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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 LDO
- Quantity:
- Payment:
- Shipping:
Inventory:27,500
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Product details
Overview
MAX8510EXK18-T from Maxim Integrated is a 1.8V fixed-output, ultra-low-noise, low-dropout linear regulator delivering up to 120mA output current with 120mV dropout at full load, 11µVRMS output noise (100Hz–100kHz), and 78dB PSRR at 1kHz. It employs a P-channel MOSFET pass transistor, achieves 40µA ground current, and operates from 2V to 6V input - ideal for powering RF front-ends and precision analog circuitry in portable radios.
For engineers reviewing the MAX8510EXK18-T datasheet, MAX8510EXK18-T pinout, MAX8510EXK18-T application, or MAX8510EXK18-T equivalent, key selection criteria include its SC70-5 package footprint, BP-capacitor–enabled noise suppression, guaranteed ±3% output accuracy over temperature and load, and shutdown current <1µA - critical for battery-life optimization in Bluetooth accessories and digital cameras.
Technical Context
The MAX8510EXK18-T uses an integrated 1.225V bandgap reference and error amplifier to regulate output against internal feedback, with a P-channel MOSFET pass device (typ. RDS(ON) = 1Ω) enabling low dropout and minimal quiescent current. Its BP pin connects to a 10nF capacitor to shunt high-frequency noise from the reference path, directly enabling the 11µVRMS noise performance.
Shutdown control is active-low on SHDN, disabling the reference, error amp, and gate drive to reduce supply current below 1µA; the device enters high-impedance output state. Thermal protection activates at +160°C junction temperature with 10°C hysteresis, and current limiting is set between 130mA (min) and 300mA (max) to sustain indefinite short-circuit operation without damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±3% over -40°C to +85°C and 100µA–80mA load - ensures stable bias for 1.8V logic and RF ICs. |
| Dropout Voltage | 120mV at 120mA load - enables operation down to VIN = 1.92V, extending usable battery voltage range. |
| Output Noise | 11µVRMS (100Hz–100kHz) with 10nF BP capacitor - meets stringent noise requirements for ADC references and VCO power rails. |
| PSRR | 78dB at 1kHz, 54dB at 100kHz - suppresses switching noise from DC/DC converters feeding the LDO input. |
| Ground Current | 40µA typical at light load; 220µA in dropout - minimizes standby power loss in always-on subsystems. |
| Input Voltage Range | 2V to 6V - compatible with single-cell Li-ion (2.7–4.2V), Li-poly, and dual-cell alkaline inputs. |
| Shutdown Current | <1µA - preserves battery charge during system sleep modes in portable equipment. |
Pinout & Package
MAX8510EXK18-T is housed in a RoHS-compliant, lead-free 5-pin SC70 package (2.0mm × 1.25mm × 0.95mm), with exposed pad omitted - optimized for space-constrained PCB layouts in handheld devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Unregulated input supply | Accepts 2V–6V input; requires 1µF ceramic decoupling close to pin for stability and transient response. |
| 2 GND | Ground reference and thermal path | Primary return for all internal circuits; must connect to solid ground plane for thermal management and noise control. |
| 3 SHDN | Active-low shutdown control | Pull ≤0.4V to disable regulator; internal pull-up not provided - external pull-up to IN required for default-on operation. |
| 4 BP | Noise bypass terminal | Connect 10nF capacitor to OUT to reduce reference noise; shorted to OUT during shutdown - enables 11µVRMS performance. |
| 5 OUT | Regulated 1.8V output | Delivers up to 120mA; requires 1µF ceramic output capacitor (X7R/X5R) for guaranteed stability across temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11µVRMS (100Hz–100kHz) enabled by dedicated BP pin and internal noise-bypass architecture - critical for sensitive RF/analog signal chains. |
| High PSRR at audio frequencies | 78dB rejection at 1kHz - effectively isolates downstream circuitry from ripple generated by buck converters operating near 1kHz switching frequency. |
| Stable with minimal capacitance | Guaranteed stability using only 1µF ceramic output capacitor - eliminates need for larger, higher-ESR tantalum or electrolytic caps in compact designs. |
| P-channel MOSFET pass element | 1Ω typical RDS(ON) enables low dropout and eliminates base-drive current - reduces ground current to 40µA vs. >100µA in PNP-based LDOs. |
| Integrated protection | Thermal shutdown (160°C, 10°C hysteresis) and current limit (130–300mA) allow safe operation under fault conditions without external components. |
Applications
| Bluetooth Audio Transceiver Power | Digital Camera Image Sensor Bias |
|---|---|
Use Scenario: Powers the RF transceiver IC and baseband processor in Bluetooth headsets and wireless speakers. IC Role / Device Role / Timing Role: Low-noise 1.8V supply for RF synthesizer VCO, PLL, and ADC reference - prevents phase noise degradation and quantization errors. Use Value: 11µVRMS noise and 78dB PSRR ensure clean local oscillator signals and accurate 12-bit ADC sampling, directly improving audio SNR and connection range. | Use Scenario: Supplies bias voltage to CMOS image sensor analog front-end and column ADC drivers. IC Role / Device Role / Timing Role: Stable 1.8V rail for pixel readout circuitry and correlated double sampling (CDS) stages - maintains consistent gain and offset calibration. Use Value: ±3% output accuracy over temperature and 120mV dropout extend battery runtime while preserving image uniformity and dynamic range in variable-light conditions. |
