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Analog Devices Inc./Maxim Integrated MAX8511EXK15+
- Part No.:
- MAX8511EXK15+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX8511EXK15+.pdf
- Description:
- IC REG LINEAR 1.5V 120MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,177
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Product details
Overview
MAX8511EXK15+ from Maxim Integrated is a 1.5V fixed-output, ultra-low-noise, low-dropout linear regulator with P-channel MOSFET pass element, delivering up to 120mA output current, 120mV dropout at full load, and 40μA ground current. It operates from 2V to 6V input and targets noise-sensitive analog and RF power rails in portable electronics.
For engineers reviewing the MAX8511EXK15+ datasheet, MAX8511EXK15+ pinout, MAX8511EXK15+ application, or MAX8511EXK15+ equivalent, key selection criteria include guaranteed 120mA output capability, no-bypass-capacitor operation (unlike MAX8510), ±3% output voltage accuracy over temperature and load, and SC70-5 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX8511EXK15+ uses an internal 1.225V bandgap reference and error amplifier to regulate output against load and line variations, with shutdown logic that reduces supply current below 1μA. Its P-channel MOSFET pass transistor eliminates base-drive current, enabling stable 40μA quiescent current across load and input voltage ranges.
No external bypass capacitor is required-unlike the MAX8510-due to optimized internal noise suppression architecture. The device integrates thermal shutdown (160°C trip, 10°C hysteresis) and current limiting (130–300mA range), and remains stable with only 1μF ceramic input and output capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±3% over -40°C to +85°C, 100µA–80mA load |
| Max Output Current | 120mA continuous; supports peak loads without foldback or thermal shutdown under typical conditions |
| Dropout Voltage | 135mV at 120mA for VOUT = 1.5V; enables operation down to VIN = 1.635V while maintaining regulation |
| Ground Current | 40µA typical at light load; rises to 220µA in dropout-critical for battery runtime optimization |
| PSRR | 72dB at 1kHz, 46dB at 100kHz-sufficient for filtering switching regulator ripple in mixed-signal systems |
| Output Noise | 230µVRMS (100Hz–100kHz); higher than MAX8510 but acceptable for non-precision analog rails |
| Input Voltage Range | 2V to 6V-compatible with single Li-ion, dual alkaline, or regulated intermediate supplies |
Pinout & Package
MAX8511EXK15+ is housed in a RoHS-compliant 5-pin SC70 package (2.0mm × 1.25mm × 0.95mm), with exposed pad not present (TDFN variant uses EP). Pin 1 is IN, Pin 2 is GND, Pin 3 is SHDN, Pin 4 is N.C., and Pin 5 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Unregulated input supply | Accepts 2V–6V; requires 1µF ceramic decoupling close to pin for stability and transient response |
| 2 - GND | Power and signal reference ground | Primary thermal path; must connect to large copper area to maintain <85°C junction under 120mA load |
| 3 - SHDN | Active-low enable control | Pull ≤0.4V to disable; draws <1µA in shutdown; connect to IN for always-on operation |
| 4 - N.C. | No internal connection | Not bonded; must remain unconnected-no routing or soldering allowed |
| 5 - OUT | Regulated 1.5V output | Delivers up to 120mA; bypassed with 1µF ceramic capacitor to GND for ESR-stable operation |
Key Features
| Feature | Design Value |
|---|---|
| No external bypass capacitor required | Eliminates BP pin and 10nF capacitor-reduces BOM count and board area vs. MAX8510 |
| Stable with 1µF ceramic output capacitor | Enables use of small, low-ESR X5R/X7R MLCCs without phase-margin risk across -40°C to +85°C |
| Ultra-low ground current | 40µA typical at light load extends battery life in standby modes of portable devices |
| Integrated protection | Thermal shutdown (160°C) and current limit (130–300mA) prevent damage during fault conditions |
| Small SC70-5 footprint | 2.0mm × 1.25mm outline allows placement in dense RF/analog sections without compromising layout isolation |
Applications
| Bluetooth Audio Transceivers | Digital Camera Image Sensors |
|---|---|
|
Use Scenario: Powering RF front-end and codec ICs in Bluetooth headsets and speaker modules where switching noise must be minimized. IC Role / Device Role / Timing Role: Low-noise 1.5V supply for VCO bias, LNA, and audio DAC sections-replacing switching regulators to avoid spectral contamination. Use Value: 230µVRMS noise and 72dB PSRR at 1kHz suppress DC-DC ripple coupling into sensitive RF paths, improving SNR by >12dB. |
Use Scenario: Supplying CMOS image sensor analog core and column ADC circuitry in compact digital cameras and smartphone auxiliary cameras. IC Role / Device Role / Timing Role: Clean 1.5V rail for pixel readout and analog signal chain-placed adjacent to sensor die to minimize trace inductance. Use Value: 120mA capability supports burst-mode sensor operation; 135mV dropout enables use of partially depleted batteries down to 1.635V input. |
| Portable Medical Pulse Oximeters | Industrial Handheld Scanners |
|
Use Scenario: Providing regulated 1.5V for photodiode transimpedance amplifiers and analog front-ends in battery-powered oximetry sensors. IC Role / Device Role / Timing Role: Ultra-low-quiescent LDO powering precision analog signal conditioning-operating continuously during patient monitoring. Use Value: 40µA ground current extends single-AA battery life beyond 12 months in sleep mode; ±3% accuracy ensures consistent LED drive calibration. |
