My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6474TA15BD2
- Part No.:
- MAX6474TA15BD2
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6474TA15BD2.pdf
- Description:
- IC REG LINEAR LDO 300MA
- Quantity:
- Payment:
- Shipping:
Inventory:500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6474TA15BD2 from Maxim Integrated is a 300mA low-dropout linear regulator with integrated microprocessor reset circuit, fixed 1.5V output voltage, -12.5% reset threshold accuracy (suffix 'B'), 20ms minimum reset timeout (suffix 'D2'), and active-low manual reset input (MR). 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 Bluetooth modules.
For engineers reviewing the MAX6474TA15BD2 datasheet, MAX6474TA15BD2 pinout, MAX6474TA15BD2 application, or MAX6474TA15BD2 equivalent, key selection criteria include its manual reset capability, 20ms reset timeout, 1.5V fixed output, shutdown current of 0.1µA, and compatibility with portable systems requiring tight supply tolerance monitoring and low-power supervision.
Technical Context
The MAX6474TA15BD2 implements a dual-function LDO core with an independent reset supervisor sharing the same reference. Its MR pin enables external assertion of reset while VOUT remains within specification, and the internal 40kΩ pullup to VOUT eliminates need for external biasing. The reset circuit asserts active-low RESET for ≥20ms after MR transitions high, with guaranteed timing across temperature.
This variant belongs to the MAX6471–MAX6474/MAX6479–MAX6482 subgroup featuring manual reset input and fixed-output configuration. It uses the SOT23-6 package with IN, GND, SHDN, RESET, MR, and OUT pins - no SET or FB pins - confirming dedicated fixed-voltage operation with MR-triggered supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed +1.5V - eliminates external feedback resistors and simplifies layout for stable low-voltage rail generation. |
| Reset Threshold Accuracy | -12.5% of VOUT - guarantees reset assertion before output drops below 1.3125V, meeting strict µP supply tolerance requirements. |
| Reset Timeout Period | 20ms (min) - ensures sufficient processor initialization time after manual or power-up reset events. |
| Load Current Capability | Guaranteed 300mA - supports moderate-current digital loads such as baseband processors or RF transceivers without derating. |
| Quiescent Current | 82µA - enables multi-week battery life in always-on portable devices like PDAs or wireless sensors. |
| Shutdown Current | 0.1µA (typ) - reduces system standby power to negligible levels during deep sleep modes. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion, 3-cell alkaline, or USB-powered systems. |
Pinout & Package
MAX6474TA15BD2 is housed in a 6-pin SOT23 package (JEDEC MO-178AA), with exposed paddle thermally connected to GND. The compact 2.9mm × 1.6mm footprint supports high-density portable PCB layouts while enabling efficient heat dissipation via soldered ground pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Regulator input supply | Bypassed to GND with 0.1µF capacitor; accepts 2.5V–5.5V input for 1.5V output regulation. |
| 2 - GND | Power and thermal reference | Primary ground return and heatsink; must be soldered to large copper area for thermal management. |
| 3 - SHDN | Active-low shutdown control | Pulled high to IN for normal operation; pulling low disables regulator and reduces IQ to 0.1µA. |
| 4 - RESET | Active-low reset output | Push-pull or open-drain (configurable at factory); stays low for ≥20ms after MR release or VOUT recovery. |
| 5 - MR | Active-low manual reset input | Internally pulled up to VOUT (40kΩ typ); logic-low pulse initiates supervised reset without affecting VOUT stability. |
| 6 - OUT | Regulated output | Delivers 1.5V ±2.0% at up to 300mA; requires ≥3.3µF low-ESR ceramic capacitor to GND for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated manual reset input (MR) | Enables operator- or system-initiated reset without disrupting regulated 1.5V output - critical for field diagnostics and firmware recovery. |
| Factory-configured 20ms reset timeout | Ensures deterministic µP boot sequence timing without external RC components or firmware delays. |
| ±2.0% output accuracy over full temperature range | Maintains reliable logic-level compatibility with 1.5V I/O interfaces (e.g., LPDDR2, low-voltage ASICs) across industrial environments. |
| 0.1µA shutdown current | Supports ultra-low-power "ship mode" in consumer electronics, extending shelf-life battery drain to years. |
| Reverse current protection (OUT→IN) | Limits leakage to 0.01µA typ when backup source exceeds input - prevents battery backfeed in dual-supply systems. |
Applications
| Handheld Instruments | PCMCIA/USB Devices |
|---|---|
Use Scenario: Powering ARM-based PDA mainboard with real-time clock, touchscreen controller, and flash memory. IC Role / Device Role / Timing Role: Primary 1.5V LDO supplying core logic voltage while asserting RESET to hold processor in reset until stable. Use Value: MR pin allows hardware reset button integration without additional supervisor IC, reducing BOM count and board area. | Use Scenario: Providing clean 1.5V rail to USB 2.0 transceiver and EEPROM in compact card reader dongle. IC Role / Device Role / Timing Role: Regulator + supervisor combo ensuring transceiver initialization completes before USB enumeration begins. Use Value: 20ms reset timeout aligns precisely with USB suspend/resume timing budgets, avoiding enumeration failures. |
| Cellular Telephones | Digital Cameras |
Use Scenario: Supplying 1.5V to baseband processor's I/O domain during battery-swap events in feature phones. IC Role / Device Role / Timing Role: Maintains regulated output during brief input interruption and asserts RESET on brownout detection. Use Value: Manual reset via MR enables factory test-mode entry without software intervention, accelerating production line testing. | Use Scenario: Powering image sensor interface and JPEG encoder ASIC in battery-operated point-and-shoot camera. IC Role / Device Role / Timing Role: Delivers low-noise 1.5V supply while synchronizing power-on reset with lens motor initialization. Use Value: 82µA quiescent current extends standby time between shots, and shutdown mode cuts leakage during storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO-with-reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6474TA15BD3 | Same 1.5V output and MR functionality, but 150ms reset timeout instead of 20ms. | Suitable for systems requiring longer processor initialization (e.g., FPGA configuration loading). | Select MAX6474TA15BD3 only if extended reset hold time is required; otherwise MAX6474TA15BD2 provides optimal timing for fast-boot µPs. |
| TPS76315QDBVRQ1 | Automotive-grade 1.5V LDO (300mA) with reset, but no manual reset input and 200ms fixed timeout. | Designed for AEC-Q100 automotive use; lacks MR pin and offers coarser reset timing granularity. | Choose TPS76315QDBVRQ1 only for automotive qualification needs; MAX6474TA15BD2 is preferred for consumer/portable designs requiring MR flexibility. |
Compared with MAX6474TA15BD3 and TPS76315QDBVRQ1, the MAX6474TA15BD2 uniquely balances precise 20ms reset timing, manual reset capability, and ultra-low 82µA quiescent current - making it optimal for space-constrained, battery-sensitive portable electronics where deterministic short-duration reset and field-serviceability are essential.
