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Analog Devices Inc./Maxim Integrated MAX1792EUA15-TG069
- Part No.:
- MAX1792EUA15-TG069
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX1792EUA15-TG069.pdf
- Description:
- IC REG LINEAR LDO
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX1792EUA15-TG069 from Maxim Integrated is a 500mA low-dropout linear regulator with preset 1.5V output, ±1% accuracy over temperature, 130mV dropout at full load, and integrated active-low open-drain reset with 4ms timeout. It employs an internal PMOS pass transistor and operates from +2.5V to +5.5V input, targeting power rail regulation in space-constrained portable systems.
For engineers reviewing the MAX1792EUA15-TG069 datasheet, MAX1792EUA15-TG069 pinout, MAX1792EUA15-TG069 application, or MAX1792EUA15-TG069 equivalent, key selection criteria include guaranteed 500mA output under 130mV dropout, 0.1µA shutdown current, thermal shutdown at +170°C, reset threshold at 93% of nominal VOUT, and compatibility with 1.3W Power-µMAX layout.
Technical Context
The MAX1792EUA15-TG069 uses a P-channel MOSFET pass device with 0.25Ω RDS(ON), enabling low quiescent current (80µA typical) independent of load and eliminating base-drive losses common in PNP-based regulators. Its Dual Mode™ architecture selects between factory-trimmed 1.5V output (SET grounded) and adjustable mode via external resistor divider.
Regulation relies on a 1.25V internal reference compared against feedback from either internal resistive divider (preset mode) or SET pin voltage. The error amplifier drives the PMOS gate to maintain output stability, while dedicated blocks provide 0.8A short-circuit current limit, thermal shutdown with 20°C hysteresis, and open-drain RST output referenced to 93% of nominal VOUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Preset 1.5V ±1% (0°C to +85°C), ensuring stable core or I/O rail for low-voltage microcontrollers and sensors. |
| Max Output Current | 500mA RMS guaranteed, supporting moderate-power subsystems like USB peripherals or RF front-ends without derating. |
| Dropout Voltage | 130mV at 500mA, enabling operation down to VIN = 1.63V - critical for extending battery life in single-cell Li-ion or Li-poly systems. |
| Ground Current | 80µA typical at light load, rising to 110µA at 500mA, minimizing standby power loss in always-on portable devices. |
| Shutdown Current | 0.1µA maximum, allowing deep-sleep modes in battery-backed real-time clocks or sensor nodes. |
| Reset Threshold | 93% of nominal VOUT (1.395V), with 4ms release delay, providing reliable power-on-reset signaling for microcontrollers. |
| Thermal Shutdown | Activates at +170°C with 20°C hysteresis, enabling safe pulsed operation during transient overload without latch-off. |
Pinout & Package
The MAX1792EUA15-TG069 is housed in an 8-pin Power-µMAX package (U8E+2 outline) with exposed thermal pad (EP) on underside, rated for 1.3W continuous dissipation at +70°C ambient. Soldering EP and GND pins to a large PCB ground plane is mandatory for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 - IN | Input supply connection | Dual pins reduce trace resistance; requires 1µF ceramic bypass to GND close to package for stability and noise suppression. |
| 3 - RST | Open-drain active-low reset output | Pulls low when VOUT < 93% of 1.5V; needs external 100kΩ pullup to OUT for logic-level POR signal to µC. |
| 4 - SHDN | Active-low shutdown control | Drives regulator into 0.1µA sleep state; tolerates up to +6V regardless of VIN/VOUT; connect to IN for normal operation. |
| 5 - GND | Power and signal ground | Functions as primary thermal path; must be soldered to ground plane with multiple vias to manage 1.3W dissipation. |
| 6 - SET | Voltage-setting input | Grounded for 1.5V preset mode; connects to external resistor divider for adjustable outputs (1.25V–5.0V). |
| 7, 8 - OUT | Regulated output | Dual pins lower output impedance; requires 3.3µF low-ESR ceramic capacitor to GND for stability and transient response. |
| EP - Exposed Pad | Thermal interface | Not electrically connected; must be soldered to PCB ground plane to achieve θJA ≤ 100°C/W and prevent thermal shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Preset 1.5V output | Factory-trimmed ±1% accuracy across -40°C to +85°C eliminates external resistor network and calibration overhead. |
| Low 130mV dropout | Enables regulation from 1.63V input, maximizing usable capacity of 2.0V–3.6V battery cells in handheld medical or IoT devices. |
| 0.1µA shutdown current | Extends shelf life and battery runtime in storage or maintenance modes for portable instrumentation and wearables. |
| Integrated reset with 4ms delay | Provides deterministic power-on-reset timing without external RC networks, simplifying BOM and layout for µC-based systems. |
| Thermal protection with hysteresis | Prevents permanent damage during sustained overload while allowing recovery without manual reset, improving field reliability. |
Applications
| USB Hubs | Notebook Computers |
|---|---|
Use Scenario: Providing clean 1.5V supply to USB 3.0 PHY transceivers and hub controller logic rails. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 1.5V at up to 500mA with low noise and fast transient response. Use Value: Maintains USB compliance by limiting output ripple to <20mV during 5mA→500mA load steps and suppressing PSRR >40dB at 100kHz. |
Use Scenario: Powering DDR memory termination (VTT) or low-voltage I/O buffers in compact notebook motherboard designs. IC Role / Device Role / Timing Role: Secondary LDO generating precise 1.5V rail from main 3.3V or 5V system bus. Use Value: Guarantees ±1% output accuracy across temperature, preventing signal integrity issues in high-speed memory interfaces. |
| Cellular Telephones | Base Stations |
Use Scenario: Supplying 1.5V to RF power amplifier bias circuitry and analog front-end components in LTE handsets. IC Role / Device Role / Timing Role: Low-noise local regulator decoupling sensitive RF sections from noisy digital supplies. Use Value: Delivers 115µVRMS output noise (10Hz–1MHz) and >40dB PSRR at 1MHz, preserving EVM and ACLR performance. |
