My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6469TA15BD3+T
- Part No.:
- MAX6469TA15BD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6469TA15BD3+T.pdf
- Description:
- IC REG LIN POS ADJ 300MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,506
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX6469TA15BD3+T from Maxim Integrated is a 300mA low-dropout linear regulator with integrated microprocessor reset circuit, preset +1.5V output, -7.5% reset threshold, 150ms minimum reset timeout, and active-low push-pull RESET output. It operates from 2.5V to 5.5V input, delivers ±2.0% output accuracy over -40°C to +85°C, and consumes only 82µA quiescent current - ideal for battery-powered handheld instruments and USB peripherals requiring reliable power sequencing.
For engineers reviewing the MAX6469TA15BD3+T datasheet, MAX6469TA15BD3+T pinout, MAX6469TA15BD3+T application, or MAX6469TA15BD3+T equivalent, this device supports critical low-power design requirements including shutdown control (0.1µA), reverse current protection (0.01µA OUT→IN), thermal shutdown (180°C), and precise brownout detection with guaranteed 35µs VOUT-to-RESET delay.
Technical Context
This device integrates a precision LDO regulator core and a fully self-contained reset supervisor sharing the same voltage reference. The regulator uses a PMOS pass transistor enabling ultra-low dropout (55mV at 150mA) and eliminates external compensation components via internal stability optimization for ≥3.3µF ceramic output capacitors.
The reset circuit monitors VOUT directly and asserts active-low RESET when output falls below −7.5% of nominal (1.406V at 1.5V output), with fixed 150ms timeout after recovery. SHDN is active-low and disables regulation while reducing supply current to 0.1µA; RESET remains asserted during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +1.5V fixed, factory-trimmed, ±2.0% accuracy over full temperature range - ensures stable core logic supply for 1.5V I/O domains. |
| Max Output Current | 300mA guaranteed - sufficient to power ARM Cortex-M0+ microcontrollers with peripherals in portable designs. |
| Dropout Voltage | 55mV at 150mA load - enables operation down to VIN = 1.555V, extending battery runtime in single-cell Li-ion or alkaline systems. |
| Quiescent Current | 82µA typical - minimizes standby drain in always-on subsystems such as Bluetooth LE modules or real-time clocks. |
| Reset Threshold | −7.5% of VOUT (1.406V min at 1.5V) - matches standard microprocessor supply tolerance for deterministic boot validation. |
| Reset Timeout | 150ms minimum - satisfies Intel/ARM reset timing requirements for clock stabilization and memory initialization before firmware execution. |
| Shutdown Current | 0.1µA typical - enables true zero-power sleep mode when paired with host MCU-controlled SHDN assertion. |
| Input Voltage Range | 2.5V to 5.5V - compatible with USB 5V, 3.3V rails, and boosted single-cell battery sources without external pre-regulation. |
Pinout & Package
Package: 8-pin TDFN-EP (3mm × 3mm, 0.75mm height) with exposed paddle thermally and electrically connected to GND. Requires soldering EP to PCB ground plane for thermal performance and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator Input | Bypass with 0.1µF ceramic capacitor to GND; accepts 2.5–5.5V input; reverse leakage <0.01µA when VOUT > VIN. |
| 2 GND | Ground / Thermal Pad | Primary return path and heatsink; must connect to large copper area or internal ground plane to maintain TJ ≤ +150°C at 300mA. |
| 3 SHDN | Active-Low Shutdown Control | Pulled high internally; drive low to disable regulation and reduce IQ to 0.1µA; VIH = 0.7×VIN, VIL = 0.3×VIN. |
| 4 RESET | Active-Low Push-Pull Reset Output | Asserts low during power-up, brownout, or SHDN activation; VOH = 0.8×VOUT, VOL = 0.4V @ 3.2mA sink; no external pullup required. |
| 5 SET | Feedback Reference Input | Connected to GND for +1.5V fixed output; open or floating not allowed; input leakage ±100nA enables high-impedance divider use. |
| 6 OUT | Regulated Output | Delivers up to 300mA; bypass with ≥3.3µF low-ESR ceramic capacitor; output noise 75µVRMS (10Hz–100kHz) for clean analog/RF subsystems. |
