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Analog Devices Inc./Maxim Integrated MAX8527EUD+
- Part No.:
- MAX8527EUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MAX8527EUD+.pdf
- Description:
- IC REG LINEAR POS ADJ 2A 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:388
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Product details
Overview
MAX8527EUD+ from Maxim Integrated is a 2A, low-dropout linear regulator with PMOS pass transistor, 1.425V–3.6V input range, 0.5V–(VIN−0.2V) adjustable output, ±1.4% accuracy over 0°C to +85°C, and integrated power-OK (POK) output. It delivers stable voltage regulation for high-current post-regulation in servers and optical modules.
For engineers reviewing the MAX8527EUD+ datasheet, MAX8527EUD+ pinout, MAX8527EUD+ application, or MAX8527EUD+ equivalent, this page provides verified technical context, real-world design meaning of specifications, validated pin functions, confirmed alternative parts, and supply-chain support details specific to the MAX8527EUD+ variant.
Technical Context
The MAX8527EUD+ uses an internal p-channel MOSFET pass device with 50mΩ typical on-resistance, enabling 200mV dropout at 2A while maintaining low 440µA operating ground current. Its feedback loop references a precise 500mV FB threshold with ±1.4% total output error across load, line, and temperature.
It integrates logic-controlled shutdown (<50µA quiescent), soft-start to limit inrush, short-circuit protection (4A current limit), thermal shutdown (+165°C trip), and an open-drain POK output that asserts high when VOUT is within ±10% of nominal-delayed by 50µs after threshold crossing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.425V to 3.6V - supports direct regulation from single-cell Li-ion or multi-rail intermediate supplies without pre-regulation. |
| Output Current | 2A continuous - sustains full load under worst-case thermal conditions with proper PCB heatsinking via exposed pad. |
| Dropout Voltage | 200mV max at 2A - enables operation with minimal headroom, e.g., 1.7V out from 1.9V input, critical for low-voltage core rails. |
| Output Accuracy | ±1.4% over 0°C to +85°C - ensures system-level voltage margin compliance for DDR memory or FPGA I/O rails. |
| FB Threshold | 500mV ±7mV - sets output via external resistor divider; low tolerance minimizes output error from divider ratio drift. |
| POK Response Delay | 25µs to 100µs - provides glitch-free power-good assertion, compatible with ASIC reset timing requirements. |
| Ground Current | 440µA typical at 2A - remains stable across load and input voltage, unlike bipolar-based LDOs, simplifying power budgeting. |
Pinout & Package
The MAX8527EUD+ is housed in a 14-pin TSSOP package (5mm × 6.4mm, 1.1mm profile) with exposed thermal pad (EP) soldered to PCB ground for optimal power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable control input | Active-high logic signal; pull low to enter <50µA shutdown mode with internal 10kΩ output pull-down. |
| IN (Pins 2–5) | Regulator input supply | Accepts 1.425V–3.6V; requires ≥2.2µF ceramic bypass to GND close to pins for stability at 2A transients. |
| GND (Pin 8) | Power and signal reference | Electrical return path and primary thermal conduction path; must connect to large ground plane with multiple vias. |
| FB (Pin 9) | Feedback sensing node | Monitors output via resistor divider; 500mV reference enables precise adjustable outputs down to 0.5V. |
| OUT (Pins 10–13) | Regulated output | Delivers up to 2A; requires ≥10µF low-ESR ceramic capacitor to GND for transient response ≤45mV deviation. |
| POK (Pin 6) | Power-OK status output | Open-drain signal asserting high when VOUT is within ±10%; requires external pull-up to IN or system rail. |
| EP (Underside) | Thermal pad | Must be soldered to PCB ground plane to achieve specified thermal resistance and sustain 2A continuous operation. |
Key Features
| Feature | Design Value |
|---|---|
| p-Channel MOSFET Pass Device | Eliminates base-drive current; maintains 440µA ground current independent of load or input headroom, reducing system power loss. |
| Fast Transient Response | 45mV output deviation for 20mA→2A load step with only 10µF output capacitor-enables compact, low-BOM-count designs. |
| Integrated POK Output | Provides system-level power sequencing confirmation without external comparators or timers, reducing component count and board area. |
| Ceramic Capacitor Compatibility | Stable with 2.2µF input and 10µF output ceramics-avoids costly tantalum or electrolytic capacitors and improves reliability. |
| Thermal & Short-Circuit Protection | Auto-recovering shutdown at +165°C junction temp and 4A current limit-prevents damage during sustained overload or layout faults. |
Applications
| Server Core Rails | Optical Module Bias |
|---|---|
Use Scenario: Regulating 1.2V/2A core voltage for high-performance CPUs in 1U rack servers with tight thermal constraints. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, low-noise power to CPU cores with fast transient response to dynamic load changes. Use Value: 200mV dropout enables efficient use of intermediate 1.4V rail; POK output synchronizes CPU reset sequence with stable power delivery. | Use Scenario: Supplying bias voltage to laser diodes and transimpedance amplifiers in SFP+ and QSFP optical transceivers. IC Role / Device Role / Timing Role: Low-noise, low-ripple LDO providing stable analog bias under rapid digital modulation-induced load transients. Use Value: 45mV transient deviation and 60dB PSRR at 10kHz ensure minimal laser wavelength drift and BER degradation. |
| Base Station RF Front-End | Notebook GPU Core Power |
Use Scenario: Powering RF power amplifiers and analog front-end ICs in LTE/5G macro base stations where EMI sensitivity is critical. IC Role / Device Role / Timing Role: Low-EMI, ceramic-capable LDO isolating sensitive RF circuitry from noisy digital supply domains. Use Value: No external compensation required; 5mm×6.4mm footprint fits dense RF module layouts; exposed pad enables direct thermal coupling to metal shield. | Use Scenario: Delivering 0.85V/2A to discrete GPU cores in thin-and-light notebooks with aggressive thermal envelope limits. IC Role / Device Role / Timing Role: High-current, low-profile LDO supporting dynamic voltage scaling (DVS) via FB divider programming. Use Value: Adjustable output down to 0.5V allows future-proofing for next-gen GPU voltage requirements; soft-start prevents inrush-induced system brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A8300RGRT | 2A, 1.1V–3.3V input, 75mV dropout at 2A, 35µA IQ, no POK output | Lacks power-good signaling; optimized for ultra-low noise (4.4µVRMS) rather than POK-integrated sequencing | Select when lowest possible output noise is prioritized over system-level power monitoring. |
| NCP1117ST50T3G | 1A, 4.75V–15V input, 1.2V dropout at 1A, ±2% accuracy, TO-220/SOT-223 package | Lower current, higher dropout, wider input range, no POK, larger thermal footprint | Select for cost-sensitive industrial applications with >4.75V inputs and relaxed size/thermal constraints. |
Compared with TPS7A8300RGRT and NCP1117ST50T3G, the MAX8527EUD+ uniquely combines 2A capability, sub-200mV dropout, integrated POK, and TSSOP thermal performance-making it optimal for space-constrained, sequenced-power systems requiring both high current and status feedback.
