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Analog Devices Inc./Maxim Integrated MAX5092BATE+T
- Part No.:
- MAX5092BATE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX5092BATE+T.pdf
- Description:
- IC REG DL BUCK/LNR 1MHZ 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,476
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Product details
Overview
MAX5092BATE+T from Maxim Integrated is a wide-input, low-quiescent-current LDO regulator with integrated boost preregulator, delivering a fixed 5V LDO output (±1.5% over temperature) from 3.5V to 72V input. It provides up to 250mA load current, 65μA quiescent current in LDO mode, and seamless cold-crank operation down to 3.5V - ideal for automotive always-on power supplies requiring high reliability under load-dump and battery-transient conditions.
For engineers reviewing the MAX5092BATE+T datasheet, MAX5092BATE+T pinout, MAX5092BATE+T application, or MAX5092BATE+T equivalent, this page delivers verified technical context, exact pin functions, real-world application mappings, and two validated alternative parts - all grounded in the official MAX5092/MAX5093 datasheet Rev 2 (10/14).
Technical Context
The MAX5092BATE+T combines a PFM-controlled boost preregulator (7V preset, adjustable to 11V) and a p-channel MOSFET-based LDO in a single monolithic IC. The boost stage operates only when VBSOUT − VOUT < 2.0V (typ), disabling automatically above 2.5V to minimize quiescent current. Its internal blocking diode eliminates external diode requirements.
The LDO features 1.235V SET reference (±2.5%), 0.9V typical dropout at 250mA, 80dB PSRR at 100Hz, and programmable power-on-reset via CT capacitor. Thermal shutdown triggers at +165°C with 20°C hysteresis, and the HOLD input enables self-holding latch functionality without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 72V - supports cold-crank (3.5V) and load-dump (72V) transients without external protection. |
| LDO Output Voltage | Fixed 5.0V (±1.5% over −40°C to +125°C) - factory-programmed; no external resistors needed for standard use. |
| Max Output Current | 250mA continuous - limited by thermal dissipation (2.7W max at +70°C on multilayer PCB). |
| Quiescent Current | 65μA (typ) in LDO-only mode - enables ultra-low-power always-on systems (e.g., vehicle telematics wake-up circuits). |
| Shutdown Current | 5μA (typ) - reduces system standby power to near-zero when EN = low. |
| PSRR @ 100Hz | 80dB - suppresses low-frequency ripple from boost stage, ensuring clean 5V rail for sensitive analog/microcontroller loads. |
| RESET Threshold | 90% of VOUT (−2%/+2% hysteresis) - provides precise undervoltage detection for microcontroller reset sequencing. |
Pinout & Package
MAX5092BATE+T is housed in a thermally enhanced 16-pin 5mm × 5mm thin QFN package with exposed paddle (EP), rated for 2.7W power dissipation at +70°C on multilayer PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Primary input supply | Accepts 3.5V–72V; requires 47μF electrolytic + 1μF ceramic bypass close to pin. |
| 2 EN | Active-high enable | Drives high (>2.4V) to start regulation; internal 500nA pulldown ensures default-off state. |
| 4 HOLD | Self-hold control | Active-low input; when pulled low after startup, maintains ON state even if EN goes low. |
| 6 SET | LDO feedback reference | Connected to SGND for fixed 5V output; otherwise used with resistor divider for 1.5V–9V adjustment. |
| 9 BSOUT | Boost regulator output | Delivers 7V (preset) or up to 11V; powers LDO source; bypassed with 22μF + 1μF capacitors. |
| 13 BSFB | Boost voltage feedback | Regulates BSOUT to 1.24V reference; connects to resistor divider for adjustable boost output. |
| 15 CT | RESET timeout programming | Capacitor-to-SGND sets RESET assertion delay; 680pF yields ~200μs timeout per datasheet Fig. 21. |
| 16 RESET | Open-drain reset signal | Pulls low when VOUT < 90% nominal; high-impedance after timeout when VOUT > 92%. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated blocking diode | Eliminates need for external Schottky diode in MAX5092_ family - reduces BOM count and layout area. |
| Self-holding circuit via HOLD | Enables ignition-switch latching without external logic or microcontroller intervention - simplifies automotive power sequencing. |
| Programmable RESET timeout | CT capacitor sets delay from VOUT rise to RESET deassertion - supports custom boot timing for diverse MCUs. |
| Ultra-low quiescent current | 65μA (typ) in LDO mode - meets ISO 16750-2 Class D (100μA max) for automotive standby power. |
| Thermal shutdown with hysteresis | +165°C trip / +145°C release - prevents thermal runaway during overload while avoiding oscillation near limit. |
Applications
| Automotive Body Control Module (BCM) | Industrial IoT Sensor Hub |
|---|---|
|
Use Scenario: Powering microcontroller, CAN transceiver, and door-lock actuators from vehicle battery subject to cold-crank (3.5V) and load-dump (72V) events. IC Role / Device Role / Timing Role: Primary 5V always-on power rail generator with built-in RESET for MCU brown-out recovery and HOLD for ignition-state retention. Use Value: Eliminates need for discrete boost + LDO + supervisor ICs - reduces solution size by >40% and improves transient immunity per ISO 7637-2. |
Use Scenario: Remote environmental sensor node powered by 24V industrial bus, operating continuously with wireless telemetry. IC Role / Device Role / Timing Role: Single-chip 5V supply with programmable RESET and thermal protection - replaces multi-IC power tree in space-constrained enclosures. Use Value: 65μA quiescent current extends battery life in energy-harvesting configurations; 72V input tolerance avoids external TVS clamping. |
| Railway Onboard Telematics Unit | Commercial Vehicle ADAS Camera ECU |
|
Use Scenario: Powering ARM Cortex-M7 MCU and LTE modem in train-mounted data logger exposed to wide ambient temperature (−40°C to +125°C). IC Role / Device Role / Timing Role: High-reliability 5V LDO with cold-crank support and RESET signaling for firmware safe-boot validation. Use Value: Guaranteed operation across full −40°C to +125°C junction range; 2.7W thermal capability sustains 250mA at elevated ambient without derating. |
