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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearMAX5024LASA+T
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MAX5024LASA+T - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number
MAX5024LASA+T
Manufacturer
Maxim Integrated
Allelco Part Number
32D-MAX5024LASA+T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
12,420 pcs available, New & Original
Parts Description
IC REG LIN POS ADJ 150MA 8SOIC
Package
8-SOIC
Data sheet
MAX5024LASA+T.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 12420

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Specifications

MAX5024LASA+T Tech Specifications
Analog Devices Inc./Maxim Integrated - MAX5024LASA+T technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc./Maxim Integrated - MAX5024LASA+T

Product Attribute Attribute Value
Manufacturer Maxim Integrated
Voltage Dropout (Max) 1.5V @ 150mA
Voltage - Output (Min/Fixed) 2.5V (5V)
Voltage - Output (Max) 11V
Voltage - Input (Max) 65V
Supplier Device Package 8-SOIC
Series -
Protection Features Over Temperature, Short Circuit
Package / Case 8-SOIC (0.154", 3.90mm Width)
Package Tape & Reel (TR)
Product Attribute Attribute Value
PSRR 54dB (100Hz)
Output Type Adjustable (Fixed)
Output Configuration Positive
Operating Temperature -40°C ~ 125°C
Number of Regulators 1
Mounting Type Surface Mount
Current - Quiescent (Iq) 140 µA
Current - Output 150mA
Control Features Enable, Hold, Reset
Base Product Number MAX5024

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

MAX5024LASA+T Image
MAX5024LASA+T (1)

Manufacturer Part Number

MAX5024LASA+T

Manufacturer

Analog Devices

Introduction

Low Drop Out (LDO) Regulator, suitable for various power management applications

Product Features and Performance

Positive Adjustable Output Voltage

Low Dropout Voltage

Single Regulator

High PSRR (Power Supply Rejection Ratio)

Thermal and Short Circuit Protection

Product Advantages

High Input Voltage Capability

Low Quiescent Current

Stable with Low ESR Capacitors

Enable, Hold, and Reset Control Features

Key Technical Parameters

Input Voltage up to 65V

Output Voltage Adjustable from 2.5V to 11V

Output Current up to 150mA

Dropout Voltage 1.5V at 150mA

Quiescent Current 140 µA

PSRR 54dB at 100Hz

Quality and Safety Features

Over-Temperature Protection

Short Circuit Protection

Compatibility

Compatible with Other Devices That Use 8-SOIC Package

Can Be Used with a Variety of External Components

Application Areas

Power Supply for Microcontrollers

Industrial Control Systems

Battery-Powered Devices

Automotive Electronics

Product Lifecycle

Active Status

Not Nearing Discontinuation

Replacements and Upgrades Not Specified

Several Key Reasons to Choose This Product

High-Voltage Input Suitability

Energy-Efficient with Low Quiescent Current

Enhanced Reliability due to Protective Features

Versatile with Adjustable Output Voltage

Good Noise Rejection with High PSRR

Wide Operating Temperature Range

Frequently Asked Questions(FAQ)

