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Analog Devices Inc./Maxim Integrated MAX5024SASA/V+
- Part No.:
- MAX5024SASA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MAX5024SASA/V+.pdf
- Description:
- IC REG LIN POS ADJ 150MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,638
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Product details
Overview
MAX5024SASA/V+ from Maxim Integrated is a high-voltage linear regulator with integrated microprocessor reset circuit, fixed +3.3V output, -60V reverse-battery protection, 60μA no-load quiescent current, and automotive-grade operation from -40°C to +125°C. It delivers up to 150mA output current and features HOLD/EN control for self-holding functionality in ignition-switched automotive power systems.
For engineers reviewing the MAX5024SASA/V+ datasheet, MAX5024SASA/V+ pinout, MAX5024SASA/V+ application, or MAX5024SASA/V+ equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and electrical specifications, and real-world automotive and industrial use cases - all derived from Maxim's official datasheet Rev 8 (3/16).
Technical Context
The MAX5024SASA/V+ implements a BiCMOS-based linear regulation architecture with internal bandgap reference and precision feedback comparator. Its SET input is internally connected to ground to configure the fixed +3.3V output mode, and its RESET circuit asserts when VOUT falls below 2.805V (–7.5% threshold) with a guaranteed 140–260ms timeout period.
Thermal shutdown activates at +150°C junction temperature with 20°C hysteresis, and reverse-battery protection sustains –60V at IN without damage. The device uses an exposed-pad 8-pin SO-EP package with θJA = 41°C/W and θJC = 2°C/W, enabling 1.5W dissipation at TA = +70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +6.5V to +65V - supports wide automotive battery transients including load dump. |
| Output Voltage | +3.3V (fixed) - trimmed to ±3.6% over temperature; enables direct powering of 3.3V MCUs and sensors. |
| Max Output Current | 150mA - guaranteed continuous delivery under thermal limits; sufficient for small ECUs and alarm controllers. |
| Quiescent Current | 58–140μA - ensures low standby power in always-on vehicle modules. |
| Reverse-Battery Protection | –60V at IN - eliminates need for external series diode in automotive reverse-polarity fault scenarios. |
| Reset Threshold | 2.805V to 2.970V (–7.5%) - precise brownout detection for 3.3V logic rails with 5μs response delay. |
| Shutdown Current | 6–16μA - enables ultra-low-power sleep states when EN is low and HOLD is released. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood and chassis-mounted automotive applications. |
Pinout & Package
MAX5024SASA/V+ is housed in an 8-pin surface-mount SO-EP (Small Outline–Exposed Pad) package. The exposed pad must be soldered to PCB ground plane for thermal performance and EMI reduction. Package outline: S8E+14 (JEDEC MO-153 variant), footprint land pattern 90-0151.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator Input | Accepts +6.5V to +65V; requires 10μF bypass to GND; withstands –60V reverse voltage. |
| 2 EN | Enable Input (active-high) | Pull ≥2.4V to enable; internal 5MΩ pull-down ensures default-off state on power-up. |
| 3 GND | Ground / Thermal Heatsink | Primary return path; exposed pad must connect to large copper area for 1.5W dissipation. |
| 4 RESET | Active-Low Open-Drain Reset Output | Asserts low when VOUT < 2.805V; sinks up to 3.2mA; requires external pull-up for µP interface. |
| 5 HOLD | Hold Input (active-low) | When pulled low after EN activation, maintains regulator ON even if EN goes low - enables self-holding ignition circuits. |
| 6 N.C. | No Connection | Not internally bonded; leave unconnected per datasheet. |
| 7 SET | Feedback Reference Input | Internally grounded in MAX5024S variant to select +3.3V fixed output; not used for adjustable mode. |
| 8 OUT | Regulator Output | +3.3V output; requires ≥15μF low-ESR capacitor (X7R/X5R or tantalum) for stability up to 150mA. |
Key Features
| Feature | Design Value |
|---|---|
| Self-Holding Control Logic | HOLD input allows latch-up behavior without external components - critical for automotive ignition-sense power sequencing. |
| Automotive-Grade Thermal Robustness | Thermal shutdown at +150°C with 20°C hysteresis prevents latch-up during sustained overload or high ambient conditions. |
| Integrated μP Reset Supervisor | Single-chip solution replaces discrete reset IC + LDO; eliminates timing mismatches and board space for separate supervisor. |
| Reverse-Battery Fault Immunity | Withstands –60V at IN indefinitely - removes need for series Schottky diode and associated 0.3V dropout penalty. |
| Low-IQ Operation | 60μA typical no-load current enables >1-year battery life in always-on security sensors powered from 12V vehicle battery. |
| SO-EP Thermal Performance | θJC = 2°C/W enables efficient heat transfer from die to PCB ground plane - essential for compact under-dash modules. |
Applications
| Automotive Body Control Module (BCM) | Industrial Fire Alarm Sensor Node |
|---|---|
Use Scenario: Powers 3.3V microcontroller, CAN transceiver, and door-lock actuator driver in vehicle BCM exposed to cold-crank (6.5V) and load-dump (65V) events. IC Role / Device Role / Timing Role: Primary 3.3V power rail regulator with integrated reset supervision and reverse-polarity protection. Use Value: Eliminates external reset IC and reverse-protection diode, reducing BOM count by 2 components while maintaining AEC-Q100-compliant operation. |
Use Scenario: Supplies stable 3.3V to smoke detector MCU and analog sensor front-end in battery-backed fire alarm panel operating continuously at +85°C ambient. IC Role / Device Role / Timing Role: High-reliability linear regulator with brownout detection and thermal shutdown for life-safety equipment. Use Value: Guaranteed 150mA output at +125°C junction and 2.805V reset threshold ensure fail-safe shutdown before sensor data corruption occurs. |
| Home Security Panel Power Management | Telecom Remote Terminal Unit (RTU) |
