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Analog Devices Inc./Maxim Integrated MAX8867EZK36+T
- Part No.:
- MAX8867EZK36+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX8867EZK36+T.pdf
- Description:
- IC REG LIN 3.6V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
MAX8867EZK36+T from Maxim Integrated is a low-noise, low-dropout linear regulator with 3.6V preset output voltage, 150mA output current capability, 30µVRMS output noise, and 165mV dropout at full load. It uses an internal P-channel MOSFET pass transistor and operates from 2.5V to 6.5V input, targeting battery-powered portable electronics requiring stable, clean power rails.
For engineers reviewing the MAX8867EZK36+T datasheet, MAX8867EZK36+T pinout, MAX8867EZK36+T application, or MAX8867EZK36+T equivalent, key selection criteria include its thin SOT23-5 package, 10nA shutdown current, reverse battery protection, thermal shutdown behavior, and BP-pin noise-filtering architecture for ultra-low-noise operation in sensitive analog or RF subsystems.
Technical Context
The MAX8867EZK36+T implements a bandgap-referenced error amplifier driving a P-channel MOSFET pass element, enabling dropout voltage proportional to RDS(ON) × IOUT (165mV typical at 150mA). Its BP pin connects to an internal 200kΩ resistor forming an 80Hz low-pass filter with an external 0.01µF capacitor, directly reducing output voltage noise.
It integrates reverse-battery protection limiting reverse current to 1mA, thermal shutdown at +155°C with +15°C hysteresis, and short-circuit protection with indefinite fault tolerance. The device maintains 100µA operating supply current across all load and dropout conditions, independent of output current or input-output differential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.6V ±1.4% - factory-preset, no external feedback required |
| Max Output Current | 150mA - supports moderate-power analog/RF ICs without derating |
| Dropout Voltage | 165mV at 150mA - enables operation down to 3.76V input with 3.6V output |
| Output Noise | 30µVRMS (10Hz–100kHz) - suitable for ADC references and PLL VCO supplies |
| Quiescent Current | 100µA - constant across load and dropout, optimizing battery runtime |
| Shutdown Current | 10nA - enables multi-year shelf life in always-on portable devices |
| Input Voltage Range | 2.5V to 6.5V - compatible with single Li-ion, dual Alkaline/NiMH, or USB-powered systems |
Pinout & Package
SOT23-5 thin package (JEDEC MO-178AA), 2.9mm × 1.6mm × 0.95mm body height, GND pin serves as thermal pad and electrical ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SHDN | Active-low shutdown control | Logic-low (<0.4V) reduces IQ to 10nA; on MAX8868 only, triggers active output discharge |
| 2 GND | Power ground & thermal path | Must connect to large PCB copper area for thermal dissipation and noise reduction |
| 3 IN | Regulator input supply | Accepts 2.5V–6.5V; requires ≥1µF bypass capacitor to ground |
| 4 OUT | Regulated output | Delivers up to 150mA; requires 1µF–10µF low-ESR capacitor for stability |
| 5 BP | Noise-reduction bypass | Connects to 0.01µF ceramic capacitor to reduce output noise via internal 200kΩ RC filter |
Key Features
| Feature | Design Value |
|---|---|
| Reverse battery protection | Limits reverse current to ≤1mA when VIN or SHDN falls below GND, preventing damage in miswired battery compartments |
| Thermal shutdown with hysteresis | Shuts down at +155°C junction temperature and re-enables after cooling by +15°C, enabling safe pulsed operation under overload |
| P-channel MOSFET pass element | Eliminates base-drive current loss, enabling constant 100µA IQ regardless of load or dropout condition |
| BP-pin noise filtering | Internal 200kΩ resistor + external 0.01µF capacitor forms 80Hz low-pass filter, reducing broadband noise to 30µVRMS |
| Short-circuit protected output | Withstands indefinite output-to-ground shorts without damage due to integrated current limiting (160–500mA range) |
Applications
| Cellular Telephones | Hand-Held Instruments |
|---|---|
Use Scenario: Powering RF transceiver bias rails and analog front-end circuitry in GSM/EDGE handsets. IC Role / Device Role / Timing Role: Low-noise LDO supplying clean 3.6V to VCO tuning circuits and ADC reference buffers. Use Value: 30µVRMS noise prevents phase noise degradation in RF signal chains, preserving EVM and adjacent channel leakage. | Use Scenario: Providing regulated supply to precision op-amps and 16-bit SAR ADCs in portable multimeters. IC Role / Device Role / Timing Role: Stable 3.6V rail generator with <±1.4% accuracy and minimal load regulation drift. Use Value: 0.01%/mA load regulation ensures measurement accuracy remains unaffected by varying display backlight or sensor drive currents. |
| PCMCIA Cards | Palmtop Computers |
Use Scenario: Powering 3.3V–3.6V interface logic and flash memory in hot-pluggable PCMCIA Type II cards. IC Role / Device Role / Timing Role: Input-tolerant LDO with reverse battery protection and fast transient response. Use Value: Reverse protection prevents card damage during incorrect insertion; 12mV load transient overshoot ensures reliable SRAM write cycles during bus arbitration. | Use Scenario: Supplying core logic and touchscreen controller in battery-operated palmtop PDAs. IC Role / Device Role / Timing Role: Primary system LDO with 10nA shutdown mode for long standby duration. Use Value: 10nA shutdown current extends shelf life beyond 5 years without battery replacement or recharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8867EUK36-T | Same electrical specs, but in regular-height SOT23-5 (1.1mm vs. 0.95mm); 7.1mW/°C thermal derating vs. 9.1mW/°C | Preferred where board clearance allows taller package and higher thermal resistance is acceptable | Select for legacy layout compatibility or when thermal margin exceeds requirement |
| Torex XC6206P362MR-G | 3.6V fixed output, 150mA, but higher 50µVRMS noise and no BP pin; 1.2µA quiescent current vs. 100µA | Better suited for cost-sensitive, non-noise-critical digital rails; lacks reverse-battery protection | Choose only if noise sensitivity is low and reverse polarity risk is eliminated by system design |
Compared with MAX8867EZK36+T, the MAX8867EUK36-T offers identical performance in a mechanically taller package with lower thermal efficiency, while the XC6206P362MR-G trades critical noise and protection features for lower quiescent current and cost-making it unsuitable for RF or battery-reversal-prone applications.
