MAX8855ETJ+T Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The MAX8855ETJ+T is a dual-channel, 5 A, 2 MHz synchronous step-down (buck) regulator from Analog Devices operating from a 2.25 V to 3.6 V input, featuring voltage-mode PWM control in a compact 32-pin LFCSP 5x5 mm package. Its high switching frequency and dual outputs suit power-dense mobile and portable processor core supply designs.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 32
- Lifecycle
- ACTIVE
- Datasheet
- MAX8855ETJ+T Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $10.1000(MOQ 1000)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX8855ETJ+T?
- Dual synchronous step-down channels, each capable of delivering 5 A output current
- 2 MHz fixed switching frequency for small inductor and capacitor selection
- 2.25 V to 3.6 V input voltage range targeting single-cell Li-Ion and 3.3 V bus rails
- Voltage-mode PWM control for predictable loop compensation
- Compact 32-pin LFCSP 5x5x0.75 mm package minimizing power stage footprint
What is MAX8855ETJ+T used for?
The MAX8855ETJ+T is primarily used to generate multiple processor and memory core voltages in handheld devices, smartphones, and portable media players powered from a single-cell lithium-ion battery. Its dual 5 A channels and 2 MHz switching frequency enable highly integrated power supplies for application processors that demand fast load transient response and small PCB area.
What are the specifications of MAX8855ETJ+T?
| Manufacturer Package Code | 32-LFCSP-5X5X0.75 |
| Date Of Intro | 2007-08-17 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 3.6V |
| Input Voltage-Min | 2.25V |
| Input Voltage-Nom | 3.3V |
| JESD-30 Code | S-PQCC-N32 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 5A |
| Output Voltage-Max | 3.24V |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 15mA |
| 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 | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat 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 |
Where can I find the MAX8855ETJ+T datasheet?
MAX8855ETJ+T Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX8855ETJ+T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does MAX8855ETJ+T support, and is it compatible with a single-cell Li-Ion battery discharge profile?
MAX8855ETJ+T accepts a 2.25 V to 3.6 V input, which closely matches the discharge window of a single-cell Li-Ion battery (nominally 3.7 V, down to 2.7 V under load cutoff). This makes it a direct fit for battery-powered portable designs where the supply rail tracks cell voltage over its discharge cycle.
How does the 2 MHz switching frequency of MAX8855ETJ+T reduce passive component size compared to a 300 kHz buck converter?
Operating at 2 MHz allows the use of inductors in the 1 µH range and output capacitors under 10 µF, compared to 10–47 µH and larger capacitors needed at 300 kHz. The smaller passives shrink total solution size significantly, critical when fitting dual 5 A power rails into compact handheld PCBs with limited height clearance.
What are the thermal and footprint implications of using the 32-pin LFCSP package for MAX8855ETJ+T in a high-current design?
The 32-pin LFCSP measures 5x5x0.75 mm with an exposed thermal pad that improves heat dissipation at dual 5 A loads. Designers should plan PCB copper pours and vias under the pad to maintain junction temperature within spec, especially when both channels are loaded simultaneously in a 3.3 V to 1.0 V conversion scenario.
How many output channels does MAX8855ETJ+T provide, and can they be configured for different output voltages independently?
MAX8855ETJ+T provides 2 independent synchronous buck channels, each rated at 5 A output current. The output voltages on each channel are set independently via external resistor dividers, enabling separate core and I/O rail voltages — for example, 1.0 V for a processor core and 1.8 V for DDR memory from the same IC.
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Why Buy from FindMyChip
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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $10.1000 | $10100.00 |
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