Use Scenario: Delivering 1.5V to laser diode drivers and barcode decode ASICs in ruggedized handheld scanners used in logistics and warehousing. IC Role / Device Role / Timing Role: Primary analog supply for high-speed timing-critical decode logic and optical interface circuits. Use Value: SC70-5 size fits within tight mechanical constraints; thermal shutdown protects against sustained high-current bursts during aggressive scanning duty cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B152MR-G | 1.5V fixed, 150mA, 120mV dropout, 25µA IQ, SOT-25 package (larger than SC70) | Lacks thermal shutdown; lower noise (15µVRMS) but no integrated current limit | Select when lowest quiescent current is critical and board space allows SOT-25; verify thermal margin without shutdown protection. |
| Analog Devices ADP160ACBZ-1.5-R7 | 1.5V fixed, 150mA, 195mV dropout @150mA, 550nA shutdown current, 5-lead TSOT | Higher dropout limits usable battery range; superior shutdown leakage but larger package and lower PSRR (65dB @1kHz) | Prefer for ultra-deep sleep applications requiring sub-1µA shutdown; accept trade-off in dropout and noise performance. |
Compared with MAX8511EXK15+, the XC6219B152MR-G offers lower IQ but lacks fault protection, while the ADP160ACBZ-1.5-R7 provides nanoscale shutdown current at the cost of higher dropout and reduced ripple rejection-making MAX8511EXK15+ optimal for balanced noise, protection, and size in portable 1.5V rails.
Availability
MAX8511EXK15+ is available at Aetrix Electronics and suitable for Bluetooth accessories, digital camera modules, portable medical sensors, and industrial handheld scanners requiring stable component supply with lead-free compliance and full traceability.
Supply support for MAX8511EXK15+ 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) designs high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX8510/MAX8511/MAX8512 family was engineered specifically for ultra-low-noise, low-quiescent-power regulation in space-constrained portable electronics-emphasizing SC70 integration, ceramic capacitor compatibility, and robust fault protection.
FAQ
What is the maximum input voltage rating for MAX8511EXK15+?
The absolute maximum input voltage for MAX8511EXK15+ is +7V applied between IN and GND. However, the recommended operating range is 2V to 6V. Exceeding 6V risks exceeding the 0.247W power dissipation limit in the SC70 package at ambient temperatures above +70°C, potentially triggering thermal shutdown or long-term reliability degradation.
Does MAX8511EXK15+ require an external bypass capacitor on the BP pin?
No, MAX8511EXK15+ does not have a BP (bypass) pin and requires no external bypass capacitor-unlike the MAX8510. Its internal architecture achieves 230µVRMS output noise without external BP capacitance, simplifying layout and reducing BOM count. This is confirmed in the Pin Description table and Typical Operating Circuits section of the datasheet.
What is the output voltage accuracy specification for MAX8511EXK15+ across temperature and load?
MAX8511EXK15+ guarantees ±3% output voltage accuracy over the full -40°C to +85°C temperature range and for load currents from 100µA to 80mA. At +25°C and 1mA load, accuracy tightens to ±1%. This tolerance ensures reliable operation of 1.5V logic and analog circuits without post-regulation trimming.
Can MAX8511EXK15+ be used with ceramic output capacitors smaller than 1µF?
No-MAX8511EXK15+ is specified and tested for stability only with ≥1µF ceramic output capacitance (X5R or X7R dielectric). Using smaller values risks oscillation or poor transient response, as shown in the "Region of Stable COUT ESR vs. Load Current" graph. For designs requiring <1µF, a different regulator with enhanced stability architecture must be selected.
How does the shutdown functionality behave in MAX8511EXK15+?
When SHDN is pulled low (<0.4V), MAX8511EXK15+ disables its voltage reference, error amplifier, and pass transistor, reducing total supply current to <1µA. The output enters high-impedance state-neither sourcing nor sinking current. Exit delay is 300µs typical, measured from SHDN rising above 1.5V to VOUT reaching 90% of final value.
MAX8511EXK15+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 120mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- PSRR:
- 72dB ~ 46dB (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
MAX8511EXK15+ FAQ
1.How can I place an order for MAX8511EXK15+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8511EXK15+ 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 MAX8511EXK15+ reliable?
The price and inventory of MAX8511EXK15+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8511EXK15+ is usually 5 days.
3.What payment methods are accepted for MAX8511EXK15+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8511EXK15+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8511EXK15+?
MAX8511EXK15+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8511EXK15+ 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 MAX8511EXK15+?
For technical support, including MAX8511EXK15+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8511EXK15+ requirements.
6.How does Aetrix verify that MAX8511EXK15+ is sourced from the original manufacturer or authorized distributors?
All MAX8511EXK15+ 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 MAX8511EXK15+ meets industry standards.
7.What is the process for return or replacement of MAX8511EXK15+?
All MAX8511EXK15+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX8511EXK15+, 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 MAX8511EXK15+ part is unused and in its original packaging.
Return procedure for MAX8511EXK15+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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