Availability
MAX8867EZK36+T is available at Aetrix Electronics and suitable for cellular telephones, handheld instruments, and PCMCIA cards requiring stable component supply, long-term lifecycle support, and guaranteed parametric compliance over -40°C to +85°C.
Supply support for MAX8867EZK36+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 high-performance analog and mixed-signal semiconductor solutions for power, sensing, connectivity, and security applications.
The MAX8867/MAX8868 product line targets battery-powered portable electronics, delivering ultra-low-noise, low-quiescent-current regulation with integrated protection features in space-constrained SOT23 packages.
FAQ
What is the exact output voltage tolerance of the MAX8867EZK36+T?
The MAX8867EZK36+T has a factory-preset output voltage of 3.6V with ±1.4% accuracy over the full operating temperature range (-40°C to +85°C) and line/load conditions. This specification is 100% production tested at +25°C and guaranteed across temperature using Statistical Quality Control correlation methods. The MAX8867EZK36+T does not require external resistors to set output voltage.
Does the MAX8867EZK36+T include reverse battery protection?
Yes, the MAX8867EZK36+T includes integrated reverse battery protection that limits reverse current to ≤1mA when either the IN or SHDN pin falls below ground potential. This protection actively disconnects internal circuitry and parasitic paths, preventing damage during incorrect battery installation-a critical feature for consumer handheld devices.
What capacitor values are required for stable operation of the MAX8867EZK36+T?
The MAX8867EZK36+T requires a minimum 1µF ceramic input capacitor (X7R/X5R dielectric recommended) and a 1µF–10µF output capacitor with ≤0.2Ω ESR. A 0.01µF ceramic capacitor must be placed on the BP pin. For full-temperature stability with 150mA loads, 1µF X7R is sufficient; Z5U/Y5V dielectrics may require ≥2.2µF below -10°C.
How does the BP pin function in the MAX8867EZK36+T?
The BP pin on the MAX8867EZK36+T connects internally to a 200kΩ resistor, forming an RC low-pass filter with an external 0.01µF capacitor. This 80Hz filter reduces high-frequency noise coupling into the bandgap reference, enabling the specified 30µVRMS output noise. Capacitor values >0.1µF increase startup time without improving noise performance and are not recommended.
Is the MAX8867EZK36+T pin-compatible with other regulators in the same family?
Yes, the MAX8867EZK36+T is pin-compatible with the MAX8867EUK36-T (regular SOT23-5), MAX8868EZK36+T (adds auto-discharge), and MAX8868EUK36-T. All share identical pinout (SHDN, GND, IN, OUT, BP) and footprint. The only functional difference is the absence of auto-discharge in MAX8867 variants-no PCB changes are needed when substituting within the MAX8867 series.
MAX8867EZK36+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.165V @ 150mA (Typ)
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 180 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- 63dB (10kHz)
- Control Features:
- Enable
- 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:
- TSOT-23-5
MAX8867EZK36+T FAQ
1.How can I place an order for MAX8867EZK36+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8867EZK36+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 MAX8867EZK36+T reliable?
The price and inventory of MAX8867EZK36+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8867EZK36+T is usually 5 days.
3.What payment methods are accepted for MAX8867EZK36+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8867EZK36+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8867EZK36+T?
MAX8867EZK36+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8867EZK36+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 MAX8867EZK36+T?
For technical support, including MAX8867EZK36+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8867EZK36+T requirements.
6.How does Aetrix verify that MAX8867EZK36+T is sourced from the original manufacturer or authorized distributors?
All MAX8867EZK36+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 MAX8867EZK36+T meets industry standards.
7.What is the process for return or replacement of MAX8867EZK36+T?
All MAX8867EZK36+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8867EZK36+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 MAX8867EZK36+T part is unused and in its original packaging.
Return procedure for MAX8867EZK36+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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