Availability
MAX8527EUD+ is available at Aetrix Electronics and suitable for server power delivery, optical transceiver biasing, and base station RF front-end regulation requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MAX8527EUD+ 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 demanding industrial, communications, and computing applications.
The MAX8527EUD+ belongs to Maxim's high-current, low-dropout LDO family designed specifically for post-regulation in thermally constrained, high-density systems where precision, speed, and integrated power monitoring are essential.
FAQ
What is the maximum output current and dropout voltage specification for the MAX8527EUD+?
The MAX8527EUD+ delivers up to 2A of continuous output current with a maximum dropout voltage of 200mV at that load. This specification is guaranteed over temperature (−40°C to +85°C) and ensures reliable operation even with minimal input-to-output headroom, such as generating 1.5V from a 1.7V source. The 200mV dropout is measured at VIN = 1.425V, IOUT = 2A, and VFB = 480mV per the official datasheet.
Does the MAX8527EUD+ include power-good monitoring, and how does it function?
Yes, the MAX8527EUD+ features a dedicated open-drain power-OK (POK) output on Pin 6. It transitions high when the regulated output is within ±10% of its nominal value and includes a 25µs to 100µs fault delay to prevent false triggering. During shutdown or output fault, POK is forced low. An external pull-up resistor to IN or another supply rail is required, as specified in the MAX8527EUD+ functional diagram and pin description.
What package type and thermal features does the MAX8527EUD+ use?
The MAX8527EUD+ is packaged in a 14-pin TSSOP with an exposed thermal pad (EP) on the underside. This pad must be soldered directly to the PCB ground plane using multiple thermal vias to achieve the specified 1.7W power dissipation at +70°C ambient. The 5mm × 6.4mm footprint and 1.1mm profile enable high-density placement in space-limited applications like optical modules and notebook VRMs.
Can the MAX8527EUD+ operate with ceramic capacitors, and what values are recommended?
Yes, the MAX8527EUD+ is fully compatible with ceramic capacitors. A minimum 2.2µF ceramic capacitor is required between IN and GND, and a minimum 10µF ceramic capacitor (low ESR) is required between OUT and GND for stable 2A operation. Smaller output capacitance may be used for lower loads-COUT = IOUT(max) × (1µF/200mA)-but the 10µF value ensures the specified 45mV transient deviation and phase margin.
How does the enable (EN) pin function on the MAX8527EUD+, and what is its threshold?
The EN pin (Pin 1) is an active-high logic input with a typical enable threshold of 1.2V and disable threshold of 0.4V. Pulling EN low places the MAX8527EUD+ into shutdown mode, reducing ground current to <50µA. During shutdown, an internal 10kΩ resistor pulls the OUT pins toward GND. For normal operation, EN may be tied directly to IN, as confirmed in the MAX8527EUD+ typical application circuit and electrical characteristics table.
MAX8527EUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 3.4V
- Voltage Dropout (Max):
- 0.2V @ 2A
- Current - Output:
- 2A
- Current - Quiescent (Iq):
- 440 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP-EP
MAX8527EUD+ FAQ
1.How can I place an order for MAX8527EUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8527EUD+ 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 MAX8527EUD+ reliable?
The price and inventory of MAX8527EUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8527EUD+ is usually 5 days.
3.What payment methods are accepted for MAX8527EUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8527EUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8527EUD+?
MAX8527EUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8527EUD+ 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 MAX8527EUD+?
For technical support, including MAX8527EUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8527EUD+ requirements.
6.How does Aetrix verify that MAX8527EUD+ is sourced from the original manufacturer or authorized distributors?
All MAX8527EUD+ 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 MAX8527EUD+ meets industry standards.
7.What is the process for return or replacement of MAX8527EUD+?
All MAX8527EUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX8527EUD+, 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 MAX8527EUD+ part is unused and in its original packaging.
Return procedure for MAX8527EUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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