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Analog Devices Inc./Maxim Integrated MAX1976AETA130+T
- Part No.:
- MAX1976AETA130+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MAX1976AETA130+T.pdf
- Description:
- IC REG LINEAR 1.3V 300MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,853
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Product details
Overview
MAX1976AETA130+T from Maxim Integrated is a low-dropout linear regulator with preset 1.30V output, delivering guaranteed 300mA continuous current from 1.62V–3.6V input, featuring 100mV dropout at full load and active-low open-drain RESET with 70ms delay. It serves as a primary power supply for core logic in portable battery-powered systems such as handheld computers and smart phones.
For engineers reviewing the MAX1976AETA130+T datasheet, MAX1976AETA130+T pinout, MAX1976AETA130+T application, or MAX1976AETA130+T equivalent, key selection criteria include input voltage range (1.62V–3.6V), ±0.5% output accuracy over temperature, thermal shutdown at +165°C, and compatibility with 4.7µF ceramic output capacitance for stable regulation under dynamic loads.
Technical Context
The MAX1976AETA130+T integrates a p-channel MOSFET pass transistor (RDS(ON) = 0.33Ω) enabling load-independent quiescent current (90µA typ) and low dropout performance. Its internal error amplifier compares feedback against a precision reference to regulate output voltage with ±0.5% accuracy across -40°C to +85°C.
A dedicated reset comparator monitors VOUT, asserting active-low RESET when output falls below 82.5% of nominal (1.30V → 1.07V threshold), with 70ms minimum delay after regulation is achieved. Shutdown control via SHDN pin reduces supply current to <1µA while actively pulling OUT to GND through a 1.5kΩ resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.30V (factory-preset, trimmed internally; no external resistors required) |
| Max Output Current | 300mA continuous - supports microprocessor core rails and memory I/O in space-constrained portable designs |
| Dropout Voltage | 100mV at 300mA - enables operation down to 1.40V input for extended Li-ion battery life |
| Output Accuracy | ±0.5% at +25°C, ±2.5% over full load/line/temp - ensures reliable logic-level compliance for 1.3V-core SoCs |
| RESET Delay | 70ms (min) after VOUT reaches regulation - meets boot sequencing requirements for ARM-based applications |
| Quiescent Current | 90µA typical at 300mA load - maintains efficiency during active operation without sacrificing regulation fidelity |
| Input Voltage Range | 1.62V to 3.6V - compatible with single-cell Li-ion, Li-polymer, and regulated 1.8V/2.5V/3.3V intermediate rails |
Pinout & Package
MAX1976AETA130+T is packaged in a 6-pin thin SOT23-6 (Z6+1) package, 1.1mm max height, with exposed pad not present. Pin 1 is IN; Pin 2 is GND; Pin 3 is SHDN; Pin 4 is RESET; Pin 5 is I.C. (internally connected, leave unconnected or tie to GND); Pin 6 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Regulator input supply | Accepts 1.62V–3.6V; requires ≥1µF ceramic bypass to GND for stability |
| 2 (GND) | Power ground and thermal path | Serves as heatsink; must connect to large PCB copper area to sustain 300mA at elevated ambient |
| 3 (SHDN) | Active-low shutdown control | Pull low to reduce IQ to <1µA; internal 1.5kΩ pull-down on OUT during shutdown |
| 4 (RESET) | Open-drain reset flag output | Asserts low when VOUT < 1.07V; releases 70ms after VOUT ≥ 1.30V; requires external pull-up |
| 5 (I.C.) | Internally connected node | No functional connection; leave floating or tie to GND per layout best practice |
| 6 (OUT) | Regulated output | Delivers up to 300mA at 1.30V; requires 4.7µF low-ESR ceramic capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| pMOS pass transistor | Eliminates base-drive current loss; enables 90µA quiescent current independent of load and dropout |
| Factory-trimmed 1.30V output | Removes need for external feedback resistors; reduces BOM count and layout area in compact devices |
| 70ms RESET assertion delay | Guarantees clean power-on reset timing for microcontrollers requiring ≥50ms stabilization before release |
| Thermal shutdown with hysteresis | Turns off at +165°C; re-enables only after cooling by 15°C - prevents thermal cycling damage during overload |
| Logic-controlled shutdown | Reduces total system standby power by cutting regulator IQ to sub-µA level while maintaining fast wake-up |
Applications
| Smartphone Application Processor Core Rail | Handheld Medical Device Sensor Subsystem |
|---|---|
|
Use Scenario: Powers ARM Cortex-A series CPU core operating at 1.3V with dynamic current ranging 10mA–300mA during burst processing. IC Role / Device Role / Timing Role: Primary LDO regulator providing clean, low-noise 1.30V supply with precise tracking and fast transient response. Use Value: 100mV dropout extends usable battery voltage range; ±0.5% accuracy ensures consistent core performance across temperature and aging. |
Use Scenario: Supplies analog front-end (AFE) and low-power MCU in portable ECG monitor powered by coin cell or small Li-ion. IC Role / Device Role / Timing Role: Stable 1.30V bias source for precision ADC reference and signal chain amplifiers. Use Value: Ultra-low 90µA quiescent current preserves battery life in always-on monitoring mode; RESET flag synchronizes firmware initialization with power stability. |
| Industrial IoT Edge Node Microcontroller | Wearable Fitness Tracker Power Management |
|
