MAX17542GATB+ Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
Analog Devices MAX17542GATB+ is a synchronous step-down DC/DC converter with a 4.5 V to 42 V input range, 600 kHz fixed switching frequency, and current-mode PWM control in a compact 10-pin TDFN package. Output voltage is adjustable from 0.9 V to 38.64 V. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MAX17542GATB+ Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4.5 V to 42 V wide input range with adjustable output from 0.9 V to 38.64 V covers industrial 24 V and automotive 12 V rails in a single design
- 600 kHz fixed PWM switching frequency enables compact external inductors and capacitors, minimizing total solution footprint
- Current-mode control with internal compensation reduces design complexity and improves transient response for point-of-load converters
- 10-pin TDFN (3 mm x 2 mm) package with exposed pad provides excellent thermal dissipation for high-efficiency operation in thermally constrained boards
Applications
The MAX17542GATB+ is designed for industrial 24 V bus point-of-load regulators, automotive 12 V step-down rails, and communications equipment power stages that require a wide-input, high-efficiency synchronous buck converter. Its adjustable output from 0.9 V to 38.64 V makes it suitable for powering FPGAs, microprocessors, and analog front-ends from a single converter design across multiple voltage configurations. The 600 kHz switching frequency and current-mode control also make it a strong choice for battery-powered industrial handhelds and portable test instruments where efficiency and transient performance are critical.
Specifications
| Manufacturer Package Code | 10-LFCSP-3X2X0.75 |
| Date Of Intro | 2015-06-11 |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.9 TO 38.64V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 42V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 24V |
| JESD-30 Code | R-PDSO-N10 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.9A |
| Output Voltage-Max | 38.64V |
| Output Voltage-Min | 0.9V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 6.75mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 640kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the MAX17542GATB+ support, and how does it suit industrial 24 V systems?
The MAX17542GATB+ accepts input voltages from 4.5 V to 42 V, which comfortably encompasses the standard 24 V industrial bus including transient overvoltages up to 40 V that commonly occur in factory automation systems. The 42 V absolute maximum rating also provides margin for load-dump transients in 12 V automotive environments, making the converter a versatile choice across both industrial and automotive power designs.
How does the 600 kHz switching frequency of the MAX17542GATB+ influence external component selection?
Running at 600 kHz allows the use of smaller inductors and output capacitors compared to lower-frequency buck converters. For a 24 V-to-5 V conversion at 1 A, a typical inductor value of around 10 µH and ceramic output capacitors totaling 20 µF to 47 µF are sufficient, resulting in a compact PCB footprint while maintaining less than 50 mV output ripple under full-load conditions.
Can the MAX17542GATB+ generate sub-1 V outputs for FPGA core power rails?
Yes. The MAX17542GATB+ output voltage is adjustable down to 0.9 V via an external resistor divider, making it suitable for powering FPGA core rails at 0.9 V or 1.0 V from a 12 V or 24 V bus. Its current-mode PWM control provides fast transient response essential for FPGA core regulators, where sudden load steps of several amps occur when the FPGA changes operating modes.
What thermal advantages does the 10-pin TDFN package of the MAX17542GATB+ offer over a standard SOIC?
The 10-pin TDFN (3 mm x 2 mm) package includes an exposed thermal pad on its underside that conducts heat directly to the PCB copper, achieving a junction-to-board thermal resistance significantly lower than a standard SOIC package of comparable size. This allows the MAX17542GATB+ to deliver higher continuous output current without exceeding its maximum junction temperature of 125°C, particularly when paired with multiple PCB copper pours for heat spreading.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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