| Portable Medical Pulse Oximeter | Industrial Handheld Scanner |
Use Scenario: Provides regulated power to photodiode amplifier, LED driver, and analog signal chain in battery-powered oximeters. IC Role / Device Role / Timing Role: Ultra-low-noise 1.8V source for transimpedance amplifier and precision op-amps - minimizes baseline drift and shot noise in weak optical signal detection. Use Value: 40µA ground current and sub-1µA shutdown current enable multi-day operation on coin-cell batteries, meeting IEC 60601-1 leakage and runtime requirements. | Use Scenario: Powers barcode laser driver, decoder ASIC, and touch interface controller in ruggedized industrial scanners. IC Role / Device Role / Timing Role: Primary 1.8V supply for low-voltage logic and mixed-signal SoC - sustains reliable decode timing and ESD-robust communication during intermittent battery operation. Use Value: 120mA output capability and thermal protection ensure uninterrupted scanning under high ambient temperatures (up to +85°C), preventing lockup during extended field use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS79518DBVR | 20µVRMS noise (10Hz–100kHz), 60dB PSRR at 100kHz, 150mV dropout at 150mA, SOT-23-5 package | Higher noise limits suitability for RF/VCO rails; better suited for general-purpose 1.8V logic supply where PSRR >50dB suffices | Select when lower cost and wider availability outweigh ultra-low-noise requirement; verify 20µV noise acceptable for target signal chain. |
| MCP1700T-1802E/MB | 115µVRMS noise, 45dB PSRR at 1kHz, 178mV dropout at 250mA, SOT-23-3 package (no SHDN/BP pins) | Lacks shutdown and noise-bypass features; intended for cost-sensitive, non-critical analog rails like display bias or MCU I/O | Choose only for non-noise-sensitive 1.8V loads where board space and BOM count are primary constraints - not for RF or precision analog. |
Compared with TPS79518DBVR and MCP1700T-1802E/MB, the MAX8510EXK18-T uniquely delivers 11µVRMS noise with BP-capacitor support and 78dB PSRR at 1kHz - making it the sole option among the three qualified for powering VCOs, high-resolution ADCs, and low-phase-noise receivers without additional filtering.
Availability
MAX8510EXK18-T is available at Aetrix Electronics and suitable for Bluetooth portable radios, digital cameras, portable medical sensors, and industrial handheld scanners 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) 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 noise-sensitive RF, imaging, and precision measurement systems where traditional LDOs introduce unacceptable signal degradation.
FAQ
What is the maximum output current specification for the MAX8510EXK18-T?
The MAX8510EXK18-T is guaranteed to deliver 120mA continuous output current across its full operating temperature range (-40°C to +85°C). Electrical characteristics confirm minimum current limit of 130mA, with typical dropout voltage of 120mV measured at this 120mA load - ensuring robust performance in portable equipment with dynamic current demands.
Does the MAX8510EXK18-T require an external bypass capacitor, and if so, what value?
Yes, the MAX8510EXK18-T requires a 10nF capacitor connected between the BP pin and OUT pin to achieve its specified 11µVRMS output noise. This capacitor is essential for noise-bypass functionality - omitting it degrades noise performance to 230µVRMS. The datasheet explicitly specifies 10nF as optimal; values below 1nF or above 100nF are not recommended due to diminishing returns or instability risk.
What package type and dimensions does the MAX8510EXK18-T use?
The MAX8510EXK18-T uses a 5-pin SC70 package (package code X5+1), measuring 2.0mm × 1.25mm × 0.95mm with a 0.65mm pitch. It is RoHS-compliant and lead-free (+ suffix), with no exposed pad - distinguishing it from the TDFN variant (ETA). This compact footprint supports high-density layouts in space-constrained portable electronics.
How does the shutdown function operate on the MAX8510EXK18-T?
The MAX8510EXK18-T features an active-low SHDN pin: pulling it to ≤0.4V disables the internal voltage reference, error amplifier, and pass transistor gate drive, reducing total supply current to <1µA and placing the OUT pin in high-impedance state. For default-on operation, SHDN must be externally pulled up to IN - the device has no internal pull-up resistor.
Is the MAX8510EXK18-T stable with ceramic output capacitors, and what value is required?
Yes, the MAX8510EXK18-T is fully stable with a minimum 1µF ceramic output capacitor (X7R or X5R dielectric), as verified across -40°C to +85°C. Larger values improve PSRR and transient response, but 1µF is sufficient for guaranteed stability - eliminating need for bulkier, higher-ESR alternatives. Z5U/Y5V dielectrics require ≥2.2µF below -10°C.
MAX8510EXK18-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Bulk
- 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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