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Analog Devices Inc./Maxim Integrated MAX8510MXK33/PR3+
- Part No.:
- MAX8510MXK33/PR3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX8510MXK33/PR3+.pdf
- Description:
- IC REG LINEAR 3.3V 120MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,389
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Product details
Overview
MAX8510MXK33/PR3+ from Maxim Integrated is a preset 3.3V, 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 - designed for powering noise-sensitive analog circuitry in portable RF and audio subsystems.
For engineers reviewing the MAX8510MXK33/PR3+ datasheet, MAX8510MXK33/PR3+ pinout, MAX8510MXK33/PR3+ application, or MAX8510MXK33/PR3+ equivalent, key selection criteria include guaranteed 3.3V ±3% accuracy over load/temperature, 40µA ground current at light load, SC70-5 package compatibility, and BP-capacitor–enabled ultra-low-noise operation.
Technical Context
The MAX8510MXK33/PR3+ employs a P-channel MOSFET series pass transistor with 1Ω typical RDS(ON), enabling low dropout and eliminating base-drive current loss. Its bandgap reference (1.225V) feeds an error amplifier that controls the pass gate via internal feedback, ensuring stable regulation without external resistors.
It integrates dedicated noise-reduction architecture: the BP pin accepts a 10nF capacitor to OUT, shunting high-frequency noise from the reference path - a feature exclusive to MAX8510 variants and confirmed for this 3.3V fixed-output version. Shutdown logic disables reference, error amp, and driver, reducing supply current to <1µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±3% over -40°C to +85°C, 100µA–80mA load - ensures stable core voltage for 3.3V microcontrollers and RF ICs. |
| Dropout Voltage | 120mV at 120mA load - enables operation down to VIN = 3.42V, extending usable battery life in single-cell Li-ion or dual-cell alkaline systems. |
| 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 no load, 220µA max in dropout - minimizes quiescent drain in always-on sensor nodes and standby circuits. |
| Stability | Guaranteed stable with 1µF ceramic output capacitor (X7R/X5R) - eliminates need for costly tantalum or large electrolytics. |
| Shutdown Current | <1µA - supports deep-sleep modes in battery-powered IoT endpoints without compromising wake-up latency. |
Pinout & Package
MAX8510MXK33/PR3+ is supplied in a RoHS-compliant 5-pin SC70 package (2.0mm × 1.25mm × 0.95mm), with exposed die pad not present (SC70 variant). Pin 1 is IN; Pin 2 is GND; Pin 3 is SHDN; Pin 4 is BP; Pin 5 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Unregulated input supply | Accepts 2V–6V input; must be bypassed with ≥1µF ceramic capacitor close to pin for EMI suppression and transient response. |
| GND (Pin 2) | Ground reference and thermal path | Serves as primary return for all internal currents; requires direct connection to PCB ground plane for thermal management and noise control. |
| SHDN (Pin 3) | Active-low enable control | Pull ≤0.4V to disable regulator; open or tie to IN for always-on operation; exit delay is 300µs (typ) with 10nF BP cap. |
| BP (Pin 4) | Noise bypass terminal | Connects to OUT via 10nF capacitor to reduce reference noise - unique to MAX8510; unused in MAX8511/MAX8512 variants. |
| OUT (Pin 5) | Regulated 3.3V output | Delivers up to 120mA; requires ≥1µF ceramic capacitor to GND; output impedance remains low across frequency for clean load transients. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11µVRMS (100Hz–100kHz) enabled by dedicated BP pin and internal noise-bypass architecture - critical for precision analog signal chains. |
| High PSRR at audio frequencies | 78dB rejection at 1kHz - effectively isolates sensitive analog stages from digital switching noise on shared power rails. |
| Low-ground-current LDO architecture | 40µA quiescent current at zero load - extends battery runtime in maintenance-free wireless sensors and wearables. |
| Robust protection suite | Integrated thermal shutdown (160°C trip, 10°C hysteresis) and current limiting (130–300mA range) - prevents damage during fault conditions without external components. |
| Minimal external component count | Requires only input/output capacitors and optional BP capacitor - reduces BOM cost and board area in space-constrained designs. |
Applications
| Cellular Front-End Power | Portable Audio Codec Supply |
|---|---|
Use Scenario: Powering RF transceiver LNA, mixer, and VCO blocks in GSM/UMTS/WCDMA handsets where supply noise directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Primary low-noise bias rail generator; provides clean 3.3V for analog RF signal path components. Use Value: 11µVRMS noise and 78dB PSRR prevent degradation of receiver sensitivity and transmit spectral purity. | Use Scenario: Supplying high-resolution stereo audio codecs (e.g., 24-bit DACs/ADCs) in Bluetooth headsets and portable media players. IC Role / Device Role / Timing Role: Dedicated low-noise analog supply rail decoupled from noisy digital core voltage. Use Value: Enables >110dB SNR performance by eliminating power-supply–induced harmonic distortion in audio signal paths. |
| Medical Sensor Signal Conditioning | Industrial Wireless Node MCU Core |
Use Scenario: Biasing low-level biopotential amplifiers (ECG, EEG) and precision instrumentation amplifiers in wearable diagnostic devices. IC Role / Device Role / Timing Role: Ultra-stable, low-drift analog reference voltage source for signal chain front-end. Use Value: ±3% output accuracy over temperature and 40µA ground current ensure long-term calibration stability and multi-week battery life. | Use Scenario: Powering ARM Cortex-M0+/M3 microcontrollers and sub-GHz RF transceivers (e.g., Si4463) in battery-operated industrial telemetry nodes. IC Role / Device Role / Timing Role: Main system voltage regulator enabling low-power active/sleep cycling. Use Value: 120mV dropout allows operation down to 3.42V input, maximizing energy extraction from 3.6V Li-SOCl₂ cells across full discharge curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2033PDBVR | Lower 6.5µVRMS noise but only 48dB PSRR at 100kHz; 250mA output; 0.5V dropout at 200mA. | Better for ultra-low-noise analog but weaker high-frequency ripple rejection; larger 5-pin SOT-23 footprint. | Select when lowest possible noise dominates over PSRR and board area constraints permit SOT-23. |
| MCP1700T-3302E/MB | Higher 25µVRMS noise; 100mA output; 178mV dropout at 250mA; no BP pin; SC70-5 compatible. | Cost-optimized alternative lacking BP-based noise reduction; suitable for non-critical digital I/O rails. | Select when budget is primary constraint and 11µVRMS noise is not required for signal integrity. |
Compared with TPS7A2033PDBVR and MCP1700T-3302E/MB, MAX8510MXK33/PR3+ uniquely balances ultra-low noise (11µVRMS) with high PSRR (78dB @ 1kHz) in the compact SC70-5 package - making it optimal for RF/analog co-location where both noise and ripple rejection are simultaneously critical.
Availability
MAX8510MXK33/PR3+ is available at Aetrix Electronics and suitable for cellular front-end power, portable audio codec supply, medical sensor signal conditioning, and industrial wireless node MCU core applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MAX8510MXK33/PR3+ 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 markets.
The MAX8510 family was engineered specifically for ultra-low-noise, high-PSRR power delivery in space-constrained portable electronics - targeting RF front-ends, precision data converters, and battery-powered instrumentation where traditional LDOs introduce unacceptable signal corruption.
FAQ
What is the output voltage tolerance of the MAX8510MXK33/PR3+ across temperature and load?
The MAX8510MXK33/PR3+ guarantees ±3% output voltage accuracy over the full -40°C to +85°C operating temperature range and for output currents from 100µA to 80mA. At 25°C and 1mA load, typical deviation is ±1%. This tight tolerance ensures reliable operation of 3.3V logic interfaces and analog components without external trimming.
Does the MAX8510MXK33/PR3+ require an external bypass capacitor on the BP pin?
Yes - the MAX8510MXK33/PR3+ requires a 10nF capacitor between BP (Pin 4) and OUT (Pin 5) to achieve its specified 11µVRMS output noise. Omitting this capacitor degrades noise performance to 230µVRMS. The BP pin is internally shorted to OUT during shutdown, so the capacitor remains safe and functional across all states.
Can the MAX8510MXK33/PR3+ be used with ceramic output capacitors smaller than 1µF?
No - the MAX8510MXK33/PR3+ is guaranteed stable only with ≥1µF ceramic output capacitance (X7R or X5R dielectric). Using smaller values risks oscillation under load transients. The device's internal compensation is optimized for this minimum value; reducing COUT below 1µF invalidates stability guarantees per the datasheet.
What is the maximum continuous output current rating for the MAX8510MXK33/PR3+?
The MAX8510MXK33/PR3+ is rated for guaranteed 120mA continuous output current under all operating conditions within its absolute maximum ratings. Current limit is set between 130mA (min) and 300mA (max); sustained operation above 120mA may trigger thermal shutdown depending on ambient temperature and PCB layout.
How does the shutdown function behave on the MAX8510MXK33/PR3+?
When SHDN (Pin 3) is pulled low (<0.4V), the MAX8510MXK33/PR3+ disables its voltage reference, error amplifier, and pass transistor driver, reducing supply current to <1µA. Output enters high-impedance state. Exit delay is 300µs (typ) with 10nF BP capacitor; the device resumes regulation once SHDN rises above 1.5V.
MAX8510MXK33/PR3+ 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:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.12V @ 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:
- -55°C ~ 110°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX8510MXK33/PR3+ FAQ
1.How can I place an order for MAX8510MXK33/PR3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8510MXK33/PR3+ 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 MAX8510MXK33/PR3+ reliable?
The price and inventory of MAX8510MXK33/PR3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8510MXK33/PR3+ is usually 5 days.
3.What payment methods are accepted for MAX8510MXK33/PR3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8510MXK33/PR3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8510MXK33/PR3+?
MAX8510MXK33/PR3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8510MXK33/PR3+ 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 MAX8510MXK33/PR3+?
For technical support, including MAX8510MXK33/PR3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8510MXK33/PR3+ requirements.
6.How does Aetrix verify that MAX8510MXK33/PR3+ is sourced from the original manufacturer or authorized distributors?
All MAX8510MXK33/PR3+ 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 MAX8510MXK33/PR3+ meets industry standards.
7.What is the process for return or replacement of MAX8510MXK33/PR3+?
All MAX8510MXK33/PR3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX8510MXK33/PR3+, 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 MAX8510MXK33/PR3+ part is unused and in its original packaging.
Return procedure for MAX8510MXK33/PR3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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