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Analog Devices Inc./Maxim Integrated MAX1976AEZT160+T
- Part No.:
- MAX1976AEZT160+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
MAX1976AEZT160+T.pdf
- Description:
- IC REG LIN 1.6V 300MA TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,062
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Product details
Overview
The MAX1976AEZT160+T from Maxim Integrated is a low-dropout linear regulator with active-low open-drain RESET output, designed for battery-powered systems requiring stable 1.6V output at up to 300mA load current, ±0.5% initial accuracy, and 100mV dropout at full load. It operates from 1.62V–3.6V input and integrates thermal overload and short-circuit protection.
For engineers reviewing the MAX1976AEZT160+T datasheet, MAX1976AEZT160+T pinout, MAX1976AEZT160+T application, or MAX1976AEZT160+T equivalent, key selection criteria include guaranteed 300mA output under low-input conditions, 70ms RESET delay timing, SOT23-6 package footprint, and compatibility with 1µF/4.7µF ceramic bypass capacitors.
Technical Context
The MAX1976AEZT160+T uses an internal p-channel MOSFET pass transistor (RDS(ON) = 0.33Ω) enabling supply current independence from load and dropout voltage. Its error amplifier compares a precision reference against internal feedback to regulate output voltage within ±0.5% over temperature, line, and load.
RESET functionality monitors VOUT with 82.5% threshold hysteresis and asserts low for ≥70ms after regulation is achieved; SHDN input enables logic-controlled shutdown with <1µA quiescent current and active pull-down of OUT and RESET.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.60V preset - eliminates external resistor divider, reduces BOM count and layout area |
| Max Output Current | 300mA continuous - supports core logic rails in portable SoC applications |
| Dropout Voltage | 100mV at 300mA - extends usable battery life down to ~1.7V input for Li-ion/Li-poly systems |
| Output Accuracy | ±0.5% at +25°C - ensures reliable operation of voltage-sensitive digital cores without margining |
| RESET Delay | 70ms minimum - meets microprocessor power-on reset timing requirements per JEDEC JESD84 |
| Quiescent Current | 90µA typical at 300mA - maintains low standby power in always-on subsystems |
| Input Voltage Range | 1.62V to 3.6V - compatible with single-cell Li-ion, LiFePO₄, and multi-cell alkaline/NiMH sources |
Pinout & Package
MAX1976AEZT160+T is housed in a 6-pin thin SOT23-6 package (1.6mm × 2.9mm × 1.1mm), optimized for space-constrained portable PCBs. The exposed pad is not present in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Regulator input | Accepts 1.62V–3.6V supply; requires ≥1µF ceramic bypass to GND for stability |
| 2 (GND) | Ground reference & thermal path | Serves as primary return and heatsink; must connect to large copper pour |
| 3 (SHDN) | Active-low shutdown control | Pull low to disable regulator, reduce IQ to <1µA, and force RESET low |
| 4 (RESET) | Open-drain reset flag | Asserts low until VOUT reaches 1.60V and remains low for ≥70ms post-regulation |
| 5 (I.C.) | Internally connected | No external connection required; leave floating or tie to GND per layout best practice |
| 6 (OUT) | Regulated output | Delivers 1.60V at up to 300mA; requires ≥4.7µF low-ESR ceramic capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| pMOS pass transistor | 0.33Ω RDS(ON) enables low dropout and load-independent quiescent current |
| Logic-controlled shutdown | SHDN input reduces total supply current to <1µA while actively pulling OUT and RESET low |
| Thermal & short-circuit protection | Auto-recovering shutdown at +165°C junction temperature with 15°C hysteresis |
| Reset monitoring | Guaranteed RESET assertion during brownout, power-up, and shutdown with 82.5% VOUT threshold |
| Preset output voltage | Factory-trimmed 1.60V eliminates external resistors and improves long-term DC accuracy |
Applications
| Notebook Power Rails | Smartphone Core Logic |
|---|---|
Use Scenario: Providing clean 1.6V supply to CPU I/O or GPU memory interface in ultra-thin notebooks. IC Role / Device Role / Timing Role: Primary LDO regulator delivering regulated rail with fast transient response and precise voltage tracking. Use Value: 100mV dropout preserves battery runtime; ±0.5% accuracy prevents timing violations in high-speed interfaces. | Use Scenario: Powering application processor core domain in dual-SIM smartphones operating from single-cell Li-ion. IC Role / Device Role / Timing Role: Low-noise, high-accuracy LDO with integrated RESET for safe boot sequencing. Use Value: 70ms RESET delay satisfies ARM Cortex-A series boot loader timing; 90µA IQ minimizes standby drain. |
| DSC Image Sensor Bias | PCMCIA Card Interface |
Use Scenario: Supplying bias voltage to CMOS image sensor analog front-end in digital still cameras. IC Role / Device Role / Timing Role: Low-noise analog rail generator with tight DC regulation and minimal PSRR degradation at 1kHz. Use Value: 86µVRMS output noise and 70dB PSRR suppress switching noise from adjacent DC/DC converters. | Use Scenario: Regulating 1.6V VCC for PCMCIA Type II card controllers in industrial handheld terminals. IC Role / Device Role / Timing Role: Compact, robust LDO with thermal protection and logic-controlled enable for hot-swap compliance. Use Value: SOT23-6 footprint fits narrow card edge; thermal shutdown prevents latch-up during insertion transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0516PDBVR | Lower IQ (25µA), no RESET output, 1.6V fixed output, same SOT23-5 package (pinout incompatible) | Lacks power-good signaling; unsuitable where µP reset coordination is required | Select only if RESET is omitted from system architecture and lowest possible standby current is critical |
| MCP1826-1602E/DB | 1.6V fixed, 500mA rated, no RESET, 6-pin SOT23 package with different pin assignment (IN/GND/EN/OUT/GND/NC) | Higher current capability but no supervision function; pinout incompatible with MAX1976AEZT160+T | Consider when higher output current is needed and RESET can be implemented externally |
Compared with TPS7A0516PDBVR and MCP1826-1602E/DB, the MAX1976AEZT160+T uniquely combines 1.6V preset output, 300mA capability, integrated 70ms RESET, and SOT23-6 compatibility-enabling drop-in replacement only in designs already using MAX1976A pinout and timing requirements.