Use Scenario: Provides regulated 1.30V rail for RISC-V MCU and BLE radio in battery-operated sensor gateway deployed in remote locations. IC Role / Device Role / Timing Role: Main system regulator with integrated power-good signaling for safe boot and brownout recovery. Use Value: 70ms RESET delay eliminates false resets during input voltage ramp-up; thermal protection prevents failure in sealed enclosures. |
Use Scenario: Delivers 1.30V to motion sensor hub and display driver in ultra-thin wrist-worn device with strict height constraints. IC Role / Device Role / Timing Role: Compact-area LDO enabling direct battery-to-core conversion in 1.1mm-profile SOT23 package. Use Value: Thin SOT23-6 footprint (<1.1mm height) satisfies mechanical stack-up requirements; 1.62V min input supports deep discharge of Li-polymer cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0513PDBVR | 1.3V fixed output, 200mA max, 170mV dropout at 200mA, 500nA shutdown current | Limited to lower current; better for ultra-low-power sleep modes but insufficient for 300mA peak loads | Select if system peak current ≤200mA and nanoamp shutdown dominates power budget |
| MCP1700T-1302E/TT | 1.3V fixed output, 250mA max, 600mV dropout at 250mA, SOT23-5 (no RESET) | Higher dropout limits battery utilization; lacks integrated RESET function and thermal protection | Choose only if RESET and thermal safety are handled externally and input voltage margin >0.6V |
Compared with TPS7A0513PDBVR and MCP1700T-1302E/TT, MAX1976AETA130+T uniquely combines 300mA capability, 100mV dropout, factory-trimmed 1.30V accuracy, and 70ms RESET in a 6-pin SOT23 - making it the only option meeting all four requirements simultaneously for high-efficiency portable core-rail designs.
Availability
MAX1976AETA130+T is available at Aetrix Electronics and suitable for smartphone power management, handheld medical instrumentation, industrial IoT edge nodes, and wearable fitness trackers requiring stable component supply with long-term lifecycle assurance.
Supply support for MAX1976AETA130+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, mixed-signal, and power-management ICs for demanding industrial, communications, and consumer applications.
The MAX1976A belongs to Maxim's low-input-voltage LDO family, engineered specifically for battery-powered portable electronics where minimal dropout, tight output tolerance, and integrated power supervision are critical.
FAQ
What is the exact output voltage of MAX1976AETA130+T?
The MAX1976AETA130+T delivers a factory-trimmed, fixed output voltage of 1.30V. This value is laser-trimmed during production and specified with ±0.5% accuracy at +25°C and ±2.5% over full load, line, and temperature range (-40°C to +85°C). No external resistors are required or supported for adjustment.
Does MAX1976AETA130+T include thermal protection?
Yes, MAX1976AETA130+T incorporates thermal-overload protection that disables the pass transistor when junction temperature exceeds +165°C. After shutdown, the device remains off until temperature drops by 15°C, then resumes regulation - preventing destructive thermal cycling during sustained overload conditions.
What is the RESET output behavior of MAX1976AETA130+T during power-up?
During power-up, MAX1976AETA130+T asserts active-low RESET until the output reaches 1.30V and remains stable. RESET is then de-asserted after a guaranteed minimum delay of 70ms. If VOUT subsequently falls below 82.5% of nominal (1.07V), RESET immediately re-asserts.
Can MAX1976AETA130+T operate from a single-cell Li-ion battery?
Yes, MAX1976AETA130+T operates from 1.62V to 3.6V input, covering the full discharge curve of a single-cell Li-ion or Li-polymer battery (typically 4.2V down to ~2.8V). Its 100mV dropout allows regulation down to 1.40V input, extending usable runtime near end-of-discharge.
What package type is used for MAX1976AETA130+T?
MAX1976AETA130+T uses the 6-pin thin SOT23-6 package (Z6+1 outline), measuring 2.9mm × 1.6mm × 1.1mm max height. It features pins IN, GND, SHDN, RESET, I.C., and OUT - with no exposed thermal pad - and is RoHS-compliant and lead-free.
MAX1976AETA130+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 1.3V
- 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:
- 8-TDFN-EP (2x2)
MAX1976AETA130+T FAQ
1.How can I place an order for MAX1976AETA130+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1976AETA130+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 MAX1976AETA130+T reliable?
The price and inventory of MAX1976AETA130+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1976AETA130+T is usually 5 days.
3.What payment methods are accepted for MAX1976AETA130+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1976AETA130+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1976AETA130+T?
MAX1976AETA130+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1976AETA130+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 MAX1976AETA130+T?
For technical support, including MAX1976AETA130+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1976AETA130+T requirements.
6.How does Aetrix verify that MAX1976AETA130+T is sourced from the original manufacturer or authorized distributors?
All MAX1976AETA130+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 MAX1976AETA130+T meets industry standards.
7.What is the process for return or replacement of MAX1976AETA130+T?
All MAX1976AETA130+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1976AETA130+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 MAX1976AETA130+T part is unused and in its original packaging.
Return procedure for MAX1976AETA130+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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