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Analog Devices Inc./Maxim Integrated MAX1589AETT150+T
- Part No.:
- MAX1589AETT150+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX1589AETT150+T.pdf
- Description:
- IC REG LINEAR 1.5V 500MA 6TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,535
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Product details
Overview
MAX1589AETT150+T from Maxim Integrated is a low-dropout linear regulator with preset 1.5V output, delivering guaranteed 500mA continuous current from 1.62V–3.6V input, featuring ±0.5% initial accuracy, 175mV dropout at full load, and active-low open-drain RESET output asserted for ≥70ms after regulation-used in notebook computer core logic power rails.
For engineers reviewing the MAX1589AETT150+T datasheet, MAX1589AETT150+T pinout, MAX1589AETT150+T application, or MAX1589AETT150+T equivalent, key selection criteria include low-input-voltage operation down to 1.62V, thermal-overload protection at +165°C, shutdown supply current <1µA, and compatibility with 4.7µF ceramic output capacitance for stable 1.5V core supply in space-constrained portable designs.
Technical Context
The MAX1589AETT150+T integrates a p-channel MOSFET pass transistor (RDS(ON) = 0.33Ω) enabling low dropout and supply current independent of load or dropout voltage. Its error amplifier compares internal reference against feedback from fixed 1.5V output divider, driving the gate to regulate output precisely.
RESET functionality uses a dedicated power-good comparator monitoring VOUT, asserting low when VOUT falls below 82.5% of nominal (1.2375V), with 70–160ms delay on power-up. Shutdown control is active-low, disconnecting output and pulling it to GND via 1.5kΩ resistor while reducing IQ to <1µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.50V - no external resistors required; matches core voltage requirements of ARM9/ARM11 processors and LPDDR memory I/O. |
| Max Output Current | 500mA continuous - supports high-pulse loads in digital still camera image sensor bias rails without dropout. |
| Dropout Voltage | 175mV at 500mA - enables operation down to 1.675V input, extending usable life of single-cell Li-ion batteries. |
| Output Accuracy | ±0.5% initial - ensures reliable CPU core voltage margining within JEDEC JESD8-12B specification limits. |
| Ground Current | 90µA typical at 500mA - minimizes quiescent loss in always-on subsystems such as real-time clock backup supplies. |
| RESET Delay | 70ms minimum - satisfies Intel Mobile Platform Power Management (MPPM) reset timing requirement for embedded controllers. |
| Thermal Shutdown | +165°C with 15°C hysteresis - prevents permanent damage during sustained overload in sealed handheld enclosures. |
Pinout & Package
MAX1589AETT150+T is packaged in a 6-pin, 3mm × 3mm thin DFN with exposed thermal pad (EP), rated for 1.951W max power dissipation at +70°C ambient. The package features low-profile height (<0.8mm) and optimized thermal resistance (θJA ≈ 41°C/W on 1in² copper).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EP) | Exposed Pad | Thermal ground and mechanical anchor; must be soldered to PCB ground plane for safe 500mA operation. |
| 2 | OUT | Regulated 1.5V output; requires 4.7µF low-ESR ceramic capacitor to GND for stability and transient response. |
| 3 | SHDN | Active-low enable; pulled high internally to IN; drives <1µA shutdown current when grounded. |
| 4 | GND | Power and signal ground; connects to EP for thermal conduction; forms return path for RESET sink current. |
| 5 | RESET | Open-drain active-low flag; sinks ≥100µA at 100mV VOL; requires external pull-up for µP reset input interface. |
| 6 | IN | Input supply (1.62V–3.6V); bypassed with ≥1µF ceramic capacitor to GND to suppress source impedance noise. |
Key Features
| Feature | Design Value |
|---|---|
| p-Channel MOSFET Pass Transistor | RDS(ON) = 0.33Ω eliminates base-drive current, enabling 90µA quiescent current even at 500mA load and in dropout. |
| Logic-Controlled Shutdown | Reduces total system standby power by cutting regulator output and sinking OUT to GND via 1.5kΩ resistor. |
| Integrated RESET Monitor | Guarantees ≥70ms reset pulse after power-up and immediate assertion on brownout below 1.2375V (82.5% of 1.5V). |
| Thermal & Short-Circuit Protection | Auto-cycles output during sustained overload (165°C trip, 150°C recovery), preventing field failure in unventilated PDAs. |
| Low-ESR Capacitor Compatibility | Stable with 4.7µF ceramic output caps (ESR ≤30mΩ), eliminating need for tantalum or polymer alternatives in cost-sensitive designs. |
Applications
| Smartphone Application Processor Core Supply | Digital Still Camera Image Sensor Bias Rail |
|---|---|
Use Scenario: Powers ARM Cortex-A8/A9 application processor cores in smartphones requiring tight 1.5V tolerance and fast load-transient response during burst-mode imaging. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 1.5V core voltage with RESET signaling valid power to application processor's PMIC interface. Use Value: 35mV load-step overshoot (100mA→500mA) and 175mV dropout extend battery runtime by enabling use of depleted Li-ion cells down to 1.675V. |
Use Scenario: Supplies analog front-end and column driver circuitry in 12MP CMOS image sensors where low noise and precise voltage are critical for SNR. IC Role / Device Role / Timing Role: Low-noise (86µVRMS) 1.5V bias rail with PSRR >70dB @1kHz, synchronized to sensor frame timing via RESET deassertion. Use Value: ±0.5% output accuracy maintains consistent pixel gain calibration across temperature, reducing post-processing correction overhead. |
| Notebook Computer DDR Memory I/O Supply | Industrial Handheld Terminal Baseband IC Supply |
