in its original packaging.
Return procedure for MAX1832EUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1832EUT+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…
