My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8510ETA45+
- Part No.:
- MAX8510ETA45+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MAX8510ETA45+.pdf
- Description:
- ULTRA-LOW-NOISE, HIGH PSRR, LOW-
- Quantity:
- Payment:
- Shipping:
Inventory:1,845
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8510ETA45+ from Maxim Integrated is a 4.5V 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 RF and precision signal-chain applications.
For engineers reviewing the MAX8510ETA45+ datasheet, MAX8510ETA45+ pinout, MAX8510ETA45+ application, or MAX8510ETA45+ equivalent, key selection criteria include guaranteed 120mA output current, stable operation with only 1µF ceramic output capacitance, sub-1µA shutdown current, and compatibility with 2mm × 2mm TDFN-EP packaging for space-constrained battery-powered designs.
Technical Context
The MAX8510ETA45+ employs an innovative bandgap reference core combined with a dedicated BP (bypass) pin and internal error amplifier to achieve ultra-low noise performance. Its P-channel MOSFET pass transistor delivers low dropout and eliminates base-drive current, enabling 40µA ground current across load and temperature.
It integrates thermal shutdown (160°C trip, 10°C hysteresis), current limiting (130–300mA range), and shutdown logic that disables the reference, error amp, and gate driver - placing OUT in high-impedance state with <1µA supply current. The BP pin requires a 10nF capacitor to OUT to realize the specified 11µVRMS noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.5V ±3% over -40°C to +85°C - ensures stable rail for RF power amplifiers or ADC reference supplies. |
| Max Output Current | 120mA continuous - sufficient for powering multiple low-power analog blocks or single-channel RF ICs. |
| Dropout Voltage | 120mV at 120mA load - enables operation down to VIN = 4.62V, extending usable battery life in 4.8V Li-ion systems. |
| Output Noise | 11µVRMS (100Hz–100kHz) with 10nF BP capacitor - meets stringent requirements for PLL VCO supplies and audio DAC references. |
| PSRR | 78dB at 1kHz, 54dB at 100kHz - suppresses switching noise from adjacent DC/DC converters feeding mixed-signal subsystems. |
| Ground Current | 40µA typical at light load, 220µA in dropout - minimizes quiescent power loss in always-on sensor nodes. |
| Shutdown Current | <1µA - enables deep sleep modes in portable devices without compromising wake-up latency. |
Pinout & Package
MAX8510ETA45+ is housed in an 8-pin, 2mm × 2mm × 0.8mm TDFN-EP package with exposed pad (EP) internally connected to GND. The EP must be soldered to a large PCB ground plane for optimal thermal performance (θJA = 83.9°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Unregulated input supply | Accepts 2V to 6V input; requires 1µF ceramic capacitor to GND for stability and line-transient suppression. |
| 2 (GND) | Ground reference and thermal path | Primary return for all currents; connects internally to EP - must tie to solid ground plane for thermal management. |
| 3 (SHDN) | Active-low shutdown control | Pull ≤0.4V to disable regulator; draws <0.01µA bias current - compatible with GPIOs of ultra-low-power MCUs. |
| 4 (BP) | Noise bypass terminal | Connects to OUT via 10nF capacitor; enables 11µVRMS noise performance - shorted to OUT during shutdown. |
| 5 (OUT) | Regulated 4.5V output | Delivers up to 120mA; requires 1µF ceramic capacitor to GND; exhibits high-impedance state when SHDN is active. |
| 6, 7, 8 (N.C.) | No connection | Not internally bonded - no electrical function; leave unconnected per datasheet guidance. |
| EP | Exposed thermal pad | Internally tied to GND; mandatory connection to PCB ground plane for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11µVRMS (100Hz–100kHz) with 10nF BP cap - directly supports low-phase-noise RF local oscillators and high-SNR audio paths. |
| Stable with minimal capacitance | Guaranteed stability using only 1µF ceramic output capacitor - reduces BOM count and board area vs. traditional LDOs requiring ≥10µF. |
| P-channel MOSFET pass device | Eliminates base-drive current and saturation losses - maintains 40µA ground current across full load range and temperature. |
| Integrated protection | Thermal shutdown (160°C, 10°C hysteresis) and current limit (130–300mA) - enables robust operation in unattended embedded systems. |
| Low shutdown current | <1µA shutdown supply current - extends battery shelf life in IoT edge sensors and wearables with infrequent wake cycles. |
Applications
| RF Power Amplifier Bias Supply | High-Resolution ADC Reference Rail |
|---|---|
|
Use Scenario: Providing clean, low-noise bias voltage to GaAs or SiGe RF power amplifiers in Bluetooth/WLAN modules. IC Role / Device Role / Timing Role: Low-noise LDO delivering stable 4.5V rail independent of noisy switched-mode supply rails. Use Value: 11µVRMS noise and 78dB PSRR at 1kHz prevent AM-to-PM conversion and spectral regrowth in transmit chains. |
Use Scenario: Generating reference voltage for 16-bit+ SAR or sigma-delta ADCs in portable instrumentation. IC Role / Device Role / Timing Role: Precision voltage source with tight output accuracy (±3%) and minimal load regulation (0.003%/mA). Use Value: Enables full-resolution performance by eliminating code-dependent errors caused by supply ripple or ground bounce. |
| Digital Camera Image Sensor Core Supply | Portable Audio Codec Power Rail |
|
Use Scenario: Powering CMOS image sensor analog core and PLL circuits in compact digital cameras. IC Role / Device Role / Timing Role: Ultra-low-noise 4.5V regulator with fast load transient response (≤1ms settling) for pixel readout timing. Use Value: 120mV dropout allows operation until battery reaches 4.62V, while 11µVRMS noise prevents fixed-pattern noise in dark frames. |
Use Scenario: Supplying analog front-end and headphone drivers in personal stereo devices. IC Role / Device Role / Timing Role: Low-quiescent LDO maintaining 4.5V rail during dynamic audio playback with burst current demands. Use Value: 40µA ground current extends playback time; 120mA output supports dual-channel Class AB headphone amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A4700RGWR | 20V input, 1µVRMS noise (10Hz–100kHz), 1A output, SO-8 package | Higher voltage capability and lower noise, but larger footprint and higher cost - suited for industrial-grade precision analog systems. | Select when >4.5V input or sub-µV noise is required; not drop-in due to different pinout, voltage range, and package. |
| ADP1740ACPZ-4.5-R7 | 6V input, 20µVRMS noise (100Hz–100kHz), 500mA output, 3mm × 3mm LFCSP | Higher current and smaller noise bandwidth, but 2× higher output noise and larger package than MAX8510ETA45+. | Choose for higher load current needs where moderate noise is acceptable; requires layout revision due to different pin assignment and thermal pad size. |
Compared with TPS7A4700RGWR and ADP1740ACPZ-4.5-R7, the MAX8510ETA45+ offers the smallest footprint (2mm × 2mm), lowest system-level noise contribution in its 100Hz–100kHz band, and optimal balance of 120mA drive capability and sub-1µA shutdown for space- and battery-constrained RF applications.
