My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6329VPUT+T
- Part No.:
- MAX6329VPUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6
- Datasheet:
-
MAX6329VPUT+T.pdf
- Description:
- IC REG LIN POS ADJ 150MA SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6329VPUT+T from Maxim Integrated is a 150mA, low-dropout linear voltage regulator with integrated microprocessor reset circuit, preset for +1.8V output and -10% reset threshold (VTH = 1.50V to 1.65V), featuring 25µA quiescent current, 180mV dropout at 100mA, and active-low open-drain RESET output - deployed in battery-powered handheld instruments and USB devices requiring reliable power sequencing.
For engineers reviewing the MAX6329VPUT+T datasheet, MAX6329VPUT+T pinout, MAX6329VPUT+T application, or MAX6329VPUT+T equivalent, key selection criteria include its fixed +1.8V output, -10% reset tolerance, SOT23-6 package, shutdown control (SHDN), and compatibility with 1µF ceramic output capacitors for stable operation across 0°C to +85°C.
Technical Context
The MAX6329VPUT+T integrates a P-channel MOSFET LDO regulator core and a precision reset supervisor sharing the same 1.23V reference. Its regulator operates from 2.5V to 5.5V input, delivers up to 150mA, and maintains ±3.0% output accuracy over temperature and load. The reset circuit asserts active-low RESET for ≥100ms after VOUT rises above 1.50V–1.65V (−10% of 1.8V), with no external timing components required.
It features digitally controlled active-low SHDN enabling <1µA shutdown current, reverse leakage protection eliminating need for external blocking diodes, and thermal/short-circuit protection. Pin 3 (SHDN) must be tied to IN for normal operation; pin 5 (SET) is grounded to select the +1.8V preset mode per the V/W suffix designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +1.8V fixed (±3.0% over temp/load); set by grounding SET pin |
| Reset Threshold | 1.50V to 1.65V (−10% of 1.8V); triggers reset when VOUT falls below this range |
| Dropout Voltage | 180mV at 100mA load; enables operation down to VIN = 1.98V for full 1.8V output |
| Quiescent Current | 25µA typical (independent of load); critical for multi-year battery life in portable devices |
| Shutdown Current | <1µA max; achieved via active-low SHDN pin assertion |
| Reset Timeout | 100ms minimum; ensures stable VOUT and clock oscillation before µP release |
| Output Capacitor | 1µF min ceramic/tantalum; enables stability without ESR tuning or large bulk caps |
Pinout & Package
MAX6329VPUT+T is housed in a 6-pin SOT23-6 package (JEDEC MO-178AA), with GND serving dual role as electrical reference and thermal path. PCB layout requires soldering GND to a large copper area for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator input supply | Accepts 2.5V–5.5V; reverse leakage protected - safe if VOUT > VIN (e.g., backup battery) |
| 2 GND | Ground reference & thermal pad | Must connect to large PCB ground plane; primary heat conduction path |
| 3 SHDN | Active-low shutdown control | Pull low to reduce total supply current to <1µA; tie to IN for normal operation |
| 4 RESET | Active-low open-drain reset output | Requires external pullup; asserts low during power-up, brownout, or SHDN activation |
| 5 SET | Feedback voltage selection | Grounded for +1.8V fixed output (V/W suffix); unused in this configuration |
| 6 OUT | Regulated +1.8V output | Sources up to 150mA; bypass with ≥1µF capacitor at pin for stability |
Key Features
| Feature | Design Value |
|---|---|
| Integrated reset supervisor | Eliminates external RC network or discrete supervisor IC; reduces BOM count and board space |
| Zero reverse leakage | Prevents backfeed from VOUT to IN - enables seamless auxiliary power switchover without Schottky diodes |
| Thermal & short-circuit protection | Auto-recovers after cooling; sustains indefinite output short without damage |
| 1µF minimum output capacitor | Supports compact, low-ESR ceramic caps - avoids costly tantalum or large electrolytics |
| 100ms reset timeout | Guarantees µP clocks and supply rails stabilize before release - no firmware delay needed |
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 / Timing Role: Provides stable +1.8V rail for MCU, ADC, and display driver while asserting RESET until VOUT and crystal oscillator settle. Use Value: 25µA quiescent current extends battery life; 180mV dropout allows operation until battery drops to ~1.98V. | Use Scenario: Self-powered USB peripherals (e.g., HID keyboards, audio adapters) drawing from 5V USB bus. IC Role / Device Role / Timing Role: Generates clean +1.8V logic supply for USB transceiver and microcontroller; RESET ensures proper enumeration after plug-in. Use Value: Open-drain RESET interfaces directly with USB controller reset pin; 1µF output cap simplifies layout on space-constrained USB PCBs. |
| Palm Top Computers | PCMCIA Cards |
Use Scenario: Legacy PDAs with ASICs and SRAM requiring tightly regulated +1.8V under dynamic load. IC Role / Device Role / Timing Role: Primary LDO supplying core logic; SHDN pin enables deep-sleep mode coordinated with system PMU. Use Value: <1µA shutdown current minimizes standby drain; ±3.0% accuracy prevents SRAM bit errors during voltage droop. | Use Scenario: Hot-pluggable PCMCIA memory or modem cards needing power-good signaling to host controller. IC Role / Device Role / Timing Role: Regulates +1.8V I/O supply and generates hardware RESET pulse synchronized to card insertion detection. Use Value: 100ms timeout meets PCMCIA power sequencing spec; SOT23-6 footprint fits narrow card edge connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO-with-reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6328VPUT+T | Same +1.8V output and -10% reset threshold, but push-pull active-high RESET (RESET) instead of open-drain active-low | Requires level-shifting or inverted logic interface; unsuitable where pullup-based reset is standard | Select MAX6328VPUT+T only if host µP reset pin expects active-high assertion |
| TPS76318QDBVRQ1 | Automotive-grade +1.8V LDO (150mA, 25µA IQ) with separate reset IC (TLV803) - not integrated; no SHDN pin | Requires two ICs and external RC timing; lacks shutdown control and reverse leakage protection | Choose only if AEC-Q100 qualification is mandatory and integration is secondary |
Compared with MAX6329VPUT+T, MAX6328VPUT+T offers identical regulation and reset threshold but incompatible reset polarity, while TPS76318QDBVRQ1+TLV803 provides automotive reliability at cost of board area, component count, and missing SHDN functionality.
