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Analog Devices Inc./Maxim Integrated MAX8860ESA33-T
- Part No.:
- MAX8860ESA33-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX8860ESA33-T.pdf
- Description:
- LOW-DROPOUT, 300 MILLI AMPERE LI
- Quantity:
- Payment:
- Shipping:
Inventory:1,800
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Product details
Overview
MAX8860ESA33-T from Maxim Integrated is a low-noise, low-dropout linear regulator with fixed 3.3V output, delivering up to 300mA from a 2.5V–6.5V input. It features 60µVRMS output noise, 105mV dropout at 200mA, and 120µA no-load supply current. Designed for battery-powered portable electronics, it integrates reverse-battery protection, thermal shutdown, and an open-drain FAULT indicator.
For engineers reviewing the MAX8860ESA33-T datasheet, MAX8860ESA33-T pinout, MAX8860ESA33-T application, or MAX8860ESA33-T equivalent, key selection criteria include dropout performance under 200mA load, fault-detection threshold tracking with load current, µMAX package thermal resistance (244°C/W), and compatibility with 2.2µF ceramic output capacitors.
Technical Context
The MAX8860ESA33-T uses an internal P-channel MOSFET pass transistor (RDS(ON) ≈ 0.5Ω) to achieve low dropout and eliminate base-drive current loss. Its Dual Mode™ architecture selects between fixed 3.3V regulation (SET = GND) and adjustable operation (1.25V–6.5V) via external resistor divider on the SET pin.
Regulation relies on a 1.25V bandgap reference and error amplifier comparing feedback voltage to that reference. Fault detection monitors both output regulation loss and insufficient input-to-output differential (e.g., <130mV at 200mA), pulling the open-drain FAULT pin low in either condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.30V ±3% over -40°C to +85°C - ensures stable core logic supply in portable devices. |
| Max Output Current | 300mA continuous - supports DSP cores and RF front-ends without thermal derating in µMAX package. |
| Dropout Voltage | 105mV at 200mA - enables operation down to 3.405V input for 3.3V output, extending battery life in single-cell Li-ion systems. |
| Output Noise | 60µVRMS (10Hz–100kHz) - minimizes jitter in analog/RF subsystems powered from this rail. |
| No-Load Supply Current | 120µA typical - preserves battery capacity during standby in handheld instruments and planners. |
| Shutdown Current | 10nA logic-controlled - enables ultra-low-power sleep modes without external leakage paths. |
| FAULT Threshold | Detects <130mV VIN–VOUT differential at 200mA - provides early warning before regulation collapse during battery sag. |
Pinout & Package
The MAX8860ESA33-T is housed in an 8-pin µMAX package (3.0mm × 3.0mm × 1.1mm max height), optimized for space-constrained portable designs. Thermal resistance θJA = 244°C/W requires PCB copper pour and vias for sustained 300mA operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4 - OUT | Regulated output node | Delivers 3.3V; requires 2.2µF low-ESR ceramic capacitor to GND for stability and transient response. |
| 2 - IN | Input power supply | Accepts 2.5V–6.5V; bypassed with 2.2µF capacitor to GND to suppress source impedance effects. |
| 3 - GND | Power and signal reference | Low-impedance return path; must be connected directly to PCB ground plane under IC body. |
| 5 - SET | Feedback mode selector | Grounded for fixed 3.3V output; open or high-impedance risks spurious mode switching. |
| 6 - CC | Compensation node | Connects 33nF capacitor to GND to stabilize control loop and reduce output noise. |
| 7 - SHDN | Logic enable/disable input | Driven low (<0.4V) to enter 10nA shutdown; tied to IN for always-on operation. |
| 8 - FAULT | Open-drain fault indicator | Pulled low during dropout, thermal shutdown, or current limit; requires external pull-up to OUT or bias rail. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Battery Protection | Limits reverse current to <1mA when VIN or SHDN falls below GND - prevents damage from misinserted batteries in handheld devices. |
| Dual Mode™ Operation | Hardware-selectable fixed 3.3V or adjustable 1.25V–6.5V output - eliminates BOM variants while supporting design reuse across voltage rails. |
| Thermal Shutdown Hysteresis | 20°C (170°C trip, ~150°C recovery) - prevents oscillation during overload and enables self-recovery after cooling. |
| Small Output Capacitor Support | Stable with 2.2µF ceramic (ESR <0.5Ω) - reduces board area and cost versus traditional LDOs requiring ≥10µF tantalum. |
| Low-Noise Integrator | 33nF CC capacitor lowers noise and improves line/load regulation - achieves 60µVRMS without additional filtering stages. |
Applications
| Wireless Handsets | DSP Core Power |
|---|---|
Use Scenario: Powering baseband processor and RF transceiver sections in GSM/UMTS handsets operating from single-cell Li-ion (2.7V–4.2V). IC Role / Device Role / Timing Role: Primary 3.3V LDO supplying digital core logic and analog front-end circuitry. Use Value: 105mV dropout extends usable battery voltage range by >150mV, delaying system brownout during discharge. | Use Scenario: Delivering clean 3.3V to low-power DSPs in portable audio recorders and voice-command modules. IC Role / Device Role / Timing Role: Low-noise voltage source for DSP I/O and memory interfaces where supply ripple affects ADC/DAC accuracy. Use Value: 60µVRMS noise prevents quantization errors in 16-bit audio processing paths. |
| PCMCIA Cards | Hand-Held Instruments |
