MAX1556AETB+ Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
The MAX1556AETB+ is a current-mode PWM step-down DC-DC converter from Analog Devices with an input range of 2.6 V to 5.5 V and adjustable output from 0.75 V to 5.5 V or fixed 2.5 V and 3.3 V operation. It is housed in a compact 10-pin 3x3 mm LFCSP package for space-constrained portable and battery-powered applications.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MAX1556AETB+ 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
- Current-mode PWM step-down converter with 2.6 V to 5.5 V input range
- Adjustable output from 0.75 V to 5.5 V or fixed 2.5 V and 3.3 V modes
- Compact 10-pin LFCSP 3x3x0.75 mm package for ultra-small designs
- Current-mode control for fast transient response and inherent current limiting
- Low minimum input voltage of 2.6 V enabling single-cell Li-ion battery operation
- 10-year YTEOL lifecycle status for reliable long-term sourcing
Applications
The MAX1556AETB+ is ideal for battery-powered portable devices, wearables, and IoT nodes where a highly compact step-down regulator converting single-cell Li-ion voltage to 2.5 V or 3.3 V rails is needed. Its adjustable output mode also supports custom supply rails in handheld instruments, DSP power supplies, and low-voltage microcontroller systems.
Specifications
| Manufacturer Package Code | 10-LFCSP-3X3X0.75 |
| Date Of Intro | 2004-07-30 |
| YTEOL | 10 |
| Additional Feature | ALSO OPER IN O/P VG 2.5V AND 3.3V; ALSO OPER IN ADJ MODE FROM 0.75 TO 5.5 V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.6V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | S-PDSO-N10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 2.25A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.75V |
| Output Voltage-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC10,.12,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1100kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| 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
Can MAX1556AETB+ operate directly from a single-cell Li-ion battery, and what output voltages does it support?
Yes. MAX1556AETB+ accepts input from 2.6 V to 5.5 V, covering the full single-cell Li-ion discharge range of about 3.0 V to 4.2 V, and provides fixed 2.5 V or 3.3 V outputs, as well as an adjustable mode spanning 0.75 V to 5.5 V for flexible rail generation.
How does the 3x3 mm LFCSP package of MAX1556AETB+ benefit space-constrained wearable and IoT PCB designs?
The 10-pin LFCSP measures only 3x3x0.75 mm, providing one of the smallest footprints available for a current-mode PWM step-down converter, which is critical in wearable and IoT modules where total PCB area is often below 20 square millimeters for the entire power section.
What sourcing outlook does MAX1556AETB+ carry for a product program expected to run 5 to 10 years?
MAX1556AETB+ carries a YTEOL of 10 years, indicating continued active production through at least the mid-2030s under normal lifecycle policy. This gives procurement teams confidence to commit to multi-year supply agreements and qualify the part for long-lifecycle consumer and industrial product platforms.
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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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