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Analog Devices Inc./Maxim Integrated MAX8860ESA33
- Part No.:
- MAX8860ESA33
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX8860ESA33.pdf
- Description:
- LOW-DROPOUT, 300 MILLI AMPERE LI
- Quantity:
- Payment:
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Inventory:36,299
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Product details
Overview
MAX8860ESA33 from Maxim Integrated is a low-noise, low-dropout linear regulator with fixed 3.3V output, delivering up to 300mA from 2.5V–6.5V input. It features 60µVRMS output noise, 105mV dropout at 200mA, 120µA no-load supply current, and reverse battery protection. Used in DSP core power and handheld instrumentation where stable, low-noise 3.3V rail integrity is critical.
For engineers reviewing the MAX8860ESA33 datasheet, MAX8860ESA33 pinout, MAX8860ESA33 application, or MAX8860ESA33 equivalent, this page delivers verified electrical parameters, µMAX package layout, Dual Mode™ configurability (fixed/adjustable), FAULT indicator behavior, and real-world thermal and transient performance data - all confirmed from Maxim's official 19-1422 Rev 2 datasheet.
Technical Context
The MAX8860ESA33 integrates an internal P-channel MOSFET pass transistor (RDS(ON) ≈ 0.5Ω) enabling ultra-low quiescent current (<165µA across load and temperature) without base-drive losses. Its Dual Mode™ comparator selects between internal feedback (for fixed 3.3V output when SET = GND) and external resistor-divider feedback (for adjustable 1.25V–6.5V operation).
Regulation relies on a 1.25V bandgap reference, error amplifier, and integrator circuit stabilized by a mandatory 33nF CC capacitor. Fault detection monitors both regulation loss (dropout/current limit/thermal shutdown) and insufficient input-output differential (e.g., <130mV at 200mA), pulling open-drain FAULT low with 20mA sink capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.30V (±3% over –40°C to +85°C); ensures stable logic-level rail for 3.3V microcontrollers and peripherals. |
| Max Output Current | 300mA continuous; supports moderate-power DSP cores and interface ICs without thermal derating under typical PCB layout. |
| Dropout Voltage | 105mV at 200mA; enables usable battery life down to ~2.4V input for 3.3V output in Li-ion or dual-cell alkaline systems. |
| Output Noise | 60µVRMS (10Hz–100kHz); minimizes jitter and analog signal corruption in RF front-ends and precision ADC references. |
| Quiescent Current | 120µA typical at no load; extends standby time in always-on portable devices such as electronic planners. |
| Shutdown Current | 10nA logic-controlled; reduces system leakage during deep sleep modes without external switch control. |
| FAULT Threshold | Detects VIN–VOUT < 130mV at 200mA; provides early warning of impending dropout before regulation fails. |
Pinout & Package
MAX8860ESA33 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 copper pour and vias for >200mA sustained operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4 - OUT | Regulated output | Delivers 3.3V; requires 2.2µF low-ESR ceramic capacitor to GND for stability and transient response. |
| 2 - IN | Input supply | Accepts 2.5V–6.5V; bypass with 2.2µF capacitor to GND; reverse-battery protected below GND. |
| 3 - GND | Power ground | Common return for IN, OUT, and internal circuitry; must connect to low-impedance ground plane. |
| 5 - SET | Mode selection & feedback | Grounded for fixed 3.3V mode; connects to external resistor divider for adjustable output (1.25V–6.5V). |
| 6 - CC | Compensation node | Connects 33nF capacitor to GND; stabilizes loop, reduces noise, and prevents oscillation under load transients. |
| 7 - SHDN | Logic enable/disable | Drive low (≤0.4V) to enter 10nA shutdown; tie to IN for normal operation; 100nA bias current. |
| 8 - FAULT | Open-drain fault flag | Pulled low during dropout, thermal shutdown, or overload; requires external pull-up (e.g., 100kΩ to OUT). |
Key Features
| Feature | Design Value |
|---|---|
| Dual Mode™ configuration | Single device supports either factory-trimmed 3.3V output or user-adjustable 1.25V–6.5V via external resistors - eliminates BOM variants. |
| Reverse battery protection | Limits reverse current to <1mA if VIN or SHDN falls below GND - prevents damage from misinstalled batteries in handheld instruments. |
| Low-noise integrator architecture | 33nF CC capacitor actively compensates line/load transients while suppressing 10Hz–1MHz output noise to 60µVRMS. |
| Thermal hysteresis control | Shuts down at +170°C junction temp and re-enables after cooling by ~20°C - avoids latch-up during intermittent overload. |
| Small capacitor requirement | Stable with only 2.2µF output capacitance (X7R, ESR <0.5Ω) - reduces board area and cost vs. legacy LDOs needing ≥10µF. |
Applications
| Wireless Handsets | DSP Core Power |
|---|---|
|
Use Scenario: Primary 3.3V supply for baseband processor and RF transceiver in GSM/EDGE mobile handsets. IC Role / Device Role / Timing Role: Low-noise voltage regulator maintaining clean power for sensitive analog/RF sections and digital core logic. Use Value: 60µVRMS noise and 67dB PSRR at low frequencies prevent spectral regrowth and bit errors in transmit paths. |
Use Scenario: Dedicated 3.3V rail for TI C5000 or Analog Devices SHARC DSPs in portable audio analyzers. IC Role / Device Role / Timing Role: High-current LDO supplying DSP I/O and memory interfaces with tight load regulation (<0.0006%/mA). Use Value: 105mV dropout at 200mA allows operation down to 2.4V input, extending runtime on single-cell Li-ion batteries. |
| PCMCIA Cards | Hand-Held Instruments |
|
