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Analog Devices Inc./Maxim Integrated MAX8510ETA33+T
- Part No.:
- MAX8510ETA33+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MAX8510ETA33+T.pdf
- Description:
- IC REG LINEAR 3.3V 120MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,239
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Product details
Overview
The MAX8510ETA33+T from Maxim Integrated is a 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 systems.
For engineers reviewing the MAX8510ETA33+T datasheet, MAX8510ETA33+T pinout, MAX8510ETA33+T application, or MAX8510ETA33+T equivalent, key selection criteria include guaranteed 3.3V ±1% accuracy over temperature, stable operation with only 1μF ceramic output capacitance, shutdown current <1μA, and compatibility with 2mm × 2mm TDFN-EP package layout constraints.
Technical Context
The MAX8510ETA33+T uses a P-channel MOSFET pass transistor (RDS(ON) ≈ 1Ω) enabling low ground current (40μA typical) and minimal dropout voltage across load and input variations. Its bandgap reference (1.225V) feeds an error amplifier that drives the pass gate via internal feedback, ensuring tight regulation without external resistors.
Noise performance is enhanced by a dedicated BP pin accepting a 10nF capacitor to bypass the internal reference, reducing RMS output noise to 11μV. PSRR remains high (54dB at 100kHz) due to integrated noise-bypass architecture and optimized error amplifier frequency response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% (25°C), ±3% over -40°C to +85°C - ensures stable supply for 3.3V logic and RF ICs without calibration. |
| Max Output Current | 120mA guaranteed - supports moderate-power analog/RF loads such as Bluetooth transceivers or ADC drivers. |
| Dropout Voltage | 120mV at 120mA load (VOUT ≥ 3V) - enables operation down to VIN = 3.42V, extending battery life in single-cell Li-ion systems. |
| Output Noise | 11μVRMS (100Hz–100kHz) - meets stringent requirements for PLL/VCO power rails and high-resolution sensor signal chains. |
| PSRR | 78dB at 1kHz, 54dB at 100kHz - suppresses switching noise from adjacent DC/DC converters in mixed-signal PCBs. |
| Ground Current | 40μA typical at light load, ≤220μA in dropout - minimizes quiescent drain in always-on subsystems. |
| Shutdown Current | <1μA - enables deep-sleep modes in portable devices without compromising wake-up latency. |
Pinout & Package
MAX8510ETA33+T is housed in an 8-pin, 2mm × 2mm × 0.8mm TDFN-EP package with exposed pad (EP) internally connected to GND for thermal enhancement. The EP must be soldered to a large ground plane to achieve θJA = 83.9°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6, 8 | N.C. | No internal connection - floating pins; no routing or grounding required. |
| 2 | GND | Power and signal ground reference; also primary thermal path via EP connection. |
| 3 | SHDN | Active-low enable control; logic low (<0.4V) disables regulator and reduces IQ to <1μA. |
| 4 | BP | Noise-bypass terminal; requires 10nF capacitor to OUT to achieve 11μVRMS noise performance. |
| 5, 7 | IN | Unregulated input supply (2V–6V); accepts ceramic input capacitor ≥1μF for stability and line transient suppression. |
| 5, 7 | OUT | Regulated 3.3V output; stable with ≥1μF ceramic capacitor (X7R/X5R dielectric recommended). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11μVRMS (100Hz–100kHz) achieved via dedicated BP pin and internal noise-bypass architecture - critical for VCO/PLL power integrity. |
| High PSRR at RF frequencies | 54dB at 100kHz enables clean power delivery in proximity to switching regulators or digital noise sources. |
| Minimal external components | Only IN and OUT capacitors (1μF each) plus optional 10nF BP capacitor required - reduces BOM count and board area in space-constrained designs. |
| P-channel pass transistor | Eliminates base-drive current loss; maintains 40μA ground current across load range and enables true low-dropout behavior without saturation penalties. |
| Robust protection suite | Integrated current limiting (130–300mA), thermal shutdown (160°C trip, 10°C hysteresis), and infinite short-circuit tolerance - simplifies system-level fault handling. |
Applications
| Bluetooth Radio Module Power | Portable Digital Camera Sensor Bias |
|---|---|
|
Use Scenario: Powers RF transceiver ICs (e.g., TI CC2564, Nordic nRF52840) in compact Bluetooth headsets and wearables where EMI-sensitive analog sections require ultra-clean supply. IC Role / Device Role / Timing Role: Primary LDO supplying VDD_RF and VDD_IO rails; replaces noisier switching regulators to avoid spectral regrowth and desensitization. Use Value: 11μVRMS noise and 78dB PSRR prevent reciprocal mixing and maintain >70dB ACLR in 2.4GHz transmission. |
Use Scenario: Supplies image sensor analog front-end (AFE) and column ADC bias in battery-powered digital cameras and smartphone auxiliary cameras. IC Role / Device Role / Timing Role: Low-noise post-regulator for precision analog signal chain; decouples sensor bias from noisy main SoC rail. Use Value: Enables ≤1 LSB noise floor in 12-bit image sensors by suppressing power-induced fixed-pattern noise (FPN) and temporal noise. |
| Wireless LAN Baseband IC Supply | Low-Power PDA Audio Codec Power |
|
Use Scenario: Provides clean 3.3V supply to WLAN baseband processors (e.g., Qualcomm QCA9377, MEDIATEK MT7628) in portable routers and IoT gateways. IC Role / Device Role / Timing Role: Dedicated LDO for baseband core and I/O domains; isolates digital switching noise from sensitive RF receive paths. Use Value: 54dB PSRR at 100kHz mitigates interference from 802.11n/ac packet bursts, improving RX sensitivity by ≥2dB in coexistence testing. |
