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Analog Devices Inc./Maxim Integrated MAX8892EXK+T
- Part No.:
- MAX8892EXK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX8892EXK+T.pdf
- Description:
- IC REG LIN POS ADJ 150MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,295
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Product details
Overview
The MAX8892EXK+T from Maxim Integrated is an adjustable-output, low-dropout linear regulator featuring a p-channel MOSFET pass device, 150mA guaranteed output current, 120mV dropout at 120mA load, and 40µA ground current - designed for space-constrained battery-powered systems such as Bluetooth radios and digital cameras.
For engineers reviewing the MAX8892EXK+T datasheet, MAX8892EXK+T pinout, MAX8892EXK+T application, or MAX8892EXK+T equivalent, this page delivers verified specifications, SC70 package layout, thermal/overcurrent protection behavior, PSRR performance at 10kHz, and design-critical capacitor stability guidance with 1µF ceramic support.
Technical Context
The MAX8892EXK+T implements a bandgap-referenced error amplifier driving a 1Ω (typ) p-channel MOSFET pass transistor, enabling ultra-low quiescent current and dropout voltage proportional to RDS(ON) × ILOAD. Its feedback architecture accepts external resistor dividers to set output voltages from 1.5V to 4.5V using VREF = 1.225V.
It integrates shutdown logic that disables reference, error amplifier, and gate drive when SHDN is pulled low - reducing supply current below 1µA - plus thermal shutdown at +160°C with 10°C hysteresis and foldback current limiting up to 200mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Guaranteed 150mA continuous - supports power rails for baseband processors and RF front-ends in portable radios. |
| Dropout Voltage | 120mV at 120mA load - enables operation down to ~2.1V input for a 2.0V output, extending usable battery life in single-cell Li-ion systems. |
| Ground Current | 40µA at light load - minimizes standby power loss in always-on subsystems like Bluetooth audio accessories. |
| PSRR | 65dB at 10kHz - suppresses switching noise from DC-DC converters feeding intermediate supply rails. |
| Input Voltage Range | 2V to 6V - compatible with Li-ion (2.7–4.2V), Li-polymer, and dual-AA alkaline inputs without external pre-regulation. |
| Output Accuracy | ±3% over -40°C to +85°C - ensures stable core voltage for microcontrollers and sensors across industrial temperature range. |
| Stability Capacitor | 1µF ceramic on output - eliminates need for tantalum or large electrolytics, reducing PCB area and cost in SC70 footprint designs. |
Pinout & Package
Supplied in a 5-pin SC70 package (outline 21-0076, land pattern 90-0188), the MAX8892EXK+T uses a compact 2.0mm × 2.1mm footprint with 0.65mm lead pitch and RoHS-compliant lead-free finish (+T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Unregulated Input Supply | Accepts 2V–6V input; requires 1µF ceramic bypass to GND for line transient suppression and PSRR optimization. |
| 2 GND | Ground Reference & Thermal Path | Serves as primary return path and primary heat conduction route - must connect to large copper pour or ground plane. |
| 3 SHDN | Active-Low Shutdown Control | Pull ≤0.4V to disable regulator; draws <0.05µA in shutdown - enables system-level power gating in portable devices. |
| 4 FB | Adjustable Output Feedback Node | Connects to external resistor divider (R1/R2); sets VOUT = 1.225V × (1 + R1/R2) - supports precise voltage tuning for mixed-signal ICs. |
| 5 OUT | Regulated Output Voltage | Delivers user-defined output (1.5V–4.5V); requires 1µF ceramic capacitor to GND for stability across full load and temperature range. |
Key Features
| Feature | Design Value |
|---|---|
| p-Channel MOSFET Pass Device | Eliminates base-drive current loss - maintains 40µA ground current even under heavy load, unlike PNP-based LDOs. |
| 1µF Ceramic Stability | Enables use of small, low-ESR, high-reliability X7R/X5R capacitors instead of larger, aging-prone tantalum types. |
| 65dB PSRR @ 10kHz | Rejects ripple from switching regulators powering adjacent analog or RF circuitry without additional LC filtering. |
| Thermal + Current Protection | Prevents damage during sustained overload or poor PCB thermal design - shuts down at +160°C and limits output to 200mA. |
| Low Shutdown Current | Draws <1µA when disabled - critical for long-term battery hold-up in remote sensors and wearables. |
Applications
| Bluetooth Portable Radios | Digital Cameras |
|---|---|
|
Use Scenario: Powering RF transceiver ICs and audio codecs in compact Bluetooth headsets and speaker docks. IC Role / Device Role / Timing Role: Primary 2.8V or 3.3V LDO supplying noise-sensitive RF and audio blocks. Use Value: 65dB PSRR at 10kHz prevents audible switching noise coupling into audio paths; 120mV dropout extends talk time on single-cell Li-ion. |
Use Scenario: Providing clean, adjustable bias for image sensor analog front-ends and ISP cores. IC Role / Device Role / Timing Role: Adjustable LDO delivering precisely tuned voltage (e.g., 2.5V or 2.8V) to CMOS image sensors. Use Value: External FB network allows fine-tuning to match sensor VANA requirements; ±3% accuracy ensures consistent ADC reference stability. |
| Portable Medical Sensors | Industrial Handheld Terminals |
|
Use Scenario: Regulating power for low-power ECG/SpO₂ analog signal chains operating from coin-cell or rechargeable batteries. IC Role / Device Role / Timing Role: Ultra-low-IQ LDO maintaining sensor bias during multi-day battery operation. Use Value: 40µA ground current minimizes self-discharge; SC70 footprint saves board space in sealed, miniaturized enclosures. |
Use Scenario: Supplying configurable logic rails (e.g., 1.8V FPGA I/O, 3.3V display interface) in ruggedized handheld scanners. IC Role / Device Role / Timing Role: Flexible output LDO supporting multiple voltage domains via external resistor selection. Use Value: Single BOM part replaces multiple fixed-voltage LDOs; thermal shutdown protects against overheating in sealed housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B282MR-G | Fixed 2.8V output only; no FB pin; 150mA rating; 250mV dropout at 100mA. | Lacks adjustability - suitable only where 2.8V is fixed requirement; smaller 4-pin SOT-25 package. | Select when output voltage is fixed and minimal footprint is prioritized over flexibility. |
| Analog Devices ADP125ARHZ-RI | Adjustable (1.0V–5.5V); 500mA output; 135mV dropout at 300mA; 45µA quiescent current. | Higher current capability and wider VOUT range, but larger 6-pin SOT-23-6 package and higher minimum load. | Select when >150mA load or sub-1.5V outputs are required; verify thermal derating in SC70-equivalent layout. |
Compared with the Torex XC6219B282MR-G and Analog Devices ADP125ARHZ-RI, the MAX8892EXK+T uniquely balances SC70 size, true adjustability, ultra-low IQ, and proven 1µF ceramic stability - making it optimal for compact, battery-sensitive designs requiring precise voltage tuning.
