MAX77503AEWC+ Analog Devices Integrated Circuit (BGA) In Stock
The MAX77503AEWC+ is a 14V input, 1.5A high-efficiency synchronous buck converter with an ultra-low quiescent current of 9 µA, ideal for battery-powered applications. It delivers an adjustable output voltage from 1.55V to 13.86V using pulse-width modulation current-mode control in a compact 12-WLCSP package.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- MAX77503AEWC+ Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 9 µA quiescent current extends battery life in low-power and IoT designs
- Wide input voltage range of 3 V to 14 V with adjustable output from 1.55 V to 13.86 V
- Current-mode PWM control in a compact 12-WLCSP package for high power density layouts
Applications
The MAX77503AEWC+ is well suited for battery-powered IoT devices, wearables, and portable consumer electronics where minimizing standby current is critical. It can also be used in industrial sensor nodes and wireless communication modules that require a regulated DC output from a Li-Ion or multi-cell battery. Its wide input range and 1.5A output current capability make it adaptable to a broad range of single-rail power supply designs.
Specifications
| Manufacturer Package Code | 12-WLCSP-N/A |
| Date Of Intro | 2018-11-05 |
| YTEOL | 9 |
| Additional Feature | OUTPUT VOLTAGE FROM 1.55V TO 13.86V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 14V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PBGA-B12 |
| Number of Functions | 1 |
| Output Current-Max | 1.5A |
| Output Voltage-Max | 13.86V |
| Output Voltage-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1100kHz |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin/Silver/Copper/Nickel (Sn/Ag/Cu/Ni) |
| Terminal Form | BALL |
| Terminal Pitch | 0.4mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | BGA |
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 is the quiescent current of the MAX77503AEWC+ and why does it matter for battery life?
The MAX77503AEWC+ has a quiescent current of only 9 µA, which is critical for extending battery runtime in IoT sensors, wearables, and other battery-powered devices that spend most of their time in a low-power standby state. A lower IQ means less energy wasted when the load is light or off.
What input and output voltage ranges does the MAX77503AEWC+ support?
The MAX77503AEWC+ accepts an input voltage from 3 V to 14 V and provides an adjustable output voltage ranging from 1.55 V to 13.86 V, making it compatible with single-cell Li-Ion batteries as well as multi-cell packs up to 14 V in battery-powered and industrial applications.
Which package does the MAX77503AEWC+ use and how does it affect PCB design?
The MAX77503AEWC+ is housed in a 12-ball WLCSP package, which enables a very small PCB footprint ideal for space-constrained designs such as wearable devices and compact IoT modules. The BGA layout supports a 1.5A output current with minimal external components at up to 14 V input.
What control technique does the MAX77503AEWC+ use and what are its benefits?
The MAX77503AEWC+ uses current-mode pulse-width modulation (PWM) control, which provides fast transient response and inherent cycle-by-cycle current limiting. This technique supports stable regulation across output loads from light to 1.5A and input voltages from 3 V to 14 V.
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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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