LTC3355EUF#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC3355EUF#PBF is a synchronous step-down DC/DC switching regulator by Analog Devices with 3V to 20V input range, 1A output current, and adjustable 2.7V to 5V output in a compact 20-pin QFN-EP package. Key specs: 1A output, 3V to 20V input, 2.7V to 5V output range, current-mode PWM control. Available in stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- LTC3355EUF#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.4700(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Synchronous step-down PWM regulator with 1A output current for single-supply embedded systems
- Wide 3V to 20V input range enabling use across 5V, 12V, and unregulated battery rails
- Adjustable 2.7V to 5V output voltage covering standard logic and MCU supply requirements
- Compact 20-pin QFN-EP package with exposed pad for improved thermal dissipation
Applications
The LTC3355EUF#PBF is ideal for point-of-load power conversion in portable instruments, industrial sensors, and IoT gateways that need a regulated 2.7V to 5V supply from a 3V to 20V input. Its synchronous switching architecture maximizes battery run time in handheld equipment powered from 12V lead-acid or Li-ion battery packs.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1710 |
| YTEOL | 10 |
| Additional Feature | OUTPUT VOLTAGE RANGE FROM 2.7 VOLT TO 5 VOLT |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 5.5A |
| Output Voltage-Max | 5V |
| Output Voltage-Min | 2.7V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1250kHz |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output voltage range and current can the LTC3355EUF#PBF deliver?
The LTC3355EUF#PBF delivers an adjustable output from 2.7V to 5V at up to 1A, making it well-suited for powering 3.3V microcontrollers and 5V logic from industrial 12V or 24V rails in embedded system designs using a 20-pin QFN package.
Which input voltage sources are compatible with the LTC3355EUF#PBF in portable designs?
The device accepts 3V to 20V inputs, covering single-cell Li-ion batteries around 3.6V to 4.2V, 12V lead-acid packs, and unregulated 15V to 20V adapters, providing design flexibility in battery-operated IoT nodes, portable test equipment, and field instruments requiring a stable 1A regulated output.
How does the synchronous topology of LTC3355EUF#PBF improve efficiency compared to non-synchronous regulators?
The synchronous step-down topology replaces the freewheeling diode with an active MOSFET switch, reducing conduction losses and improving conversion efficiency by several percentage points at 1A load currents across the 2.7V to 5V output range, extending battery run time in portable designs operating from the full 3V to 20V input span.
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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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| 1+ | $10.4500 | $10.45 |
| 10+ | $7.1180 | $71.18 |
| 19+ | $5.9200 | $112.48 |
| 500+ | $5.3000 | $2650.00 |
| 1000+ | $4.4700 | $4470.00 |
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