Use Scenario: Provides 1.5V I/O supply for DDR2/DDR3 memory interfaces in ultra-thin notebooks where board space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Compact DFN-packaged LDO with exposed thermal pad, delivering 500mA with minimal footprint and no heatsink. Use Value: 3mm × 3mm TDFN package fits beneath memory modules; 41°C/W θJA allows full-load operation without derating in 5mm-height chassis. |
Use Scenario: Powers baseband SoC in ruggedized industrial handheld terminals operating continuously in -40°C to +85°C environments. IC Role / Device Role / Timing Role: High-reliability 1.5V supply with thermal shutdown (+165°C) and wide-input (1.62V–3.6V) supporting primary/backup battery configurations. Use Value: Guaranteed operation over full industrial temperature range with no performance degradation; RESET output validates power integrity before firmware boot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B152MR-G | Fixed 1.5V, 500mA, but only 200mV dropout at 500mA and no RESET output. | Lacks power-good signaling; requires external reset IC for µP supervision. | Choose when RESET is not needed and lower BOM count outweighs missing supervision. |
| Analog Devices ADP160ACBZ-1.5-R7 | Fixed 1.5V, 150mA max output, 165mV dropout, no RESET, but offers 17µA IQ and better PSRR (80dB @1kHz). | Insufficient current for processor core rails; suited for low-power peripherals only. | Select only for sub-150mA loads where ultra-low quiescent current is prioritized over output capability. |
Compared with MAX1589AETT150+T, XC6219B152MR-G omits RESET functionality and has higher dropout, limiting battery end-of-life utilization; ADP160ACBZ-1.5-R7 provides superior PSRR and IQ but cannot support 500mA loads, making it unsuitable as a drop-in replacement in core power applications.
Availability
MAX1589AETT150+T is available at Aetrix Electronics and suitable for notebook computers, digital still cameras, cellular handsets, industrial handheld terminals, and DDR memory I/O supplies requiring stable component supply with lead-free packaging and industrial temperature support.
Supply support for MAX1589AETT150+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, computing, and portable applications.
The MAX1589A series was designed specifically for low-input-voltage, high-current LDO applications in battery-powered portable electronics, emphasizing minimal dropout, precision output, and integrated power-supervision functions.
FAQ
What is the exact output voltage of the MAX1589AETT150+T?
The MAX1589AETT150+T delivers a factory-trimmed fixed output voltage of 1.50V with ±0.5% initial accuracy over temperature and load. This value is confirmed by the "150" suffix in the part number per Maxim's Selector Guide and verified in the Electrical Characteristics table under Output Voltage Accuracy.
Does the MAX1589AETT150+T require external resistors to set its output voltage?
No, the MAX1589AETT150+T does not require external resistors. Its 1.50V output is internally trimmed and fixed, as indicated by the "150" suffix and confirmed in the Pin Description section stating "I.C." (Internally Connected) on pin 5, which is not used for feedback adjustment.
What is the maximum continuous output current supported by the MAX1589AETT150+T?
The MAX1589AETT150+T guarantees 500mA continuous output current across the full -40°C to +85°C operating temperature range, as specified in both the General Description and Electrical Characteristics tables under Maximum Output Current.
How does the RESET output of the MAX1589AETT150+T behave during power-up?
During power-up, the MAX1589AETT150+T asserts RESET low until the output reaches regulation, then holds it low for a guaranteed minimum of 70ms after VOUT exceeds 1.2375V (82.5% of 1.5V), as defined in the RESET Output section and Typical Operating Characteristics figure toc14.
What package type and dimensions does the MAX1589AETT150+T use?
The MAX1589AETT150+T uses a 6-pin thin DFN package measuring 3.0mm × 3.0mm × 0.80mm with an exposed thermal pad (EP), per the Package Information section and drawing code T633-1 in the datasheet.
MAX1589AETT150+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 140 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TDFN (3x3)
MAX1589AETT150+T FAQ
1.How can I place an order for MAX1589AETT150+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1589AETT150+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 MAX1589AETT150+T reliable?
The price and inventory of MAX1589AETT150+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1589AETT150+T is usually 5 days.
3.What payment methods are accepted for MAX1589AETT150+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1589AETT150+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1589AETT150+T?
MAX1589AETT150+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1589AETT150+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 MAX1589AETT150+T?
For technical support, including MAX1589AETT150+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1589AETT150+T requirements.
6.How does Aetrix verify that MAX1589AETT150+T is sourced from the original manufacturer or authorized distributors?
All MAX1589AETT150+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 MAX1589AETT150+T meets industry standards.
7.What is the process for return or replacement of MAX1589AETT150+T?
All MAX1589AETT150+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1589AETT150+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 MAX1589AETT150+T part is unused and in its original packaging.
Return procedure for MAX1589AETT150+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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