My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1963AEZT180+T
- Part No.:
- MAX1963AEZT180+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
MAX1963AEZT180+T.pdf
- Description:
- IC REG LIN 1.8V 300MA TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX1963AEZT180+T from Maxim Integrated is a low-dropout linear regulator with preset 1.8V output, delivering guaranteed 300mA continuous current from a 1.62V–3.6V input supply and featuring 100mV dropout at full load, ±0.5% output accuracy, and active-low open-drain RESET with 2.2ms delay-designed for power management in portable battery-powered systems such as handheld computers and smart phones.
For engineers reviewing the MAX1963AEZT180+T datasheet, MAX1963AEZT180+T pinout, MAX1963AEZT180+T application, or MAX1963AEZT180+T equivalent, key selection criteria include input voltage range (1.62V–3.6V), guaranteed 300mA output capability, 1.8V fixed output with ±0.5% accuracy, thermal/short-circuit protection, and compatibility with 1µF input / 4.7µF output ceramic capacitors.
Technical Context
The MAX1963AEZT180+T employs an internal p-channel MOSFET pass transistor (RDS(ON) = 0.33Ω) enabling supply current independence from load and dropout voltage, with quiescent current of 90µA typical under full load. Its error amplifier compares a precision reference against internal feedback to regulate output voltage.
RESET functionality monitors VOUT with 82.5% nominal threshold and 1.7% hysteresis, asserting low for ≥2.2ms after regulation is achieved; shutdown is logic-controlled via active-low SHDN pin, reducing supply current below 1µA while actively pulling OUT to GND through a 1.5kΩ resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V, trimmed to ±0.5% accuracy over temperature, line, and load ensures stable core voltage for low-power microcontrollers. |
| Max Output Current | Guaranteed 300mA continuous delivery supports SoC or FPGA I/O rail requirements without derating at +25°C. |
| Dropout Voltage | 100mV at 300mA load enables operation down to VIN = 1.9V, extending usable battery life in single-cell Li-ion or Li-poly systems. |
| Input Voltage Range | 1.62V to 3.6V accommodates declining battery profiles and allows direct connection to partially discharged cells. |
| Ground Current | 90µA typical at 300mA load and independent of dropout preserves battery runtime in active mode. |
| RESET Delay | 2.2ms minimum assertion time after VOUT reaches regulation provides reliable µP reset timing for system initialization. |
| PSRR | 70dB at f < 1kHz suppresses ripple from noisy switching supplies feeding the LDO input. |
Pinout & Package
MAX1963AEZT180+T is housed in a lead-free, RoHS-compliant 6-pin thin SOT23-6 package (1.6mm × 2.9mm × 1.1mm), optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Regulator Input | Accepts 1.62V–3.6V supply; requires ≥1µF ceramic bypass to GND for stability and noise suppression. |
| 2 (GND) | Ground Reference & Heatsink | Serves as primary return path and thermal conduction path; must be soldered to large PCB copper area. |
| 3 (SHDN) | Active-Low Shutdown Control | Pulling low disables regulator, reduces IQ to <1µA, and forces OUT low via internal 1.5kΩ resistor. |
| 4 (RESET) | Open-Drain Reset Flag | Asserts low when VOUT < 82.5% of 1.8V; rises after ≥2.2ms once regulation is confirmed. |
| 5 (I.C.) | Internally Connected | No external connection required; leave floating or tie to GND per layout best practice. |
| 6 (OUT) | Regulated Output | Delivers up to 300mA at 1.8V; requires ≥4.7µF low-ESR ceramic capacitor to GND for transient response and stability. |
Key Features
| Feature | Design Value |
|---|---|
| pMOS Pass Transistor | 0.33Ω RDS(ON) enables low dropout and eliminates base-drive current, maintaining 90µA IQ across load and dropout conditions. |
| Logic-Controlled Shutdown | Active-low SHDN pin allows precise system-level power sequencing and ultra-low standby current (<1µA). |
| Thermal & Short-Circuit Protection | Auto-recovering thermal shutdown at +165°C with 15°C hysteresis prevents damage during sustained overload or poor heatsinking. |
| Reset Output with Precision Threshold | 82.5% VOUT detection with 1.7% hysteresis ensures robust brownout immunity and clean µP reset signaling. |
| Low-Noise Operation | 86µVRMS output noise (10Hz–100kHz) and 70dB PSRR support noise-sensitive analog or RF subsystems. |
Applications
| Notebook/Handheld Computers | Cellular/Smart Phones |
|---|---|
Use Scenario: Powering application processor I/O rails and memory interfaces in compact clamshell or slate form factors. IC Role / Device Role / Timing Role: Primary 1.8V LDO supplying core logic voltage with fast load-transient response to handle burst-mode CPU activity. Use Value: 20mV typical load-step response (20mA→200mA) and 100mV dropout preserve system uptime during battery voltage sag. | Use Scenario: Regulating voltage for baseband modem and connectivity ICs (Wi-Fi/BT) in multi-rail mobile platforms. IC Role / Device Role / Timing Role: Secondary 1.8V supply with RESET flag synchronized to power-on reset sequence for peripheral initialization. Use Value: 2.2ms RESET delay meets ARM-based SoC reset timing requirements while supporting 1.62V minimum VIN for deep discharge tolerance. |
| DSC / CD/MP3 Players | PCMCIA Cards |
