LTC3833EUDC#TRPBF

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LTC3833EUDC#TRPBF

+Nomenclature

IC REG CTRLR BUCK 20QFN

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Spécifications

Attribut Valeur
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

Présentation

Description

LTC3833EUDC#TRPBF is a Linear Technology (now Analog Devices) dual synchronous buck regulator IC. It contains two PWM-controlled, current-mode switching regulators that can be run in interleaved/multi-phase mode to generate one or two low-voltage rails from a higher DC input. Key features typically include a wide input range, high efficiency, soft-start, enable control, precise output regulation, and protections such as current limit, thermal shutdown, and UVLO. It’s aimed at compact, efficient power supplies for automotive, industrial, and telecom applications where dual outputs or a high-current single rail are needed. The EUDC suffix denotes the device variant/package and RoHS Pb-free status; the #TRPBF suffix indicates Tape-and-Reel packaging with Pb-free leads. For exact electrical specs, refer to the LTC3833 data sheet, which provides pinout, typical application circuits, and design equations.

Equivalent

There isn’t a direct drop-in cross reference for LTC3833EUDC#TRPBF. To suggest substitutes, please share your requirements: input voltage range, number of channels, per-channel current, output voltages, switching frequency, and preferred package. With those, I can propose close equivalents from TI, Analog Devices, Monolithic Power, etc.

Features

Here are the typical features of LTC3833EUDC#TRPBF:
- Dual, 2-phase interleaved synchronous buck controller for multi-phase VRMs
- Wide input range suitable for 4V–36V rail applications
- Two independent current-mode PWM regulators with cycle-by-cycle current limit (supports current sharing)
- Programmable switching frequency (external resistor) with options for spread-spectrum
- External feedback for adjustable output voltage; includes soft-start
- Enable input and Power-Good status output
- Protections: overcurrent/short-circuit, overvoltage, thermal shutdown, and undervoltage protection
- Optimized for high efficiency and fast transient response in multi-phase designs
- Pb-Free, EUDC package version with TRPBF tape-and-reel packaging
Note: exact pinout and voltage ranges are as per the LTC3833 datasheet for the EUDC/TRPBF variant.

Pinout

- Pin count: 28 pins (28-pin package, e.g., EUDC TRPBF).
- Function: Three-phase synchronous buck DC-DC regulator controller (multi-output voltage regulator) with gate-drive outputs for external MOSFETs to generate multiple regulated rails from a higher input voltage.

Manufacturer

- Manufacturer: Analog Devices, Inc. (ADI) — the product line uses the LTC prefix from Linear Technology, which ADI acquired in 2017.
- Company type: An American multinational semiconductor company that designs, manufactures, and markets analog, mixed-signal, and DSP integrated circuits.

Application

LTC3833EUDC#TRPBF is a dual, high-efficiency, synchronous buck regulator. Typical application areas include:
- Automotive power systems (ECUs, infotainment, gateways) requiring wide input range and two rails
- Industrial/automation power supplies and motor-drive front ends
- Telecom and datacom equipment (multi-rail auxiliary supplies, edge devices)
- Data-center/servers as a point-of-load (POL) power solution
- Battery-powered and portable devices with wide Vin and high efficiency
It is suitable for generating multiple regulated rails from a single wide-input supply.

Package

Package type: 28‑pin QFN (LQFN) with an exposed thermal pad. TRPBF = Tape‑and‑Reel, Pb‑free.

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