Availability
MAX8510ETA45+ is available at Aetrix Electronics and suitable for cellular radios, portable audio codecs, digital camera sensor supplies, and Bluetooth accessory power management requiring stable component supply with RoHS-compliant packaging and full traceability.
Supply support for MAX8510ETA45+ 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 analog blocks - such as VCOs, ADCs, and RF transceivers - in battery-operated portable electronics.
FAQ
What is the exact output voltage tolerance of the MAX8510ETA45+ over temperature?
The MAX8510ETA45+ guarantees ±3% output voltage accuracy over the full operating temperature range of -40°C to +85°C, with typical deviation under ±0.4% at +25°C. This specification is verified across load (100µA to 80mA) and line (VIN = VOUT + 0.5V to 6V) conditions per the datasheet's Electrical Characteristics table. The MAX8510ETA45+ achieves this stability using a trimmed 1.225V bandgap reference and precision internal feedback divider.
Can the MAX8510ETA45+ operate stably with a 0.47µF ceramic output capacitor?
No - the MAX8510ETA45+ requires a minimum of 1µF ceramic output capacitance for guaranteed stability across all loads and temperatures, as confirmed in the "Capacitor Selection and Regulator Stability" section and Typical Operating Characteristics (toc20). Using 0.47µF risks phase margin degradation and potential oscillation, especially near dropout or at low temperatures with Z5U/Y5V dielectrics. X7R/X5R 1µF capacitors are recommended for full-range reliability.
Is the BP pin on the MAX8510ETA45+ mandatory for operation?
Yes - the BP pin is essential to achieve the specified 11µVRMS output noise. It must be connected to the OUT pin via a 10nF capacitor (CBP); omitting this capacitor degrades noise performance to 230µVRMS. During shutdown, BP is internally shorted to OUT, so no external discharge path is needed. The BP pin has no function in the MAX8511/MAX8512 variants, confirming its dedicated role in MAX8510 noise reduction.
Does the MAX8510ETA45+ support reverse current blocking?
No - the MAX8510ETA45+ does not integrate reverse current blocking. Its P-channel MOSFET pass transistor allows reverse current flow from OUT to IN when VOUT > VIN, as confirmed by the absence of reverse-blocking specifications in the Absolute Maximum Ratings and Electrical Characteristics tables. External diode or ideal diode circuitry is required if backfeed prevention is needed in multi-rail systems.
What is the thermal performance difference between the SC70 and TDFN packages for the MAX8510ETA45+?
The MAX8510ETA45+ uses the TDFN-EP package (θJA = 83.9°C/W), offering significantly better thermal performance than the SC70 variant (θJA = 324°C/W). With identical 120mA load and 1.2V dropout (144mW dissipation), the TDFN version exhibits ~12°C junction rise above ambient versus ~47°C for SC70 - enabling reliable operation in compact enclosures without forced airflow. The exposed pad (EP) must be soldered to a thermal ground plane to realize this advantage.
MAX8510ETA45+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 120mA
- Current - Quiescent (Iq):
- 500 µA
- Current - Supply (Max):
- -
- PSRR:
- 78dB ~ 54dB (1kHz ~ 100kHz)
- Control Features:
- Current Limit, Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
MAX8510ETA45+ FAQ
1.How can I place an order for MAX8510ETA45+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8510ETA45+ 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 MAX8510ETA45+ reliable?
The price and inventory of MAX8510ETA45+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8510ETA45+ is usually 5 days.
3.What payment methods are accepted for MAX8510ETA45+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8510ETA45+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8510ETA45+?
MAX8510ETA45+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8510ETA45+ 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 MAX8510ETA45+?
For technical support, including MAX8510ETA45+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8510ETA45+ requirements.
6.How does Aetrix verify that MAX8510ETA45+ is sourced from the original manufacturer or authorized distributors?
All MAX8510ETA45+ 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 MAX8510ETA45+ meets industry standards.
7.What is the process for return or replacement of MAX8510ETA45+?
All MAX8510ETA45+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX8510ETA45+, 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 MAX8510ETA45+ part is unused and in its original packaging.
Return procedure for MAX8510ETA45+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8510ETA45+ Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
