My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6329TPUT+
- Part No.:
- MAX6329TPUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6
- Datasheet:
-
MAX6329TPUT+.pdf
- Description:
- IC REG LINEAR LDO 150MA
- Quantity:
- Payment:
- Shipping:
Inventory:332
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6329TPUT+ from Maxim Integrated is a 150mA, +3.3V fixed-output low-dropout linear regulator with integrated microprocessor reset circuit, 25µA quiescent current, 180mV dropout at 100mA, and active-low open-drain RESET output. It features shutdown control (SHDN), thermal/short-circuit protection, and reverse leakage protection - designed for power management in battery-powered handheld instruments and USB devices.
For engineers reviewing the MAX6329TPUT+ datasheet, MAX6329TPUT+ pinout, MAX6329TPUT+ application, or MAX6329TPUT+ equivalent, key selection criteria include its ±3.0% output accuracy over 0°C to +85°C, 100ms minimum reset timeout, 1.23V internal SET reference, and SOT23-6 package compatibility with space-constrained portable designs.
Technical Context
The MAX6329TPUT+ integrates a P-channel MOSFET LDO regulator core with an independent reset supervisor sharing the same 1.23V reference. Its regulator operates from 2.5V to 5.5V input and delivers stable +3.3V output with preset feedback (SET = GND), while the reset circuit monitors VOUT against a -5% threshold (2.92V min) and asserts open-drain RESET for ≥100ms after recovery.
Shutdown is controlled via active-low SHDN pin, reducing supply current to ≤1µA; reverse leakage protection blocks current flow from OUT to IN when VOUT > VIN. The device requires only a 1µF ceramic output capacitor and supports full 150mA load without instability across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +3.3V fixed (±3.0% accuracy over 0°C to +85°C); set by internal divider with SET = GND |
| Max Output Current | 150mA continuous; supports full-load operation with 1µF output capacitor |
| Dropout Voltage | 180mV at 100mA load; enables operation down to VIN = 3.48V while maintaining regulation |
| Quiescent Current | 25µA typical (independent of load); critical for multi-day battery life in portable systems |
| Reset Threshold | 2.92V to 3.185V (-5% of 3.3V); ensures µP reset during brownout before supply violates tolerance |
| Reset Timeout | 100ms minimum; guarantees clock oscillator and supply stabilization before processor release |
| Shutdown Current | ≤1µA max; reduces system standby power to nanoamp-level when SHDN = low |
| Package | SOT23-6; 2.9mm × 1.6mm footprint with exposed thermal pad on GND pin |
Pinout & Package
MAX6329TPUT+ uses a 6-pin SOT23-6 package with GND serving dual role as electrical ground and thermal heatsink. Pin 2 (GND) must be soldered to a large PCB copper area or ground plane for optimal thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator input | Accepts 2.5V–5.5V supply; reverse leakage protection disables conduction if VOUT > VIN |
| 2 GND | Ground / thermal pad | Reference node for all circuits; primary heat path - requires PCB copper pour for thermal management |
| 3 SHDN | Active-low shutdown control | Pulls regulator core offline; reduces total IIN to ≤1µA; connect to IN for normal operation |
| 4 RESET | Active-low open-drain reset output | Drives low during power-up/brownout; requires external pullup; compatible with 1.8V/3.3V/5V µP reset inputs |
| 5 SET | Feedback reference input | Internally tied to 1.23V reference; grounded for +3.3V fixed mode; connects to resistor divider for adjustable outputs |
| 6 OUT | Regulated output | Delivers up to 150mA; bypassed with ≥1µF ceramic cap; short-circuit protected and thermally limited |
Key Features
| Feature | Design Value |
|---|---|
| Integrated reset supervisor | Eliminates external RC network or discrete supervisor IC; saves board space and BOM count |
| Zero reverse leakage current | Enables backup battery operation without external blocking diode; prevents discharge through IN pin |
| Thermal + short-circuit protection | Auto-recovers after cooling; sustains indefinite output short without damage; no fuse or external limiter needed |
| 1µF minimum output capacitance | Reduces solution size vs. legacy regulators requiring ≥10µF; compatible with low-ESR ceramic caps |
| 25µA supply current | Extends battery runtime in always-on monitoring functions (e.g., real-time clocks, sensor wake logic) |
| 100ms reset timeout | Meets JEDEC JESD84-B4.01 requirements for µP reset hold time; ensures reliable boot sequencing |
Applications
| Hand-Held Instruments | USB Devices |
|---|---|
|
Use Scenario: Portable multimeters and data loggers powered by single-cell Li-ion or alkaline batteries. IC Role / Device Role: Primary 3.3V power rail generator and power-on reset supervisor for MCU and ADC subsystems. Use Value: 25µA quiescent current extends battery life beyond 1 year in sleep mode; 180mV dropout allows operation until battery drops to 3.48V. |
Use Scenario: Self-powered USB peripherals (e.g., HID keyboards, audio adapters) drawing <100mA from VBUS. IC Role / Device Role: Local 3.3V regulator and reset source for USB controller IC, decoupling host VBUS noise. Use Value: Open-drain RESET interfaces directly with USB controller reset pin; 1µF output cap meets USB EMI requirements. |
| Palm Top Computers | PCMCIA Cards |
|
Use Scenario: Legacy PDAs with ARM7-based SoCs requiring clean, sequenced 3.3V supply during hot-insertion. IC Role / Device Role: System power regulator with brownout detection and controlled reset assertion during card insertion/removal. Use Value: SHDN pin enables software-controlled power gating; thermal protection prevents overheating in compact clamshell enclosures. |