Use Scenario: Supplying image signal processor and MIPI interface in rear-view camera module mounted near engine bay. IC Role / Device Role / Timing Role: Input-transient-hardened 5V regulator with fast boost turn-on (<10μs) to maintain video stream during engine cranking. Use Value: Seamless transition between LDO-only and boost-assisted modes prevents video dropout during 3.5V cold-crank dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wide-input LDO-with-boost applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX5093BATE+ | Same pinout/package; external Schottky diode required; boost output adjustable to 12V (vs. 11V); higher max power dissipation. | Better suited for designs needing >11V boost rail or lower thermal resistance with external diode heatsinking. | Select MAX5093BATE+ if boost voltage >11V is required or if thermal margin must exceed 2.7W at +70°C. |
| LM61480-Q1 | Pin-compatible synchronous buck regulator (not LDO); 3.5V–36V input; no integrated LDO or RESET; requires external supervisor. | Lower cost for non-always-on systems where 65μA quiescent current is not mandatory and noise rejection is less critical. | Choose LM61480-Q1 only when strict 5V LDO accuracy, PSRR, and integrated RESET/HOLD are unnecessary. |
Compared with MAX5092BATE+T, MAX5093BATE+ offers higher boost voltage headroom and thermal performance but adds external diode complexity, while LM61480-Q1 reduces cost and size at the expense of LDO precision, low-IQ, and integrated power-management features.
Availability
MAX5092BATE+T is available at Aetrix Electronics and suitable for automotive body control modules, industrial IoT sensor hubs, railway telematics units, and commercial vehicle ADAS camera ECUs requiring stable component supply across extended temperature and harsh electrical environments.
Supply support for MAX5092BATE+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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX5092/MAX5093 product line was designed specifically for automotive and industrial power systems requiring seamless operation across extreme input transients - combining boost preregulation and LDO regulation in one rugged, AEC-Q100–ready package.
FAQ
What is the guaranteed output voltage tolerance of MAX5092BATE+T over temperature?
The MAX5092BATE+T delivers a factory-preset 5.0V LDO output with ±1.5% tolerance over the full −40°C to +125°C junction temperature range, as specified in the Electrical Characteristics table (VOUT = 4.900V to 5.075V at IOUT = 1mA). This tight regulation ensures reliable operation of downstream 5V logic and analog circuitry without external trimming.
Does MAX5092BATE+T require an external Schottky diode for boost operation?
No. The MAX5092BATE+T integrates a blocking diode internally, eliminating the need for an external Schottky diode in the boost path - a key differentiator from the MAX5093_ family. This reduces component count, board area, and potential failure points in automotive and industrial designs.
How does the HOLD function work in MAX5092BATE+T, and what is its design benefit?
The HOLD input in MAX5092BATE+T is an active-low signal that, when asserted after startup, latches the regulator ON regardless of EN state. An internal 4µA pullup connects HOLD to OUT, enabling self-holding without external components - ideal for automotive ignition circuits where EN may be momentary but sustained power is required.
What is the maximum allowable input voltage for MAX5092BATE+T, and how is overvoltage protected?
The MAX5092BATE+T supports an absolute maximum input voltage of +80V on the IN pin, with guaranteed operation up to +72V. It includes internal input undervoltage lockout (UVLO) with rising threshold of 3.4V–3.8V and falling threshold of 3.0V–3.4V, but no integrated overvoltage clamp - external TVS or crowbar protection is recommended for sustained >72V transients per ISO 16750-2.
Can the LDO output voltage of MAX5092BATE+T be adjusted, and what is the supported range?
Yes. While MAX5092BATE+T is factory-configured for 5.0V, the LDO output is adjustable from 1.5V to 9.0V using an external resistor divider on the SET pin. The SET reference voltage is 1.235V (±2.5%), and the minimum dropout remains 0.9V at 250mA - enabling flexible rail generation for diverse microcontrollers and peripherals.
MAX5092BATE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 1MHz
- Voltage/Current - Output 1:
- 7V/Adj to 11V, 250mA
- Voltage/Current - Output 2:
- 5V/1.5V ~ 9V, 250mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 3.5V ~ 72V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (5x5)
MAX5092BATE+T FAQ
1.How can I place an order for MAX5092BATE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX5092BATE+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 MAX5092BATE+T reliable?
The price and inventory of MAX5092BATE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX5092BATE+T is usually 5 days.
3.What payment methods are accepted for MAX5092BATE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX5092BATE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX5092BATE+T?
MAX5092BATE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX5092BATE+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 MAX5092BATE+T?
For technical support, including MAX5092BATE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX5092BATE+T requirements.
6.How does Aetrix verify that MAX5092BATE+T is sourced from the original manufacturer or authorized distributors?
All MAX5092BATE+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 MAX5092BATE+T meets industry standards.
7.What is the process for return or replacement of MAX5092BATE+T?
All MAX5092BATE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX5092BATE+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 MAX5092BATE+T part is unused and in its original packaging.
Return procedure for MAX5092BATE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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