Use Scenario: Regulating 3.3V for PCMCIA Type II card logic in laptops and industrial data loggers. IC Role / Device Role / Timing Role: Hot-swap compatible LDO with reverse-battery protection and fast start-up (<120µs). Use Value: Reverse protection prevents damage during card insertion/removal with incorrect orientation or charged bus lines. | Use Scenario: Powering microcontroller, LCD, and sensor interface in battery-operated multimeters and thermal imagers. IC Role / Device Role / Timing Role: Main system rail with FAULT output wired to MCU GPIO for real-time regulation monitoring. Use Value: FAULT signal enables firmware to log undervoltage events or initiate graceful shutdown before data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76333DBVR | 300mA, 3.3V fixed, 150mV dropout at 200mA, 170µA quiescent current, SOT-23-5 package | Higher dropout and quiescent current; lacks FAULT output and reverse-battery protection | Choose for cost-sensitive, non-battery-critical applications where µMAX footprint is not required. |
| MCP1700T-3302E/TT | 250mA, 3.3V fixed, 178mV dropout at 250mA, 1.6µA quiescent current, SOT-23-3 package | Lower current rating and no FAULT or reverse-battery protection; optimized for ultra-low-IQ, not low-noise | Choose only for micropower sensor nodes where 300mA peak current is never needed. |
Compared with TPS76333DBVR and MCP1700T-3302E/TT, the MAX8860ESA33-T uniquely combines 300mA delivery, 60µVRMS noise, integrated FAULT reporting, and reverse-battery protection in a thermally enhanced µMAX package-making it the only option for robust, noise-sensitive, battery-fed 3.3V rails demanding full fault visibility.
Availability
MAX8860ESA33-T is available at Aetrix Electronics and suitable for wireless handsets, DSP core power supplies, and PCMCIA card designs requiring stable component supply, long-term lifecycle support, and guaranteed parametric compliance over -40°C to +85°C.
Supply support for MAX8860ESA33-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, communications, and consumer applications.
The MAX8860ESA33-T belongs to Maxim's low-dropout linear regulator product line, engineered specifically for space-constrained, battery-powered portable electronics requiring low noise, low quiescent current, and comprehensive fault protection.
FAQ
What is the guaranteed output voltage tolerance for MAX8860ESA33-T over temperature?
The MAX8860ESA33-T guarantees a 3.3V output within ±3% over the full operating temperature range of -40°C to +85°C, as specified in the Electrical Characteristics table for the MAX8860EUA33 variant (identical to ESA33-T in output specification). This tolerance ensures reliable logic-level compatibility with 3.3V I/O standards across environmental extremes.
Can MAX8860ESA33-T operate with input voltages below 2.5V?
No, the MAX8860ESA33-T has a minimum input voltage rating of 2.5V per Absolute Maximum Ratings and Electrical Characteristics tables. Operation below 2.5V violates specifications and may result in loss of regulation, unpredictable FAULT behavior, or failure to maintain 3.3V output-even if dropout voltage appears sufficient.
Does MAX8860ESA33-T require an external compensation capacitor?
Yes, the MAX8860ESA33-T requires a 33nF capacitor connected between the CC pin and GND. This capacitor is essential for loop stability, low-noise operation, and minimizing load- and line-regulation errors. Omitting it causes instability, excessive output ripple, and degraded transient response.
How does the FAULT pin behave during thermal shutdown?
During thermal shutdown, the MAX8860ESA33-T pulls the FAULT pin low to indicate loss of regulation. The FAULT pin remains low until junction temperature cools by ~20°C (hysteresis), at which point regulation resumes and FAULT returns to high-impedance state. This allows host systems to detect and log thermal events without external monitoring circuitry.
Is MAX8860ESA33-T pin-compatible with other MAX8860 variants like MAX8860EUA25?
Yes, all MAX8860 variants-including MAX8860ESA33-T and MAX8860EUA25-share identical 8-pin µMAX pinout, package dimensions, and electrical interface. Only the preset output voltage differs; all other pin functions, timing, and protection features remain consistent across the family.
MAX8860ESA33-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- -
- Output Type:
- -
- Number of Regulators:
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- -
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX8860ESA33-T FAQ
1.How can I place an order for MAX8860ESA33-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8860ESA33-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 MAX8860ESA33-T reliable?
The price and inventory of MAX8860ESA33-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8860ESA33-T is usually 5 days.
3.What payment methods are accepted for MAX8860ESA33-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8860ESA33-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8860ESA33-T?
MAX8860ESA33-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8860ESA33-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 MAX8860ESA33-T?
For technical support, including MAX8860ESA33-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8860ESA33-T requirements.
6.How does Aetrix verify that MAX8860ESA33-T is sourced from the original manufacturer or authorized distributors?
All MAX8860ESA33-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 MAX8860ESA33-T meets industry standards.
7.What is the process for return or replacement of MAX8860ESA33-T?
All MAX8860ESA33-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8860ESA33-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 MAX8860ESA33-T part is unused and in its original packaging.
Return procedure for MAX8860ESA33-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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