Use Scenario: Generating 1.5V auxiliary bias for small-cell remote radio head (RRH) control logic and monitoring circuits. IC Role / Device Role / Timing Role: High-reliability LDO operating continuously in thermally constrained outdoor enclosures. Use Value: Thermal shutdown at +170°C with 20°C hysteresis enables fault-tolerant operation without system interruption in unventilated housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS79515DRBR | Fixed 1.5V output, 500mA, 150mV dropout, 175µA IQ, no RST output, 5-pin WSON package. | Lacks integrated reset and thermal hysteresis; requires external POR circuit and heatsinking for same power density. | Select when reset functionality is handled elsewhere and board area favors 5-pin WSON over 8-pin µMAX. |
| MCP1825-1502E/DB | Fixed 1.5V output, 500mA, 230mV dropout, 95µA IQ, no RST, 5-pin SOT-23 package. | Higher dropout limits usable input range; no reset or thermal hysteresis; smaller package reduces thermal margin. | Select for cost-sensitive, non-thermal-critical applications where 230mV dropout is acceptable and reset is omitted. |
Compared with TPS79515DRBR and MCP1825-1502E/DB, the MAX1792EUA15-TG069 uniquely integrates reset with programmable delay and thermal hysteresis in a thermally optimized 8-pin µMAX, enabling simpler, more robust power sequencing in space- and reliability-constrained portable systems.
Availability
MAX1792EUA15-TG069 is available at Aetrix Electronics and suitable for notebook computers, cellular telephones, and USB hubs requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX1792EUA15-TG069 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 demanding industrial, automotive, and communications applications.
The MAX1792 belongs to Maxim's ultra-low-quiescent-current LDO family, engineered specifically for battery-powered portable equipment where extended runtime, small footprint, and integrated supervision functions are essential.
FAQ
What is the guaranteed output voltage accuracy of the MAX1792EUA15-TG069 over temperature?
The MAX1792EUA15-TG069 delivers ±1% output voltage accuracy over the full operating temperature range of -40°C to +85°C when loaded from 1mA to 500mA. This specification is verified across process, voltage, and temperature corners and applies specifically to the 1.5V preset variant, ensuring consistent performance in portable electronics subject to ambient thermal cycling.
Does the MAX1792EUA15-TG069 require external components for basic operation?
Yes - the MAX1792EUA15-TG069 requires a 1µF ceramic capacitor between IN and GND, and a 3.3µF low-ESR ceramic capacitor between OUT and GND for stable operation. Additionally, a 100kΩ pullup resistor from RST to OUT is needed to generate a valid logic-high reset signal; SHDN must be tied to IN for normal operation unless shutdown control is required.
How does the reset function behave during shutdown of the MAX1792EUA15-TG069?
When SHDN is pulled low, the MAX1792EUA15-TG069 enters shutdown mode and forces RST low regardless of the output voltage level. This behavior ensures a known reset state during power-down sequences. RST remains asserted low until SHDN is returned high and VOUT rises above 93% of 1.5V, followed by the 4ms release delay before RST goes high-impedance.
What thermal design considerations apply to the MAX1792EUA15-TG069 package?
The MAX1792EUA15-TG069 uses a Power-µMAX package with an exposed thermal pad (EP) that must be soldered to a large PCB ground plane using multiple thermal vias. GND pin 5 also serves as a thermal conduction path. Failure to implement both EP and GND thermal connections will exceed the 1.3W power dissipation limit and trigger thermal shutdown at junction temperatures above +170°C.
Can the MAX1792EUA15-TG069 be used in adjustable-output configurations?
No - the MAX1792EUA15-TG069 is factory-trimmed for fixed 1.5V output only. While the MAX1792 family supports adjustable mode via the SET pin, this specific variant (suffix "15") configures the internal feedback divider for 1.5V and does not allow external adjustment. For adjustable operation, select MAX1792EUAADJ+ or MAX1792EUA33+ with appropriate external resistors.
MAX1792EUA15-TG069 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.25V (1.5V)
- Voltage - Output (Max):
- 5V
- Voltage Dropout (Max):
- -
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 250 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Reset
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX-EP|8-uSOP-EP
MAX1792EUA15-TG069 FAQ
1.How can I place an order for MAX1792EUA15-TG069 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1792EUA15-TG069 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 MAX1792EUA15-TG069 reliable?
The price and inventory of MAX1792EUA15-TG069 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1792EUA15-TG069 is usually 5 days.
3.What payment methods are accepted for MAX1792EUA15-TG069?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1792EUA15-TG069 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1792EUA15-TG069?
MAX1792EUA15-TG069 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1792EUA15-TG069 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 MAX1792EUA15-TG069?
For technical support, including MAX1792EUA15-TG069 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1792EUA15-TG069 requirements.
6.How does Aetrix verify that MAX1792EUA15-TG069 is sourced from the original manufacturer or authorized distributors?
All MAX1792EUA15-TG069 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 MAX1792EUA15-TG069 meets industry standards.
7.What is the process for return or replacement of MAX1792EUA15-TG069?
All MAX1792EUA15-TG069 units undergo pre-shipment inspection (PSI). If there is an issue with MAX1792EUA15-TG069, 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 MAX1792EUA15-TG069 part is unused and in its original packaging.
Return procedure for MAX1792EUA15-TG069:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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