Use Scenario: PCMCIA memory or modem cards operating from 3.3V VCC slot power with strict inrush limits. IC Role / Device Role: Local regulation and reset generation isolated from noisy host bus; handles transient load steps during card enumeration. Use Value: 150mA rating supports burst-mode flash programming; 100ms reset timeout satisfies PC Card Standard timing windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulator with integrated reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76333DBVR | 3.3V fixed LDO only (no reset function); 85µA IQ; 350mV dropout at 150mA; SOT23-5 package | Requires external reset IC (e.g., TPS3809) for µP supervision; adds 2–3 components and layout area | Choose when reset functionality is handled separately or when lower cost outweighs integration benefit |
| MAX809TRD2T | Dedicated reset supervisor only (no regulator); monitors 3.0V–3.3V supplies; 1.6µA IQ; SOT23-3 | Must pair with external LDO (e.g., MAX8860); increases bill-of-materials and power path complexity | Choose when existing LDO lacks reset capability and board space permits two discrete ICs |
Compared with TPS76333DBVR and MAX809TRD2T, the MAX6329TPUT+ provides single-chip power + reset integration in SOT23-6, reducing component count by ≥2, eliminating external timing capacitors, and guaranteeing synchronized reset assertion relative to regulated output stability.
Availability
MAX6329TPUT+ is available at Aetrix Electronics and suitable for hand-held instruments, USB devices, and PCMCIA cards requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX6329TPUT+ 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) designs precision analog and mixed-signal ICs for power management, sensing, and interface applications.
The MAX6329 series targets ultra-low-power, space-constrained portable electronics needing integrated regulation and reset - emphasizing micropower operation, small footprint, and robust fault protection.
FAQ
What output voltage does the MAX6329TPUT+ provide, and how is it set?
The MAX6329TPUT+ provides a fixed +3.3V output with ±3.0% accuracy over 0°C to +85°C. This is achieved by internally connecting the SET pin to the 1.23V reference; no external resistors are required. The 'T' suffix in MAX6329TPUT+ explicitly denotes the +3.3V preset version, confirmed in Maxim's Selector Guide and Electrical Characteristics table.
Does the MAX6329TPUT+ include a shutdown feature, and what is its effect?
Yes, the MAX6329TPUT+ includes an active-low SHDN pin (Pin 3). When pulled low, it disables the regulator core, reducing total supply current to ≤1µA. This feature is intrinsic to the MAX6329 family (vs. MAX6349 which has MR instead) and is documented in the Pin Description, Absolute Maximum Ratings, and Electrical Characteristics sections of the datasheet.
What type of reset output does the MAX6329TPUT+ have, and how is it configured?
The MAX6329TPUT+ features an active-low open-drain RESET output (Pin 4), denoted by the 'P' suffix in the part number. It requires an external pullup resistor to the desired logic voltage (e.g., 3.3V or 5V) and asserts low during power-up, brownout, or when SHDN is active. This configuration is confirmed in the Selector Guide, Pin Configuration diagram, and RESET Circuit section.
What is the minimum output capacitor required for stable operation of the MAX6329TPUT+?
The MAX6329TPUT+ requires a minimum 1µF ceramic or tantalum output capacitor for stable operation across temperature and load (0–150mA). This value is specified in the Features list, Applications Information, and Typical Operating Characteristics. Larger values (e.g., 10µF) improve PSRR and transient response but are not mandatory for basic regulation.
How does the MAX6329TPUT+ protect against reverse current flow from OUT to IN?
The MAX6329TPUT+ incorporates internal reverse leakage protection that disables the pass transistor when VOUT exceeds VIN, ensuring zero reverse current flow. This allows safe operation with auxiliary backup supplies (e.g., coin-cell batteries) without external blocking diodes - a feature explicitly stated in the General Description, Detailed Description, and Absolute Maximum Ratings sections.
MAX6329TPUT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.23V (3.3V)
- Voltage - Output (Max):
- 5V
- Voltage Dropout (Max):
- 0.36V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Reset
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- 0°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6329TPUT+ FAQ
1.How can I place an order for MAX6329TPUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6329TPUT+ 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 MAX6329TPUT+ reliable?
The price and inventory of MAX6329TPUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6329TPUT+ is usually 5 days.
3.What payment methods are accepted for MAX6329TPUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6329TPUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6329TPUT+?
MAX6329TPUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6329TPUT+ 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 MAX6329TPUT+?
For technical support, including MAX6329TPUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6329TPUT+ requirements.
6.How does Aetrix verify that MAX6329TPUT+ is sourced from the original manufacturer or authorized distributors?
All MAX6329TPUT+ 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 MAX6329TPUT+ meets industry standards.
7.What is the process for return or replacement of MAX6329TPUT+?
All MAX6329TPUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6329TPUT+, 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 MAX6329TPUT+ part is unused and in its original packaging.
Return procedure for MAX6329TPUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6329TPUT+ Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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 …
