LTC3833EUDC#TRPBF

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LTC3833EUDC#TRPBF

IC REG CTRLR BUCK 20QFN

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Specifications

Supplier Analog Devices Inc.
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputType Transistor Driver
Function Step-Down
OutputConfiguration Positive
Topology Buck
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 4.5V ~ 38V
Frequency-Switching 200kHz ~ 2MHz
SynchronousRectifier Yes
ClockSync No
ControlFeatures Enable, Frequency Control, Power Good, Soft Start, Tracking
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 20-WFQFN Exposed Pad

Overview

Description

LTC3833EUDC#TRPBF is Linear Technology’s (now Analog Devices) part number for a dual synchronous buck controller used to build multi-rail voltage regulators (VRMs). The EUDC code is the device/package/revision, and TRPBF indicates Tape-and-Reel Pb-free packaging.
Key points:
- Dual PWM-controlled buck regulator controller (requires external MOSFETs, inductors, etc.).
- Suitable for multiphase operation and high-current VRMs (CPU, GPU, telecom rails).
- Features typically include current-mode control, programmable switching frequency, soft-start, enable, and fault protections (OC/UV/short-circuit).
- Used to regulate multiple low-voltage rails from a higher input supply.
For exact electrical specs (voltage ranges, current capability, frequency, protection details) refer to the LTC3833 datasheet and the package drawing for the EUDC variant.

Features

Here are typical features of the LTC3833EUDC#TRPBF family (datasheet should be consulted for exact specs):
- Dual high‑voltage buck controllers for wide input range (up to ~60 V)
- Independent regulation with adjustable outputs via feedback resistors
- Current‑mode PWM control with good transient response
- Programmable switching frequency
- Soft‑start and output sequencing
- Enable/shutdown control
- UVLO/overvoltage protection and overcurrent protection
- Thermal shutdown / protection
- Power‑good signaling
- Remote sense capability and compensation options
- Interleaving or load‑sharing options between channels
- Pb‑free/TRPBF packaging (Tape & Reel, RoHS-compliant)
Note: Exact features (e.g., presence of integrated FETs, exact pinout, and switching frequency range) should be confirmed from the latest LTC3833 datasheet for the EUDC variant.

Package

QFN (leadless) package. The #TRPBF suffix indicates Tape-and-Reel packaging, Pb-free (RoHS compliant).

Pinout

- Pin count: 20 pins (20-pin package).
- Function: Dual high‑voltage, current‑mode PWM controller for synchronous buck regulators (multiphase). It drives two external N‑channel MOSFETs to generate multiple regulated rails; requires external FETs and feedback network.

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI). The LTC3833 was originally a Linear Technology part; Linear Technology was acquired by ADI in 2017, so ADI is the current maker.
Company type: A multinational semiconductor company that designs, manufactures, and sells analog, mixed-signal, and DSP integrated circuits.

Application

Applications: Two-channel, 3A synchronous buck regulator used to generate low-voltage rails from higher input for: automotive power systems (12–24V to 5V/3.3V rails), telecom/networking equipment, data-center and computing gear, industrial control and robotics, consumer and portable electronics, battery-powered devices, and point-of-load (POL) regulation for FPGAs/ASICs. Suitable for multi-rail power modules, pre-regulation stages, and space-constrained, high-efficiency DC–DC applications.

Equivalent

Direct one-to-one equivalents vary by features and package. LTC3833EUDC#TRPBF is a 3-phase multiphase buck regulator controller (CPU-core supply type). For cross-references, consider other vendors’ 3-phase CPU-core buck controllers (TI, Onsemi, Renesas, Infineon). Please provide your required input range, output voltage, current, and preferred package to get precise replacements.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

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