LTC3633EUFD#TRPBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
LTC3633EUFD#TRPBF is a dual 3 A monolithic synchronous step-down regulator from Analog Devices with 3.6 V to 15 V input range, 4 MHz switching frequency, current-mode control, and LDO fallback operation. Ideal for point-of-load regulation in communications, industrial, and processor power supply designs.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LTC3633EUFD#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.8300(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 LTC3633EUFD#TRPBF?
- Dual 3 A output channels for two independent point-of-load rails in one IC
- Wide 3.6 V to 15 V input voltage range covering 5 V, 12 V, and intermediate bus architectures
- 4 MHz switching frequency enabling ultra-compact inductor and capacitor selection
- Current-mode control with burst mode for high efficiency at light loads
- Also operates as an LDO regulator providing design flexibility in low-dropout scenarios
What is LTC3633EUFD#TRPBF used for?
LTC3633EUFD#TRPBF is designed for high-density point-of-load power conversion in servers, networking equipment, and FPGAs requiring dual regulated outputs from a 12 V bus. Its 4 MHz switching frequency and monolithic integration reduce external component size, making it suitable for space-constrained industrial controllers, test instruments, and communication modules.
What are the specifications of LTC3633EUFD#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1712 |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATES AS LDO REGULATOR |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | BURST MODE |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 3.6V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PQCC-N28 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 4.5A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 4600kHz |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## LTC3633EUFD#TRPBF Alternates Showing results | Image |
| 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 |
Where can I find the LTC3633EUFD#TRPBF datasheet?
LTC3633EUFD#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3633EUFD#TRPBF?
Compatible alternatives and drop-in replacements for LTC3633EUFD#TRPBF:
suggested
Frequently Asked Questions
Can LTC3633EUFD#TRPBF power both 1.8 V and 3.3 V rails simultaneously from a 12 V input bus?
Yes. LTC3633EUFD#TRPBF provides 2 independent output channels each rated at 3 A, operating from a 3.6 V to 15 V input. With a nominal 12 V input, both channels can be independently programmed to deliver 1.8 V and 3.3 V outputs simultaneously, covering typical FPGA core and I/O rail requirements.
How does the 4 MHz switching frequency of LTC3633EUFD#TRPBF benefit PCB size and filter design compared to lower-frequency regulators?
Operating at 4 MHz allows LTC3633EUFD#TRPBF to use inductors smaller than 1 µH and ceramic capacitors in the nF range, dramatically reducing the PCB footprint compared to a 300 kHz regulator requiring much larger magnetics. This is critical for high-density server blades and communications hardware.
What happens to LTC3633EUFD#TRPBF efficiency when the load current drops below rated levels, such as in standby mode?
LTC3633EUFD#TRPBF uses burst mode control technique, which reduces switching losses by skipping pulses at light loads. This maintains high efficiency when current demand drops well below the 3 A rated output, extending battery life in portable systems or reducing heat dissipation in server idle states.
Is LTC3633EUFD#TRPBF RoHS-compliant, and what packaging options are available for automated production?
LTC3633EUFD#TRPBF carries a Pbfree Code of No, indicating this specific variant is not fully RoHS lead-free. The TRPBF suffix confirms tape-and-reel packaging for automated SMT assembly. Engineers requiring a RoHS-compliant version should verify an alternate Analog Devices suffix that meets lead-free requirements for their region.
Related Guides
TLV76033 Selection Guide: Headroom, Heat, and Sourcing
Choose a TLV76033 3.3-V supply using manufacturer ratings, load profiles, dropout calculations, thermal checks, and exact orderable parts.
Nov 14, 2026
DP83TG720SWRHATQ1 Automotive Ethernet Board Design Guide
A practical DP83TG720SWRHATQ1 board checklist for host interfaces, startup, channel validation, qualified variants, and sourcing.
Nov 14, 2026
BQ76942PFBR Battery Monitor Selection and Procurement Guide
Choose BQ76942PFBR by cell count, protection architecture, factory configuration, measurement needs, and a controlled sourcing specification.
Nov 13, 2026
SEP0640Q38CB Surge Protection Board Validation Guide
Validate a SEP0640Q38CB protection network through operating-envelope review, surge-current routing, recovery tests, and assembly checks.
Nov 13, 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
LT3062EDCB#TRPBF
Small Outline No-lead
Integrated Circuit
LT3062EDCB#TRMPBF
Small Outline No-lead
Integrated Circuit
LT8641IUDC#TRPBF
Other
Integrated Circuit
HMC412AMS8GTR
Small Outline Packages
Integrated Circuit
LT3062HMS8E#PBF
Small Outline Packages
Integrated Circuit
LT3062IMS8E#PBF
Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $14.3610 | $14.36 |
| 19+ | $7.7300 | $146.87 |
| 250+ | $6.3375 | $1584.38 |
| 1000+ | $5.8300 | $5830.00 |
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit