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Analog Devices Inc./Maxim Integrated MAX8510EXK33-
- Part No.:
- MAX8510EXK33-
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX8510EXK33-.pdf
- Description:
- IC REG LINEAR LDO
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX8510EXK33- 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. It employs a P-channel MOSFET pass element, 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 MAX8510EXK33- datasheet, MAX8510EXK33- pinout, MAX8510EXK33- application, or MAX8510EXK33- equivalent, key selection criteria include its guaranteed 3.3V ±3% output accuracy over temperature and load, SC70-5 package compatibility with space-constrained PCBs, low-noise performance without external feedback, and shutdown current <1µA for battery longevity.
Technical Context
The MAX8510EXK33- uses an integrated 1.225V bandgap reference and error amplifier to regulate output against internal fixed resistive feedback. Its P-channel MOSFET pass transistor (typ. RDS(ON) = 1Ω) eliminates base-drive current, enabling stable 40µA quiescent operation across load and temperature.
Noise reduction is achieved via dedicated BP pin with 10nF capacitor to OUT, enabling 11µVRMS RMS noise by shunting high-frequency reference noise. Shutdown logic disables reference, error amp, and gate drive, forcing OUT into high-impedance state while drawing <0.05µA at +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3V ±3% over -40°C to +85°C and 100µA–80mA load - ensures stable core voltage for 3.3V microcontrollers and transceivers. |
| Dropout Voltage | 120mV at 120mA load - enables operation down to VIN = 3.42V, extending usable battery life in single-cell Li-ion systems. |
| Output Noise | 11µVRMS (100Hz–100kHz) with 10nF BP capacitor - meets stringent noise requirements for ADC references and VCO power supplies. |
| 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 in dropout - minimizes standby power loss in always-on sensor nodes. |
| Shutdown Current | <0.05µA at +85°C - preserves battery charge during extended sleep modes in Bluetooth accessories. |
| Stability | Guaranteed with 1µF ceramic output capacitor (X7R/X5R) - eliminates need for tantalum or large electrolytics, reducing BOM cost and footprint. |
Pinout & Package
MAX8510EXK33- is packaged in a 5-pin SC70-5 (2.0mm × 1.25mm × 0.95mm) with exposed pad option unavailable for this variant. The package supports reflow soldering and provides thermal relief via GND pin connection to PCB ground plane.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Unregulated input supply | Accepts 2V–6V input; requires 1µF ceramic decoupling close to pin for line transient immunity. |
| 2 (GND) | Power and signal ground | Dual-function pin: primary return path and primary thermal conduction path to PCB ground plane. |
| 3 (SHDN) | Active-low enable control | Pulled high to IN for normal operation; driven low (<0.4V) to enter sub-µA shutdown with high-Z output. |
| 4 (BP) | Noise bypass terminal | Connects 10nF capacitor to OUT to reduce reference noise; shorted to OUT internally during shutdown. |
| 5 (OUT) | Regulated 3.3V output | Delivers up to 120mA; bypassed with 1µF ceramic capacitor to GND for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11µVRMS (100Hz–100kHz) enabled by dedicated BP pin and internal bandgap filtering - critical for RF synthesizer power rails. |
| P-channel MOSFET pass device | Eliminates base-drive current, ensuring 40µA ground current independent of load - extends battery runtime in portable medical devices. |
| Single-capacitor stability | Stable with only 1µF X7R/X5R ceramic output capacitor - reduces bill-of-materials and board area vs. legacy LDOs requiring ≥10µF. |
| High PSRR at audio frequencies | 78dB rejection at 1kHz - effectively isolates sensitive analog circuits from digital switching noise on shared power rails. |
| Thermal and current protection | 160°C thermal shutdown with 10°C hysteresis and 130–300mA current limit - prevents damage during sustained overload or ambient overheating. |
Applications
| Bluetooth Audio Transmitter | Portable Digital Camera Sensor Power |
|---|---|
|
Use Scenario: Powers 2.4GHz Bluetooth radio IC and associated crystal oscillator in wireless earbuds. IC Role / Device Role / Timing Role: Low-noise 3.3V supply for RF synthesizer VCO and baseband processor I/O domain. Use Value: 11µVRMS noise prevents phase noise degradation in transmit spectrum; 120mV dropout enables operation until Li-ion drops to 3.42V. |
Use Scenario: Supplies image sensor analog front-end and ADC reference in compact point-and-shoot cameras. IC Role / Device Role / Timing Role: Clean 3.3V bias for CMOS image sensor pixel array and correlated double sampling circuitry. Use Value: 78dB PSRR at 1kHz rejects noise from camera flash LED driver; 40µA quiescent current minimizes standby drain. |
| Industrial Handheld Scanner | Wireless LAN Client Module |
|
Use Scenario: Provides regulated 3.3V to laser diode driver, decode ASIC, and Bluetooth LE interface in rugged barcode scanners. IC Role / Device Role / Timing Role: Primary system LDO for mixed-signal SoC requiring tight voltage tolerance and fast load transient recovery. Use Value: ±3% output accuracy ensures reliable decoding under varying battery voltage; 1ms load transient response maintains symbol recognition during burst reads. |
Use Scenario: Powers 802.11b/g/n WLAN baseband and RF transceiver in USB Wi-Fi dongles and IoT edge nodes. IC Role / Device Role / Timing Role: Dedicated low-noise rail for WLAN RF section and clock generation circuitry. Use Value: 54dB PSRR at 100kHz attenuates switching noise from USB-powered buck converter; SC70-5 footprint fits dense mini-PCIe layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6206P332MR | 3.3V fixed, 100mA max, 250mV dropout at 100mA, 45µVRMS noise, SOT-23-3 package | Lacks BP pin and shutdown; higher dropout limits usable battery range | Select when cost sensitivity outweighs noise/PSRR requirements and board space permits SOT-23-3. |
| Analog Devices ADP121-AUJZ-3.3-R7 | 3.3V fixed, 150mA max, 135mV dropout at 150mA, 30µVRMS noise, TSOT-5 package | Higher noise than MAX8510EXK33-, no BP pin; wider input range (2.3V–5.5V) | Choose when higher output current is required and 30µVRMS noise is acceptable for non-RF loads. |
Compared with XC6206P332MR and ADP121-AUJZ-3.3-R7, the MAX8510EXK33- delivers superior noise performance (11µVRMS) and PSRR (78dB @ 1kHz) due to its BP pin architecture and optimized bandgap design - making it uniquely suitable for RF and precision analog applications where spectral purity is critical.
Availability
MAX8510EXK33- is available at Aetrix Electronics and suitable for Bluetooth portable radios, digital cameras, and industrial handheld scanners requiring stable component supply with guaranteed long-term availability and consistent parametric performance.
Supply support for MAX8510EXK33- 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX8510EXK33- belongs to Maxim's ultra-low-noise LDO family, engineered specifically for battery-powered RF and precision analog systems where noise, PSRR, and quiescent current directly impact signal integrity and runtime.
FAQ
What is the maximum input voltage rating for the MAX8510EXK33-?
The MAX8510EXK33- 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 internal voltage limits, even if within absolute maximum ratings. Always operate the MAX8510EXK33- within 2V–6V for guaranteed performance and reliability across temperature.
Does the MAX8510EXK33- require an external feedback resistor network?
No, the MAX8510EXK33- does not require an external feedback resistor network. It is a factory-preset 3.3V regulator with internal feedback divider. The FB pin is not present on this variant - only the MAX8512 supports adjustable output via external resistors. Using external resistors with the MAX8510EXK33- would disrupt regulation and is not supported.
Can the MAX8510EXK33- be used with a 0.47µF output capacitor?
No, the MAX8510EXK33- is not guaranteed stable with a 0.47µF output capacitor. The datasheet specifies stability with ≥1µF ceramic (X7R/X5R) output capacitance. Using 0.47µF risks oscillation or degraded transient response, especially under light or dynamic loads. Always use 1µF or greater per the manufacturer's validated design.
What is the purpose of the BP pin on the MAX8510EXK33-?
The BP (Bypass) pin on the MAX8510EXK33- connects to an external 10nF capacitor tied to the OUT pin, forming a low-noise filter for the internal bandgap reference. This configuration reduces output voltage noise to 11µVRMS (100Hz–100kHz). During shutdown, the BP pin is internally shorted to OUT, eliminating leakage paths and preserving capacitor charge.
Is the MAX8510EXK33- pin-compatible with other MAX851x variants in SC70-5?
Yes, the MAX8510EXK33- shares identical SC70-5 pinout and footprint with all MAX8510/MAX8511 SC70-5 variants, including MAX8511EXK33-T. Pin functions (IN, GND, SHDN, BP, OUT) are consistent across these parts. However, note that MAX8511 lacks the BP pin function (N.C.), so substituting it for noise-critical applications degrades performance.
MAX8510EXK33- 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):
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX8510EXK33- FAQ
1.How can I place an order for MAX8510EXK33- through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8510EXK33- 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 MAX8510EXK33- reliable?
The price and inventory of MAX8510EXK33- are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8510EXK33- is usually 5 days.
3.What payment methods are accepted for MAX8510EXK33-?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8510EXK33- transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8510EXK33-?
MAX8510EXK33- orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8510EXK33- 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 MAX8510EXK33-?
For technical support, including MAX8510EXK33- datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8510EXK33- requirements.
6.How does Aetrix verify that MAX8510EXK33- is sourced from the original manufacturer or authorized distributors?
All MAX8510EXK33- 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 MAX8510EXK33- meets industry standards.
7.What is the process for return or replacement of MAX8510EXK33-?
All MAX8510EXK33- units undergo pre-shipment inspection (PSI). If there is an issue with MAX8510EXK33-, 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 MAX8510EXK33- part is unused and in its original packaging.
Return procedure for MAX8510EXK33-:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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