Use Scenario: Powers audio codec ICs (e.g., Cirrus CS42L52, TI TLV320AIC3104) in handheld PDAs and portable media players requiring low THD+N audio playback. IC Role / Device Role / Timing Role: Analog supply rail for DAC, headphone amplifier, and microphone preamp stages. Use Value: 11μVRMS noise translates to <−105dBu residual noise floor, supporting 24-bit/96kHz audio fidelity without audible hiss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B332MR-G | 3.3V fixed, 100mA max, 150mV dropout @ 100mA, 25μVRMS noise, SOT-25 package (2.9 × 2.8mm). | Higher noise and lower current limit; suitable only for non-RF analog loads with relaxed PSRR. | Select when footprint size is secondary to cost and 100mA suffices; not recommended for RF or high-precision sensor rails. |
| Analog Devices ADP125ARHZ-3.3-R7 | 3.3V fixed, 500mA max, 135mV dropout @ 500mA, 40μVRMS noise, 6-lead SOT-23 package. | Higher current capability but 3.6× higher output noise; lacks BP pin for noise optimization. | Choose for higher-load applications where noise is less critical (e.g., digital I/O rails); avoid for VCO/PLL or high-resolution ADC supplies. |
Compared with the XC6219B332MR-G and ADP125ARHZ-3.3-R7, the MAX8510ETA33+T uniquely delivers 3.3V regulation with sub-12μV noise and 78dB PSRR in a 2mm × 2mm footprint - making it the only option among the three qualified for RF-sensitive and high-fidelity analog power domains.
Availability
MAX8510ETA33+T is available at Aetrix Electronics and suitable for Bluetooth radios, wireless LAN modules, portable digital cameras, and low-power PDA audio systems requiring stable component supply with RoHS-compliant packaging and full traceability.
Supply support for MAX8510ETA33+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 powering noise-critical RF, sensor, and audio subsystems in battery-operated portable electronics.
FAQ
What is the output voltage tolerance of the MAX8510ETA33+T over temperature?
The MAX8510ETA33+T guarantees ±3% output voltage accuracy across its full operating temperature range of −40°C to +85°C. At +25°C, the tolerance tightens to ±1%, and load regulation contributes ≤±0.003%/mA. This ensures reliable 3.3V operation for interfacing with 3.3V logic families and analog components under real-world thermal conditions.
Can the MAX8510ETA33+T operate stably with a 1μF X7R ceramic output capacitor?
Yes - the MAX8510ETA33+T is explicitly characterized and guaranteed stable with a 1μF X7R ceramic output capacitor across all load conditions and temperatures. Unlike many LDOs requiring minimum ESR or larger capacitance, this device leverages internal compensation optimized for low-ESR ceramics, eliminating need for tantalum or electrolytic alternatives.
What is the purpose of the BP pin on the MAX8510ETA33+T, and what capacitor value is required?
The BP (bypass) pin on the MAX8510ETA33+T connects to an internal noise-reduction circuit tied to the bandgap reference. A 10nF capacitor between BP and OUT is mandatory to achieve the specified 11μVRMS output noise. Values outside 1nF–100nF degrade noise performance; 10nF provides optimal trade-off between noise reduction and startup time.
Does the MAX8510ETA33+T support reverse current blocking?
No - the MAX8510ETA33+T does not incorporate reverse current blocking. When VOUT exceeds VIN, current can flow backward through the P-channel pass transistor. For applications requiring reverse polarity or backfeed protection (e.g., hot-swap, dual-supply systems), an external Schottky diode or ideal diode controller must be added in series with the IN pin.
How does thermal performance differ between the SC70 and TDFN packages of the MAX8510?
The MAX8510ETA33+T in 8-pin TDFN-EP achieves θJA = 83.9°C/W (vs. 324°C/W for SC70), enabling ~3.9× higher power dissipation before thermal shutdown. With EP soldered to a 200mm² copper pour, it sustains 120mA at VIN = 5.5V (PD = 252mW) without exceeding +125°C junction temperature - a critical advantage over SC70 in thermally dense layouts.
MAX8510ETA33+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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):
- 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:
- 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)
MAX8510ETA33+T FAQ
1.How can I place an order for MAX8510ETA33+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8510ETA33+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 MAX8510ETA33+T reliable?
The price and inventory of MAX8510ETA33+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8510ETA33+T is usually 5 days.
3.What payment methods are accepted for MAX8510ETA33+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8510ETA33+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8510ETA33+T?
MAX8510ETA33+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8510ETA33+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 MAX8510ETA33+T?
For technical support, including MAX8510ETA33+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8510ETA33+T requirements.
6.How does Aetrix verify that MAX8510ETA33+T is sourced from the original manufacturer or authorized distributors?
All MAX8510ETA33+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 MAX8510ETA33+T meets industry standards.
7.What is the process for return or replacement of MAX8510ETA33+T?
All MAX8510ETA33+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8510ETA33+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 MAX8510ETA33+T part is unused and in its original packaging.
Return procedure for MAX8510ETA33+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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