LTC3852EUDD#TRPBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC3852EUDD#TRPBF is a current-mode, synchronous step-down DC/DC controller operating from a 4 V to 38 V input range. It supports wide output voltage adjustment and high-efficiency PWM control in a compact 24-pin QFN package, designed for industrial and telecom power supply designs requiring accurate voltage regulation.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- LTC3852EUDD#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2800(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 LTC3852EUDD#TRPBF?
- Current-mode PWM control for fast transient response and inherent current limiting
- Wide input voltage range from 4 V to 38 V supporting a variety of power buses
- Synchronous rectification for improved power conversion efficiency
- Compact 24-pin QFN package enabling high-density PCB layouts
- Precision output voltage adjustment for regulated DC rails
- Suitable for multi-phase or paralleled converter configurations
What is LTC3852EUDD#TRPBF used for?
The LTC3852EUDD#TRPBF is well suited for industrial power supplies, telecommunications infrastructure, and server power management systems that require high-efficiency step-down regulation from intermediate voltage buses. Its 4 V to 38 V input range accommodates 12 V and 24 V distribution rails common in factory automation and networking equipment. Designers also use it in programmable logic controller (PLC) power stages and battery-powered systems requiring tight output voltage control.
What are the specifications of LTC3852EUDD#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1833 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 38V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PQCC-N24 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.05A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC24,.12X.2,20 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 810kHz |
| 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 |
| 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 | Thailand |
Where can I find the LTC3852EUDD#TRPBF datasheet?
LTC3852EUDD#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3852EUDD#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage bus can LTC3852EUDD#TRPBF regulate from in a 24 V industrial system?
The LTC3852EUDD#TRPBF accepts an input voltage from 4 V to 38 V, making it directly compatible with 12 V and 24 V distribution buses common in industrial automation. The nominal 15 V operating point allows margin for transient spikes without requiring additional input protection in most PLC or motor-drive power stages.
How does current-mode control in LTC3852EUDD#TRPBF benefit designs with fast load transients?
Current-mode PWM control gives the LTC3852EUDD#TRPBF inherent cycle-by-cycle current limiting and faster response to load changes compared to voltage-mode controllers. This reduces output capacitance requirements, enabling tighter output voltage deviation — typically within tens of millivolts — during load steps, which is critical for FPGA core rails and DSP supplies.
What are the PCB space savings from using the 24-pin QFN package instead of a larger SOIC package?
The 24-pin QFN package used by LTC3852EUDD#TRPBF provides an exposed thermal pad for heat dissipation and a smaller body footprint compared to a 24-lead SOIC, saving approximately 50% of board area. This compact form factor supports high-density power designs in telecom line cards and server power modules where board real estate is limited.
Is LTC3852EUDD#TRPBF lead-free and what does the TRPBF suffix indicate for tape-and-reel procurement?
The Pb-free code for this specific variant is listed as No, indicating it may not carry standard RoHS lead-free certification; designers should verify compliance requirements with the distributor before use in EU or RoHS-restricted markets. The TRPBF suffix confirms tape-and-reel packaging at the standard 4 V to 38 V rated reel quantity for automated assembly.
For a 48 V telecom bus step-down design, is LTC3852EUDD#TRPBF an appropriate controller choice?
No. The LTC3852EUDD#TRPBF is rated for a maximum input of 38 V, so a 48 V telecom bus would exceed its absolute maximum rating. For 48 V input designs, Analog Devices offers controllers such as LTC3890 or LTC7804 rated to 60 V or higher, providing 10 V or more of additional headroom for the nominal bus plus transients.
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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+ | $3.7700 | $3.77 |
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