Use Scenario: On-card 3.3V regulator for PCMCIA Type II peripheral cards (e.g., GPS modems, wireless LAN adapters). IC Role / Device Role / Timing Role: Input-voltage-flexible LDO converting host 5V or battery 3.3V to regulated 3.3V for card logic. Use Value: Reverse battery protection and 10nA shutdown enable safe hot-swap insertion and zero-power storage. |
Use Scenario: Main supply for multimeter or oscilloscope front-end ASICs and LCD drivers in battery-powered test gear. IC Role / Device Role / Timing Role: Precision LDO providing stable 3.3V reference for ADCs and DACs with minimal drift over temperature. Use Value: ±3% output tolerance over –40°C to +85°C and <0.1% load regulation ensure measurement repeatability across operating conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, 300mA LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76333DBVR | Fixed 3.3V, 150mA max, 120mV dropout at 150mA, 17µVRMS noise, SOT-23-5 package. | Lower current and noise; lacks FAULT flag, reverse battery protection, and Dual Mode™ adjustability. | Select when board space is critical and 150mA suffices; not suitable for 300mA DSP loads or fault-monitoring systems. |
| MCP1700T-3302E/TT | Fixed 3.3V, 250mA max, 600mV dropout at 250mA, 30µVRMS noise, SOT-23-5, 1.6µA quiescent current. | Higher dropout limits usable input range; no FAULT output or reverse-battery protection; no adjustable mode. | Prefer for ultra-low-IQ battery monitoring circuits; avoid where input voltage may dip near 3.3V or fault visibility is required. |
Compared with TPS76333DBVR and MCP1700T-3302E/TT, the MAX8860ESA33 uniquely combines 300mA drive, 105mV dropout, integrated FAULT reporting, and Dual Mode™ flexibility - making it optimal for compact, battery-critical systems requiring both performance headroom and diagnostic capability.
Availability
MAX8860ESA33 is available at Aetrix Electronics and suitable for wireless handsets, DSP core power supplies, and hand-held instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed parametric compliance over –40°C to +85°C.
Supply support for MAX8860ESA33 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 ICs for power, sensing, and communication applications.
The MAX8860ESA33 belongs to Maxim's low-noise LDO family engineered specifically for battery-powered portable electronics demanding ultra-low dropout, sub-100µA quiescent current, and robust fault diagnostics.
FAQ
What is the guaranteed output voltage tolerance for MAX8860ESA33 over temperature?
The MAX8860ESA33 delivers 3.30V output with guaranteed tolerance of ±3% across the full operating temperature range of –40°C to +85°C, as specified in the Electrical Characteristics table (min 3.21V, max 3.38V at TA = –40°C to +85°C). This ensures reliable logic-level compatibility with 3.3V microcontrollers and interface ICs without external trimming.
Can MAX8860ESA33 be used in adjustable-output mode, and what is required?
Yes, the MAX8860ESA33 supports adjustable output from 1.25V to 6.5V using external resistors on the SET pin. To configure it, disconnect SET from GND and connect a voltage divider (e.g., R1 = 100kΩ, R2 = 62.5kΩ for 3.3V) between OUT and GND, with the midpoint at SET. The internal 1.25V reference sets VOUT = 1.25V × (1 + R1/R2).
What is the minimum output capacitor required for stable operation of MAX8860ESA33?
The MAX8860ESA33 requires a minimum 2.2µF ceramic output capacitor (X7R, ESR <0.5Ω) for stable operation across –40°C to +85°C and up to 300mA load. Larger values (e.g., 10µF) improve transient response and PSRR at high frequencies but are not mandatory for basic regulation.
How does the FAULT pin behave during thermal shutdown on MAX8860ESA33?
During thermal shutdown, the MAX8860ESA33 pulls the open-drain FAULT pin low to indicate loss of regulation. FAULT remains low until junction temperature drops ~20°C below the +170°C trip point, at which point regulation resumes and FAULT returns to high-impedance state - enabling external microcontroller polling or LED alerting.
Does MAX8860ESA33 require an input capacitor, and what value is recommended?
Yes, the MAX8860ESA33 requires a 2.2µF ceramic input capacitor (X7R, 16V rating) placed close to the IN and GND pins. This capacitor suppresses input ripple, prevents instability due to source impedance, and supports fast line-transient response - especially critical when powered from switching regulators or long battery traces.
MAX8860ESA33 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 FAQ
1.How can I place an order for MAX8860ESA33 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8860ESA33 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 reliable?
The price and inventory of MAX8860ESA33 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8860ESA33 is usually 5 days.
3.What payment methods are accepted for MAX8860ESA33?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8860ESA33 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8860ESA33?
MAX8860ESA33 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8860ESA33 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?
For technical support, including MAX8860ESA33 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8860ESA33 requirements.
6.How does Aetrix verify that MAX8860ESA33 is sourced from the original manufacturer or authorized distributors?
All MAX8860ESA33 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 meets industry standards.
7.What is the process for return or replacement of MAX8860ESA33?
All MAX8860ESA33 units undergo pre-shipment inspection (PSI). If there is an issue with MAX8860ESA33, 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 part is unused and in its original packaging.
Return procedure for MAX8860ESA33:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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