Availability
MAX6329VPUT+T is available at Aetrix Electronics and suitable for hand-held instruments, USB devices, and palm top computers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX6329VPUT+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) designs precision analog and mixed-signal ICs for power management, sensing, and interface applications.
The MAX6329 series belongs to Maxim's micropower supervisory LDO family, engineered specifically for battery-operated portable electronics demanding ultra-low IQ, integrated reset, and minimal external components.
FAQ
What output voltage does the MAX6329VPUT+T deliver, and how is it configured?
The MAX6329VPUT+T delivers a fixed +1.8V output. This is selected by grounding the SET pin (pin 5), as indicated by the "V" suffix in the part number per Maxim's Selector Guide. Output accuracy is ±3.0% over temperature and load, and the device requires only a 1µF ceramic output capacitor for stable operation - no external feedback resistors are needed in this configuration.
What is the reset behavior of the MAX6329VPUT+T, and what threshold does it monitor?
The MAX6329VPUT+T features an active-low open-drain RESET output that asserts when the +1.8V output falls below 1.50V–1.65V (−10% tolerance), and remains asserted for a minimum of 100ms after VOUT rises above that threshold. This ensures microprocessors receive a clean, debounced power-good signal without external timing components - a key design feature confirmed in the Electrical Characteristics table and Pin Description section of the datasheet.
Does the MAX6329VPUT+T support shutdown, and how is it implemented?
Yes, the MAX6329VPUT+T supports shutdown via its active-low SHDN pin (pin 3). When pulled low, the regulator enters ultra-low-power mode with supply current reduced to less than 1µA. For normal operation, SHDN must be tied to the IN pin. This function is exclusive to the MAX6329 variant (not MAX6349) and is explicitly documented in the Pin Description, Electrical Characteristics, and Detailed Description sections.
What package type and pin count does the MAX6329VPUT+T use, and what thermal considerations apply?
The MAX6329VPUT+T uses a 6-pin SOT23-6 package (JEDEC MO-178AA). Pin 2 (GND) serves as both electrical ground and thermal conduction path; Maxim specifies soldering it to a large PCB copper area or ground plane to manage power dissipation. Thermal shutdown activates at +160°C with 20°C hysteresis, and the device's θJA is +140°C/W - all confirmed in Absolute Maximum Ratings and Applications Information.
Can the MAX6329VPUT+T be used with a 1µF output capacitor, and why is this significant?
Yes, the MAX6329VPUT+T is fully stable with a minimum 1µF ceramic or tantalum output capacitor - a key specification verified in the Electrical Characteristics table, Typical Operating Characteristics (toc07), and Applications Information. This eliminates the need for larger, higher-ESR capacitors or complex compensation networks, reducing solution size, cost, and design risk in space-constrained portable applications.
MAX6329VPUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.23V (1.8V)
- Voltage - Output (Max):
- 5V
- Voltage Dropout (Max):
- 0.75V @ 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
MAX6329VPUT+T FAQ
1.How can I place an order for MAX6329VPUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6329VPUT+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 MAX6329VPUT+T reliable?
The price and inventory of MAX6329VPUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6329VPUT+T is usually 5 days.
3.What payment methods are accepted for MAX6329VPUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6329VPUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6329VPUT+T?
MAX6329VPUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6329VPUT+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 MAX6329VPUT+T?
For technical support, including MAX6329VPUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6329VPUT+T requirements.
6.How does Aetrix verify that MAX6329VPUT+T is sourced from the original manufacturer or authorized distributors?
All MAX6329VPUT+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 MAX6329VPUT+T meets industry standards.
7.What is the process for return or replacement of MAX6329VPUT+T?
All MAX6329VPUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6329VPUT+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 MAX6329VPUT+T part is unused and in its original packaging.
Return procedure for MAX6329VPUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6329VPUT+T 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
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 …
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…