| 7,8 EP | Exposed Paddle | Internally tied to GND; mandatory connection to PCB ground plane for thermal dissipation and electrical noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Microprocessor Reset | Eliminates need for discrete supervisor IC; guarantees 35µs VOUT-to-RESET assertion and 150ms timeout for deterministic boot flow. |
| Ultra-Low Quiescent Current | 82µA operating / 0.1µA shutdown enables >1-year battery life in coin-cell-powered IoT sensors with periodic wake-up cycles. |
| Reverse Current Protection | 0.01µA typical OUT→IN leakage prevents backup capacitor or supercap discharge into depleted primary battery during hot-swap events. |
| Thermal & Short-Circuit Protection | Auto-recovering shutdown at +180°C junction temp and 450mA current limit prevent damage during sustained overload or poor PCB layout. |
| Low-Noise Regulated Output | 75µVRMS output noise (10Hz–100kHz) supports noise-sensitive applications like ADC references or RF front-end biasing without added filtering. |
| Wide Input Voltage Range | 2.5V–5.5V operation accommodates direct connection to USB ports, Li-ion batteries (2.7–4.2V), and regulated 3.3V/5V system rails. |
Applications
| Handheld Instruments | USB Peripheral Devices |
|---|---|
|
Use Scenario: Power management in palm-sized test meters with LCD, ADC, and BLE radio operating from single AA/AAA cells. IC Role / Device Role / Timing Role: Primary 1.5V supply for microcontroller core and sensor interface; RESET ensures firmware starts only after stable 1.5V rail and crystal oscillator settle. Use Value: 55mV dropout extends usable battery range to 1.555V input, adding ~12% runtime vs. legacy 200mV-dropout regulators. |
Use Scenario: Self-powered USB audio adapters requiring clean 1.5V for DAC and digital logic while meeting USB suspend current limits. IC Role / Device Role / Timing Role: LDO + reset supervisor combo replaces two discrete ICs; SHDN pin synchronizes with USB suspend signaling to cut system IQ to 0.1µA. Use Value: Integrated reset eliminates external RC timing network, reducing BOM count and board space by 30% vs. discrete supervisor solutions. |
| Bluetooth Low Energy Modules | Notebook Subsystem Power |
|
Use Scenario: Always-on BLE beacon node powered by CR2032 coin cell, transmitting periodic advertisements with minimal average current draw. IC Role / Device Role / Timing Role: Provides regulated 1.5V to BLE SoC during active transmit bursts; RESET holds SoC in reset until VOUT stabilizes post-battery insertion. Use Value: 82µA quiescent current enables >2-year shelf life; 150ms reset timeout exceeds Nordic nRF52832's 100ms POR requirement. |
Use Scenario: Secondary 1.5V rail for notebook keyboard controller or embedded security chip, derived from main 3.3V or 5V supply. IC Role / Device Role / Timing Role: Supplies isolated 1.5V domain with independent reset signaling to prevent spurious wake from noisy shared 3.3V rail. Use Value: Push-pull RESET drives heavy loads directly (3.2mA sink), eliminating need for external buffer when interfacing with Intel PCH reset inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO-with-reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS79915YZTT | 150mA max output, no integrated reset, 1.5V fixed, 200mV dropout at 150mA | Requires external supervisor IC for reset functionality; lower current capability limits use with higher-power MCUs | Select when cost sensitivity outweighs integration benefit and system load ≤150mA |
| MAX8526ETA15+T | 300mA, +1.5V fixed, no reset, 120mV dropout at 300mA, 100µA IQ | Lacks reset circuit entirely; requires separate MAX6315 or similar supervisor for boot sequencing | Choose only if existing design already includes discrete reset IC and layout cannot accommodate new footprint |
Compared with TPS79915YZTT and MAX8526ETA15+T, the MAX6469TA15BD3+T uniquely combines 300mA delivery, 55mV dropout, integrated −7.5% reset with 150ms timeout, and 0.1µA shutdown - delivering full power-supply supervision in a single 3×3mm TDFN package without compromising performance or increasing BOM count.
Availability
MAX6469TA15BD3+T is available at Aetrix Electronics and suitable for handheld instrumentation, USB peripheral designs, and Bluetooth LE module production requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX6469TA15BD3+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, automotive, and consumer applications.