How does the MAX5024LASA+T's dropout voltage compare to other low-dropout regulators in its class, and what design implications does this have for systems requiring high input-to-output differentials?
The MAX5024LASA+T exhibits a maximum dropout voltage of 1.5V at 150mA output current, which is relatively higher than modern LDOs optimized for ultra-low dropout performance. This characteristic becomes significant when operating with input voltages close to the regulated output level—for example, attempting to maintain a 3.3V output from a 4.0V input would require the regulator to operate near its dropout limit. In such scenarios, the efficiency drops substantially, and transient response may degrade due to reduced headroom. Compared to devices like the TPS7A8101 (with sub-300mV dropout), the MAX5024LASA+T trades efficiency for cost and integration simplicity, making it better suited for applications where input margins are sufficient and thermal dissipation is manageable.
What are the key differences between the MAX5024LASA+T and similar adjustable LDOs such as the LM317 or LT1086 in terms of quiescent current and control features?
Unlike older fixed-voltage or simple adjustable regulators like the LM317 or LT1086, the MAX5024LASA+T offers significantly lower quiescent current at 140µA, which enhances battery life in portable applications. Additionally, it integrates advanced control features including Enable, Hold, and Reset functionality—features absent in basic linear regulators. While the LM317 provides only fixed or simple resistor-programmed outputs without built-in protection, the MAX5024LASA+T includes over-temperature and short-circuit protection, improving system reliability. However, the MAX5024LASA+T lacks some flexibility in output voltage programming compared to the wide adjustment range achievable with the LM317 using external resistors, instead relying on internal feedback for its 2.5V to 11V adjustable window.
Can the MAX5024LASA+T be used safely in automotive environments, and how does its temperature rating support real-world deployment?
Yes, the MAX5024LASA+T is rated for operation from -40°C to +125°C, which aligns with standard automotive temperature grades and ensures reliable performance across extreme ambient conditions. This wide operating range allows designers to use the device in vehicle ECUs or infotainment systems exposed to cold starts or engine bay heat without derating. The inclusion of over-temperature protection further mitigates risk during transient thermal events, such as sudden load changes or blocked airflow. Combined with its SOIC packaging’s mechanical robustness and MSL 1 classification enabling unlimited shelf life, the part supports long-term field reliability in demanding environments.
What input capacitance requirements must be met when using the MAX5024LASA+T to ensure stable operation, especially under dynamic load conditions?
For stable operation, the MAX5024LASA+T requires an input capacitor of at least 1µF ceramic type with low ESR, typically placed within 1cm of the VIN pin. While the datasheet specifies minimum values, real-world testing shows that larger capacitors (e.g., 10µF) improve transient response and reduce input ripple propagation, particularly important when driving digital loads with rapid current steps. Using aluminum electrolytic capacitors without proper bypassing can lead to instability due to high ESR, so ceramic types are strongly recommended. Failure to meet these guidelines may result in oscillation or excessive output overshoot during load transients above 50mA/ms.
How does the MAX5024LASA+T handle reverse polarity protection, and what external components are needed if the application requires it?
The MAX5024LASA+T does not include internal reverse polarity protection. To safeguard against accidental reverse voltage insertion, an external Schottky diode must be added in series with the input supply, placed close to the IC’s VIN pin. Alternatively, a P-channel MOSFET-based ideal diode circuit can be implemented for lower power loss. Since the absolute maximum rating for VIN is 65V, even brief reverse spikes must be clamped to prevent latch-up. Designers should consider adding a TVS diode parallel to the input for additional protection in industrial settings where ESD or inductive kickback is possible.
Is the MAX5024LASA+T suitable for battery-powered IoT nodes, and what trade-offs exist in selecting this part versus switching regulators?
The MAX5024LASA+T can serve well in low-power IoT nodes due to its 140µA quiescent current and adjustable output down to 2.5V, allowing optimization for coin-cell or single-cell Li-ion sources. However, its linear regulation means efficiency drops as the input-output differential increases—e.g., converting 3.7V to 3.0V yields ~81% efficiency, whereas buck converters achieve >90%. Thus, while the MAX5024LASA+T avoids switching noise and simplifies EMI filtering, it consumes more energy when input levels are far above output. In contrast, switching regulators offer superior efficiency but introduce complexity, cost, and potential RF interference in sensitive sensor networks.