Availability
MAX6474TA15BD2 is available at Aetrix Electronics and suitable for handheld instruments, PCMCIA/USB devices, and cellular telephones requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for MAX6474TA15BD2 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, communications, and consumer applications.
The MAX6469–MAX6484 product line was designed specifically for battery-powered portable equipment needing integrated power regulation and microprocessor supervision in minimal footprint - addressing demand for simplified, low-quiescent-current power solutions.
FAQ
What is the function of the MR pin on the MAX6474TA15BD2?
The MR (Manual Reset) pin on the MAX6474TA15BD2 is an active-low input that allows external initiation of a reset event while the 1.5V output remains within specification. When pulled low, it asserts the active-low RESET output for the full 20ms timeout period. The pin features an internal 40kΩ pullup to VOUT, enabling direct switch-to-ground connection without external components. This functionality is confirmed in the MAX6474TA15BD2's pin description and functional diagram for the MAX6471–MAX6474 subgroup.
Does the MAX6474TA15BD2 support adjustable output voltage?
No, the MAX6474TA15BD2 does not support adjustable output voltage. It is a fixed-output device delivering +1.5V, as indicated by the '15' suffix in its part number and confirmed by its pinout - it lacks a SET or FB pin and uses the MR pin instead. Adjustable variants (e.g., MAX6469–MAX6472) include a SET pin and different ordering suffixes; the MAX6474TA15BD2 is strictly configured for 1.5V operation per its datasheet-defined family grouping.
What is the maximum input voltage rating for the MAX6474TA15BD2?
The absolute maximum input voltage for the MAX6474TA15BD2 is +7V, as specified in the Absolute Maximum Ratings table. However, the recommended operating input voltage range is 2.5V to 5.5V - exceeding 5.5V may compromise regulation accuracy, dropout performance, or long-term reliability. Operation at 7V is permissible only under transient, non-continuous conditions and must remain within thermal limits defined by the SOT23-6 package's power dissipation capability.
How does the MAX6474TA15BD2 behave during battery removal or backup scenarios?
When the IN supply is removed, the MAX6474TA15BD2's reverse current protection limits OUT-to-IN leakage to 0.01µA (typ), preventing backup sources from discharging into the dead input. With SHDN pulled high to VOUT, OUT-to-GND reverse current remains at ~40µA, allowing supercapacitors or backup batteries to sustain the 1.5V rail. RESET asserts during this condition, signaling the system to enter low-power mode - behavior verified in the "Reverse Leakage Protection" section of the MAX6469–MAX6484 datasheet.
Is the MAX6474TA15BD2 pin-compatible with other devices in the MAX6469–MAX6484 family?
The MAX6474TA15BD2 is pin-compatible with other SOT23-6 variants in the MAX6471–MAX6474 subgroup (e.g., MAX6471, MAX6472, MAX6473), sharing identical IN, GND, SHDN, RESET, MR, and OUT pin assignments. It is not pin-compatible with SET- or FB-equipped variants (e.g., MAX6469, MAX6475) or UCSP/TDFN packages due to differing pin counts and functions. Pin compatibility is explicitly confirmed in the "MAX6471/MAX6472/MAX6479/MAX6480 Pin Description" section of the datasheet.
MAX6474TA15BD2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- 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):
- 1.2V (1.5V)
- Voltage - Output (Max):
- 5.5V
- Voltage Dropout (Max):
- -
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 136 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Manual Reset, Reset
- 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-EP (3x3)
MAX6474TA15BD2 FAQ
1.How can I place an order for MAX6474TA15BD2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6474TA15BD2 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 MAX6474TA15BD2 reliable?
The price and inventory of MAX6474TA15BD2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6474TA15BD2 is usually 5 days.
3.What payment methods are accepted for MAX6474TA15BD2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6474TA15BD2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6474TA15BD2?
MAX6474TA15BD2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6474TA15BD2 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 MAX6474TA15BD2?
For technical support, including MAX6474TA15BD2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6474TA15BD2 requirements.
6.How does Aetrix verify that MAX6474TA15BD2 is sourced from the original manufacturer or authorized distributors?
All MAX6474TA15BD2 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 MAX6474TA15BD2 meets industry standards.
7.What is the process for return or replacement of MAX6474TA15BD2?
All MAX6474TA15BD2 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6474TA15BD2, 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 MAX6474TA15BD2 part is unused and in its original packaging.
Return procedure for MAX6474TA15BD2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6474TA15BD2 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 …