Use Scenario: Supplying DSP and audio codec circuitry in battery-operated portable media players. IC Role / Device Role / Timing Role: Low-noise 1.8V source minimizing audible artifacts in DAC output paths and analog front-ends. Use Value: 86µVRMS output noise and 70dB PSRR prevent switching noise coupling into sensitive audio signal chains. | Use Scenario: Providing regulated 1.8V to PC Card interface logic and controller ASICs in legacy expansion slots. IC Role / Device Role / Timing Role: Compact-area LDO with SOT23 footprint meeting PCMCIA mechanical constraints and hot-swap sequencing needs. Use Value: Tiny 6-pin thin SOT23-6 package (<1.1mm height) fits within tight card thickness limits while delivering full 300mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS73118DBVR | 1.8V fixed output, 300mA, 150mV dropout at 300mA, 1.7V min VIN, no integrated RESET. | Lacks RESET output; requires external supervisor for power-on reset functionality. | Select when RESET is handled separately and lower cost is prioritized over integrated supervision. |
| MCP1700T-1802E/TT | 1.8V fixed output, 250mA, 178mV dropout at 250mA, 2.7V min VIN, no RESET. | Lower current rating and higher minimum input voltage limit use in single-cell Li-ion systems near end-of-discharge. | Select for cost-sensitive, lower-current applications where RESET is not required and input stays above 2.7V. |
Compared with TPS73118DBVR and MCP1700T-1802E/TT, the MAX1963AEZT180+T uniquely integrates a precision 2.2ms RESET output and supports operation down to 1.62V input-enabling reliable power sequencing and extended battery runtime in space-constrained portable designs.
Availability
MAX1963AEZT180+T is available at Aetrix Electronics and suitable for notebook computers, cellular handsets, portable media players, and PCMCIA cards requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX1963AEZT180+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, communications, and consumer applications.
The MAX1963A series is designed specifically for low-input-voltage, high-accuracy LDO regulation in battery-powered portable equipment, emphasizing minimal dropout, low quiescent current, and integrated power-good supervision.
FAQ
What is the output voltage of the MAX1963AEZT180+T?
The MAX1963AEZT180+T has a factory-trimmed fixed output voltage of 1.8V, with guaranteed accuracy of ±0.5% over load, line, and temperature (−40°C to +85°C). This value is confirmed by the "180" suffix in the part number and verified in the Electrical Characteristics table of the official datasheet.
Does the MAX1963AEZT180+T include a reset output, and what is its timing behavior?
Yes, the MAX1963AEZT180+T features an active-low, open-drain RESET output that remains asserted for at least 2.2ms after VOUT reaches regulation. It deasserts when VOUT exceeds 82.5% of 1.8V and reasserts immediately if VOUT falls below that threshold-ensuring robust power-on and brownout detection for microprocessors.
What package type does the MAX1963AEZT180+T use, and what are its dimensions?
The MAX1963AEZT180+T uses a 6-pin thin SOT23-6 package (package code Z6+1), measuring 1.6mm × 2.9mm × 1.1mm. It is lead-free and RoHS-compliant, with pin 2 serving as both ground reference and thermal heatsink-requiring connection to a large PCB copper area for optimal thermal performance.
What is the minimum input voltage required for the MAX1963AEZT180+T to regulate properly?
The MAX1963AEZT180+T operates with a minimum input voltage of 1.62V, enabling regulation even with deeply discharged single-cell lithium batteries. Its undervoltage lockout (UVLO) activates below ~1.45V (typical), preventing unstable operation during startup or brownout conditions.
How does the MAX1963AEZT180+T handle thermal overload or short-circuit conditions?
The MAX1963AEZT180+T incorporates thermal-overload protection that disables the pass transistor when junction temperature exceeds +165°C, then re-enables it after cooling by 15°C-resulting in pulsed output during sustained fault conditions. It also includes current limiting (450mA min) and short-circuit protection to safeguard both the IC and downstream circuitry.
MAX1963AEZT180+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 140 µA
- Current - Supply (Max):
- 90 µA
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
MAX1963AEZT180+T FAQ
1.How can I place an order for MAX1963AEZT180+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1963AEZT180+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 MAX1963AEZT180+T reliable?
The price and inventory of MAX1963AEZT180+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1963AEZT180+T is usually 5 days.
3.What payment methods are accepted for MAX1963AEZT180+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1963AEZT180+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1963AEZT180+T?
MAX1963AEZT180+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1963AEZT180+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 MAX1963AEZT180+T?
For technical support, including MAX1963AEZT180+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1963AEZT180+T requirements.
6.How does Aetrix verify that MAX1963AEZT180+T is sourced from the original manufacturer or authorized distributors?
All MAX1963AEZT180+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 MAX1963AEZT180+T meets industry standards.
7.What is the process for return or replacement of MAX1963AEZT180+T?
All MAX1963AEZT180+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1963AEZT180+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 MAX1963AEZT180+T part is unused and in its original packaging.
Return procedure for MAX1963AEZT180+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1963AEZT180+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 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…