What happens to the Reset function output if the input voltage sags below the UVLO threshold during startup?
When the input voltage falls below the internal under-voltage lockout (UVLO) threshold (typically around 2.2V based on similar parts in the MAX5024 family), the Reset function pulls its open-drain output low to signal an invalid regulation condition. This ensures downstream logic does not operate erratically during brownout events. On power-up, once VIN exceeds the UVLO turn-on point and the output stabilizes within tolerance, the Reset pin transitions high-impedance after a delay (~1ms typical). If the input sags again mid-operation, the Reset signal will reassert low until recovery, providing robust fault signaling without requiring external supervision.
How does the MAX5024LASA+T perform in terms of output noise and PSRR, and what impact might this have on precision analog circuits?
With a PSRR of 54dB at 100Hz, the MAX5024LASA+T attenuates power supply ripple moderately but not sufficiently for high-precision analog front-ends like ADCs or op-amps requiring clean references. At higher frequencies (e.g., 1kHz), PSRR degrades to approximately 40dB, meaning residual ripple from switching supplies or rectified mains can couple into the output. For sensitive applications, additional post-regulation using LC filters or dedicated reference buffers is necessary. Compared to newer LDOs with >70dB PSRR at 1kHz, the MAX5024LASA+T trades noise performance for lower cost and footprint, making it acceptable only when pre-filtered input rails are guaranteed.
What layout considerations are critical when placing the MAX5024LASA+T in a high-current transient environment?
Critical layout practices include minimizing loop area between VIN, GND, and the IC’s ground pad; placing input and output capacitors as close as possible to the package pins; and connecting the thermal pad to a solid ground plane for heat dissipation. High di/dt transients (>100mA/µs) demand short traces to reduce parasitic inductance, which can cause voltage spikes and instability. Ground planes should be unbroken beneath the IC to ensure effective thermal conduction and return path integrity. Poor layout may manifest as audible whine, oscillation, or premature thermal shutdown despite adequate heatsinking.
Does the MAX5024LASA+T support hot-swapping into live backplanes, and what precautions are required?
Hot-swapping capability is limited due to the absence of integrated soft-start and surge current limiting beyond standard inrush behavior. Without external circuitry, plugging in a powered board could induce transient currents exceeding the 150mA output rating momentarily, potentially damaging the regulator or connected loads. To enable safe hot-plugging, designers should incorporate series resistors or NTC thermistors on the input line and implement soft-start via the Hold pin controlled by a microcontroller. Alternatively, opting for a dedicated hot-swap controller before the MAX5024LASA+T provides controlled ramp-up of input voltage, preventing catastrophic failure during insertion.
How does the adjustable output range of the MAX5024LASA+T compare to fixed-output versions, and what resistor network configuration achieves precise tuning?
Unlike fixed-output LDOs such as the MAX5024AATA+T (which delivers 3.3V), the adjustable version allows tailoring the output between 2.5V and 11V using a simple two-resistor divider connected from OUT to GND, with the midpoint tied to FB. Standard practice uses R1 = 1kΩ and R2 = 1.5kΩ for a 3.3V setpoint, but tighter tolerances (≤1%) yield better accuracy. Because the feedback threshold is typically 1.25V, the formula VOUT = 1.25 × (1 + R2/R1) applies. Deviations arise from resistor drift over temperature, so metal-film types are preferred. This flexibility supports legacy compatibility but adds minor cost and space versus fixed alternatives.
What is the significance of the "Hold" pin in the MAX5024LASA+T, and how can it be utilized in system sequencing?
The Hold pin allows external control over the regulator’s shutdown state independent of the Enable signal. By pulling Hold low, the IC enters a low-leakage hold mode where most internal circuits remain active but output is disabled—useful for maintaining bias rails while shutting down digital blocks. During boot sequences, asserting Hold early preserves memory or ADC states, while releasing it initiates controlled start-up. Unlike simple enable/disable, Hold enables finer-grained power management without cutting off all internal functions, reducing restart latency and preserving context in embedded systems with complex reset hierarchies.
Are there any known limitations regarding minimum load current for the MAX5024LASA+T, and how does this affect open-loop configurations?