The MAX6469–MAX6484 product line was designed specifically for space-constrained, battery-operated systems needing tightly integrated power regulation and microprocessor supervision - emphasizing ultra-low IQ, precise reset thresholds, and robust fault protection.
FAQ
What is the exact output voltage tolerance of the MAX6469TA15BD3+T over temperature?
The MAX6469TA15BD3+T guarantees ±2.0% output voltage accuracy across the full operating temperature range of −40°C to +85°C. This specification applies to the fixed +1.5V output version and is verified under load conditions of 1mA ≤ IOUT ≤ 300mA. At +25°C, the tighter ±1.3% typical tolerance is observed, but system-level designs must rely on the ±2.0% worst-case bound for robustness verification. The MAX6469TA15BD3+T achieves this using laser-trimmed internal feedback resistors and a bandgap reference stable over temperature.
Does the MAX6469TA15BD3+T support remote sensing for improved load regulation?
No, the MAX6469TA15BD3+T does not support remote sensing. Its feedback path is internal and fixed for the +1.5V output configuration; the SET pin is connected to GND and not used as a remote sense input. Remote feedback capability is exclusive to the MAX6475/MAX6476/MAX6483/MAX6484 variants, which feature an FB pin instead of SET. For the MAX6469TA15BD3+T, load regulation is specified at ±0.2% over 1mA–150mA load steps, achieved through internal compensation optimized for local output capacitor placement.
What is the function of the exposed paddle (EP) on the MAX6469TA15BD3+T package?
The exposed paddle (EP) on the MAX6469TA15BD3+T's 8-pin TDFN package is internally connected to GND and serves dual purposes: thermal conduction and electrical grounding. It must be soldered to a dedicated PCB copper pour tied to the system ground plane to achieve the rated 1951mW power dissipation and maintain junction temperature within safe limits at 300mA load. Using EP solely as a mechanical anchor or leaving it unconnected degrades thermal performance by >40°C and risks thermal shutdown during continuous operation.
Can the MAX6469TA15BD3+T be used with a 1.8V input supply?
No, the MAX6469TA15BD3+T cannot operate reliably from a 1.8V input. Its absolute minimum input voltage is 2.5V per the Electrical Characteristics table, and its undervoltage lockout (UVLO) activates below 2.25V. With a +1.5V output and 55mV typical dropout at 150mA, the theoretical minimum input would be 1.555V - but the internal reference and control circuitry require ≥2.5V to function. Attempting 1.8V operation results in UVLO activation, disabling regulation and asserting RESET continuously.
How does the reset timeout behavior work during power-down with the MAX6469TA15BD3+T?
During power-down, the MAX6469TA15BD3+T asserts RESET when VOUT drops below 1.406V (−7.5% of 1.5V) and maintains RESET low for the full 150ms timeout period after VOUT falls below threshold - even if input collapses rapidly. This ensures downstream logic remains held in reset throughout supply decay. If SHDN is pulled low before VIN drops, RESET asserts immediately and stays low for 150ms after SHDN deassertion or VIN recovery, providing consistent reset timing regardless of shutdown trigger source.
MAX6469TA15BD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V (1.5V)
- Voltage - Output (Max):
- 5.5V
- Voltage Dropout (Max):
- -
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 136 µA
- Current - Supply (Max):
- 96 µA
- PSRR:
- -
- Control Features:
- Reset, Shutdown
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (3x3)
MAX6469TA15BD3+T FAQ
1.How can I place an order for MAX6469TA15BD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6469TA15BD3+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 MAX6469TA15BD3+T reliable?
The price and inventory of MAX6469TA15BD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6469TA15BD3+T is usually 5 days.
3.What payment methods are accepted for MAX6469TA15BD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6469TA15BD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6469TA15BD3+T?
MAX6469TA15BD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6469TA15BD3+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 MAX6469TA15BD3+T?
For technical support, including MAX6469TA15BD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6469TA15BD3+T requirements.
6.How does Aetrix verify that MAX6469TA15BD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6469TA15BD3+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 MAX6469TA15BD3+T meets industry standards.
7.What is the process for return or replacement of MAX6469TA15BD3+T?
All MAX6469TA15BD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6469TA15BD3+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 MAX6469TA15BD3+T part is unused and in its original packaging.
Return procedure for MAX6469TA15BD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6469TA15BD3+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…
