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Analog Devices Inc./Maxim Integrated MAX8510EXK25+T
- Part No.:
- MAX8510EXK25+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX8510EXK25+T.pdf
- Description:
- IC REG LINEAR 2.5V 120MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,247
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Product details
Overview
The MAX8510EXK25+T from Maxim Integrated is a 2.5V fixed-output, ultra-low-noise, low-dropout linear regulator featuring a P-channel MOSFET pass device, 120mV dropout at 120mA, 11μVRMS output noise (100Hz–100kHz), 78dB PSRR at 1kHz, and 40μA ground current - designed for powering noise-sensitive analog circuitry in portable RF and audio subsystems.
For engineers reviewing the MAX8510EXK25+T datasheet, MAX8510EXK25+T pinout, MAX8510EXK25+T application, or MAX8510EXK25+T equivalent, key selection criteria include guaranteed 120mA output with <1μA shutdown current, SC70-5 package compatibility, stability with 1μF ceramic output capacitance, and precise 2.5V ±1% output accuracy across load and temperature.
Technical Context
The MAX8510EXK25+T implements a bandgap-referenced error amplifier driving a 1Ω (typ) P-channel MOSFET pass transistor, enabling low dropout and minimal quiescent current without base-drive losses. Its BP pin supports an external 10nF bypass capacitor to suppress noise via a dedicated low-impedance path to the error amplifier's reference node.
Shutdown is controlled by a CMOS-compatible SHDN input (logic low disables regulation, dropping supply current to <1μA), while internal thermal shutdown (160°C trip, 10°C hysteresis) and current limiting (130–300mA range) ensure robust fault protection. The device operates from 2V to 6V input and maintains stability with 1μF ceramic capacitors on both input and output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% at +25°C; ±3% over full -40°C to +85°C range and 100µA–80mA load |
| Max Output Current | Guaranteed 120mA continuous output; current limit activates at 130mA (min) to prevent damage |
| Dropout Voltage | 120mV at 120mA load (for VOUT ≥ 3V); 135mV at 120mA for 2.5V ≤ VOUT < 3V - enables operation near battery end-of-life |
| Output Noise | 11μVRMS (100Hz–100kHz bandwidth), achieved via BP pin bypass and optimized internal noise filtering |
| PSRR | 78dB at 1kHz, 54dB at 100kHz - suppresses switching noise from upstream DC/DC converters |
| Ground Current | 40μA typical at light load; rises to 220μA in dropout - extends battery life in always-on systems |
| Shutdown Current | <1μA at TA = +25°C; <0.05μA at TA = +85°C - critical for long-term storage or sleep-mode power budgets |
Pinout & Package
MAX8510EXK25+T is housed in a RoHS-compliant, lead(Pb)-free 5-pin SC70 package (2.0mm × 1.25mm × 0.95mm height), with exposed die pad not present - thermal performance relies on PCB copper area connected to GND pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Unregulated input supply | Accepts 2V to 6V; must be decoupled with ≥1μF ceramic capacitor close to pin |
| 2 - GND | Ground reference and thermal path | Primary return for all currents; connect to large PCB ground plane for thermal management |
| 3 - SHDN | Active-low shutdown control | Pull ≤0.4V to disable regulator; high-impedance when floating or pulled to IN for normal operation |
| 4 - BP | Noise bypass terminal | Connect 10nF capacitor to OUT to reduce output voltage noise to 11μVRMS; shorted to OUT in shutdown |
| 5 - OUT | Regulated 2.5V output | Delivers up to 120mA; requires ≥1μF ceramic capacitor to GND for stability across all loads |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11μVRMS (100Hz–100kHz) enables clean power for ADCs, VCOs, and RF synthesizers without additional filtering |
| High PSRR at RF frequencies | 54dB at 100kHz suppresses noise from switch-mode power supplies feeding mixed-signal SoCs |
| Stable with minimal capacitance | Guaranteed stability using only 1μF ceramic output capacitor - reduces BOM count and board space |
| P-channel pass architecture | Eliminates base-drive current loss; maintains 40μA ground current even at full 120mA load |
| Robust protection suite | Integrated thermal shutdown (160°C), current limiting (130–300mA), and infinite short-circuit tolerance |
Applications
| Cellular Front-End Power | Portable Audio DAC Supply |
|---|---|
|
Use Scenario: Powering RF transceiver LNA and mixer stages in GSM/UMTS handsets where supply ripple directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Low-noise post-regulator delivering clean 2.5V bias to analog RF blocks downstream of a noisy buck converter. Use Value: 11μVRMS noise and 78dB PSRR at 1kHz prevent AM-to-PM conversion and preserve receiver sensitivity below –105dBm. |
Use Scenario: Supplying high-resolution stereo DACs (e.g., 24-bit/192kHz) in Bluetooth headphones where power rail noise causes audible hiss or distortion. IC Role / Device Role / Timing Role: Ultra-low-noise voltage source for DAC analog core and reference buffer, isolated from digital switching noise. Use Value: 11μVRMS output noise translates to >110dB SNR headroom - exceeding THD+N requirements for premium audio playback. |
| Baseband Processor Core Rail | Wireless LAN PHY Analog Supply |
|
Use Scenario: Providing stable 2.5V supply to ARM Cortex-M4-based modem processors during burst data transmission with dynamic current draw up to 100mA. IC Role / Device Role / Timing Role: Low-dropout regulator maintaining regulation during Li-ion battery voltage sag from 3.4V to 2.7V under peak load. Use Value: 120mV dropout at 120mA ensures uninterrupted operation down to 2.62V input - extending usable battery capacity by ~8%. |