Use Scenario: Provides always-on 3.3V rail for motion sensor hub with cellular backup, surviving 12V battery disconnect and 24V AC adapter switchover. IC Role / Device Role / Timing Role: Main system regulator with HOLD-enabled latching to maintain power during brief input interruptions. Use Value: Self-holding function sustains regulated output for >100ms during input dips - prevents false alarm resets during power transitions. |
Use Scenario: Powers 3.3V FPGA configuration circuitry and RS-485 transceivers in outdoor telecom cabinet exposed to –40°C winter and +70°C summer extremes. IC Role / Device Role / Timing Role: High-input-voltage LDO with extended temperature range and low ground current for remote infrastructure. Use Value: 60μA quiescent current minimizes battery drain during grid outage; –40°C to +125°C rating covers full industrial ambient envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage linear regulator with reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX5024MASA/V+ | +5V fixed output; reset threshold 4.25V–4.50V (–7.5%); identical pinout and HOLD/EN logic. | Suitable where system requires 5V I/O rails instead of 3.3V; not drop-in for 3.3V logic interfaces. | Select MAX5024MASA/V+ only when downstream logic is 5V-tolerant and reset threshold alignment with 5V rail is required. |
| TPS7B7702QPWPRQ1 | 40V max input; 150mA output; integrated watchdog (not reset-only); different pinout (16-pin HTSSOP); no HOLD function. | Requires PCB redesign; adds watchdog capability but lacks self-holding feature for ignition control. | Choose only if watchdog timer is mandatory and layout revision is acceptable; not a functional substitute for HOLD-based latching. |
Compared with MAX5024MASA/V+, the MAX5024SASA/V+ provides tighter reset threshold alignment for 3.3V systems and lower dropout headroom; compared with TPS7B7702QPWPRQ1, it offers pin-compatible HOLD functionality and superior reverse-battery immunity but lacks watchdog capability.
Availability
MAX5024SASA/V+ is available at Aetrix Electronics and suitable for automotive body control modules, industrial fire alarm sensor nodes, home security panels, and telecom remote terminal units requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX5024SASA/V+ 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 precision analog, mixed-signal, and power-management ICs for automotive, industrial, and communications markets.
The MAX5024 series targets high-reliability automotive power systems requiring integrated reset supervision, reverse-battery protection, and self-holding control - eliminating discrete support components in harsh-environment ECUs.
FAQ
What is the exact reset threshold voltage for MAX5024SASA/V+?
The MAX5024SASA/V+ has a guaranteed reset threshold of 2.805V to 2.970V, corresponding to –7.5% of its nominal +3.3V output. This threshold is factory-trimmed and specified over the full –40°C to +125°C temperature range. The MAX5024SASA/V+ asserts RESET low when VOUT falls below this window and holds low for 140–260ms after recovery.
Does MAX5024SASA/V+ support adjustable output voltage?
No, the MAX5024SASA/V+ is configured for fixed +3.3V output only. Its SET pin is internally connected to ground per the "S" suffix designation in the Selector Guide. To achieve adjustable output (2.5V–11V), the MAX5024TASA/V+ or MAX5024SASA/V+ with external resistor divider is required - but the MAX5024SASA/V+ variant does not support that mode.
How does the HOLD function work in MAX5024SASA/V+?
In the MAX5024SASA/V+, pulling HOLD low after enabling EN forces the regulator to remain ON even if EN is subsequently driven low. Releasing HOLD (by disconnecting or allowing internal 4µA pullup to OUT) shuts down the regulator. This self-holding behavior enables ignition-sense power sequencing without external latching circuitry.
Is MAX5024SASA/V+ qualified for automotive applications?
Yes, the "/V" suffix in MAX5024SASA/V+ denotes AEC-Q100 qualification. It operates across –40°C to +125°C, includes –60V reverse-battery protection, and meets automotive transient requirements including ISO 7637-2 pulse 5a (load dump). The "+" indicates RoHS-compliant, lead-free packaging.
What thermal derating applies to MAX5024SASA/V+ at +105°C ambient?
At TA = +105°C, the MAX5024SASA/V+'s maximum allowable power dissipation is 1.538W – (0.01923W/°C × (105°C – 70°C)) = 0.865W. With VIN = +14V and VOUT = +3.3V, this supports up to ~800mA theoretical, but the device is current-limited to 150mA - so thermal derating does not constrain output current in this condition.
MAX5024SASA/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 65V
- Voltage - Output (Min/Fixed):
- 2.5V (3.3V)
- Voltage - Output (Max):
- 11V
- Voltage Dropout (Max):
- 1.5V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 140 µA
- Current - Supply (Max):
- -
- PSRR:
- 54dB (100Hz)
- Control Features:
- Enable, Hold, Reset
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
MAX5024SASA/V+ FAQ
1.How can I place an order for MAX5024SASA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX5024SASA/V+ 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 MAX5024SASA/V+ reliable?
The price and inventory of MAX5024SASA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX5024SASA/V+ is usually 5 days.
3.What payment methods are accepted for MAX5024SASA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX5024SASA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX5024SASA/V+?
MAX5024SASA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX5024SASA/V+ 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 MAX5024SASA/V+?
For technical support, including MAX5024SASA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX5024SASA/V+ requirements.
6.How does Aetrix verify that MAX5024SASA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX5024SASA/V+ 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 MAX5024SASA/V+ meets industry standards.
7.What is the process for return or replacement of MAX5024SASA/V+?
All MAX5024SASA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX5024SASA/V+, 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 MAX5024SASA/V+ part is unused and in its original packaging.
Return procedure for MAX5024SASA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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