LTC3561AEDD#TRPBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
LTC3561AEDD#TRPBF is a 1 A, 4 MHz synchronous step-down DC/DC converter from Analog Devices operating from 2.5 V to 5.5 V input. It supports adjustable output from 0.8 V to 5 V using constant-frequency current-mode control for low-noise regulation. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC3561AEDD#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4500(MOQ 500)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1 A continuous output current with 2.5 V to 5.5 V input voltage range
- 4 MHz constant-frequency switching reduces output filter component size
- Adjustable output voltage from 0.8 V to 5 V covering a wide range of logic rails
- Current-mode control provides fast transient response and cycle-by-cycle overcurrent protection
- Compact leadless (DFN) package minimizes PCB footprint in space-constrained designs
Applications
The LTC3561AEDD#TRPBF is ideal for point-of-load regulation in portable electronics, wearable devices, and IoT modules that run from single-cell lithium-ion or USB 5 V rails requiring a tightly regulated sub-1 V or 1.8 V supply. Its 4 MHz switching frequency allows tiny external inductors and capacitors, reducing overall solution size in multi-rail power trees. The adjustable 0.8 V to 5 V output range also suits FPGA core, DDR memory, and RF transceiver supply rails in compact communication modules.
Specifications
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LTC3561AEDD#TRPBF support, and how does that suit lithium-ion battery applications?
The LTC3561AEDD#TRPBF accepts input voltages from 2.5 V to 5.5 V, which covers the full discharge range of a single-cell lithium-ion battery (approximately 2.7 V to 4.2 V) as well as USB 5 V rails. This broad range allows the converter to maintain a regulated output down to 0.8 V throughout the battery's usable discharge cycle without additional boost circuitry.
How does the 4 MHz switching frequency of the LTC3561AEDD#TRPBF reduce the size of external passive components?
At 4 MHz, the required inductance for a 1 A buck stage is typically 1 µH to 2.2 µH rather than the 10 µH or 22 µH needed at 400 kHz, and output capacitance can similarly shrink to a few microfarads. This results in a complete power solution that fits within a few square millimeters of PCB area, critical for wearable devices and wireless sensor nodes where every mm² counts.
Can the LTC3561AEDD#TRPBF generate both 1.8 V and 1.0 V core rails from a 3.3 V intermediate bus in a multi-rail FPGA power design?
The LTC3561AEDD#TRPBF's adjustable output range of 0.8 V to 5 V allows it to generate either a 1.0 V FPGA core rail or a 1.8 V I/O rail from a 2.5 V to 5.5 V input. Deploying two devices—one per rail—delivers up to 1 A per output at 4 MHz switching, with independent current-mode control loops providing stable, low-ripple regulation even under dynamic FPGA load transients.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
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.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $2.6625 | $1331.25 |
| 1000+ | $2.4500 | $2450.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”