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Analog Devices Inc./Maxim Integrated MAX8510EXK18+T
- Part No.:
- MAX8510EXK18+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX8510EXK18+T.pdf
- Description:
- IC REG LINEAR 1.8V 120MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:13,684
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Product details
Overview
The MAX8510EXK18+T from Maxim Integrated is a 1.8V fixed-output, ultra-low-noise, low-dropout linear regulator featuring a P-channel MOSFET pass element, 120mV dropout at 120mA, 11μVRMS output noise (100Hz–100kHz), and 78dB PSRR at 1kHz - designed for powering noise-sensitive analog circuitry in portable battery-powered systems.
For engineers reviewing the MAX8510EXK18+T datasheet, MAX8510EXK18+T pinout, MAX8510EXK18+T application, or MAX8510EXK18+T equivalent, key selection criteria include guaranteed 120mA output with sub-1μA shutdown current, stability with only 1μF ceramic output capacitance, and SC70-5 package compatibility with space-constrained RF and audio signal chains.
Technical Context
The MAX8510EXK18+T uses an internal 1.225V bandgap reference and error amplifier to regulate its factory-set 1.8V output via feedback through an integrated resistor divider. Its P-channel MOSFET pass transistor delivers low ground current (40μA typical) and avoids base-drive losses inherent in PNP-based LDOs.
Dropout voltage scales linearly with load current and output voltage due to RDS(ON) of the pass device; noise performance is enhanced by a dedicated BP pin accepting a 10nF capacitor to reduce RMS output noise to 11μV - a feature exclusive to the MAX8510 variant family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±1% at +25°C; ±3% over full -40°C to +85°C range - ensures stable biasing for 1.8V logic and RF ICs without external resistors. |
| Max Output Current | 120mA continuous - sufficient to power multiple low-power analog blocks (e.g., ADCs, VCOs, op-amps) from a single rail. |
| Dropout Voltage | 120mV at 120mA load (for VOUT ≥ 3V); 135mV at 120mA for 2.5V ≤ VOUT < 3V - enables operation down to ~1.93V input for 1.8V output, extending battery life in single-cell Li-ion systems. |
| Output Noise | 11μVRMS (100Hz–100kHz) - critical for preserving SNR in precision analog front-ends and low-phase-noise clock supplies. |
| PSRR | 78dB at 1kHz, 54dB at 100kHz - suppresses switching noise from upstream DC/DC converters feeding sensitive analog subsystems. |
| Ground Current | 40μA typical at light load; 220μA in dropout - minimizes quiescent drain on battery during standby or low-power modes. |
| Shutdown Current | <1μA - enables true system-level power gating without leakage penalties in always-on sensor nodes. |
Pinout & Package
MAX8510EXK18+T is housed in a RoHS-compliant, lead(Pb)-free 5-pin SC70 package (2.0mm × 1.25mm × 0.9mm), with exposed pad omitted - optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Unregulated input supply | Accepts 2V to 6V input; must be bypassed with ≥1μF ceramic capacitor to GND for stability and transient immunity. |
| 2 - GND | Ground reference and thermal path | Primary return for all internal circuits; connects to PCB ground plane to manage thermal dissipation (θJA = 324°C/W). |
| 3 - SHDN | Active-low shutdown control | Pull ≤0.4V to disable regulator; draws <1μA in shutdown; connect to IN for always-on operation. |
| 4 - BP | Noise bypass terminal | Connect 10nF capacitor to OUT to enable ultra-low-noise mode (11μVRMS); shorted to OUT internally during shutdown. |
| 5 - OUT | Regulated 1.8V output | Delivers up to 120mA; requires ≥1μF ceramic capacitor to GND; ESR < 1Ω ensures stability across full load and temperature range. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11μVRMS (100Hz–100kHz) achieved via dedicated BP pin and internal noise-bypass architecture - preserves signal integrity in RF receivers and audio codecs. |
| High PSRR at audio frequencies | 78dB at 1kHz - effectively attenuates ripple from buck converter switching frequencies and their harmonics before reaching analog loads. |
| Stable with minimal capacitance | Guaranteed stability using only 1μF ceramic output capacitor - eliminates need for large tantalum or electrolytic caps, reducing board area and cost. |
| P-channel MOSFET pass element | 1Ω typical RDS(ON) enables low dropout and eliminates base-drive current - cuts ground current to 40μA vs. >100μA in comparable PNP LDOs. |
| Integrated protection | Thermal shutdown (160°C trip, 10°C hysteresis) and current limiting (130–300mA range) - prevents damage during overload or ambient overheating without external components. |
Applications
| RF Front-End Power | Portable Audio Supply |
|---|---|
|
Use Scenario: Powering low-noise amplifiers (LNAs), mixers, and VCOs in Bluetooth/WLAN transceivers where supply noise directly modulates RF carrier phase. IC Role / Device Role / Timing Role: Primary 1.8V analog supply rail delivering clean, regulated voltage with ultra-low RMS noise and high mid-band PSRR. Use Value: Enables >45dBc adjacent channel rejection in 2.4GHz radios by suppressing supply-induced phase noise - verified per MAX8510's 11μVRMS spec. |
Use Scenario: Supplying DACs, headphone amplifiers, and MEMS microphones in wireless earbuds requiring low THD+N and no audible switching artifacts. IC Role / Device Role / Timing Role: Low-noise post-regulator after a switching DC/DC, filtering residual ripple and enabling high-fidelity audio playback. Use Value: Achieves <−105dB THD+N in Class-AB headphone amps by eliminating 10–100kHz supply noise that would otherwise alias into audio band. |
| Medical Sensor Signal Chain | Industrial IoT Edge Node |
|
Use Scenario: Biasing precision instrumentation amplifiers and sigma-delta ADCs in wearable ECG/PPG modules where microvolt-level signal integrity is critical. IC Role / Device Role / Timing Role: Ultra-stable 1.8V reference rail for analog signal conditioning stages, decoupled from noisy digital domains. Use Value: Maintains ADC ENOB >18 bits by limiting supply-induced noise contribution to <0.5 LSB - enabled by 11μVRMS and 78dB PSRR. |
