LTC3561AEDD#PBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
LTC3561AEDD#PBF is a 4 MHz synchronous buck regulator from Analog Devices delivering up to 1 A from a 2.5 V to 5.5 V input with adjustable output from 0.8 V to 5 V. Its constant-frequency current-mode control and DFN-8 package make it ideal for compact battery-powered IoT and portable electronics.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC3561AEDD#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4500(MOQ 1)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC3561AEDD#PBF?
- 4 MHz constant-frequency current-mode switching for tiny external components
- 2.5 V to 5.5 V input voltage range covering Li-Ion and USB power
- Adjustable output voltage from 0.8 V to 5 V with a single resistor divider
- Up to 1 A continuous output current in a compact DFN-8 package
- Synchronous topology for high efficiency at light and heavy loads
- Supports operation from single-cell Li-Ion batteries at 2.5 V minimum input
What is LTC3561AEDD#PBF used for?
The LTC3561AEDD#PBF is designed for space-constrained portable devices such as wearables, wireless sensors, and handheld instruments that require a high-efficiency, high-frequency buck regulator from a single-cell Li-Ion or USB power source. Its 4 MHz switching frequency allows the use of tiny 1 µH to 2.2 µH inductors and small ceramic capacitors, keeping the total solution footprint under 10 mm². The adjustable output from 0.8 V to 5 V covers a wide range of core and I/O rail requirements within a single compact IC.
What are the specifications of LTC3561AEDD#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1698 |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 5V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | CONSTANT FREQUENCY |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.5V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 2.5A |
| Package Body Material | PLASTIC/EPOXY |
| 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 | 4000kHz |
| Technology | CMOS |
| 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 | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTC3561AEDD#PBF datasheet?
LTC3561AEDD#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3561AEDD#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What switching frequency does the LTC3561AEDD#PBF use, and how does it affect the external passive component size?
The LTC3561AEDD#PBF switches at a fixed 4 MHz, which allows the use of very small inductors in the 1 µH to 2.2 µH range and ceramic output capacitors as small as 4.7 µF. This high-frequency operation shrinks the total DC-DC solution area to under 10 mm², making it practical for IoT and wearable PCBs where inductor height and footprint are tightly constrained.
How wide is the output voltage adjustment range on the LTC3561AEDD#PBF, and which system rails does it cover?
The LTC3561AEDD#PBF output is adjustable from 0.8 V to 5 V using an external resistor divider, covering processor core voltages at 0.9 V to 1.2 V, LPDDR memory rails at 1.8 V, Wi-Fi and BLE module rails at 3.3 V, and general-purpose 5 V I/O rails — all from a single buck IC fed by a 2.5 V to 5.5 V input, eliminating the need for multiple fixed-output regulators in multi-rail designs.
Is the LTC3561AEDD#PBF suitable for single-cell Li-Ion battery-powered designs where input voltage drops below 3 V during discharge?
Yes. The LTC3561AEDD#PBF accepts inputs as low as 2.5 V, which covers the end-of-discharge voltage of most single-cell Li-Ion or LiPo batteries that reach approximately 2.7 V to 3.0 V at cut-off. With 1 A output capability maintained down to 2.5 V input and an output adjustable as low as 0.8 V, the regulator can continue supplying processor and peripheral rails throughout the full battery discharge cycle without requiring an additional boost stage.
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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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|---|---|---|
| 1+ | $4.1600 | $4.16 |
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