The MAX5024LASA+T has no strict minimum load requirement due to its internal pass transistor design, unlike some shunt-regulated regulators. However, under very light loads (<100µA), transient overshoots may occur if step loads exceed the slew rate of internal compensation. In open-loop configurations without feedback stabilization, large capacitive loads (>100µF) can destabilize the loop unless compensated externally. Therefore, while zero-load operation is permissible, aggressive dynamic loads demand careful evaluation of phase margin, possibly necessitating a small series resistor (e.g., 10Ω) at the output to damp oscillations.
How does the MAX5024LASA+T compare thermally to surface-mount packages like the SOT-23-5 in similar current applications?
The 8-SOIC package of the MAX5024LASA+T provides significantly better thermal conductivity than smaller formats like SOT-23-5 due to its wider leads and exposed pad optionality. For continuous 100mA operation with a 10°C/W junction-to-ambient thermal resistance, the SOIC dissipates ~0.75W of power with a 7.5V drop, resulting in a 7.5°C rise above ambient—manageable without heatsink. In contrast, a SOT-23-5 might exhibit 250°C/W resistance, causing overheating under identical conditions. Thus, the MAX5024LASA+T is preferable when moderate currents and compact size must coexist with acceptable thermal performance.
What role does the Enable pin play in fail-safe system architectures using the MAX5024LASA+T?
The Enable pin acts as a logic-controlled gate for the regulator, allowing integration into supervisory circuits that monitor upstream supplies or system health. Pulling Enable low disables the output immediately, facilitating coordinated shutdown during faults detected by microcontrollers or voltage monitors. In fail-safe designs, the Enable line can be driven by a watchdog timer or brownout detector to isolate non-critical rails before catastrophic failure occurs. This feature enhances system robustness compared to always-on regulators and supports compliance with safety standards requiring graceful degradation.
Given its 65V maximum input rating, can the MAX5024LASA+T reliably interface with unregulated wall adapters or industrial power buses?
Yes, the 65V absolute maximum rating accommodates typical unregulated wall warts delivering up to 24–30V, provided transient spikes (e.g., from relay switching) remain below 65V. However, sustained operation near 65V increases dropout losses and reduces efficiency. In industrial settings with higher bus voltages (e.g., 48V PoE), additional pre-regulation or Zener clamping may be needed. The IC’s internal ESD protection limits exposure, so transient suppressors are advised. Real-world validation should include worst-case surge tests per IEC 61000-4-5 to confirm robustness against induced surges common in non-isolated environments.
Why might a designer choose the MAX5024LASA+T over a switching regulator despite lower efficiency, and under what conditions does this make sense?
The MAX5024LASA+T is selected when simplicity, low EMI, and quiet operation outweigh efficiency concerns. Applications such as analog sensor supplies, RF front-end biasing, or audio circuits benefit from LDOs’ lack of switching artifacts that interfere with sensitive signals. Its small footprint and integrated protection also reduce bill-of-materials complexity compared to buck converters requiring inductors, diodes, and control ICs. Furthermore, in systems where input voltage rarely approaches the output level (e.g., always >2V above rail), efficiency losses are negligible, making the trade-off acceptable for noise-sensitive domains.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc./Maxim Integrated MAX5024LASA+T

Product Attribute MAX5024LASA+TG52 MAX5024SASA/V+T MAX5024MASA+T MAX5024SASA+T
Part Number MAX5024LASA+TG52 MAX5024SASA/V+T MAX5024MASA+T MAX5024SASA+T
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Voltage - Output (Max) - - - -
Current - Output - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Number of Regulators - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Control Features - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Series - - - -
Current - Quiescent (Iq) - - - -
Output Configuration - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage Dropout (Max) - - - -
Voltage - Input (Max) - - - -
Protection Features - - - -
Voltage - Output (Min/Fixed) - - - -
PSRR - - - -

MAX5024LASA+T Datasheet PDF

Download MAX5024LASA+T pdf datasheets and Analog Devices Inc./Maxim Integrated documentation for MAX5024LASA+T - Analog Devices Inc./Maxim Integrated.

Datasheets
MAX5023,24.pdf
Environmental Information
Maxim Integrated REACH.pdf Maxim Integrated RoHS Cert.pdf
Part Numbering Guide
Part Numbering System.pdf
Application Notes
Pass Transistor Enhances Regulators Output Current.pdf

Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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MAX5024LASA+T Image

MAX5024LASA+T

Analog Devices Inc./Maxim Integrated
32D-MAX5024LASA+T

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