Availability
MAX1976AEZT160+T is available at Aetrix Electronics and suitable for notebook computers, smartphone baseband processors, digital still cameras, and PCMCIA interface modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX1976AEZT160+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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer markets.
The MAX1976A product line delivers low-input-voltage, high-accuracy LDO regulators with integrated RESET for portable battery-powered equipment where small size, low dropout, and precise power sequencing are essential.
FAQ
What is the exact output voltage of the MAX1976AEZT160+T?
The MAX1976AEZT160+T provides a factory-trimmed, fixed output voltage of 1.60V. This value is laser-trimmed during production and guaranteed within ±0.5% at +25°C, with ±2.5% tolerance over full load, line, and temperature range (-40°C to +85°C). The "160" suffix in the part number explicitly denotes the 1.60V output configuration.
Does the MAX1976AEZT160+T require external resistors to set its output voltage?
No, the MAX1976AEZT160+T does not require external resistors. Its 1.60V output is internally preset via factory trimming of the feedback network. This eliminates external components, reduces PCB area, improves long-term DC accuracy, and avoids resistor tolerance drift-making it ideal for compact, high-reliability portable designs.
What is the RESET delay timing specification for the MAX1976AEZT160+T?
The MAX1976AEZT160+T features a guaranteed RESET delay of 70ms minimum after the output voltage reaches regulation. RESET remains asserted low until VOUT exceeds 82.5% of nominal (1.32V) and stays low for at least 70ms thereafter. This timing satisfies JEDEC JESD84 power-on reset requirements for most microprocessors and SoCs.
Can the MAX1976AEZT160+T operate from a 1.65V input supply?
Yes, the MAX1976AEZT160+T supports input voltages as low as 1.62V, making it fully operational at 1.65V. With a 1.60V output and 100mV dropout at 300mA, it maintains regulation down to VIN = 1.70V under full load. At 1.65V input, it delivers full 300mA only in dropout region (VOUT slightly below 1.60V), but remains functional for lower loads per Figure 2 in the datasheet.
Is the MAX1976AEZT160+T RoHS-compliant and lead-free?
Yes, the MAX1976AEZT160+T is RoHS-compliant and lead-free. The "+T" suffix in the part number explicitly indicates a lead(Pb)-free/RoHS-compliant package per Maxim's ordering nomenclature. It meets EU RoHS Directive 2011/65/EU and is compatible with standard Pb-free reflow soldering profiles up to +260°C peak temperature.
MAX1976AEZT160+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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
MAX1976AEZT160+T FAQ
1.How can I place an order for MAX1976AEZT160+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1976AEZT160+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 MAX1976AEZT160+T reliable?
The price and inventory of MAX1976AEZT160+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1976AEZT160+T is usually 5 days.
3.What payment methods are accepted for MAX1976AEZT160+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1976AEZT160+T transactions.
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4.How is shipping managed for MAX1976AEZT160+T?
MAX1976AEZT160+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1976AEZT160+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 MAX1976AEZT160+T?
For technical support, including MAX1976AEZT160+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1976AEZT160+T requirements.
6.How does Aetrix verify that MAX1976AEZT160+T is sourced from the original manufacturer or authorized distributors?
All MAX1976AEZT160+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 MAX1976AEZT160+T meets industry standards.
7.What is the process for return or replacement of MAX1976AEZT160+T?
All MAX1976AEZT160+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1976AEZT160+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 MAX1976AEZT160+T part is unused and in its original packaging.
Return procedure for MAX1976AEZT160+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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