Use Scenario: Powering ultra-low-power microcontrollers (e.g., ARM Cortex-M0+) and LoRaWAN transceivers in battery-operated environmental sensors deployed for 10+ years. IC Role / Device Role / Timing Role: Always-on LDO supplying real-time clock, sensor interface, and wake-up logic with sub-1μA shutdown current. Use Value: Extends 2000mAh coin-cell lifetime to >12 years in sleep-dominated duty cycles - validated by 40μA IQ and <1μA ISHDN. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B182MR-G | 1.8V fixed, 100mA max, 25μVRMS noise, no BP pin; SC70-5 package | Lacks ultra-low-noise BP architecture - unsuitable for RF/analog signal chains requiring <15μVRMS | Select when cost sensitivity outweighs noise performance; verify stability with 1μF X7R cap per datasheet. |
| Analog Devices ADP125ARHZ-1.8-R7 | 1.8V fixed, 500mA max, 40μVRMS noise, 250mV dropout @500mA; 6-lead SOT-23 | Higher noise and larger footprint; better for higher-current digital loads than precision analog rails | Choose only if >120mA output or SOT-23 layout reuse is mandatory; avoid for noise-critical analog sections. |
Compared with the XC6210B182MR-G and ADP125ARHZ-1.8-R7, the MAX8510EXK18+T uniquely delivers 11μVRMS noise in the SC70-5 footprint - making it the sole option among these three for powering RF synthesizers or high-resolution ADCs without additional filtering.
Availability
MAX8510EXK18+T is available at Aetrix Electronics and suitable for cellular handsets, portable medical sensors, Bluetooth audio accessories, and industrial edge nodes requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MAX8510EXK18+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 ICs for automotive, industrial, communications, and consumer markets - emphasizing integration, reliability, and power efficiency.
The MAX8510EXK18+T belongs to Maxim's ultra-low-noise LDO family, engineered specifically for powering noise-sensitive analog circuitry in battery-constrained portable electronics where PSRR, dropout, and quiescent current are co-optimized.
FAQ
What is the maximum input voltage rating for the MAX8510EXK18+T?
The MAX8510EXK18+T has an absolute maximum input voltage of +7V referenced to GND. However, its specified operating input range is 2V to 6V. Exceeding 6V may cause excessive power dissipation or violate thermal limits - especially in the SC70 package with θJA = 324°C/W. For reliable operation, keep VIN ≤ 6V and ensure (VIN − 1.8V) × ILOAD stays within 0.247W derated above +70°C.
Does the MAX8510EXK18+T require an external bypass capacitor on the BP pin?
Yes - the MAX8510EXK18+T requires a 10nF ceramic capacitor between BP and OUT to achieve its specified 11μVRMS output noise. Without this capacitor, noise rises to 230μVRMS (per MAX8511/MAX8512 data). The BP pin is internally shorted to OUT during shutdown, so the capacitor remains safe and functional across all states.
Can the MAX8510EXK18+T be used with a 1μF X5R ceramic output capacitor?
Yes - the MAX8510EXK18+T is explicitly characterized and guaranteed stable with a 1μF X5R or X7R ceramic capacitor on the output. These dielectrics maintain stable capacitance and low ESR across -40°C to +85°C. Avoid Z5U/Y5V types below -10°C, where capacitance loss may destabilize regulation.
What is the shutdown exit delay time for the MAX8510EXK18+T?
The MAX8510EXK18+T exhibits a typical shutdown exit delay of 300μs when transitioning from disabled to enabled state under RLOAD = 50Ω (per Electrical Characteristics table). This delay includes internal reference startup, error amplifier settling, and pass-transistor gate charging - critical for fast-wake applications like sensor polling or burst-mode RF transmission.
How does the MAX8510EXK18+T handle thermal overload conditions?
When junction temperature exceeds +160°C, the MAX8510EXK18+T activates thermal shutdown, turning off the pass transistor until temperature drops by 10°C (hysteresis). During sustained overload, this causes pulsed output - not latch-off. The device resumes normal regulation once cooled, protecting against permanent damage while maintaining system visibility of fault condition.
MAX8510EXK18+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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 120mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- PSRR:
- 78dB ~ 54dB (1kHz ~ 100kHz)
- 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
MAX8510EXK18+T FAQ
1.How can I place an order for MAX8510EXK18+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8510EXK18+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 MAX8510EXK18+T reliable?
The price and inventory of MAX8510EXK18+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8510EXK18+T is usually 5 days.
3.What payment methods are accepted for MAX8510EXK18+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8510EXK18+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8510EXK18+T?
MAX8510EXK18+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8510EXK18+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 MAX8510EXK18+T?
For technical support, including MAX8510EXK18+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8510EXK18+T requirements.
6.How does Aetrix verify that MAX8510EXK18+T is sourced from the original manufacturer or authorized distributors?
All MAX8510EXK18+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 MAX8510EXK18+T meets industry standards.
7.What is the process for return or replacement of MAX8510EXK18+T?
All MAX8510EXK18+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8510EXK18+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 MAX8510EXK18+T part is unused and in its original packaging.
Return procedure for MAX8510EXK18+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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