Use Scenario: Powering WLAN 802.11ac RF front-end ICs (e.g., PA driver, T/R switch bias) in compact IoT access points with strict thermal limits. IC Role / Device Role / Timing Role: Compact, thermally efficient 2.5V source replacing larger LDOs to meet 2mm × 1.25mm board area constraints. Use Value: SC70-5 footprint and 40μA quiescent current enable always-on Wi-Fi presence detection without compromising standby battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B25MR-G | 2.5V fixed, 150mA output, 120mV dropout, but 25μVRMS noise and no BP pin - lacks ultra-low-noise capability | Suitable for digital I/O rails where noise is non-critical; not recommended for RF/analog signal chains | Select MAX8510EXK25+T when output noise ≤12μVRMS is mandatory; choose XC6219B25MR-G only if cost and footprint are primary drivers |
| Analog Devices ADP160ACBZ-2.5-R7 | 2.5V fixed, 150mA, 195mV dropout at 150mA, 22μVRMS noise, 1.8μA quiescent current - higher noise, higher IQ, higher dropout | Better suited for general-purpose microcontroller I/O or logic rails; insufficient PSRR/noise performance for RF sections | MAX8510EXK25+T delivers 67% lower output noise and 44× lower ground current - essential for battery-powered RF modules |
Compared with XC6219B25MR-G and ADP160ACBZ-2.5-R7, the MAX8510EXK25+T uniquely combines sub-12μVRMS noise, <45μA ground current, and SC70-5 size - making it the only viable choice for space-constrained, noise-sensitive RF and precision analog subsystems.
Availability
MAX8510EXK25+T is available at Aetrix Electronics and suitable for cellular front-end power, portable audio DAC supply, baseband processor core rail, and wireless LAN PHY analog supply requiring stable component supply with guaranteed long-term manufacturability and RoHS compliance.
Supply support for MAX8510EXK25+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 MAX8510 series belongs to Maxim's ultra-low-noise LDO product line, engineered specifically for powering noise-critical RF, audio, and precision analog circuits in battery-operated portable devices.
FAQ
What is the exact output voltage tolerance of the MAX8510EXK25+T over temperature and load?
The MAX8510EXK25+T delivers 2.5V output with ±1% accuracy at +25°C and 1mA load. Over the full –40°C to +85°C operating range and 100µA to 80mA load, output voltage deviation is guaranteed within ±3%. This tight tolerance ensures reliable operation of 2.5V-tolerant ADC references and analog comparators without external trimming.
Can the MAX8510EXK25+T operate stably with less than 1μF output capacitance?
No - the MAX8510EXK25+T is specified and tested for stability only with ≥1μF ceramic output capacitance. Using smaller values risks oscillation or degraded transient response. The datasheet explicitly states "1μF (typ) of output capacitance for stability with any load", and typical operating circuits show 1μF as minimum. For space-constrained designs, X5R or X7R 1μF 0402 ceramics are recommended.
Is a bypass capacitor required on the BP pin of the MAX8510EXK25+T?
Yes - a 10nF capacitor between BP and OUT is mandatory to achieve the specified 11μVRMS output noise. Without it, noise rises to 230μVRMS (per MAX8511/MAX8512 specs, which share same core). The BP pin provides a dedicated low-impedance path to shunt noise from the bandgap reference; omitting the capacitor degrades PSRR and increases RMS noise by >20×.
What is the maximum allowable input voltage for the MAX8510EXK25+T?
The absolute maximum input voltage for the MAX8510EXK25+T is +7V, but the recommended operating range is 2V to 6V. Exceeding 6V risks violating the IN-to-GND rating of –0.3V to +7V and may accelerate parametric drift or reduce lifetime reliability. For 3.7V Li-ion battery applications, the 6V upper limit provides ample margin against charging spikes.
Does the MAX8510EXK25+T support reverse current blocking?
No - the MAX8510EXK25+T does not integrate reverse current blocking. Its P-channel MOSFET pass transistor allows reverse current flow from OUT to IN when VOUT > VIN, such as during hot-swap or backup-battery scenarios. External reverse-blocking diodes or ideal diode controllers are required if backfeed prevention is needed in the system design.
MAX8510EXK25+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:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.135V @ 120mA (Typ)
- Current - Output:
- 120mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- PSRR:
- 78dB ~ 54dB (1kHz ~ 100kHz)
- Control Features:
- Shutdown
- 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
MAX8510EXK25+T FAQ
1.How can I place an order for MAX8510EXK25+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8510EXK25+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 MAX8510EXK25+T reliable?
The price and inventory of MAX8510EXK25+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8510EXK25+T is usually 5 days.
3.What payment methods are accepted for MAX8510EXK25+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8510EXK25+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8510EXK25+T?
MAX8510EXK25+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8510EXK25+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 MAX8510EXK25+T?
For technical support, including MAX8510EXK25+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8510EXK25+T requirements.
6.How does Aetrix verify that MAX8510EXK25+T is sourced from the original manufacturer or authorized distributors?
All MAX8510EXK25+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 MAX8510EXK25+T meets industry standards.
7.What is the process for return or replacement of MAX8510EXK25+T?
All MAX8510EXK25+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8510EXK25+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 MAX8510EXK25+T part is unused and in its original packaging.
Return procedure for MAX8510EXK25+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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