Availability
The MAX8892EXK+T is available at Aetrix Electronics and suitable for Bluetooth portable radios, digital cameras, portable medical sensors, and industrial handheld terminals requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for MAX8892EXK+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 applications.
The MAX8892EXK+T belongs to Maxim's high-PSRR, low-IQ LDO family - engineered specifically for battery-powered portable electronics demanding minimal board area, extended runtime, and robust transient immunity.
FAQ
What output voltage range does the MAX8892EXK+T support?
The MAX8892EXK+T supports an adjustable output voltage range from 1.5V to 4.5V, set by an external resistor divider connected to the FB pin. The internal 1.225V reference and feedback equation VOUT = 1.225V × (1 + R1/R2) enable precise tuning - for example, R1 = 121kΩ and R2 = 100kΩ yields 2.7V. This flexibility makes the MAX8892EXK+T ideal for mixed-voltage systems where fixed-output LDOs would require multiple SKUs.
Can the MAX8892EXK+T operate stably with only 1µF output capacitance?
Yes, the MAX8892EXK+T is fully stable with a 1µF ceramic output capacitor across its entire operating range (–40°C to +85°C, 1mA–150mA load), provided X7R or X5R dielectric is used. This eliminates reliance on larger, less reliable tantalum capacitors. The device's internal compensation and p-channel architecture allow this minimal capacitance - confirmed in the "Region of Stable COUT ESR vs. Load Current" graph in the datasheet. Using Z5U/Y5V dielectrics may require ≥2.2µF below –10°C.
How does the shutdown function work on the MAX8892EXK+T?
The MAX8892EXK+T enters ultra-low-power shutdown mode when the SHDN pin is pulled to ≤0.4V (logic low), disabling the internal bandgap reference, error amplifier, gate driver, and pass transistor. In this state, output goes high-impedance and total supply current drops below 1µA - critical for battery preservation in sleep modes. To resume regulation, pull SHDN ≥1.5V (logic high). The SHDN pin draws only 0.01µA at +85°C, minimizing control-line loading.
What protection features are integrated into the MAX8892EXK+T?
The MAX8892EXK+T integrates three key protections: (1) Foldback current limiting - clamps output to 200mA during overload or short-circuit, preventing damage; (2) Thermal shutdown - disables output when junction temperature exceeds +160°C, re-enabling after 10°C cooldown; and (3) Absolute maximum input rating of +7V - safeguarding against transient surges. These features ensure robust operation in unregulated battery or adapter-fed systems without external protection circuitry.
Is the MAX8892EXK+T pin-compatible with the MAX8891 series?
No, the MAX8892EXK+T is not pin-compatible with MAX8891 variants. While both share the same 5-pin SC70 package, Pin 4 is FB (feedback) on the MAX8892EXK+T but N.C. (no connection) on all MAX8891 versions. Swapping them without PCB revision will cause open-feedback failure or incorrect regulation. The MAX8892EXK+T requires external resistors on FB, whereas MAX8891 parts use internal dividers - confirming functional and physical incompatibility despite identical outline.
MAX8892EXK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- 4.5V
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 40 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX8892EXK+T FAQ
1.How can I place an order for MAX8892EXK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8892EXK+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 MAX8892EXK+T reliable?
The price and inventory of MAX8892EXK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8892EXK+T is usually 5 days.
3.What payment methods are accepted for MAX8892EXK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8892EXK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8892EXK+T?
MAX8892EXK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8892EXK+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 MAX8892EXK+T?
For technical support, including MAX8892EXK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8892EXK+T requirements.
6.How does Aetrix verify that MAX8892EXK+T is sourced from the original manufacturer or authorized distributors?
All MAX8892EXK+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 MAX8892EXK+T meets industry standards.
7.What is the process for return or replacement of MAX8892EXK+T?
All MAX8892EXK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8892EXK+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 MAX8892EXK+T part is unused and in its original packaging.
Return procedure for MAX8892EXK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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